基于DSP2812控制的单相光伏逆变器程序代码

/ TMDX ALPHA RELEASE/ Intended for product evaluation purposes/#/ FILE:DSP28_Example.c/ TITLE:DSP28 CPU_Timer example program./#/ Ver | dd mmm yyyy | Who | Description of changes/ =|=|=|=/ 0.55| 06 May 2002 | S.S. | EzDSP Alpha Release/ 0.57| 27 May 2002 | L.H. | No change/#/ Step 0. Include required header files / DSP28_Device.h: device specific definitions #include statements for / all of the peripheral .h definition files. / DSP28_Example.h is specific for the given example. #include DSP28_Device.h#include IQmathLib.h#pragma DATA_SECTION(sine_table,IQmathTables);_iq30 sine_table512;#define PI 3.14interrupt void eva_T1UFINT_ISR(void);interrupt void CAP_INT3_ISR(void);interrupt void ADC_FIR_INT_ISR(void);/ ADC 服务中断Uint16 ConversionCount = 0;Uint16 SS = 0;Uint16 n = 0;Uint16 SIN = 0;Uint16 SIN1 = 0;Uint16 SIN2 = 0;_iq30 sine_table512; /jiayujintshort int AData512=0;short int AData1512=0;extern _iq IQssfir(_iq*, _iq*, Uint16); #define N5/ 滤波器长度_iq xDelayN = 0, 0, 0, 0, 0;_iq xDelay1N = 0, 0, 0, 0, 0;/ filter coefficients_iq coeffsN = 100*_IQ(0.0625),100* _IQ(0.25), 100*_IQ(0.375), 100*_IQ(0.25), _IQ(0.0625);#define AdcFsVoltage_IQ(3.0)/ ADC 满量程电压#define AdcBufLen512/ ADC 结果缓冲长度_iq AdcBufAdcBufLen; / ADC 结果缓冲_iq AdcBuf1AdcBufLen;_iq AdcBufFilteredAdcBufLen; / 滤波后电流的ADC结果缓冲_iq AdcBufFiltered1AdcBufLen; / 滤波后电压的ADC结果缓冲_iq vfAdcBufLen; / 滤波后电流的ADC结果缓冲_iq IfAdcBufLen; / 滤波后电压的ADC结果缓冲_iq IgAdcBufLen; _iq vrefAdcBufLen; /需要转换iq格式 已经转化到调整环内的IQ格式_iq evAdcBufLen;_iq eiAdcBufLen;_iq VsAdcBufLen;float M;float Imax=_IQ(4100); float Vmax=_IQ(4090); /对程序中用到的常数值进行宏定义赋值 /pi参数 iq格式float kp=_IQ(1);float ki=_IQ(0.2);float kip=_IQ(10);void main(void)/*初始化系统*/InitSysCtrl();/*关中断*/DINT;IER = 0x0000;IFR = 0x0000;/*初始化PIE控制寄存器*/InitPieCtrl();/*初始化PIE矢量表*/InitPieVectTable();/*初始GPIO*/InitGpio(); InitAdc(); / 初始化ADCEALLOW; PieVectTable.CAPINT3 = &CAP_INT3_ISR; PieVectTable.ADCINT = &ADC_FIR_INT_ISR;PieVectTable.T1UFINT=&eva_T1UFINT_ISR;EDIS;PieCtrl.PIEIER1.bit.INTx6 = 1; /开AD中断PieCtrl.PIEIER2.bit.INTx6 = 1; /开下益中断 PieCtrl.PIEIER3.bit.INTx7 = 1; /开CAP中断IER |= 0x0007 ;EINT; /使能全局中断INTMERTM; /使能全局实时中断DBGM/*初始化EV*/InitEv();while(AdcRegs.ADC_ST_FLAG.bit.SEQ1_BSY=0)AdcRegs.ADCTRL2.bit.SOC_SEQ1=1;for(;)KickDog(); interrupt