基于stm32的自制pid闭环单相逆变电源源程序 -

#include "stm32f4xx.h"
#include "usart.h"
#include "delay.h"
#include "bsp_advance_tim.h"
#include "bsp_spwm.h"
#include "ShuangLu.h"
#include "PID.h"
#include "bsp_adc.h"
#include "SD_io.h"
#include "oled.h"
#include "filter.h"
#include "bsp_spwm.h"
#define current_threshold 3
u8 DispADBuff[2][30]; //用于存放字符
extern u16 ADC_ConvertedValue[NOFCHANEL];//DAC_DMA传值处
extern PID pid_voltage; //存放电压PID的参数
extern float ADC_Final_DisplayValue[NOFCHANEL]; //用于存放最终显示值
extern u16 ADC_filter_Value[NOFCHANEL]; //用于存放滤波后值
extern u8 AD_Flag;
u32 Display_flag=0;//是否显示，PID是否更新
extern PID pid_voltage;
u8 PID_start=0;
int main(void)
{
delay_init(168);
ShuangLu_Init();
ADC_X_Init();
TIMx_Configuration();
OLED_Init();
PID_init(0.001,0.001,0,SPWM_default_ratio);
while(1)
{
if(Display_flag%1000==0)
{
AD_Flag=AD_voltage; ADC_filter_Value[0]=middleValueFilter();
AD_Flag=AD_current; ADC_filter_Value[1]=middleValueFilter();
ADC_Final_DisplayValue[0] =(float) ADC_filter_Value[0]/4096*3.3*36.7862-46.285; //电压检测
ADC_Final_DisplayValue[1] =(float) ADC_filter_Value[1]/4096*3300*1.448-18; //电流检测
//PID电压计算输出，设定值24V,输入电压检测值
if((ADC_Final_DisplayValue[0]/24>0.98)&&(ADC_Final_DisplayValue[0]/24)<1.02)PID_start=1;
if(PID_start==1)PID_Calc(ADC_Final_DisplayValue[0],24,0.8,0.2);
}
if((Display_flag>10000)||(Display_flag==1))
{
sprintf(DispADBuff[0],"V=%.2fV\0",ADC_Final_DisplayValue[0]);//电压显示
sprintf(DispADBuff[1],"I1=%.3fA\0",ADC_Final_DisplayValue[1]);//电流显示
OLED_ShowString(0,0,DispADBuff[0]);
OLED_ShowString(0,2,DispADBuff[1]);
Display_flag=2;
}
// if(ADC_Final_DisplayValue[2]>current_threshold)
// {
// GPIO_SetBits(SD_io_PORT,SD_io_I1|SD_io_I2);
// delay_ms(1000);delay_ms(1000);delay_ms(1000);delay_ms(1000);delay_ms(1000);delay_ms(1000);
// pid_voltage.SEk=0;
// GPIO_ResetBits(SD_io_PORT,SD_io_I1|SD_io_I2);
// }
}
}

复制代码