Heisig_GmbH/Uniper_PLC
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Change E-Stop so that it can also work with one string

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- Also optimized CV charging
This commit is contained in:
Matthias Heisig
2025-10-07 16:23:37 +02:00
parent 8ea7fd74e2
commit eaaa2371e8
16 changed files with 689 additions and 346 deletions
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47
PLC/POUs/MAIN.TcPOU
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@@ -214,12 +214,17 @@ VAR
_fbLimit : FB_Limit;
_xCVChargingLatched : BOOL;
_rCVSetpoint : REAL;
_xStringsFullCV : BOOL;
_rPowerDH : REAL;
_xDHActive : BOOL;
_fbTONDHCycleTime : TON := (PT := T#15M);
_xFullByVoltage : BOOL;
_xFullByCV : BOOL;
_fbTONCVLow : TON;
_xCVCurrentLimitReached : BOOL;
_fbPT1CVAntiAliasFilter : FB_PT1Filter;
// tower light
_fbTowerLight : FB_TowerLight;
END_VAR
@@ -1116,7 +1121,7 @@ _fbTowerLight(
_xBatteryActive := TRUE;
// Check if the battery should still be active
IF (_rAutoPowerRequest = 0.0) AND ((NOT GVL_MODBUS.stModbusEMSComm.stModbusReg12.wBMSControlsRegister.stBitmap.bScheduleActive) OR (NOT _xDHActive)) THEN
IF (_rAutoPowerRequest = 0.0) AND (NOT GVL_MODBUS.stModbusEMSComm.stModbusReg12.wBMSControlsRegister.stBitmap.bScheduleActive) AND (NOT _xDHActive) THEN
_xNoPowerRequested := TRUE;
ELSE
_xNoPowerRequested := FALSE;
@@ -1164,10 +1169,7 @@ _fbTowerLight(
_xCVChargingLatched := TRUE;
END_IF
// Delatch if charging power requested is lower than cv power
//IF _xCVChargingLatched AND (_rAutoPowerRequest > _rPowerInverter) THEN
// _xCVChargingLatched := FALSE;
//END_IF
IF _xCVChargingLatched THEN
// Reglerfreigabe
@@ -1177,31 +1179,43 @@ _fbTowerLight(
_rCVSetpoint := _rHighestSegmentVoltage;
END_IF
_fbPT1CVAntiAliasFilter(rInput := _rHighestSegmentVoltage, timT := T#200MS);
_fbPIControl(
xEnable := _xCVChargingLatched,
rSP:= _rCVSetpoint,
rPV:= _rHighestSegmentVoltage,
rPV:= _fbPT1CVAntiAliasFilter.rOutput,
rKp:= GVL_CONFIG.rCVKp,
rTn:= GVL_CONFIG.rCVTn,
xSaturated:= _fbLimit.xClamped);
_rPowerInverter := _rAutoPowerRequest - _fbPIControl.rMV;
_rPowerInverter := _rAutoPowerRequest - _fbPIControl.rMV;
_fbLimit(
rIn := _rPowerInverter,
rMin := _rMinPower,
rMax := _rMaxPower,
rOut => _rPowerInverter);
IF ((GVL_SCADA.stHMIInterface[0].stInverterData.rActDCCurrent > GVL_CONFIG.rMinCVCurrentForFull) AND GVL_CONFIG.axStringEnabled[0]) OR ((GVL_SCADA.stHMIInterface[1].stInverterData.rActDCCurrent > GVL_CONFIG.rMinCVCurrentForFull) AND GVL_CONFIG.axStringEnabled[1]) THEN
_xStringsFullCV := TRUE;
ELSE
_xStringsFullCV := FALSE;
// Delatch if charging power requested is lower than cv power
IF _xCVChargingLatched AND (_rAutoPowerRequest > _rPowerInverter) THEN
_xCVChargingLatched := FALSE;
END_IF
_xFullByVoltage := (NOT GVL_CONFIG.xCVCharging)
AND (_rPowerInverter < 0)
AND ((_rMaxCurrentInverterDCVoltage >= GVL_CONFIG.rStringFullyChargedVoltage) OR (_rHighestSegmentVoltage >= GVL_CONFIG.rMaximumUnitVoltage));
_xCVCurrentLimitReached := ((GVL_SCADA.stHMIInterface[0].stInverterData.rActDCCurrent > GVL_CONFIG.rMinCVCurrentForFull) AND GVL_CONFIG.axStringEnabled[0]) OR ((GVL_SCADA.stHMIInterface[1].stInverterData.rActDCCurrent > GVL_CONFIG.rMinCVCurrentForFull) AND GVL_CONFIG.axStringEnabled[1]);
_fbTONCVLow(
IN := (_rPowerInverter < 0) AND _xCVCurrentLimitReached AND _xCVChargingLatched,
PT := GVL_CONFIG.timCVCurrentReached
);
_xFullByCV := GVL_CONFIG.xCVCharging AND _fbTONCVLow.Q;
// Shutdown triggered by battery fully charged
IF GVL_MODBUS.stModbusEMSComm.stModbusReg11.eChargeStatus = E_CHARGE_STATUS.CHARGING
AND ((_rMaxCurrentInverterDCVoltage >= GVL_CONFIG.rStringFullyChargedVoltage) OR (_rHighestSegmentVoltage >= GVL_CONFIG.rMaximumUnitVoltage AND (NOT _xCVChargingLatched)) OR _xStringsFullCV) THEN
//OR (_xCVChargingLatched AND ((ABS(GVL_SCADA.stHMIInterface[0].rCurrent) < 8.0) OR (ABS(GVL_SCADA.stHMIInterface[0].rCurrent) < 8.0)))
IF GVL_MODBUS.stModbusEMSComm.stModbusReg11.eChargeStatus = E_CHARGE_STATUS.CHARGING AND (_xFullByVoltage OR _xFullByCV) THEN
_xGetPowerMeterData := TRUE;
IF (_eBMSControlMode = E_BMS_CONTROL_MODE.CYCLING) THEN
GVL_SCADA.eCycleStatus := E_CYCLE_STATUS.DISCHARGE_STARTED;
@@ -1209,6 +1223,7 @@ _fbTowerLight(
GVL_SCADA.stAutomaticModeHMI.diSetpointAutomatic := REAL_TO_DINT(_rAutoPowerRequest);
ELSE
_tonBeginShutdown(In := FALSE);
_fbTONCVLow(In := FALSE);
// Send message
_fbBatteryFullMessage.Send(0);