buckboost.rar_PWM Boost _boost PID_boost电路闭环_boost闭环_buckboost 闭

#include<STC12C5A60S2.h> #include "intrins.h" #include <string.h> #include <stdio.h> /*#include "define.h" #include "delay.h" #include "lcd.h" #include "ad.h" #include "pid.h" #include "pwm.h" */ /*……………………………………………… define.h…………………………….*/ #define uint unsigned int #define uchar unsigned char #define N 14 sbit pwmout=P3^7; sbit lcden=P2^6; sbit lcdrs=P2^4; sbit lcdrw=P2^5; //uchar a; uchar code table[]="The Vol is:.V "; /*…………………………………………..delay.h……………………………….*/ void delay(uint z) //12M晶振 毫秒级延时 { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } /*…………………………………………lcd 1602显示……………………………………*/ void write_com(uchar com) //写控制字 { lcdrs=0; delay(5); P0=com; delay(5); lcden=1; delay(5); lcden=0; } void write_data(uchar date) //写数据 { lcdrs=1; delay(5); P0=date; delay(5); lcden=1; delay(5); lcden=0; } void lcdinit() //lcd初始化 { lcden=0; lcdrw=0; write_com(0x38); write_com(0x01); write_com(0x0e); write_com(0x06); } void display(uchar add,uint num) { /*uchar i; write_com(0x80); for(i=0;i<11;i++) //显示字符 { write_data(table[i]); delay(1); } write_com(0x80+0x40); //显示电压数据 if(num/10000==0) { write_data(table[13]); } else write_data(0x30+num/10000); write_data(0x30+num%10000/1000); write_data(table[11]); write_data(0x30+num%1000/100); write_data(0x30+num%100/10); write_data(0x30+num%10); write_data(table[12]);*/ if(add==1) { write_com(0x80); write_data(0x30+num/10000); write_data(0x30+num%10000/1000); write_data(0x30+num%1000/100); write_data(0x30+num%100/10); write_data(0x30+num%10); } if(add==3) { write_com(0x80+0x07); write_data(0x30+num/10000); write_data(0x30+num%10000/1000); write_data(0x30+num%1000/100); write_data(0x30+num%100/10); write_data(0x30+num%10); } if(add==2) { write_com(0x80+0x40); write_data(0x30+num/10000); write_data(0x30+num%10000/1000); write_data(0x30+num%1000/100); write_data(0x30+num%100/10); write_data(0x30+num%10); } if(add==4) { write_com(0x80+0x40+0x06); write_data(0x30+num/10000); write_data(0x30+num%10000/1000); write_data(0x30+num%1000/100); write_data(0x30+num%100/10); write_data(0x30+num%10); } if(add==5) { write_com(0x80+0x40+0x0b); write_data(0x30+num/10000); write_data(0x30+num%10000/1000); write_data(0x30+num%1000/100); write_data(0x30+num%100/10); write_data(0x30+num%10); } } /*…………………………………..A/D程序…………………………………….*/ void AD_init() //AD转化初始化 { P1ASF=0x01; P1M0=0x03; P1M1=0x03; //P1.0为开漏模式，用来A/D采集 ADC_CONTR=0xe0; delay(10); } int GetAD(uchar channel) { uchar AD_finished=0; int result; ADC_RES=0; ADC_RESL=0; ADC_CONTR|=channel; delay(1); //此延时函数很重要 ADC_CONTR|=0x88;//启动AD _nop_(); _nop_(); _nop_(); _nop_(); while(AD_finished==0) { AD_finished=(ADC_CONTR&0x10); //flag=1,AD转换完成。 } result=ADC_RES*4+ADC_RESL; ADC_CONTR&=0xe7; return(result); } float AD_av(uchar channel) { float Val_av=0; uchar num; for(num=100;num>0;num--) //多次采样取平均值 { Val_av+=GetAD(channel); } Val_av/=100; Val_av=Val_av*4.90/1024.0; return(Val_av); } /*float ad_ filter(uchar channel) //防脉冲干扰滤波 { uchar count,i,j; uint value_buf[N]; //缓冲N个采样值的存储变量 uint sum=0; uint temp; float f_result; for(count=0;count<N;count++) { value_buf[count]=GetAD(channel); _nop_(); } for(j=0;j<N-1;j++) { for(i=0;i<N-j;i++) { if(value_buf[i]>value_buf[i+1]) { temp=value_buf[i]; value_buf[i]=value_buf[i+1]; value_buf[i+1]=temp; } } } for(count=1;count<N-1;count++) //去掉一个最大值和一个最小值 { sum+=value_buf[count]; } f_result=sum/(N-2); f_result=f_result*5/1024; //参考电压为5V return(f_result); } */ /*………………………………………………pwm模块……………………….*/ void pwm_init() { AUXR=0x80; //T0定时器设置为1T模式 T2工作在12T模式 CMOD=0x05; //定时器0的溢出,可以实现可调频率的PWM输出 CL=0x00; CH=0x00; TMOD=0x02; //定时器1工作在方式二 TH0=0xfd; TL0=0xfd; TR0=1; //定时器0开始定时 } void PCA_Interrupt(void) interrupt 7 //PCA定时器中断 { if(CCF0) CCF0=0; if(CCF1) CCF1=0; //软件清零 if(CF) CF=0; //软件清零 } typedef struct PID { double SetPoint; // 设定目标 Desired Value double Proportion; // 比例常数 Proportional Const double Integral; // 积分常数 Integral Const double Derivative; // 微分常数 Derivative Const double LastError; // Error[-1] double PrevError; // Error[-2] double PrePrevError; // Error[-3] double SumError; // Sums of Errors } PID; struct PID SPID; /*=======================初始化的PID结构 ===========================*/ void PID_init (PID *pp) { memset ( pp,0,sizeof(PID)); } /*========================PID计算部分===============================*/ /*double PIDCalc( PID *pp, double NextPoint ) //采用增量式PID算法 { double pError,dError,Error; Error = pp->SetPoint - NextPoint; // 偏差 pError= pp->LastError - pp->PrevError; dError = pp->LastError - 2*pp->PrevError + pp->PrePrevError; // 当前微分 pp->PrePrevError=pp->PrevError; pp->PrevError = pp->LastError; pp->LastError = Error; return (pp->Proportion *pError // 比例项 + pp->Integral * Error // 积分项 + pp->Derivative * dError // 微分项 ); } */ double PIDCalc( PID *pp, double NextPoint ) { double dError, Error; Error = pp->SetPoint - NextPoint; // 偏差 pp->SumError += Error; // 积分 dError = pp->LastError - pp->PrevError; // 当前微分 pp->PrevError = pp->LastError; pp->LastError = Error; return (pp->Proportion * Error // 比例项 + pp->Integral * pp->SumError // 积分项 + pp->Derivative * dError // 微分项 ); } /*-------------------------主函数----------------------------------------------------------*/ void main() { float ad1,ad2; int Rout; // PID响应（输出） PID Response (Output) float Rin,Vin; uint a1,a2,Ve,Ve_buck,Ve_boost; lcdinit(); AD_init(); pwm_init(); // PID控制结构 PID Control Structure PID_init ( &SPID ); // 初始化结构Initialize Structure SPID.Proportion = 10; // 设置PID系数 SPID.Integral = 6.5; SPID.Derivative = 0.8; SPID.SetPoint = 1.82; // 设置PID设定值 Set PID Setpoint CCAPM0=0x42;