#include "arm_math.h" #include "PMSM_FOC_Core.h" #include "foc/foc_config.h" #include "foc/motor/motor_param.h" #include "foc/core/e_ctrl.h" #include "math/fix_math.h" #include "math/fast_math.h" #include "foc/motor/current.h" #include "foc/motor/motor.h" #include "foc/core/svpwm.h" #include "foc/core/thro_torque.h" #include "foc/core/foc_observer.h" #include "foc/core/F_Calc.h" #include "foc/samples.h" #include "foc/limit.h" #include "foc/mc_error.h" #include "app/nv_storage.h" #include "bsp/bsp_driver.h" #include "libs/logger.h" #include "math/fir.h" #define _DEBUG(fmt, args...) sys_debug(fmt, ##args) PMSM_FOC_Ctrl gFoc_Ctrl; static bool g_focinit = false; static u32 PMSM_FOC_Debug_Task(void *p); static __INLINE void RevPark(DQ_t *dq, float angle, AB_t *alpha_beta) { float c,s; #if 0 SinCos_Lut(angle, &s, &c); #else s = gFoc_Ctrl.out.sin; c = gFoc_Ctrl.out.cos; #endif alpha_beta->a = dq->d * c - dq->q * s; alpha_beta->b = dq->d * s + dq->q * c; } static __INLINE void RevClark(AB_t *alpha_beta, float *ABC){ ABC[0] = alpha_beta->a; ABC[1] = -alpha_beta->a * 0.5f + alpha_beta->b * SQRT3_BY_2; ABC[2] = -alpha_beta->a * 0.5f - alpha_beta->b * SQRT3_BY_2; } static __INLINE void Clark(float A, float B, float C, AB_t *alpha_beta){ alpha_beta->a = A; alpha_beta->b = ONE_BY_SQRT3 * (B - C); } static __INLINE void Park(AB_t *alpha_beta, float angle, DQ_t *dq) { float c,s; #if 0 SinCos_Lut(angle, &s, &c); #else s = gFoc_Ctrl.out.sin; c = gFoc_Ctrl.out.cos; #endif dq->d = alpha_beta->a * c + alpha_beta->b * s; dq->q = -alpha_beta->a * s + alpha_beta->b * c; } void PMSM_FOC_ABC2Dq(float a, float b, float c, float *d, float *q) { AB_t ab; DQ_t dq; Clark(a, b, c, &ab); Park(&ab, 0, &dq); *d = dq.d; *q = dq.q; } #if 0 #define VD_PRIO_HIGH static __INLINE float Circle_Limitation(DQ_t *vdq, float vDC, float module, DQ_t *out) { float sq_vdq = vdq->d * vdq->d + vdq->q * vdq->q; float vDC_m = vDC * module * SQRT3_BY_2; float sq_vDC = vDC_m * vDC_m; if (sq_vdq > sq_vDC) { #ifdef VD_PRIO_HIGH out->d = vdq->d; out->q = sqrtf(sq_vDC - out->d*out->d); #else float r = sqrtf(sq_vDC / sq_vdq); out->d = vdq->d * r; out->q = vdq->q * r; #endif }else { out->d = vdq->d; out->q = vdq->q; } return sqrtf(sq_vdq/sq_vDC); } #endif static __INLINE void FOC_Set_DqRamp(dq_Rctrl *c, float target, int time) { float cp = c->s_Cp; c->s_FinalTgt = target; c->s_Step = (c->s_FinalTgt - cp) / (float)time; } static __INLINE float FOC_Get_DqRamp(dq_Rctrl *c) { if (++c->n_StepCount == c->n_CtrlCount) { c->s_Cp += c->s_Step; if (c->s_Step < 0) { if (c->s_Cp < c->s_FinalTgt) { c->s_Cp = c->s_FinalTgt; } }else { if (c->s_Cp > c->s_FinalTgt) { c->s_Cp = c->s_FinalTgt; } } c->n_StepCount = 0; } return c->s_Cp; } static __INLINE void FOC_DqRamp_init(dq_Rctrl *c, int count) { c->n_CtrlCount = count; c->n_StepCount = 0; c->s_Cp = 0; c->s_FinalTgt = 0; c->s_Step = 0; } static __INLINE void FOC_Set_iDqRamp(dq_Rctrl *c, float target) { FOC_Set_DqRamp(c, target, (/*CONFIG_IDQ_CTRL_TS/CONFIG_SPD_CTRL_TS - 1*/CURRENT_LOOP_RAMP_COUNT)); } static __INLINE void FOC_Set_vDqRamp(dq_Rctrl *c, float target) { FOC_Set_DqRamp(c, target, (CONFIG_FOC_VDQ_RAMP_FINAL_TIME/1000*((CONFIG_IDQ_CTRL_TS/CONFIG_FOC_VDQ_RAMP_TS)))); } static void PMSM_FOC_Reset_PID(void) { PI_Controller_Reset(&gFoc_Ctrl.pi_id, 0); PI_Controller_Reset(&gFoc_Ctrl.pi_iq, 0); PI_Controller_Reset(&gFoc_Ctrl.pi_lock, 0); PI_Controller_Reset(&gFoc_Ctrl.pi_power, 0); #ifdef CONFIG_SPEED_LADRC ladrc_reset(&gFoc_Ctrl.vel_lim_adrc, 0, 0); ladrc_reset(&gFoc_Ctrl.vel_adrc, 0, 0); #else PI_Controller_Reset(&gFoc_Ctrl.pi_vel, 0); PI_Controller_Reset(&gFoc_Ctrl.pi_vel_lim, 0); #endif } static void PMSM_FOC_Conf_PID(void) { float slow_ctrl_ts = (1.0f/(float)CONFIG_SPD_CTRL_TS); gFoc_Ctrl.pi_id.kp = nv_get_foc_params()->pid_conf[PID_D_id].kp; gFoc_Ctrl.pi_id.ki = nv_get_foc_params()->pid_conf[PID_D_id].ki; gFoc_Ctrl.pi_id.kd = nv_get_foc_params()->pid_conf[PID_D_id].kd; gFoc_Ctrl.pi_id.DT = (1.0f/(float)CONFIG_IDQ_CTRL_TS); gFoc_Ctrl.pi_iq.kp = nv_get_foc_params()->pid_conf[PID_Q_id].kp; gFoc_Ctrl.pi_iq.ki = nv_get_foc_params()->pid_conf[PID_Q_id].ki; gFoc_Ctrl.pi_iq.kd = nv_get_foc_params()->pid_conf[PID_Q_id].kd; gFoc_Ctrl.pi_iq.DT = (1.0f/(float)CONFIG_IDQ_CTRL_TS); gFoc_Ctrl.pi_power.kp = nv_get_foc_params()->pid_conf[PID_Pow_id].kp; gFoc_Ctrl.pi_power.ki = nv_get_foc_params()->pid_conf[PID_Pow_id].ki; gFoc_Ctrl.pi_power.kd = nv_get_foc_params()->pid_conf[PID_Pow_id].kd; gFoc_Ctrl.pi_power.DT = slow_ctrl_ts; gFoc_Ctrl.pi_lock.kp = nv_get_foc_params()->pid_conf[PID_Lock_id].kp; gFoc_Ctrl.pi_lock.ki = nv_get_foc_params()->pid_conf[PID_Lock_id].ki; gFoc_Ctrl.pi_lock.kd = nv_get_foc_params()->pid_conf[PID_Lock_id].kd; gFoc_Ctrl.pi_lock.DT = slow_ctrl_ts; #ifdef CONFIG_SPEED_LADRC ladrc_init(&gFoc_Ctrl.vel_lim_adrc, slow_ctrl_ts, nv_get_foc_params()->f_adrc_vel_lim_Wo, nv_get_foc_params()->f_adrc_vel_lim_Wcv, nv_get_foc_params()->f_adrc_vel_lim_B0); ladrc_init(&gFoc_Ctrl.vel_adrc, slow_ctrl_ts, nv_get_foc_params()->f_adrc_vel_Wo, nv_get_foc_params()->f_adrc_vel_Wcv, nv_get_foc_params()->f_adrc_vel_B0); #else gFoc_Ctrl.pi_vel_lim.kp = nv_get_foc_params()->pid_conf[PID_TRQ_id].kp; gFoc_Ctrl.pi_vel_lim.ki = nv_get_foc_params()->pid_conf[PID_TRQ_id].ki; gFoc_Ctrl.pi_vel_lim.kd = nv_get_foc_params()->pid_conf[PID_TRQ_id].kd; gFoc_Ctrl.pi_vel_lim.DT = slow_ctrl_ts; gFoc_Ctrl.pi_vel.kp = nv_get_foc_params()->pid_conf[PID_Spd_id].kp; gFoc_Ctrl.pi_vel.ki = nv_get_foc_params()->pid_conf[PID_Spd_id].ki; gFoc_Ctrl.pi_vel.kd = nv_get_foc_params()->pid_conf[PID_Spd_id].kd; gFoc_Ctrl.pi_vel.DT = slow_ctrl_ts; #endif } static void PMSM_FOC_UserInit(void) { memset(&gFoc_Ctrl.userLim, 0, sizeof(gFoc_Ctrl.userLim)); gFoc_Ctrl.userLim.s_iDCLim = min(nv_get_foc_params()->s_LimitiDC, gFoc_Ctrl.hwLim.s_iDCMax); gFoc_Ctrl.userLim.s_motRPMLim = min(nv_get_foc_params()->s_maxRPM, gFoc_Ctrl.hwLim.s_motRPMMax); gFoc_Ctrl.userLim.s_torqueLim = nv_get_foc_params()->s_maxTorque;//MAX_TORQUE; gFoc_Ctrl.userLim.s_PhaseCurrLim = min(nv_get_foc_params()->s_PhaseCurrLim, gFoc_Ctrl.hwLim.s_PhaseCurrMax); gFoc_Ctrl.userLim.s_vDCMaxLim = nv_get_foc_params()->s_maxDCVol; gFoc_Ctrl.userLim.s_vDCMinLim = nv_get_foc_params()->s_minDCVol; gFoc_Ctrl.userLim.s_iDCeBrkLim = nv_get_foc_params()->s_iDCeBrkLim; gFoc_Ctrl.userLim.s_PhaseVoleBrkLim = gFoc_Ctrl.hwLim.s_PhaseVolMax; } void PMSM_FOC_RT_LimInit(void) { gFoc_Ctrl.protLim.s_iDCLim = HW_LIMIT_NONE; gFoc_Ctrl.protLim.s_TorqueLim = HW_LIMIT_NONE; eRamp_init_target2(&gFoc_Ctrl.rtLim.rpmLimRamp, gFoc_Ctrl.userLim.s_motRPMLim, CONFIG_LIMIT_RAMP_TIME); eRamp_init_target2(&gFoc_Ctrl.rtLim.torqueLimRamp, gFoc_Ctrl.userLim.s_torqueLim, CONFIG_LIMIT_RAMP_TIME); eRamp_init_target2(&gFoc_Ctrl.rtLim.DCCurrLimRamp, gFoc_Ctrl.userLim.s_iDCLim, CONFIG_LIMIT_RAMP_TIME); } void PMSM_FOC_CoreInit(void) { PMSM_FOC_Conf_PID(); memset(&gFoc_Ctrl.in, 0, sizeof(FOC_InP)); memset(&gFoc_Ctrl.out, 0, sizeof(FOC_OutP)); gFoc_Ctrl.hwLim.s_iDCMax = CONFIG_MAX_VBUS_CURRENT; gFoc_Ctrl.hwLim.s_motRPMMax = CONFIG_MAX_MOT_RPM; gFoc_Ctrl.hwLim.s_PhaseCurrMax = CONFIG_MAX_PHASE_CURR; gFoc_Ctrl.hwLim.s_PhaseVolMax = CONFIG_MAX_PHASE_VOL; gFoc_Ctrl.hwLim.s_vDCMax = CONFIG_MAX_DC_VOL; gFoc_Ctrl.hwLim.s_torqueMax = CONFIG_MAX_MOTOR_TORQUE; gFoc_Ctrl.hwLim.s_FWDCurrMax = CONFIG_MAX_FW_D_CURR; if (!g_focinit) { PMSM_FOC_UserInit(); PMSM_FOC_RT_LimInit(); shark_task_create(PMSM_FOC_Debug_Task, NULL); g_focinit = true; //_DEBUG("User Limit:\n"); //_DEBUG("dc %f, rpm %f, torque %f, phase %f, vDCmax %f, vDCmin %f, ebrk %f\n", gFoc_Ctrl.userLim.s_iDCLim, gFoc_Ctrl.userLim.s_motRPMLim, gFoc_Ctrl.userLim.s_torqueLim, // gFoc_Ctrl.userLim.s_PhaseCurrLim, gFoc_Ctrl.userLim.s_vDCMaxLim, gFoc_Ctrl.userLim.s_vDCMinLim, gFoc_Ctrl.userLim.s_TorqueBrkLim); //_DEBUG("Hw Limit:\n"); //_DEBUG("dc %f, rpm %f, torque %f, phase %f\n", gFoc_Ctrl.hwLim.s_iDCMax, gFoc_Ctrl.hwLim.s_motRPMMax, gFoc_Ctrl.hwLim.s_torqueMax, gFoc_Ctrl.hwLim.s_PhaseCurrMax); } gFoc_Ctrl.userLim.s_TorqueBrkLim = mc_get_ebrk_torque(); gFoc_Ctrl.params.n_modulation = CONFIG_SVM_MODULATION;//SVM_Modulation; gFoc_Ctrl.params.n_PhaseFilterCeof = CONFIG_CURR_LP_CEOF; gFoc_Ctrl.params.n_poles = nv_get_motor_params()->poles;//MOTOR_POLES; gFoc_Ctrl.params.lq = nv_get_motor_params()->lq; gFoc_Ctrl.params.ld = nv_get_motor_params()->ld; gFoc_Ctrl.params.flux = nv_get_motor_params()->flux_linkage; gFoc_Ctrl.in.s_manualAngle = INVALID_ANGLE; gFoc_Ctrl.in.s_dqAngle = INVALID_ANGLE; gFoc_Ctrl.in.b_fwEnable = nv_get_foc_params()->n_FwEnable; gFoc_Ctrl.in.s_vDC = nv_get_foc_params()->s_maxDCVol;//(CONFIG_RATED_DC_VOL); gFoc_Ctrl.in.s_angleLast = INVALID_ANGLE; gFoc_Ctrl.out.n_RunMode = CTRL_MODE_OPEN; gFoc_Ctrl.out.f_vdqRation = 0; eRamp_init_target2(&gFoc_Ctrl.in.cruiseRpmRamp, 0, CONFIG_CRUISE_RAMP_TIME); FOC_DqRamp_init(&gFoc_Ctrl.idq_ctl[0], 1); FOC_DqRamp_init(&gFoc_Ctrl.idq_ctl[1], 1); FOC_DqRamp_init(&gFoc_Ctrl.vdq_ctl[0], (CONFIG_FOC_VDQ_RAMP_TS)); FOC_DqRamp_init(&gFoc_Ctrl.vdq_ctl[1], (CONFIG_FOC_VDQ_RAMP_TS)); PMSM_FOC_Reset_PID(); foc_observer_init(); gFoc_Ctrl.plot_type = Plot_None; } /* 通过三相电流重构母线电流,和单电阻采样正好相反,原理一致 */ static __INLINE void PMSM_FOC_Calc_iDC_Fast(void) { #if 0 float deadtime = (float)(NS_2_TCLK(PWM_DEAD_TIME_NS + HW_DEAD_TIME_NS))/(float)FOC_PWM_Half_Period; float duty_pu[3]; duty_pu[0] = (float)gFoc_Ctrl.out.n_Duty[0] / (float)FOC_PWM_Half_Period; duty_pu[1] = (float)gFoc_Ctrl.out.n_Duty[1] / (float)FOC_PWM_Half_Period; duty_pu[2] = (float)gFoc_Ctrl.out.n_Duty[2] / (float)FOC_PWM_Half_Period; float *iABC = gFoc_Ctrl.in.s_iABC; float iDC; if ((duty_pu[0] >= duty_pu[1]) && (duty_pu[1] >= duty_pu[2])) { iDC = iABC[0] * MAX(duty_pu[0] - duty_pu[1] - deadtime, 0) + (iABC[0] + iABC[1]) * MAX(duty_pu[1] - duty_pu[2] - deadtime, 0); if (iABC[0] < 0) { iDC = iDC + iABC[0] * deadtime; } if (iABC[1] > 0) { iDC = iDC + iABC[0] * deadtime; }else { iDC = iDC + (iABC[0] + iABC[1]) * deadtime; } if (iABC[2] > 0) { iDC = iDC + (iABC[0] + iABC[1]) * deadtime; } }else if ((duty_pu[0] >= duty_pu[2]) && (duty_pu[2] >= duty_pu[1])) { iDC = iABC[0] * MAX(duty_pu[0] - duty_pu[2] - deadtime, 0) + (iABC[0] + iABC[2]) * MAX(duty_pu[2] - duty_pu[1] - deadtime, 0); if (iABC[0] < 0) { iDC = iDC + iABC[0] * deadtime; } if (iABC[2] > 0) { iDC = iDC + iABC[0] * deadtime; }else { iDC = iDC + (iABC[0] + iABC[2]) * deadtime; } if (iABC[1] > 0) { iDC = iDC + (iABC[0] + iABC[2]) * deadtime; } }else if ((duty_pu[1] >= duty_pu[0]) && (duty_pu[0] >= duty_pu[2])) { iDC = iABC[1] * MAX(duty_pu[1] - duty_pu[0] - deadtime, 0) + (iABC[1] + iABC[0]) * MAX(duty_pu[0] - duty_pu[2] - deadtime, 0); if (iABC[1] < 0) { iDC = iDC + iABC[1] * deadtime; } if (iABC[0] > 0) { iDC = iDC + iABC[1] * deadtime; }else { iDC = iDC + (iABC[1] + iABC[0]) * deadtime; } if (iABC[2] > 0) { iDC = iDC + (iABC[1] + iABC[0]) * deadtime; } }else if ((duty_pu[1] >= duty_pu[2]) && (duty_pu[2] >= duty_pu[0])) { iDC = iABC[1] * MAX(duty_pu[1] - duty_pu[2] - deadtime, 0) + (iABC[1] + iABC[2]) * MAX(duty_pu[2] - duty_pu[0] - deadtime, 0); if (iABC[1] < 0) { iDC = iDC + iABC[1] * deadtime; } if (iABC[2] > 0) { iDC = iDC + iABC[1] * deadtime; }else { iDC = iDC + (iABC[1] + iABC[2]) * deadtime; } if (iABC[0] > 0) { iDC = iDC + (iABC[1] + iABC[2]) * deadtime; } }else if ((duty_pu[2] >= duty_pu[0]) && (duty_pu[0] >= duty_pu[1])) { iDC = iABC[2] * MAX(duty_pu[2] - duty_pu[0] - deadtime, 0) + (iABC[2] + iABC[0]) * MAX(duty_pu[0] - duty_pu[1] - deadtime, 