void buck_Enable(){ //启用 MPPT 降压转换器 buckEnable = 1; digitalWrite(buck_EN,HIGH); digitalWrite(LED,HIGH); } void buck_Disable(){ //禁用 MPPT 降压转换器 buckEnable = 0; digitalWrite(buck_EN,LOW); digitalWrite(LED,LOW); PWM = 0; } void predictivePWM(){ //预测PWM 算法 if(voltageInput<=0){PPWM=0;} ///当电压输入为零时防止不确定答案 else if(voltageOutput>voltageBatteryMax){PPWM =(PPWM_margin*pwmMax*voltageBatteryMax)/(100.00*voltageInput)*0.98;} //计算预测 PWM Floor 并存储在变量中 else{PPWM =(PPWM_margin*pwmMax*voltageOutput)/(100.00*voltageInput);} //计算预测 PWM Floor 并存储在变量中 PPWM = constrain(PPWM,0,pwmMaxLimited); } void PWM_Modulation(){ if(output_Mode==0){PWM = constrain(PWM,0,pwmMaxLimited);} //PSU MODE PWM = PWM OVERFLOW PROTECTION(将下限限制为 0%,上限限制为最大允许占空比) else{ predictivePWM(); //运行和计算预测 pwm floor PWM = constrain(PWM,PPWM,pwmMaxLimited); //CHARGER MODE PWM - 将下限限制为 PPWM,上限限制为最大允许占空比) } ledcWrite(pwmChannel,PWM); //设置 PWM 占空比并在启用降压时写入 GPIO buck_Enable(); //开启 MPPT 降压 (IR2104) } void Charging_Algorithm(){ if(ERR>0||chargingPause==1){buck_Disable();} //当出现错误或充电暂停用于暂停覆盖时关闭 MPPT 降压 else{ if(REC==1){ // IUV RECOVERY - (仅对充电模式有效) REC=0; //重置 IUV 恢复布尔标识符 buck_Disable(); //在 PPWM 初始化之前禁用降压 lcd.setCursor(0,0);lcd.print("POWER SOURCE "); //显示液晶信息 lcd.setCursor(0,1);lcd.print("DETECTED "); //显示液晶信息 Serial.println("> Solar Panel Detected"); //显示串口信息 Serial.print("> Computing For Predictive PWM "); //显示串口信息 for(int i = 0; i<40; i++){Serial.print(".");delay(30);} //For loop "loading... 效果 Serial.println(""); //在串行上显示下一行的换行符 Read_Sensors(); predictivePWM(); PWM = PPWM; lcd.clear(); } else{ //NO ERROR PRESENT - 继续电源转换 /////////////////////// CC-CV BUCK PSU ALGORITHM ////////////////////////////// if(MPPT_Mode==0){ // CC-CV PSU 模式 if(currentOutput>currentCharging) {PWM--;} //电流高于 → 降低占空比 else if(voltageOutput>voltageBatteryMax){PWM--;} //电压高于 → 降低占空比 else if(voltageOutputcurrentCharging){PWM--;} //电流高于 → 降低占空比 else if(voltageOutput>voltageBatteryMax){PWM--;} //电压高于 → 降低占空比 else{ //MPPT 算法 if(powerInput>powerInputPrev && voltageInput>voltageInputPrev) {PWM--;} // ↑P ↑V ; →MPP //D-- else if(powerInput>powerInputPrev && voltageInputvoltageInputPrev){PWM++;} // ↓P ↑V ; MPP→ //D++ else if(powerInputvoltageBatteryMax) {PWM--;} // MP MV ; 达到 MPP else if(voltageOutput