DSP

TMS320F28335_SVPWM完整程序

2019-07-13 11:12发布

站内文章 / DSP
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1、主函数 /*===============头文件================*/ #include "DSP2833x_Project.h" #include "C28x_FPU_FastRTS.h" #include //将用户定义的头文件包含进来 #include "SVPWM_2L.h" int i; SVPWM_2L Svpwm = SVPWM_2L_DEFAULTS; float alpha[60]={200.0000, 198.8670, 195.4807, 189.8795, 182.1270, 172.3108, 160.5423, 146.9548, 131.7023, 114.9575, 96.9102, 77.7648, 57.7384, 37.0577, 15.9572, -5.3241, -26.5451, -47.4653, -67.8478, -87.4615, -106.0842, -123.5049, -139.5263, -153.9668, -166.6628, -177.4704, -186.2672, -192.9536, -197.4537, -199.7165, -199.7165, -197.4537, -192.9536, -186.2672, -177.4704, -166.6628, -153.9668, -139.5263, -123.5049, -106.0842, -87.4615, -67.8478, -47.4653, -26.5451, -5.3241, 15.9572, 37.0577, 57.7384, 77.7648, 96.9102, 114.9575, 131.7023, 146.9548, 160.5423, 172.3108, 182.1270, 189.8795, 195.4807, 198.8670, 200.0000}; float beta[60]={0.0000, 21.2587, 42.2765, 62.8153, 82.6424, 101.5332, 119.2735, 135.6624, 150.5142, 163.6606, 174.9526, 184.2624, 191.4844, 196.5368, 199.3624, 199.9291, 198.2306, 194.2860, 188.1401, 179.8624, 169.5469, 157.3103, 143.2913, 127.6488, 110.5600, 92.2185, 72.8321, 52.6205, 31.8127, 10.6444, -10.6444, -31.8127, -52.6205, -72.8321, -92.2185, -110.5600, -127.6488, -143.2913, -157.3103, -169.5469, -179.8624, -188.1401, -194.2860, -198.2306, -199.9291, -199.3624, -196.5368, -191.4844, -184.2624, -174.9526, -163.6606, -150.5142, -135.6624, -119.2735, -101.5332, -82.6424, -62.8153, -42.2765, -21.2587, -0.0000}; /* ===============函数声明================*/ void Dlog_init(void); //Dlog初始化函数 /*=================主程序================*/ void main() { InitSysCtrl(); //系统初始化 DINT;//关闭全局中断 InitPieCtrl();//初始化中断控制寄存器 IER = 0x0000;//关闭CPU中断 IFR = 0x0000;//清除CPU中断信号 InitPieVectTable();//初始化中断向量表 EINT; //开CPU中断 ERTM; while(1) { //----两电平逆变器的控制----------------------------------------------------------- //两电平SVPWM算法 for (i=0;i<60;i++) { Svpwm.Ualpha = alpha[i]; Svpwm.Ubeta = beta[i]; Svpwm.Vdc = 300; Svpwm.calc(&Svpwm); if(i==60) {i=0;} } } } //============================================================== //End of file. //============================================================== 2、svpwm.c /*===============SVPWM_2L.c================*/ #include "DSP2833x_Project.h" #include "C28x_FPU_FastRTS.h" #include <math.h> #include "SVPWM_2L.h" //======== Definations for functions =========================== //********************************** /* @ Description: @ Param @ Return */ //********************************** void svpwm_2l_calc(SVPWM_2L *p) { float temp; float X,Y,Z, t1,t2; Uint16 A,B,C,N,Sector; float Ta, Tb, Tc; float K=1.73205081;//sqrt(3) p->T=1.0;//将整个调制周期归一化处理 X= K*p->Ubeta/p->Vdc*p->T; Y=(K*p->Ubeta+3*p->Ualpha)/(2*p->Vdc)*p->T; Z=(K*p->Ubeta-3*p->Ualpha)/(2*p->Vdc)*p->T; // if(p->Ubeta>0) {A=1;} else {A=0;} if( (K*p->Ualpha - p->Ubeta)>0 ) {B=1;} else {B=0;} if((-K*p->Ualpha - p->Ubeta)>0) {C=1;} else {C=0;} N=A+2*B+4*C; // switch(N) { case 1:{Sector=2;break;} case 2:{Sector=6;break;} case 3:{Sector=1;break;} case 4:{Sector=4;break;} case 5:{Sector=3;break;} case 6:{Sector=5;break;} default:{;} } // switch(Sector) { case 1: {t1=-Z; t2= X;break;} case 2: {t1= Z; t2= Y;break;} case 3: {t1= X; t2=-Y;break;} case 4: {t1=-X; t2= Z;break;} case 5: {t1=-Y; t2=-Z;break;} case 6: {t1= Y; t2=-X;break;} default:{;} } if((t1+t2)>p->T)//对过调制情况进行调整 { temp=t1+t2; t1=t1*p->T/temp; t2=t2*p->T/temp; } // Ta=(p->T-t1-t2)/4;//作用时间分配 Tb=Ta+t1/2; Tc=Tb+t2/2; switch(Sector) { case 1: {p->Tcmpa=Ta; p->Tcmpb=Tb; p->Tcmpc=Tc; break;} case 2: {p->Tcmpa=Tb; p->Tcmpb=Ta; p->Tcmpc=Tc; break;} case 3: {p->Tcmpa=Tc; p->Tcmpb=Ta; p->Tcmpc=Tb; break;} case 4: {p->Tcmpa=Tc; p->Tcmpb=Tb; p->Tcmpc=Ta; break;} case 5: {p->Tcmpa=Tb; p->Tcmpb=Tc; p->Tcmpc=Ta; break;} case 6: {p->Tcmpa=Ta; p->Tcmpb=Tc; p->Tcmpc=Tb; break;} default:{;} } } //============================================================== //End of file. //============================================================== 3、svpwm.h /*===============SVPWM_2L.h================*/ #ifndef SVPWM_2L_H #define SVPWM_2L_H #include "C28x_FPU_FastRTS.h" //----------------------------------------------------------------------------- // Define the structure of the POSSPEED Object //----------------------------------------------------------------------------- typedef struct { float Ualpha; // Input: reference alpha-axis phase voltage float Ubeta; // Input: reference beta-axis phase voltage float Vdc; // Input: DC voltage float T; // Input: PWM Modulation Period float Tcmpa; // Output: reference phase-a switching function float Tcmpb; // Output: reference phase-b switching function float Tcmpc; // Output: reference phase-c switching function void (*calc)(); // Pointer to calculation function } SVPWM_2L; //----------------------------------------------------------------------------- // Define a POSSPEED_handle //----------------------------------------------------------------------------- typedef SVPWM_2L *SVPWM_2L_handle; //----------------------------------------------------------------------------- // Default initializer for the POSSPEED Object. //----------------------------------------------------------------------------- #define SVPWM_2L_DEFAULTS {0,0,0,1.0, 1,1,1, (void (*)(Uint32))svpwm_2l_calc} //----------------------------------------------------------------------------- // Prototypes for the functions in posspeed.c //----------------------------------------------------------------------------- void svpwm_2l_calc(SVPWM_2L_handle); #endif //============================================================== //End of file. //==============================================================

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