void eva_T1UFINT_ISR(void) /查表方式（固化正弦表）/EvaRegs.CMPR1 = EvaRegs.T1PR-_IQsat(_IQ30mpy(sine_tableindex+_IQ30(0.9999),EvaRegs.T1PR/2),EvaRegs.T1PR,0);/计算得出新的正弦表SIN = _IQsat(_IQ30mpy(sine_tableSS+_IQ30(0.9999),EvaRegs.T1PR/2),EvaRegs.T1PR,0);SIN2 = _IQsat(_IQ30mpy(-sine_tableSS+_IQ30(0.9999),EvaRegs.T1PR/2),EvaRegs.T1PR,0);SS+;if(SS = 512)SS = 0;/EvaRegs.CMPR1 = INPUTSS ;EvaRegs.CMPR1 = SIN ;EvaRegs.CMPR2 = SIN2;EvaRegs.EVAIFRA.bit.T1UFINT = 1; /复位定时器1下溢中断标志PieCtrl.PIEACK.all = PIEACK_GROUP2;/响应该中断并允许从组2中接受更多的中断 interrupt void CAP_INT3_ISR(void) /定义cap中断 SS=0; /指针复位 EvaRegs.EVAIFRC.bit.CAP3INT=1; PieCtrl.PIEACK.all = PIEACK_GROUP3;interrupt void ADC_FIR_INT_ISR(void) / ADC static Uint16 ibuf=0; PieCtrl.PIEACK.all = PIEACK_GROUP1;/* Manage the ADC registers */AdcRegs.ADCTRL2.bit.RST_SEQ1 = 1;/ 复位SEQ1到CONV00状态AdcRegs.ADC_ST_FLAG.bit.INT_SEQ1_CLR=1;/ 清楚ADC SEQ1中断标志/*读取ADC结果：1) 将无符号16-bit结果转换成32-bit IQ16格式2) 将IQ16格式转换为IQ格式3) 根据ADC满量程定标*/ ADataibuf=AdcRegs.RESULT04; /采样电压值 AData1ibuf=AdcRegs.RESULT14; /采样电流值 AdcBufibuf = _IQmpy(AdcFsVoltage, _IQ16toIQ( (_iq)AdcRegs.RESULT0); AdcBuf1ibuf = _IQmpy(AdcFsVoltage, _IQ16toIQ( (_iq)AdcRegs.RESULT1);xDelay0 = AdcBufibuf;AdcBufFilteredibuf = IQssfir(xDelay, coeffs, N);xDelay10 = AdcBuf1ibuf;AdcBufFiltered1ibuf = IQssfir(xDelay1, coeffs, N);vfibuf =AdcBufFilteredibuf; /采样电压值 Igibuf =AdcBufFiltered1ibuf; /采样电流值 / 电 压 电 流 双 闭 环 函 数SIN1 = _IQsat(_IQ30mpy(sine_tableibuf+_IQ30(0.9999),2047),4095,0);vrefibuf=SIN1;evibuf = vrefibuf- vfibuf ;if (ibuf=0)Igibuf=kp*evibuf+ki*evibuf ; if (Igibuf=Imax) /电压环限幅 考虑输出Ig正负Igibuf=Imax;else if (Igibuf=Vmax) /电流环限幅Vsibuf=Vmax;else if (Vsibuf=Imax) /电压环限幅 考虑输出Ig正负Igibuf=Imax;else if (Igibuf=Vmax)Vsibuf=Vmax;else if (Vsibuf=0)M=Vsibuf/4096; elseM=-Vsibuf/4096; /考虑一下Vsk的正负值 确保M是0-1的值 ibuf +=4;if(ibuf = AdcBufLen) ibuf = 0; /函数结束 返回调制度M_iq IQssfir(_iq *x, _iq *a, Uint16 n) Uint16 i; / general purpose _iq y; / result _iq *xold; / delay line pointer /* Setup the pointers */ a = a + (n-1); / a points to last coefficient x = x + (n-1); / x points to last buffer element xold = x; / xold points to last buffer element /* Last tap has no delay line update */ y = _IQmpy(*a-, *x-); /* Do the other taps from end to beginning */ for(i=0; i n-1; i+) y = y + _IQmpy(*a-, *x);