modelBESSCurrentSource

WECC BESS with electrical control model type C, generator/converter model type A and plant control type A

Extends from Dynawo.Electrical.BESS.WECC.BaseClasses.BaseBESSCurrentSource (Partial base model for WECC BESS with electrical control model type C, generator/converter model type A), Dynawo.Electrical.Controls.WECC.Parameters.REPC.ParamsREPC, Dynawo.Electrical.Wind.WECC.BaseClasses.BasePCS (Base model of the Power Collection System to be extended in the WECC models of power plants).

Information

The power collection system and measurement nodes are not specified in the WECC standard. Thus, we decided to make it flexible in the model.

With ConverterLVControl switch, you decide whether the inverter is controlling P,Q,U in low voltage or medium voltage.

With PPCLocal switch, you decide whether the plant controller is controlling P, Q, U at the model terminal or at a node outside the model.

Depending on PPCLocal and ConverterLVControl's values, the impedances of the group transformer (RLvTrPu, XLvTrPu) and of the main transformer (BMvHvPu ,GMvHvPu, RMvHvPu, XMvHvPu) won't be applied to the same block model. The following diagram explains it :

Parameters

Type	Name	Default	Description
Types.ApparentPowerModule	SNom (from ParamsREEC)		Nominal apparent power in MVA
Types.CurrentModulePu	Id0Pu (from ParamsREEC)		Start value of d-component current at injector terminal in pu (generator convention) (base SNom, UNom)
Types.CurrentModulePu	Iq0Pu (from ParamsREEC)		Start value of q-component current at injector terminal in pu (generator convention) (base SNom, UNom)
Types.PerUnit	PF0 (from ParamsREEC)		Start value of power factor
Types.ActivePowerPu	PConv0Pu (from ParamsREEC)		Start value of active power at converter terminal in pu (generator convention) (base SNom)
Types.ReactivePowerPu	QConv0Pu (from ParamsREEC)		Start value of reactive power at converter terminal in pu (generator convention) (base SNom)
Types.VoltageModulePu	UInj0Pu (from ParamsREEC)		Start value of voltage magnitude at injector terminal in pu (base UNom)
Types.ComplexPerUnit	s0Pu (from ParamsREEC)		Start value of complex apparent power at terminal in pu (base SnRef) (receptor convention)
Types.ComplexVoltagePu	u0Pu (from ParamsREEC)		Start value of complex voltage at terminal in pu (base UNom)
Types.VoltageModulePu	UConv0Pu (from ParamsREEC)		Start value of voltage module at converter terminal in pu (base UNom)
Types.ComplexPerUnit	uConv0Pu (from ParamsREEC)		Start value of complex voltage at converter terminal in pu (base UNom)
Types.ComplexCurrentPu	i0Pu (from BaseBESSCurrentSource)		Start value of complex current at terminal in pu (base UNom, SnRef) (receptor convention)
Types.ComplexPerUnit	iConv0Pu (from BaseBESSCurrentSource)		Start value of complex current at converter terminal in pu (base UNom, SNom) (generator convention)
Types.ActivePowerPu	PInj0Pu (from BaseBESSCurrentSource)		Start value of active power at injector terminal in pu (generator convention) (base SNom)
Types.ReactivePowerPu	QInj0Pu (from BaseBESSCurrentSource)		Start value of reactive power at injector terminal in pu (generator convention) (base SNom)
Types.PerUnit	SOC0Pu (from BaseBESSCurrentSource)		Initial state of charge in pu (base SNom)
Types.ComplexPerUnit	uInj0Pu (from BaseBESSCurrentSource)		Start value of complex voltage at injector in pu (base UNom)
Types.Angle	UPhaseConv0 (from BaseBESSCurrentSource)		Value of voltage phase angle at converter terminal in rad
Types.PerUnit	RPu (from ParamsLvTfo)	if ConverterLVControl then 1e-5 else RLvTrPu	Serial resistance between injector output and LvTfo in pu (base UNom, SNom). Including source resistance for voltage source.
Types.PerUnit	XPu (from ParamsLvTfo)	if ConverterLVControl then 1e-5 else XLvTrPu	Serial reactance between injector output and LvTfo in pu (base UNom, SNom). Including source resistance for voltage source.
Types.PerUnit	BPcsPu (from ParamsPCS)	if PPCLocal then BMvHvPu else 1e-5	Shunt susceptance between converter terminal and model's output terminal in pu (base UNom, SNom)
Types.PerUnit	GPcsPu (from ParamsPCS)	if PPCLocal then GMvHvPu else 1e-5	Shunt conductance between converter terminal and model's output terminal in pu (base UNom, SNom)
Types.PerUnit	RPcsPu (from ParamsPCS)	if PPCLocal and ConverterLVControl then RLvTrPu + RMvHvPu elseif PPCLocal and not ConverterLVControl then RMvHvPu elseif not PPCLocal and ConverterLVControl then RLvTrPu else 1e-5	Serial resistance between converter terminal and model's output terminal in pu (base UNom, SNom)