0); if (iABC[2] < 0) { iDC = iDC + iABC[2] * deadtime; } if (iABC[0] > 0) { iDC = iDC + iABC[2] * deadtime; }else { iDC = iDC + (iABC[2] + iABC[0]) * deadtime; } if (iABC[1] > 0) { iDC = iDC + (iABC[2] + iABC[0]) * deadtime; } }else { // duty_pu[2] >= duty_pu[1] && duty_pu[1] >= duty_pu[0] iDC = iABC[2] * MAX(duty_pu[2] - duty_pu[1] - deadtime, 0) + (iABC[2] + iABC[1]) * MAX(duty_pu[1] - duty_pu[0] - deadtime, 0); if (iABC[2] < 0) { iDC = iDC + iABC[2] * deadtime; } if (iABC[1] > 0) { iDC = iDC + iABC[2] * deadtime; }else { iDC = iDC + (iABC[2] + iABC[1]) * deadtime; } if (iABC[0] > 0) { iDC = iDC + (iABC[2] + iABC[1]) * deadtime; } } LowPass_Filter(gFoc_Ctrl.out.s_CalciDC2, iDC, 0.005f); #endif } #define CONFIG_PEAK_CNT 3 //计算经过的电周期内的最大值(peak 峰值) #define CONFIG_PHASE_UNBALANCE_THROLD 4.0F #define CONFIG_PHASE_UNBALANCE_R 0.1F static float phase_unbalance_r = 0.0f; static float phase_a_max, phase_b_max, phase_c_max; static u32 phase_unbalance_cnt; static __INLINE void PMSM_FOC_Phase_Unbalance(void) { static u32 _cycle_cnt = 0, _last_mod_cnt = 0; static float a_max = 0, b_max = 0, c_max = 0; static u32 _unbalance_cnt = 0; static u32 _unbalance_time = 0; float lowpass = gFoc_Ctrl.in.s_motVelRadusPers * FOC_CTRL_US / 2.0f; if (lowpass > 1.0f) { lowpass = 1.0f; } LowPass_Filter(gFoc_Ctrl.in.s_iABCFilter[0], gFoc_Ctrl.in.s_iABC[0], lowpass); LowPass_Filter(gFoc_Ctrl.in.s_iABCFilter[1], gFoc_Ctrl.in.s_iABC[1], lowpass); gFoc_Ctrl.in.s_iABCFilter[2] = -(gFoc_Ctrl.in.s_iABCFilter[0] + gFoc_Ctrl.in.s_iABCFilter[1]); if ((gFoc_Ctrl.in.s_angleLast == INVALID_ANGLE) || (gFoc_Ctrl.in.s_motVelRadusPers < 100)) { gFoc_Ctrl.in.s_angleLast = gFoc_Ctrl.in.s_motAngle; a_max = b_max = c_max = 0; _unbalance_cnt = 0; _unbalance_time = get_tick_ms(); _cycle_cnt = 0; _last_mod_cnt = 0; phase_unbalance_r = 0; return; } float delta_angle = gFoc_Ctrl.in.s_motAngle - gFoc_Ctrl.in.s_angleLast; if (delta_angle > 200 || delta_angle < -200) { //one cycle _cycle_cnt ++; } gFoc_Ctrl.in.s_angleLast = gFoc_Ctrl.in.s_motAngle; u32 mod_cnt = _cycle_cnt % CONFIG_PEAK_CNT; bool trigger = false; if ((mod_cnt == 0) && (_last_mod_cnt != mod_cnt)) { trigger = true; } _last_mod_cnt = mod_cnt; a_max = MAX(a_max, gFoc_Ctrl.in.s_iABCFilter[0] * (2.2f)); b_max = MAX(b_max, gFoc_Ctrl.in.s_iABCFilter[1] * (2.2f)); c_max = MAX(c_max, gFoc_Ctrl.in.s_iABCFilter[2] * (2.2f)); if (trigger) { //经过CONFIG_PEAK_CNT个周期,已经得到peak值 float i_min = 1000.0f, i_max = 0; if (a_max > i_max) { i_max = a_max; } if (a_max < i_min) { i_min = a_max; } if (b_max > i_max) { i_max = b_max; } if (b_max < i_min) { i_min = b_max; } if (c_max > i_max) { i_max = c_max; } if (c_max < i_min) { i_min = c_max; } float unbalance_r = (i_max - i_min - CONFIG_PHASE_UNBALANCE_THROLD)/(i_max + 1e-8f); if (unbalance_r >= CONFIG_PHASE_UNBALANCE_R) { if ((_unbalance_cnt++ >= 500) || (get_delta_ms(_unbalance_time) >= 1000*10)) { if (mc_set_critical_error(FOC_CRIT_PHASE_UNBalance_Err)) { mc_crit_err_add(FOC_CRIT_PHASE_UNBalance_Err, (s16)i_max, (s16)i_min); } } }else { _unbalance_cnt = 0; _unbalance_time = get_tick_ms(); } phase_unbalance_r = unbalance_r; phase_a_max = a_max; phase_b_max = b_max; phase_c_max = c_max; phase_unbalance_cnt = _unbalance_cnt; a_max = b_max = c_max = 0; } } /* 死区补偿 */ static __INLINE void PMSM_FOC_DeadTime_Compensate(s32 PWM_Half_Period) { #ifdef CONFIG_START_LINE_DTC_CURRENT float deadTime = (float)CONFIG_HW_DeadTime/2.0f; s32 dutyDTCA = 0; s32 dutyDTCB = 0; s32 dutyDTCC = 0; float r, delta; float iabs = ABS(gFoc_Ctrl.in.s_iABC_DT[0]); if (iabs > CONFIG_START_LINE_DTC_CURRENT) { delta = iabs - CONFIG_START_LINE_DTC_CURRENT; r = delta / (COMFIG_END_LINE_DTC_CURRENT - CONFIG_START_LINE_DTC_CURRENT); if (r > 1.0f) { r = 1.0f; } if (gFoc_Ctrl.in.s_iABC_DT[0] < 0) { r = -r; } dutyDTCA = (s32)(r * deadTime); } iabs = ABS(gFoc_Ctrl.in.s_iABC_DT[1]); if (iabs > CONFIG_START_LINE_DTC_CURRENT) { delta = iabs - CONFIG_START_LINE_DTC_CURRENT; r = delta / (COMFIG_END_LINE_DTC_CURRENT - CONFIG_START_LINE_DTC_CURRENT); if (r > 1.0f) { r = 1.0f; } if (gFoc_Ctrl.in.s_iABC_DT[1] < 0) { r = -r; } dutyDTCB = (s32)(r * deadTime); } iabs = ABS(gFoc_Ctrl.in.s_iABC_DT[2]); if (iabs > CONFIG_START_LINE_DTC_CURRENT) { delta = iabs - CONFIG_START_LINE_DTC_CURRENT; r = delta / (COMFIG_END_LINE_DTC_CURRENT - CONFIG_START_LINE_DTC_CURRENT); if (r > 1.0f) { r = 1.0f; } if (gFoc_Ctrl.in.s_iABC_DT[2] < 0) { r = -r; } dutyDTCC = (s32)(r * deadTime); } s32 dutyA = (s32)gFoc_Ctrl.out.n_Duty[0] + dutyDTCA; s32 dutyB = (s32)gFoc_Ctrl.out.n_Duty[1] + dutyDTCB; s32 dutyC = (s32)gFoc_Ctrl.out.n_Duty[2] + dutyDTCC; gFoc_Ctrl.out.n_Duty[0] = sclamp(dutyA, 0, PWM_Half_Period); gFoc_Ctrl.out.n_Duty[1] = sclamp(dutyB, 0, PWM_Half_Period); gFoc_Ctrl.out.n_Duty[2] = sclamp(dutyC, 0, PWM_Half_Period); #endif } //#define UPDATE_Lq_By_iq /* Q轴电感 通过Iq电流补偿 */ #define CONFIG_Volvec_Delay_Comp /* 电压矢量角度补偿 */ #define CONFIG_Volvec_Delay_Comp_Start_Vel 500 // rpm static float encoder_angle,obser_angle, obser_vel = 111111; static __INLINE bool PMSM_FOC_Update_Input(void) { AB_t iAB; float *iabc = gFoc_Ctrl.in.s_iABC; phase_current_get(iabc); PMSM_FOC_Calc_iDC_Fast(); Clark(iabc[0], iabc[1], iabc[2], &iAB); foc_observer_update(gFoc_Ctrl.out.s_OutVAB.a * TWO_BY_THREE, gFoc_Ctrl.out.s_OutVAB.b * TWO_BY_THREE, iAB.a, iAB.b); float enc_angle = motor_encoder_get_angle(); float enc_vel = motor_encoder_get_speed(); if (!foc_observer_diagnostic(enc_angle, enc_vel)){ /* detect encoder angle error, do something here */ if (!foc_observer_sensorless_stable()) { gFoc_Ctrl.in.s_motVelocity = 0; return false; } if (obser_vel == 111111) { obser_vel = foc_observer_sensorless_speed(); obser_angle = foc_observer_sensorless_angle(); encoder_angle = enc_angle; } enc_angle = foc_observer_sensorless_angle(); enc_vel = foc_observer_sensorless_speed(); } if (!gFoc_Ctrl.in.b_MTPA_calibrate && (gFoc_Ctrl.in.s_manualAngle != INVALID_ANGLE)) { gFoc_Ctrl.in.s_motAngle = gFoc_Ctrl.in.s_manualAngle; }else { gFoc_Ctrl.in.s_motAngle = enc_angle; } gFoc_Ctrl.in.s_motVelocity = enc_vel; LowPass_Filter(gFoc_Ctrl.in.s_motVelocityFiltered, gFoc_Ctrl.in.s_motVelocity, 0.01f); gFoc_Ctrl.in.s_motVelRadusPers = gFoc_Ctrl.in.s_motVelocityFiltered / 30.0f * PI * gFoc_Ctrl.params.n_poles; PMSM_FOC_Phase_Unbalance(); #ifdef CONFIG_DQ_STEP_RESPONSE gFoc_Ctrl.in.s_motAngle = 0; #endif gFoc_Ctrl.in.s_vDC = get_vbus_float(); get_phase_vols(gFoc_Ctrl.in.s_vABC); SinCos_Lut(gFoc_Ctrl.in.s_motAngle, &gFoc_Ctrl.out.sin, &gFoc_Ctrl.out.cos); Park(&iAB, gFoc_Ctrl.in.s_motAngle, &gFoc_Ctrl.out.s_RealIdq); float lowpass = gFoc_Ctrl.in.s_motVelRadusPers * FOC_CTRL_US * 2.0f; if (lowpass > 1.0f) { lowpass = 1.0f; }else if (lowpass <= 0.0001f) { lowpass = 0.001f; } LowPass_Filter(gFoc_Ctrl.out.s_FilterIdq.d, gFoc_Ctrl.out.s_RealIdq.d, lowpass); LowPass_Filter(gFoc_Ctrl.out.s_FilterIdq.q, gFoc_Ctrl.out.s_RealIdq.q, lowpass); /* 使用低通后的dq电流重新变换得到abc电流,给死区补偿使用 */ RevPark(&gFoc_Ctrl.out.s_FilterIdq, gFoc_Ctrl.in.s_motAngle, &iAB); RevClark(&iAB, gFoc_Ctrl.in.s_iABC_DT); #ifdef CONFIG_START_LINE_DTC_CURRENT gFoc_Ctrl.out.s_OutVdqDTC.d = 0; gFoc_Ctrl.out.s_OutVdqDTC.q = 0; #else AB_t vAB; vAB.a = (1.0f / 3.0f) * (2.0f * SIGN(gFoc_Ctrl.in.s_iABC_DT[0]) - SIGN(gFoc_Ctrl.in.s_iABC_DT[1]) - SIGN(gFoc_Ctrl.in.s_iABC_DT[2])); vAB.b = ONE_BY_SQRT3 * (SIGN(gFoc_Ctrl.in.s_iABC_DT[1]) - SIGN(gFoc_Ctrl.in.s_iABC_DT[2])); float dtc = ((float)CONFIG_HW_DeadTime/(float)FOC_PWM_Half_Period) * gFoc_Ctrl.in.s_vDC; vAB.a = vAB.a * dtc; vAB.b = vAB.b * dtc; Park(&vAB, gFoc_Ctrl.in.s_motAngle, &gFoc_Ctrl.out.s_OutVdqDTC); //used for vbus current calc #endif #ifdef CONFIG_Volvec_Delay_Comp if (gFoc_Ctrl.in.s_motVelocityFiltered >= CONFIG_Volvec_Delay_Comp_Start_Vel) { float next_angle = gFoc_Ctrl.in.s_motAngle + gFoc_Ctrl.in.s_motVelRadusPers / PI * 180.0f * (FOC_CTRL_US * 0.8f); rand_angle(next_angle); SinCos_Lut(next_angle, &gFoc_Ctrl.out.sin, &gFoc_Ctrl.out.cos); } #endif return true; } #ifdef CONFIG_DQ_STEP_RESPONSE float target_d = 0.0f; float target_q = 0.0f; #endif static u32 PMSM_FOC_Debug_Task(void *p) { if (gFoc_Ctrl.in.b_motEnable) { #ifdef CONFIG_DQ_STEP_RESPONSE if (gFoc_Ctrl.plot_type == Plot_D_Step) { plot_2data16(FtoS16x10(target_d), FtoS16x10(gFoc_Ctrl.out.s_RealIdq.d)); }if (gFoc_Ctrl.plot_type == Plot_Q_Step) { plot_2data16(FtoS16x10(target_q), FtoS16x10(gFoc_Ctrl.out.s_RealIdq.q)); } #else if (gFoc_Ctrl.plot_type == Plot_D_flow) { plot_2data16(FtoS16x10(gFoc_Ctrl.idq_ctl[0].s_Cp), FtoS16x10(gFoc_Ctrl.out.s_RealIdq.d)); }else if (gFoc_Ctrl.plot_type == Plot_Q_flow) { plot_2data16(FtoS16x10(gFoc_Ctrl.idq_ctl[1].s_Cp), FtoS16x10(gFoc_Ctrl.out.s_RealIdq.q)); }else if (gFoc_Ctrl.plot_type == Plot_DQ_Curr) { plot_3data16(FtoS16x10(gFoc_Ctrl.out.s_RealIdq.d), FtoS16x10(gFoc_Ctrl.out.s_RealIdq.q), FtoS16x10(gFoc_Ctrl.out.s_FilteriDC)); }else if (gFoc_Ctrl.plot_type == Plot_Spd_flow) { plot_2data16(gFoc_Ctrl.in.s_targetRPM, gFoc_Ctrl.in.s_motVelocity); } #endif } return 1; } static __INLINE float id_feedforward(float eW) { #ifdef CONFIG_CURRENT_LOOP_DECOUPE return -(gFoc_Ctrl.params.lq * gFoc_Ctrl.out.s_RealIdq.q * eW); #else return 0; #endif } static __INLINE float iq_feedforward(float eW) { #ifdef CONFIG_CURRENT_LOOP_DECOUPE return (gFoc_Ctrl.params.ld * gFoc_Ctrl.out.s_RealIdq.d + gFoc_Ctrl.params.flux) * eW; #else return 0; #endif } bool PMSM_FOC_Schedule(void) { gFoc_Ctrl.ctrl_count++; if (!PMSM_FOC_Update_Input()){ return false; } if (gFoc_Ctrl.out.n_RunMode != CTRL_MODE_OPEN) { float max_Vdc = gFoc_Ctrl.in.s_vDC * CONFIG_SVM_MODULATION; float max_vd = max_Vdc * SQRT3_BY_2; /* limiter Vd output for PI controller */ gFoc_Ctrl.pi_id.max = max_vd; gFoc_Ctrl.pi_id.min = -max_vd; #ifndef CONFIG_DQ_STEP_RESPONSE float target_d = FOC_Get_DqRamp(&gFoc_Ctrl.idq_ctl[0]); #endif float err = target_d - gFoc_Ctrl.out.s_RealIdq.d; float id_ff = id_feedforward(gFoc_Ctrl.in.s_motVelRadusPers); gFoc_Ctrl.in.s_targetVdq.d = PI_Controller_Current(&gFoc_Ctrl.pi_id, err, id_ff); #ifdef UPDATE_Lq_By_iq /* update kp&ki from lq for iq PI controller */ float lq = motor_get_lq_from_iq((s16)gFoc_Ctrl.out.s_FilterIdq.q); LowPass_Filter(gFoc_Ctrl.params.lq, lq, 0.01f); gFoc_Ctrl.pi_iq.kp = ((float)nv_get_foc_params()->n_currentBand * gFoc_Ctrl.params.lq); gFoc_Ctrl.pi_iq.ki = (nv_get_motor_params()->r/gFoc_Ctrl.params.lq); #endif /* limiter Vq output for PI controller */ float max_vq = sqrtf(SQ(max_vd) - SQ(gFoc_Ctrl.in.s_targetVdq.d)); gFoc_Ctrl.pi_iq.max = max_vq; gFoc_Ctrl.pi_iq.min = -max_vq; #ifndef CONFIG_DQ_STEP_RESPONSE float target_q = FOC_Get_DqRamp(&gFoc_Ctrl.idq_ctl[1]); #endif err = target_q - gFoc_Ctrl.out.s_RealIdq.q; float iq_ff = iq_feedforward(gFoc_Ctrl.in.s_motVelRadusPers); gFoc_Ctrl.in.s_targetVdq.q = PI_Controller_Current(&gFoc_Ctrl.pi_iq, err, iq_ff); }else { float max_Vdc = gFoc_Ctrl.in.s_vDC * CONFIG_SVM_MODULATION; float max_vd = max_Vdc * SQRT3_BY_2; float vd_ref = FOC_Get_DqRamp(&gFoc_Ctrl.vdq_ctl[0]); gFoc_Ctrl.in.s_targetVdq.d = fclamp(vd_ref, -max_vd, max_vd); float max_vq = sqrtf(SQ(max_vd) - SQ(gFoc_Ctrl.in.s_targetVdq.d)); float vq_ref = FOC_Get_DqRamp(&gFoc_Ctrl.vdq_ctl[1]); gFoc_Ctrl.in.s_targetVdq.q = fclamp(vq_ref, -max_vq, max_vq); } #if 0 gFoc_Ctrl.out.f_vdqRation = Circle_Limitation(&gFoc_Ctrl.in.s_targetVdq, gFoc_Ctrl.in.s_vDC, gFoc_Ctrl.params.n_modulation, &gFoc_Ctrl.out.s_OutVdq); gFoc_Ctrl.out.s_OutVdq.d *= SQRT3_BY_2; gFoc_Ctrl.out.s_OutVdq.q *= SQRT3_BY_2; #else gFoc_Ctrl.out.s_OutVdq.d = gFoc_Ctrl.in.s_targetVdq.d; gFoc_Ctrl.out.s_OutVdq.q = gFoc_Ctrl.in.s_targetVdq.q; #endif RevPark(&gFoc_Ctrl.out.s_OutVdq, gFoc_Ctrl.in.s_motAngle, &gFoc_Ctrl.out.s_OutVAB); SVM_Duty_Fix(&gFoc_Ctrl.out.s_OutVAB, gFoc_Ctrl.in.s_vDC, FOC_PWM_Half_Period, &gFoc_Ctrl.out); PMSM_FOC_DeadTime_Compensate((s32)FOC_PWM_Half_Period); phase_current_point(&gFoc_Ctrl.out); pwm_update_duty(gFoc_Ctrl.out.n_Duty[0], gFoc_Ctrl.out.n_Duty[1], gFoc_Ctrl.out.n_Duty[2]); pwm_update_sample(gFoc_Ctrl.out.n_Sample1, gFoc_Ctrl.out.n_Sample2, gFoc_Ctrl.out.n_CPhases); return true; } void PMSM_FOC_LogDebug(void) { sys_debug("DC curr %f --- %f, - %f\n", gFoc_Ctrl.out.s_CalciDC, gFoc_Ctrl.out.s_FilteriDC, gFoc_Ctrl.userLim.s_iDCLim); sys_debug("%s\n", gFoc_Ctrl.out.empty_load?"NoLoad Running":"Load Runing"); sys_debug("unbalance: %d, %f, %f, %f, %f\n", phase_unbalance_cnt, phase_unbalance_r, phase_a_max, phase_b_max, phase_c_max); if (obser_vel != 111111) { sys_debug("AB error: %f,%f,%f\n", obser_angle, encoder_angle, obser_vel); } } /*called in media task */ u8 PMSM_FOC_CtrlMode(void) { u8 preMode = gFoc_Ctrl.out.n_RunMode; if (!gFoc_Ctrl.in.b_motEnable) { gFoc_Ctrl.out.n_RunMode = CTRL_MODE_OPEN; }else if (gFoc_Ctrl.in.n_ctlMode == CTRL_MODE_OPEN) { gFoc_Ctrl.out.n_RunMode = CTRL_MODE_OPEN; }else if (gFoc_Ctrl.in.n_ctlMode == CTRL_MODE_SPD || gFoc_Ctrl.in.b_cruiseEna){ gFoc_Ctrl.out.n_RunMode = CTRL_MODE_SPD; }else if (gFoc_Ctrl.in.n_ctlMode == CTRL_MODE_CURRENT) { gFoc_Ctrl.out.n_RunMode = CTRL_MODE_CURRENT; }else if (gFoc_Ctrl.in.n_ctlMode == CTRL_MODE_EBRAKE) { gFoc_Ctrl.out.n_RunMode = CTRL_MODE_EBRAKE; }else { if (!gFoc_Ctrl.in.b_cruiseEna) { gFoc_Ctrl.out.n_RunMode = CTRL_MODE_TRQ; } } if (preMode != gFoc_Ctrl.out.n_RunMode) { if ((preMode == CTRL_MODE_SPD) && (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_TRQ)) { #ifdef CONFIG_SPEED_LADRC //ladrc_reset(&gFoc_Ctrl.vel_lim_adrc, gFoc_Ctrl.in.s_motVelocity, gFoc_Ctrl.in.s_targetTorque); ladrc_copy(&gFoc_Ctrl.vel_lim_adrc, &gFoc_Ctrl.vel_adrc); #else PI_Controller_Reset(&gFoc_Ctrl.pi_vel_lim, gFoc_Ctrl.in.s_targetTorque); #endif }else if ((preMode == CTRL_MODE_TRQ) && (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_SPD)) { #ifdef CONFIG_SPEED_LADRC ladrc_copy(&gFoc_Ctrl.vel_adrc, &gFoc_Ctrl.vel_lim_adrc); #else PI_Controller_Reset(&gFoc_Ctrl.pi_vel, gFoc_Ctrl.in.s_targetTorque); #endif }else if ((preMode == CTRL_MODE_CURRENT) && (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_TRQ)) { #ifdef CONFIG_SPEED_LADRC ladrc_reset(&gFoc_Ctrl.vel_lim_adrc, gFoc_Ctrl.in.s_motVelocity, gFoc_Ctrl.in.s_targetTorque); #else PI_Controller_Reset(&gFoc_Ctrl.pi_vel_lim, gFoc_Ctrl.in.s_targetTorque); #endif }else if ((preMode != gFoc_Ctrl.out.n_RunMode) && (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_EBRAKE)) { eCtrl_reset_Torque(gFoc_Ctrl.in.s_targetTorque); eCtrl_set_TgtTorque(motor_get_ebreak_toruqe(gFoc_Ctrl.in.s_motVelocity)); }else if ((preMode == CTRL_MODE_EBRAKE) && (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_SPD)) { #ifdef CONFIG_SPEED_LADRC ladrc_reset(&gFoc_Ctrl.vel_adrc, 0, F_get_air()); #else PI_Controller_Reset(&gFoc_Ctrl.pi_vel, F_get_air()); #endif } } return gFoc_Ctrl.out.n_RunMode; } #define RAMPE_1 CONFIG_RAMP_FIRST_TARGET static void crosszero_step_towards(float *value, float target) { static float no_cro_step = 2.0f; float v_now = *value; bool cross_zero = false; float high_ramp_torque = CONFIG_RAMP_SECOND_TARGET; if (target > 0) { if (v_now < -RAMPE_1) { step_towards(value, -RAMPE_1, 2.0f); cross_zero = true; }else if (v_now >= -RAMPE_1 && v_now <= high_ramp_torque) { step_towards(value, target, 0.03f); cross_zero = true; } }else if (target == 0) { if (v_now > high_ramp_torque) { step_towards(value, high_ramp_torque, 1.0f); cross_zero = true; }else if (v_now >= RAMPE_1 && v_now <= high_ramp_torque) { step_towards(value, target, 0.03f); cross_zero = true; } }else { if (v_now > high_ramp_torque) { step_towards(value, high_ramp_torque, 20.0f); cross_zero = true; }else if (v_now >= -RAMPE_1 && v_now <= high_ramp_torque) { step_towards(value, target, 0.03f); cross_zero = true; } } if (!cross_zero) { step_towards(&no_cro_step, 3.0f, 0.1f); step_towards(value, target, no_cro_step); }else { no_cro_step = 0.5f; } } /* MPTA, 弱磁, 功率限制,主要是分配DQ轴电流 */ #define CHANGE_MAX_CNT 3 static __INLINE void PMSM_FOC_VelCtrl_Decide(void) { #if 0 static int change_cnt = 0; static bool change_done = false; static u32 change_time = 0xFFFFFFFF; float f_te = F_get_Te(); float f_accl = F_get_accl(); if (mc_is_epm()) { change_cnt = 0; change_time = 0xFFFFFFFF; change_done = false; gFoc_Ctrl.out.empty_load = false; return; } if (gFoc_Ctrl.in.s_motVelocity == 0.0f || gFoc_Ctrl.out.n_RunMode == CTRL_MODE_OPEN) { change_cnt = 0; change_time = 0xFFFFFFFF; change_done = false; gFoc_Ctrl.out.empty_load = false; return; } if (f_te <= 0.0f) { change_cnt = 0; change_time = 0xFFFFFFFF; return; } if (change_done) { /* 误判空转,发现电机给定的N大于空气阻力,说明不是空转 */ if (gFoc_Ctrl.out.empty_load) { float f_air = F_get_air(); if ((f_accl > 1.0f) && (f_te >= (f_air + f_accl))) { change_cnt ++; }else { change_cnt = 0; } if (change_cnt >= 500) { gFoc_Ctrl.out.empty_load = false; #ifdef CONFIG_SPEED_LADRC PMSM_FOC_Change_TrqLoop_Params(nv_get_foc_params()->f_adrc_vel_lim_Wcv, nv_get_foc_params()->f_adrc_vel_lim_B0); PMSM_FOC_Change_VelLoop_Params(nv_get_foc_params()->f_adrc_vel_Wcv, nv_get_foc_params()->f_adrc_vel_B0); #endif } } return; } if (change_time == 0xFFFFFFFF) { change_time = get_tick_ms(); }else { //起步3s内检测是否空转 if (get_delta_ms(change_time) > 3000) { return; } } if ((f_accl > 