双路DC-DC 电流成比例 STM32程序

ID:574739 · 发表于 2019-6-29 20:05

类似15年国赛电源题目，两路DC-DC电压控制，电流成比例

单片机源程序如下:

#include "stm32f10x.h"
#include "BSP_Config.H"
#include "oled.h"
#include "pwm_output.h"
#include "adc.h"
#include "stdio.h"
#include "pid.h"
#include "key.h"
/*---------------变量区------------------*/
/*sprintf显示所用数组*/
u8 dataStr[30];
/*DMA存储的值，volatile类型*/
extern __IO u16 ADC_ConvertedValue[50][3];
float Current;
/*ADC滤波后原始数据*/
u16 ADC_Data_raw[3]={0,0,0};//adc原始数据
u8 Load_flag=0;
extern u8 mode;//按键设置模式
extern float adc[3];
float PID1,PID2,PID3,Cur1,Cur2,Vol;
u16 pid_except=2480;
u16 pid_except1=2480;
/*---------------变量区------------------*/
int main(void)
{
SystemInit();
SysTick_init(); //延时初始化
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
TIM1_Mode_Config(6000-1,0);
TIM3_Mode_Config(6000-1,0);
SPI2_Init(); //初始化SPI硬件口
KEY_Init();
OLED_Init(); //初始化OLED
TIM2_base();//初始化定时器，定时器中断中处理adc读数
ADC1_Init();
while (1)
{
if(mode==0)
{
Current=(0.9341*(float)ADC_Data_raw[1]-11.4)/4096*3.3;
if(Current>2.5)
{
OLED_Clear();
OLED_ShowString(40,32,"Warning");
TIM1->CCR2=0;
delay_ms(5000);
TIM1->CCR2=PID1;
delay_ms(500);
OLED_Clear();
}
else if(Current<=2.5)
{
PID1=Pid_TIM1_control(pid_except);
TIM1->CCR2=PID1;
sprintf((char *)dataStr,"V:%1.3fv A1-9",adc[0]*4);// a1
//sprintf(dataStr,"V:%1.3fv (PA1)",(float)ADC_ConvertedValue[0][0]/4096*3.3);// a1
OLED_ShowString(1,0,dataStr);
sprintf((char *)dataStr,"A:%1.3fa (PA4)",Current);
OLED_ShowString(1,16,dataStr);
sprintf((char *)dataStr,"w:%1.3f",Current*adc[0]*4.0);//
OLED_ShowString(1,32,dataStr);
sprintf((char *)dataStr,"e:%4d",pid_except);//功率
OLED_ShowString(1,48,dataStr);
sprintf((char *)dataStr,"m:%d",mode);
OLED_ShowString(90,48,dataStr);
} //else if
//TIM3->CCR1=PID2;
}//if(mode==0)
else
{
PID2=Pid_TIM1_control((0.9773*(float)ADC_Data_raw[1]-47.5)*1.07);
TIM1->CCR2=PID2;
PID3=Pid_TIM3_control(pid_except1);
TIM3->CCR1=PID3;
//// Cur1=(0.9341*(float)ADC_Data_raw[0]+8.688)/4096*3.3;
Cur1=(0.9341*(float)ADC_Data_raw[0]-11.4)/4096*3.3;
Cur2=(0.9773*(float)ADC_Data_raw[1]-47.5)/4096*3.3;
Vol=(float)ADC_Data_raw[2]/4096*3.3*4;
sprintf((char *)dataStr,"A:%1.3fa",Cur1);
OLED_ShowString(1,0,dataStr);
sprintf((char *)dataStr,"A:%1.3fa",Cur2);
OLED_ShowString(1,16,dataStr);
sprintf((char *)dataStr,"V:%1.3fv",Vol);
OLED_ShowString(1,32,dataStr);
sprintf((char *)dataStr,"e:%1.2f",(float)pid_except1/4096*3.3);
OLED_ShowString(80,32,dataStr);
sprintf((char *)dataStr,"P:%1.3fw",Vol*(Cur1+Cur2));
OLED_ShowString(1,48,dataStr);
sprintf((char *)dataStr,"m:%d",mode);
OLED_ShowString(90,48,dataStr);
}
key_scan();
}//while(1)
}