MC100/Applications/foc/core/PI_Controller.h

#ifndef _PI_Contrller_H__
#define _PI_Contrller_H__
#include "math/fix_math.h"
#include "bsp/bsp.h"
typedef struct {
	s16q5_t  kp;
	s16q5_t  ki;
	s16q5_t  max;
	s16q5_t  min;
	s16q5_t  Ui;
	s16q14_t DT;
}PI_Controller;

static __INLINE void PI_Controller_Reset(PI_Controller *pi, s16q5_t init) {
	pi->Ui = init;
}

static __INLINE s16q5_t PI_Controller_run(PI_Controller *pi, s16q5_t err) {
	s16q5_t kp_err = S16_mul(err,pi->kp, 5);
	s16q5_t ki_err = S16_mul(err,pi->ki, 5);
	s16q5_t integral = S16_mul(ki_err, pi->DT, 14);
	pi->Ui = MATH_sat(pi->Ui + integral, pi->min, pi->max);
	s32q14_t out = pi->Ui + kp_err;
	return MATH_sat(out, pi->min, pi->max);
}

#endif	/*_PI_Contrller_H__*/