Prepare Release 2025.01.10

src/PowerLimiterSolarInverter.cpp

@@ -18,15 +18,15 @@ uint16_t PowerLimiterSolarInverter::getMaxIncreaseWatts() const
 {
     if (isEligible() != Eligibility::Eligible) { return 0; }
 
-    // the maximum increase possible for this inverter
-    int16_t maxTotalIncrease = getConfiguredMaxPowerWatts() - getCurrentOutputAcWatts();
-
     if (!isProducing()) {
         // the inverter is not producing, we don't know how much we can increase
         // the power, so we return the maximum possible increase
-        return maxTotalIncrease;
+        return getConfiguredMaxPowerWatts();
     }
 
+    // the maximum increase possible for this inverter
+    int16_t maxTotalIncrease = getConfiguredMaxPowerWatts() - getCurrentOutputAcWatts();
+
     // when the current limit is less than 15% of the max power of the inverter
     // the output will not match the limit as the inverters are not able to work
     // with those low limits. In this case we assume that the inverter is able to
@@ -82,14 +82,27 @@ uint16_t PowerLimiterSolarInverter::getMaxIncreaseWatts() const
         return maxTotalIncrease;
     }
 
-    int16_t maxPowerPerMppt = getConfiguredMaxPowerWatts() / dcTotalMppts;
+    // for inverters without PDL we use the configured max power, because the limit will be divided equally across the MPPTs by the inverter.
+    int16_t inverterMaxPower = getConfiguredMaxPowerWatts();
+
+    // for inverter with PDL or when overscaling is enabled we use the max power of the inverter because each MPPT can deliver its max power.
+    if (_spInverter->supportsPowerDistributionLogic() || _config.UseOverscaling) {
+        inverterMaxPower = getInverterMaxPowerWatts();
+    }
+
+    int16_t maxPowerPerMppt = inverterMaxPower / dcTotalMppts;
 
     int16_t currentPowerPerNonShadedMppt = nonShadedMpptACPowerSum / dcNonShadedMppts;
 
     int16_t maxIncreasePerNonShadedMppt = maxPowerPerMppt - currentPowerPerNonShadedMppt;
 
-    // maximum increase based on the non-shaded mppts
-    return maxIncreasePerNonShadedMppt * dcNonShadedMppts;
+    // maximum increase based on the non-shaded mppts, can be higher than maxTotalIncrease for inverters
+    // with PDL when getConfiguredMaxPowerWatts() is less than getInverterMaxPowerWatts() divided by
+    // the number of used/unshaded MPPTs.
+    int16_t maxIncreaseNonShadedMppts = maxIncreasePerNonShadedMppt * dcNonShadedMppts;
+
+    // maximum increase should not exceed the max total increase
+    return std::min(maxTotalIncrease, maxIncreaseNonShadedMppts);
 }
 
 uint16_t PowerLimiterSolarInverter::applyReduction(uint16_t reduction, bool)

src/gridcharger/huawei/Controller.cpp

@@ -287,6 +287,8 @@ void Controller::loop()
 
 void Controller::setParameter(float val, HardwareInterface::Setting setting)
 {
+    std::lock_guard<std::mutex> lock(_mutex);
+
     if (_mode == HUAWEI_MODE_AUTO_INT &&
         setting != HardwareInterface::Setting::OfflineVoltage &&
         setting != HardwareInterface::Setting::OfflineCurrent) { return; }
@@ -296,7 +298,7 @@ void Controller::setParameter(float val, HardwareInterface::Setting setting)
 
 void Controller::_setParameter(float val, HardwareInterface::Setting setting)
 {
-    std::lock_guard<std::mutex> lock(_mutex);
+    // NOTE: the mutex is locked by any method calling this private method
 
     if (!_upHardwareInterface) { return; }