pi.c

DSP2812的直流斩波调速程序

#include "DSP28_Device.h"     // DSP281x Headerfile Include
#define U_max  36//修改 原来为1250
#define U_min  5

#define I_max  2
#define I_min  1

#define K0  1
#define K1  0.1
#define K2  1
#define K3  0.05

float M=0.5;//+0.03*K4

Uint16 Vr=36;
float Vd=0;
float  Uam1;
float Uam0=36;
float Ena1=0.0;
float Ena0=0.0;

float Ir=2;
float  Id;
float  Iam1;
float  Iam0;
float IEna1=0.0;
float IEna0=0.0;

void Vd_pi(void)
{

Ena1=Vr-Vd;
Uam1=Uam0+K2*Ena0+K3*Ena1;
if(Uam1>=U_max)
{
  Uam1=U_max;
}
else

{
if(Uam1<=U_min)Uam1=U_min;
}
Ena0=Ena1;
Uam0=Uam1;
}


void Id_pi(void)
{
IEna1=Uam1-Id;
Iam1=Iam0+K0*IEna0+K1*IEna1;
if(Iam1>=I_max)
{
  Iam1=I_max;
}
else

{
if(Iam1<=I_min)Iam1=I_min;
}

EvaRegs.CMPR1=(int)(M*7500*Iam1/Ir);

IEna0=IEna1;
Iam0=Iam1;

}