74 lines
5.6 KiB
Arduino
74 lines
5.6 KiB
Arduino
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void buck_Enable(){ //启用 MPPT 降压转换器
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buckEnable = 1;
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digitalWrite(buck_EN,HIGH);
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digitalWrite(LED,HIGH);
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}
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void buck_Disable(){ //禁用 MPPT 降压转换器
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buckEnable = 0;
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digitalWrite(buck_EN,LOW);
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digitalWrite(LED,LOW);
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PWM = 0;
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}
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void predictivePWM(){ //预测PWM 算法
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if(voltageInput<=0){PPWM=0;} ///当电压输入为零时防止不确定答案
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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
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else{PPWM =(PPWM_margin*pwmMax*voltageOutput)/(100.00*voltageInput);} //计算预测 PWM Floor 并存储在变量中
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PPWM = constrain(PPWM,0,pwmMaxLimited);
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}
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void PWM_Modulation(){
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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）
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else{
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predictivePWM(); //运行和计算预测 pwm floor
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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）
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}
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ledcWrite(pwmChannel,PWM); //设置 PWM 占空比并在启用降压时写入 GPIO
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buck_Enable(); //开启 MPPT 降压 (IR2104)
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}
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void Charging_Algorithm(){
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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
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else{
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if(REC==1){ // IUV RECOVERY - (仅对充电模式有效)
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REC=0; //重置 IUV 恢复布尔标识符
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buck_Disable(); //在 PPWM 初始化之前禁用降压
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lcd.setCursor(0,0);lcd.print("POWER SOURCE "); //显示液晶信息
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lcd.setCursor(0,1);lcd.print("DETECTED "); //显示液晶信息
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Serial.println("> Solar Panel Detected"); //显示串口信息
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Serial.print("> Computing For Predictive PWM "); //显示串口信息
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for(int i = 0; i<40; i++){Serial.print(".");delay(30);} //For loop "loading... 效果
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Serial.println(""); //在串行上显示下一行的换行符
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Read_Sensors();
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predictivePWM();
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PWM = PPWM;
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lcd.clear();
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}
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else{ //NO ERROR PRESENT - 继续电源转换
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/////////////////////// CC-CV BUCK PSU ALGORITHM //////////////////////////////
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if(MPPT_Mode==0){ // CC-CV PSU 模式
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if(currentOutput>currentCharging) {PWM--;} //电流高于 → 降低占空比
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else if(voltageOutput>voltageBatteryMax){PWM--;} //电压高于 → 降低占空比
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else if(voltageOutput<voltageBatteryMax){PWM++;} //当输出低于充电电压时增加占空比（仅用于 CC-CV 模式）
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else{} //当达到设定的输出电压时什么都不做
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PWM_Modulation(); //将 PWM 信号设置为 Buck PWM GPIO
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}
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/////////////////////// MPPT & CC-CV 充电算法 ///////////////////////
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else{
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if(currentOutput>currentCharging){PWM--;} //电流高于 → 降低占空比
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else if(voltageOutput>voltageBatteryMax){PWM--;} //电压高于 → 降低占空比
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else{ //MPPT 算法
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if(powerInput>powerInputPrev && voltageInput>voltageInputPrev) {PWM--;} // ↑P ↑V ; →MPP //D--
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else if(powerInput>powerInputPrev && voltageInput<voltageInputPrev){PWM++;} // ↑P ↓V ; MPP← //D++
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else if(powerInput<powerInputPrev && voltageInput>voltageInputPrev){PWM++;} // ↓P ↑V ; MPP→ //D++
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else if(powerInput<powerInputPrev && voltageInput<voltageInputPrev){PWM--;} // ↓P ↓V ; ←MPP //D--
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else if(voltageOutput>voltageBatteryMax) {PWM--;} // MP MV ; 达到 MPP
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else if(voltageOutput<voltageBatteryMax) {PWM++;} // MP MV ; 达到 MPP
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powerInputPrev = powerInput; // 存储以前记录的功率
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voltageInputPrev = voltageInput; //存储先前记录的电压
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}
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PWM_Modulation(); //将 PWM 信号设置为 Buck PWM GPIO
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}
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}
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}
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}
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