200.0f) && (f_accl/f_te > 3.0f )) { change_cnt++; }else if ((F_get_MotAccl() >= 10.0f) && (f_accl/f_te > 1.2f )) { change_cnt = CHANGE_MAX_CNT; } else { if ((f_te > 50) && (f_accl > 0) && (f_te > f_accl)) { change_cnt --; }else { change_cnt = 0; } } if (!change_done && (change_cnt >= CHANGE_MAX_CNT)) { change_done = true; change_cnt = 0; gFoc_Ctrl.out.empty_load = change_done; #ifdef CONFIG_SPEED_LADRC PMSM_FOC_Change_TrqLoop_Params(CONFIG_LADRC_NOLOAD_Wcv, CONFIG_LADRC_NOLOAD_B0); PMSM_FOC_Change_VelLoop_Params(CONFIG_LADRC_NOLOAD_Wcv, CONFIG_LADRC_NOLOAD_B0); #endif }else if (!change_done && (change_cnt <= -200)) { change_done = true; change_cnt = 0; gFoc_Ctrl.out.empty_load = false; } #endif } static __INLINE float PMSM_FOC_Limit_iDC(float maxTrq) { #if 1 gFoc_Ctrl.pi_power.max = maxTrq; float errRef = eRamp_get_intepolation(&gFoc_Ctrl.rtLim.DCCurrLimRamp) - (gFoc_Ctrl.out.s_FilteriDC); return PI_Controller_Run(&gFoc_Ctrl.pi_power, errRef); #else return maxTrq; #endif } static __INLINE float PMSM_FOC_Limit_Speed(float maxTrq) { #ifdef CONFIG_SPEED_LADRC float lim = eRamp_get_intepolation(&gFoc_Ctrl.rtLim.rpmLimRamp); ladrc_set_range(&gFoc_Ctrl.vel_lim_adrc, 0, maxTrq); return ladrc_run(&gFoc_Ctrl.vel_lim_adrc, lim, gFoc_Ctrl.in.s_motVelocity); #else gFoc_Ctrl.pi_vel_lim.max = maxTrq; gFoc_Ctrl.pi_vel_lim.min = 0; float err = eRamp_get_intepolation(&gFoc_Ctrl.rtLim.rpmLimRamp) - gFoc_Ctrl.in.s_motVelocity; return PI_Controller_RunVel(&gFoc_Ctrl.pi_vel_lim, err); #endif } static __INLINE void PMSM_FOC_idq_Assign(void) { if (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_CURRENT) { if (gFoc_Ctrl.in.b_MTPA_calibrate && (gFoc_Ctrl.in.s_dqAngle != INVALID_ANGLE)) { float s, c; normal_sincosf(degree_2_pi(gFoc_Ctrl.in.s_dqAngle + 90.0f), &s, &c); gFoc_Ctrl.in.s_targetIdq.d = gFoc_Ctrl.in.s_targetCurrent * c; if (gFoc_Ctrl.in.s_targetIdq.d > gFoc_Ctrl.hwLim.s_FWDCurrMax) { gFoc_Ctrl.in.s_targetIdq.d = gFoc_Ctrl.hwLim.s_FWDCurrMax; }else if (gFoc_Ctrl.in.s_targetIdq.d < -gFoc_Ctrl.hwLim.s_FWDCurrMax) { gFoc_Ctrl.in.s_targetIdq.d = -gFoc_Ctrl.hwLim.s_FWDCurrMax; } gFoc_Ctrl.in.s_targetIdq.q = sqrtf(SQ(gFoc_Ctrl.in.s_targetCurrent) - SQ(gFoc_Ctrl.in.s_targetIdq.d)); if (s < 0) { gFoc_Ctrl.in.s_targetIdq.q = -gFoc_Ctrl.in.s_targetIdq.q; } }else { gFoc_Ctrl.in.s_targetIdq.d = 0; gFoc_Ctrl.in.s_targetIdq.q = gFoc_Ctrl.in.s_targetCurrent; } }else if ((gFoc_Ctrl.out.n_RunMode == CTRL_MODE_TRQ) || (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_SPD) || (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_EBRAKE)) { motor_mpta_fw_lookup(gFoc_Ctrl.in.s_motVelocity, gFoc_Ctrl.in.s_targetTorque, &gFoc_Ctrl.in.s_targetIdq); } u32 mask = cpu_enter_critical(); FOC_Set_iDqRamp(&gFoc_Ctrl.idq_ctl[0], gFoc_Ctrl.in.s_targetIdq.d); FOC_Set_iDqRamp(&gFoc_Ctrl.idq_ctl[1], gFoc_Ctrl.in.s_targetIdq.q); cpu_exit_critical(mask); } /*called in media task */ void PMSM_FOC_idqCalc(void) { if (gFoc_Ctrl.in.b_AutoHold) { gFoc_Ctrl.pi_lock.max = CONFIG_MAX_LOCK_TORQUE; gFoc_Ctrl.pi_lock.min = -CONFIG_MAX_LOCK_TORQUE; float vel_count = motor_encoder_get_vel_count(); float errRef = 0 - vel_count; gFoc_Ctrl.in.s_targetTorque = PI_Controller_Run(&gFoc_Ctrl.pi_lock ,errRef); PMSM_FOC_idq_Assign(); return; } if (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_CURRENT) { gFoc_Ctrl.in.s_targetCurrent = eCtrl_get_RefCurrent(); }else if (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_EBRAKE) { float maxTrq = eCtrl_get_RefTorque(); if (eCtrl_get_FinalTorque() < 0.0001f && gFoc_Ctrl.in.s_motVelocity < CONFIG_MIN_RPM_EXIT_EBRAKE) { maxTrq = 0; } crosszero_step_towards(&gFoc_Ctrl.in.s_targetTorque, maxTrq); }else if (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_TRQ) { float refTorque = min(eCtrl_get_RefTorque(), eRamp_get_intepolation(&gFoc_Ctrl.rtLim.torqueLimRamp)); float maxTrq = PMSM_FOC_Limit_Speed(refTorque); maxTrq = PMSM_FOC_Limit_iDC(maxTrq); crosszero_step_towards(&gFoc_Ctrl.in.s_targetTorque, maxTrq); }else if (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_SPD){ float maxSpeed = eCtrl_get_FinalSpeed(); float refSpeed = eCtrl_get_RefSpeed(); if (gFoc_Ctrl.in.b_cruiseEna) { maxSpeed = eRamp_get_target(&gFoc_Ctrl.in.cruiseRpmRamp); refSpeed = eRamp_get_intepolation(&gFoc_Ctrl.in.cruiseRpmRamp);//gFoc_Ctrl.in.s_cruiseRPM; } #ifdef CONFIG_SPEED_LADRC if (maxSpeed >= 0) { ladrc_set_range(&gFoc_Ctrl.vel_adrc, -CONFIG_MAX_NEG_TORQUE, eRamp_get_intepolation(&gFoc_Ctrl.rtLim.torqueLimRamp)); }else if (maxSpeed < 0) { ladrc_set_range(&gFoc_Ctrl.vel_adrc, -eRamp_get_intepolation(&gFoc_Ctrl.rtLim.torqueLimRamp), CONFIG_MAX_NEG_TORQUE); } if ((maxSpeed == 0) && (gFoc_Ctrl.in.s_motVelocity < CONFIG_MIN_RPM_EXIT_EBRAKE)) { ladrc_set_range(&gFoc_Ctrl.vel_adrc, 0, 0); } gFoc_Ctrl.in.s_targetRPM = refSpeed; float maxTrq = ladrc_run(&gFoc_Ctrl.vel_adrc, refSpeed, gFoc_Ctrl.in.s_motVelocity); #else if (maxSpeed >= 0) { gFoc_Ctrl.pi_vel.max = eRamp_get_intepolation(&gFoc_Ctrl.rtLim.torqueLimRamp); gFoc_Ctrl.pi_vel.min = -CONFIG_MAX_NEG_TORQUE; }else if (maxSpeed < 0) { gFoc_Ctrl.pi_vel.min = -eRamp_get_intepolation(&gFoc_Ctrl.rtLim.torqueLimRamp); gFoc_Ctrl.pi_vel.max = CONFIG_MAX_NEG_TORQUE; } if ((maxSpeed == 0) && (gFoc_Ctrl.in.s_motVelocity < CONFIG_MIN_RPM_EXIT_EBRAKE)) { gFoc_Ctrl.pi_vel.max = 0; gFoc_Ctrl.pi_vel.min = 0; //防止倒转 } gFoc_Ctrl.in.s_targetRPM = refSpeed; float errRef = refSpeed - gFoc_Ctrl.in.s_motVelocity; float maxTrq = PI_Controller_RunVel(&gFoc_Ctrl.pi_vel, errRef); #endif maxTrq = PMSM_FOC_Limit_iDC(maxTrq); crosszero_step_towards(&gFoc_Ctrl.in.s_targetTorque, maxTrq); } PMSM_FOC_idq_Assign(); } u8 PMSM_FOC_RunTime_Limit(void) { u8 changed = FOC_LIM_NO_CHANGE; float dc_lim = (float)vbus_under_vol_limit(); float torque_lim = (float)min(mos_temp_high_limit(), motor_temp_high_limit()); if (gFoc_Ctrl.protLim.s_iDCLim != dc_lim || gFoc_Ctrl.protLim.s_TorqueLim != torque_lim) { if ((dc_lim > gFoc_Ctrl.protLim.s_iDCLim) || (torque_lim > gFoc_Ctrl.protLim.s_TorqueLim)) { changed = FOC_LIM_CHANGE_H; }else { changed = FOC_LIM_CHANGE_L; } gFoc_Ctrl.protLim.s_iDCLim = dc_lim; gFoc_Ctrl.protLim.s_TorqueLim = torque_lim; } return changed; } bool PMSM_FOC_iDC_is_Limited(void) { return (gFoc_Ctrl.protLim.s_iDCLim != HW_LIMIT_NONE); } bool PMSM_FOC_Torque_is_Limited(void) { return (gFoc_Ctrl.protLim.s_TorqueLim != HW_LIMIT_NONE); } void PMSM_FOC_Slow_Task(void) { eRamp_running(&gFoc_Ctrl.rtLim.torqueLimRamp); eRamp_running(&gFoc_Ctrl.rtLim.DCCurrLimRamp); eRamp_running(&gFoc_Ctrl.rtLim.rpmLimRamp); eRamp_running(&gFoc_Ctrl.in.cruiseRpmRamp); PMSM_FOC_VelCtrl_Decide(); PMSM_FOC_idqCalc(); } void PMSM_FOC_Change_VelLoop_Params(float wcv, float b0) { #ifdef CONFIG_SPEED_LADRC ladrc_change_b0(&gFoc_Ctrl.vel_adrc, b0); ladrc_change_K(&gFoc_Ctrl.vel_adrc, wcv); #else PI_Controller_Change_Kpi(&gFoc_Ctrl.pi_vel, wcv, b0); #endif } void PMSM_FOC_Change_TrqLoop_Params(float wcv, float b0) { #ifdef CONFIG_SPEED_LADRC ladrc_change_b0(&gFoc_Ctrl.vel_lim_adrc, b0); ladrc_change_K(&gFoc_Ctrl.vel_lim_adrc, wcv); #else PI_Controller_Change_Kpi(&gFoc_Ctrl.pi_vel_lim, wcv, b0); #endif } float PMSM_FOC_Get_Real_dqVector(void) { if (gFoc_Ctrl.out.s_RealCurrentFiltered == 0) { gFoc_Ctrl.out.s_RealCurrentFiltered = sqrtf(SQ(gFoc_Ctrl.out.s_FilterIdq.d) + SQ(gFoc_Ctrl.out.s_FilterIdq.q)); } return gFoc_Ctrl.out.s_RealCurrentFiltered; } PMSM_FOC_Ctrl *PMSM_FOC_Get(void) { return &gFoc_Ctrl; } void PMSM_FOC_Start(u8 nCtrlMode) { if (gFoc_Ctrl.in.b_motEnable) { return; } PMSM_FOC_CoreInit(); eCtrl_Reset(); gFoc_Ctrl.in.n_ctlMode = nCtrlMode; gFoc_Ctrl.in.b_motEnable = true; } void PMSM_FOC_Stop(void) { if (!gFoc_Ctrl.in.b_motEnable) { return; } PMSM_FOC_CoreInit(); gFoc_Ctrl.in.b_motEnable = false; } bool PMSM_FOC_Is_Start(void) { return gFoc_Ctrl.in.b_motEnable; } void PMSM_FOC_DCCurrLimit(float ibusLimit) { if (ibusLimit > gFoc_Ctrl.hwLim.s_iDCMax) { ibusLimit = gFoc_Ctrl.hwLim.s_iDCMax; } if (gFoc_Ctrl.protLim.s_iDCLim != HW_LIMIT_NONE) { ibusLimit = min(ibusLimit, gFoc_Ctrl.protLim.s_iDCLim); } gFoc_Ctrl.userLim.s_iDCLim = ibusLimit; if (ABS(gFoc_Ctrl.in.s_motVelocity) <= CONFIG_ZERO_SPEED_RPM){ eRamp_reset_target(&gFoc_Ctrl.rtLim.DCCurrLimRamp, ibusLimit); }else { eRamp_set_step_target(&gFoc_Ctrl.rtLim.DCCurrLimRamp, ibusLimit, CONFIG_eCTRL_STEP_TS); } } float PMSM_FOC_GetDCCurrLimit(void) { return gFoc_Ctrl.userLim.s_iDCLim; } void PMSM_FOC_SpeedRampLimit(float speedLimit, float speed) { if (speedLimit > gFoc_Ctrl.hwLim.s_motRPMMax) { speedLimit = gFoc_Ctrl.hwLim.s_motRPMMax; } gFoc_Ctrl.userLim.s_motRPMLim = (speedLimit); if (ABS(speed) <= CONFIG_ZERO_SPEED_RPM) { eRamp_reset_target(&gFoc_Ctrl.rtLim.rpmLimRamp, speedLimit); }else { eRamp_set_step_target(&gFoc_Ctrl.rtLim.rpmLimRamp, speedLimit, CONFIG_eCTRL_STEP_TS); } } void PMSM_FOC_SpeedLimit(float speedLimit) { PMSM_FOC_SpeedRampLimit(speedLimit, gFoc_Ctrl.in.s_motVelocity); } void PMSM_FOC_SpeedDirectLimit(float limit) { PMSM_FOC_SpeedRampLimit(limit, 0); } float PMSM_FOC_GetSpeedLimit(void) { return gFoc_Ctrl.userLim.s_motRPMLim; } void PMSM_FOC_TorqueLimit(float torqueLimit) { if (torqueLimit > gFoc_Ctrl.hwLim.s_torqueMax) { torqueLimit = gFoc_Ctrl.hwLim.s_torqueMax; } if (gFoc_Ctrl.protLim.s_TorqueLim != HW_LIMIT_NONE) { torqueLimit = min(torqueLimit, gFoc_Ctrl.protLim.s_TorqueLim); } gFoc_Ctrl.userLim.s_torqueLim = torqueLimit; if (ABS(gFoc_Ctrl.in.s_motVelocity) <= CONFIG_ZERO_SPEED_RPM){ eRamp_reset_target(&gFoc_Ctrl.rtLim.torqueLimRamp, torqueLimit); }else { eRamp_set_step_target(&gFoc_Ctrl.rtLim.torqueLimRamp, torqueLimit, CONFIG_eCTRL_STEP_TS); } } float PMSM_FOC_GetTorqueLimit(void) { return gFoc_Ctrl.userLim.s_torqueLim; } void PMSM_FOC_SetEbrkTorque(s16 torque) { gFoc_Ctrl.userLim.s_TorqueBrkLim = (float)torque; //gFoc_Ctrl.userLim.s_iDCeBrkLim = fclamp(dc_curr, 0, nv_get_foc_params()->s_iDCeBrkLim); } float PMSM_FOC_GetEbrkTorque(void) { if (!foc_observer_is_encoder()) { return 0; //无感运行关闭能量回收 } return gFoc_Ctrl.userLim.s_TorqueBrkLim; } float PMSM_FOC_GetVbusVoltage(void) { return gFoc_Ctrl.in.s_vDC; } float PMSM_FOC_GetVbusCurrent(void) { return gFoc_Ctrl.out.s_FilteriDC; } DQ_t* PMSM_FOC_GetDQCurrent(void) { return &gFoc_Ctrl.out.s_RealIdq; } bool PMSM_FOC_SetCtrlMode(u8 mode) { if (mode > CTRL_MODE_EBRAKE) { PMSM_FOC_SetErrCode(FOC_Param_Err); return false; } gFoc_Ctrl.in.n_ctlMode = mode; return true; } u8 PMSM_FOC_GetCtrlMode(void) { return gFoc_Ctrl.in.n_ctlMode; } void PMSM_FOC_PhaseCurrLim(float lim) { if (lim > gFoc_Ctrl.hwLim.s_PhaseCurrMax) { lim = gFoc_Ctrl.hwLim.s_PhaseCurrMax; } gFoc_Ctrl.userLim.s_PhaseCurrLim = lim; } void PMSM_FOC_RT_PhaseCurrLim(float lim) { if (lim > gFoc_Ctrl.hwLim.s_PhaseCurrMax) { lim = gFoc_Ctrl.hwLim.s_PhaseCurrMax; } eRamp_init_target2(&gFoc_Ctrl.rtLim.torqueLimRamp, lim, CONFIG_LIMIT_RAMP_TIME); } float PMSM_FOC_GetPhaseCurrLim(void) { return gFoc_Ctrl.userLim.s_PhaseCurrLim; } void PMSM_FOC_SetOpenVdq(float vd, float vq) { FOC_Set_vDqRamp(&gFoc_Ctrl.vdq_ctl[0], vd); FOC_Set_vDqRamp(&gFoc_Ctrl.vdq_ctl[1], vq); } void PMSM_FOC_SetOpenVdq_Immediate(float vd, float vq) { gFoc_Ctrl.vdq_ctl[0].s_Step = 0; gFoc_Ctrl.vdq_ctl[0].s_FinalTgt = vd; gFoc_Ctrl.vdq_ctl[0].s_Cp = vd; gFoc_Ctrl.vdq_ctl[1].s_Step = 0; gFoc_Ctrl.vdq_ctl[1].s_FinalTgt = vq; gFoc_Ctrl.vdq_ctl[1].s_Cp = vq; } bool PMSM_FOC_EnableCruise(bool enable) { if (enable != gFoc_Ctrl.in.b_cruiseEna) { float motSpd = PMSM_FOC_GetSpeed(); if (enable && (motSpd < CONFIG_MIN_CRUISE_RPM)) { // PMSM_FOC_SetErrCode(FOC_NowAllowed_With_Speed); return false; } eRamp_reset_target(&gFoc_Ctrl.in.cruiseRpmRamp, motSpd); gFoc_Ctrl.in.s_cruiseRPM = motSpd; gFoc_Ctrl.in.b_cruiseEna = enable; } return true; } bool PMSM_FOC_PauseCruise(void) { gFoc_Ctrl.in.b_cruiseEna = false; return true; } bool PMSM_FOC_ResumeCruise(void) { gFoc_Ctrl.in.b_cruiseEna = true; eRamp_init_target2(&gFoc_Ctrl.in.cruiseRpmRamp, PMSM_FOC_GetSpeed(), CONFIG_CRUISE_RAMP_TIME); eRamp_set_step_target(&gFoc_Ctrl.in.cruiseRpmRamp, gFoc_Ctrl.in.s_cruiseRPM, CONFIG_eCTRL_STEP_TS); return true; } bool PMSM_FOC_Is_CruiseEnabled(void) { return (gFoc_Ctrl.in.b_cruiseEna && (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_SPD)); } bool PMSM_FOC_Set_Speed(float rpm) { if (gFoc_Ctrl.in.b_cruiseEna) { return false; } eCtrl_set_TgtSpeed(min(ABS(rpm), gFoc_Ctrl.userLim.s_motRPMLim)*SIGN(rpm)); return true; } bool PMSM_FOC_Set_Current(float is) { if (is > gFoc_Ctrl.userLim.s_PhaseCurrLim) { is = gFoc_Ctrl.userLim.s_PhaseCurrLim; }else if (is < -gFoc_Ctrl.userLim.s_PhaseCurrLim) { is = -gFoc_Ctrl.userLim.s_PhaseCurrLim; } eCtrl_set_TgtCurrent(is); return true; } bool PMSM_FOC_Set_Torque(float trq) { if (trq > gFoc_Ctrl.userLim.s_torqueLim) { trq = gFoc_Ctrl.userLim.s_torqueLim; }else if (trq < -gFoc_Ctrl.userLim.s_torqueLim) { trq = -gFoc_Ctrl.userLim.s_torqueLim; } eCtrl_set_TgtTorque(trq); return true; } void PMSM_FOC_Reset_Torque(void) { float real_trq = PMSM_FOC_Get_Real_dqVector(); eCtrl_reset_Torque(real_trq); } bool PMSM_FOC_Set_CruiseSpeed(float rpm) { if (PMSM_FOC_Is_CruiseEnabled()) { if (rpm < CONFIG_MIN_CRUISE_RPM) { rpm = CONFIG_MIN_CRUISE_RPM; } gFoc_Ctrl.in.s_cruiseRPM = min(ABS(rpm), gFoc_Ctrl.userLim.s_motRPMLim)*SIGN(rpm); eRamp_set_step_target(&gFoc_Ctrl.in.cruiseRpmRamp, gFoc_Ctrl.in.s_cruiseRPM, CONFIG_eCTRL_STEP_TS); return true; } PMSM_FOC_SetErrCode(FOC_NotCruiseMode); return false; } void PMSM_FOC_MTPA_Calibrate(bool enable) { if (enable) { gFoc_Ctrl.in.b_MTPA_calibrate = true; gFoc_Ctrl.in.s_dqAngle = 0; }else { gFoc_Ctrl.in.s_dqAngle = INVALID_ANGLE; gFoc_Ctrl.in.b_MTPA_calibrate = false; } } void PMSM_FOC_Set_MotAngle(float angle) { gFoc_Ctrl.in.s_manualAngle = (angle); } void PMSM_FOC_Set_Dq_Angle(float angle) { gFoc_Ctrl.in.s_dqAngle = (angle); } void PMSM_FOC_Get_TgtIDQ(DQ_t * dq) { dq->d = gFoc_Ctrl.in.s_targetIdq.d; dq->q = gFoc_Ctrl.in.s_targetIdq.q; } float PMSM_FOC_GetSpeed(void) { float speed = gFoc_Ctrl.in.s_motVelocity; if (!gFoc_Ctrl.in.b_motEnable || foc_observer_is_encoder()) { speed = motor_encoder_get_speed(); }else { if (foc_observer_sensorless_stable()) { speed = foc_observer_sensorless_speed(); }else { speed = 0; } } return speed; } void PMSM_FOC_AutoHold(bool lock) { if (gFoc_Ctrl.in.b_AutoHold != lock) { motor_encoder_lock_pos(lock); PI_Controller_Reset(&gFoc_Ctrl.pi_lock, 0); if (!lock) { float hold_torque = gFoc_Ctrl.in.s_targetTorque * 1.1f; if (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_TRQ) { #ifdef CONFIG_SPEED_LADRC ladrc_reset(&gFoc_Ctrl.vel_lim_adrc, 0, hold_torque); #else PI_Controller_Reset(&gFoc_Ctrl.pi_vel_lim, hold_torque); #endif }else if (gFoc_Ctrl.out.n_RunMode == CTRL_MODE_SPD) { #ifdef CONFIG_SPEED_LADRC ladrc_reset(&gFoc_Ctrl.vel_adrc, 0, hold_torque); #else PI_Controller_Reset(&gFoc_Ctrl.pi_vel, hold_torque); #endif } eCtrl_reset_Torque(hold_torque); gFoc_Ctrl.out.f_autohold_trq = hold_torque; }else { gFoc_Ctrl.out.f_autohold_trq = 0; } gFoc_Ctrl.in.b_AutoHold = lock; } } bool PMSM_FOC_AutoHoldding(void) { return gFoc_Ctrl.in.b_AutoHold; } static PI_Controller *_pid(u8 id) { PI_Controller *pi = NULL; if (id == PID_D_id) { pi = &gFoc_Ctrl.pi_id; }else if (id == PID_Q_id) { pi = &gFoc_Ctrl.pi_iq; }else if (id == PID_TRQ_id) { #ifndef CONFIG_SPEED_LADRC pi = &gFoc_Ctrl.pi_vel_lim; #endif }else if (id == PID_Spd_id) { #ifndef CONFIG_SPEED_LADRC pi = &gFoc_Ctrl.pi_vel; #endif }else if (id == PID_Lock_id) { pi = &gFoc_Ctrl.pi_lock; } return pi; } void PMSM_FOC_SetPid(u8 id, float kp, float ki, float kd) { if (id > PID_Max_id) { return; } PI_Controller *pi = _pid(id); if (pi != NULL) { pi->kp = kp; pi->ki = ki; pi->kd = kd; } } void PMSM_FOC_GetPid(u8 id, float *kp, float *ki, float *kd) { if (id > PID_Max_id) { return; } PI_Controller *pi = _pid(id); if (pi != NULL) { *kp = pi->kp; *ki = pi->ki; *kd = pi->kd; } } void PMSM_FOC_SetErrCode(u8 error) { if (gFoc_Ctrl.out.n_Error != error) { gFoc_Ctrl.out.n_Error = error; } } u8 PMSM_FOC_GetErrCode(void) { return gFoc_Ctrl.out.n_Error; } void PMSM_FOC_Set_PlotType(Plot_t t) { gFoc_Ctrl.plot_type = t; } //获取母线电流和实际输出电流矢量大小 void PMSM_FOC_Calc_Current(void) { float vd = gFoc_Ctrl.out.s_OutVdq.d + gFoc_Ctrl.out.s_OutVdqDTC.d * 0.667f; float vq = gFoc_Ctrl.out.s_OutVdq.q + gFoc_Ctrl.out.s_OutVdqDTC.q * 0.667f; float id = gFoc_Ctrl.out.s_FilterIdq.d; float iq = gFoc_Ctrl.out.s_FilterIdq.q; /* 根据公式(等幅值变换,功率不等): iDC x vDC = 2/3(iq x vq + id x vd); */ float m_pow = (vd * id + vq * iq); //s32q10 float raw_idc = 0.0f; float v_dc = get_vbus_float(); if (v_dc != 0.0f) { raw_idc = m_pow / v_dc;// * 1.5f * 0.66f; //s16q5 } LowPass_Filter(gFoc_Ctrl.out.s_CalciDC, raw_idc, 0.02f); #ifdef VBUS_I_CHAN raw_idc = get_vbus_current(); LowPass_Filter(gFoc_Ctrl.out.s_FilteriDC, raw_idc, 0.05f); #else gFoc_Ctrl.out.s_FilteriDC = gFoc_Ctrl.out.s_CalciDC; #endif gFoc_Ctrl.out.s_RealCurrentFiltered = sqrtf(SQ(gFoc_Ctrl.out.s_FilterIdq.d) + SQ(gFoc_Ctrl.out.s_FilterIdq.q)); } void PMSM_FOC_Brake(bool brake) { gFoc_Ctrl.in.b_eBrake = brake; if (gFoc_Ctrl.in.b_eBrake & gFoc_Ctrl.in.b_cruiseEna) { gFoc_Ctrl.in.b_cruiseEna = false; } eCtrl_brake_signal(brake); }