Types.PerUnit	XPcsPu (from ParamsPCS)	if PPCLocal and ConverterLVControl then XLvTrPu + XMvHvPu elseif PPCLocal and not ConverterLVControl then XMvHvPu elseif not PPCLocal and ConverterLVControl then XLvTrPu else 1e-5	Serial reactance between converter terminal and model's output terminal in pu (base UNom, SNom)
Types.ComplexCurrentPu	iControl0Pu (from BasePCS)	if PPCLocal then i0Pu else iPcc0Pu	Initial complex current to be controlled by the PPC coming either from the external bus or from the model's output terminal in pu (base UNom, SnRef) (receptor convention)
Types.ComplexCurrentPu	iPcc0Pu (from BasePCS)	ComplexMath.conj(Complex(PPcc0Pu, QPcc0Pu)/uPcc0Pu)	Start value of complex current at external PCC in pu (used when PPCLocal = false, meaning the PCS is defined outside of the model) in pu (base UNom, SnRef) (receptor convention)
Types.ActivePowerPu	P0Pu (from BasePCS)		Start value of active power at converter terminal in pu (base SnRef) (receptor convention)
Types.ActivePowerPu	PControl0Pu (from BasePCS)	if PPCLocal then -P0PuSystemBase.SnRef/SNom else -PPcc0PuSystemBase.SnRef/SNom	Initial active power at the point controlled by the PPC (either model's output terminal or external PCC) in pu (base SNom) (generator convention)
Types.ReactivePowerPu	Q0Pu (from BasePCS)		Start value of reactive power at converter terminal in pu (base SnRef) (receptor convention)
Types.ReactivePowerPu	QControl0Pu (from BasePCS)	if PPCLocal then -Q0PuSystemBase.SnRef/SNom else -QPcc0PuSystemBase.SnRef/SNom	Initial reactive power at the point controlled by the PPC (either model's output terminal or external PCC) in pu (base SNom) (generator convention)
Types.VoltageModulePu	U0Pu (from BasePCS)		Start value of voltage magnitude at converter terminal in pu (base UNom)
Types.VoltageModulePu	UControl0Pu (from BasePCS)		Initial voltage amplitude at the point controlled by the PPC (either model's output terminal or external PCC) in pu (base UNom)
Types.ComplexVoltagePu	uControl0Pu (from BasePCS)	if PPCLocal then u0Pu else uPcc0Pu	Initial complex voltage to be controlled by the PPC coming either from the external bus or from the model's output terminal in pu (base UNom)
Types.VoltageModulePu	UPcc0Pu (from BasePCS)	1	Start value of voltage magnitude at regulated bus in pu (base UNom)
PLL
Types.PerUnit	KiPLL (from ParamsPLL)		PLL integrator gain
Types.PerUnit	KpPLL (from ParamsPLL)		PLL proportional gain
Types.AngularVelocityPu	OmegaMaxPu (from ParamsPLL)		Upper frequency limit in pu (base omegaNom)
Types.AngularVelocityPu	OmegaMinPu (from ParamsPLL)		Lower frequency limit in pu (base omegaNom)
Electrical Control › REEC
Boolean	PfFlag (from ParamsREEC)		Power factor flag: Q control (0) or pf control(1)
Boolean	PQFlag (from ParamsREEC)		Q/P priority: Q priority (0) or P priority (1)
Boolean	QFlag (from ParamsREEC)		Q control flag: const. pf or Q ctrl (0) or voltage/Q (1)
Boolean	VFlag (from ParamsREEC)		Voltage control flag: voltage control (0) or Q ctrl (1)
Types.VoltageModulePu	Dbd1Pu (from ParamsREEC)		Overvoltage deadband for reactive current injection in pu (base UNom) (typical: -0.1..0)
Types.VoltageModulePu	Dbd2Pu (from ParamsREEC)		Undervoltage deadband for reactive current injection in pu (base UNom) (typical: 0..0.1)
Types.PerUnit	DPMaxPu (from ParamsREEC)		Active power upper rate limit in pu/s (base SNom) (typical: > 0.1, set to 99 to disable)
Types.PerUnit	DPMinPu (from ParamsREEC)		Active power lower rate limit in pu/s (base SNom) (typical: < -0.1, set to -99 to disable)
Types.CurrentModulePu	IMaxPu (from ParamsREEC)		Maximal apparent current magnitude in pu (base UNom, SNom) (typical: 1..2)
Types.PerUnit	Iqh1Pu (from ParamsREEC)		Maximum reactive current injection (typical: 1..1.1) in pu (base UNom, SNom)
Types.PerUnit	Iql1Pu (from ParamsREEC)		Minimum reactive current injection (typical: -1.1..-1) in pu (base UNom, SNom)
Types.PerUnit	Kqi (from ParamsREEC)		Integrator gain local reactive power PI controller
Types.PerUnit	Kqp (from ParamsREEC)		Proportional gain local reactive power PI controller
Types.PerUnit	Kqv (from ParamsREEC)		K-Factor, reactive current injection gain (typical: 0..10)
Types.PerUnit	Kvi (from ParamsREEC)		Integrator gain local voltage PI controller
Types.PerUnit	Kvp (from ParamsREEC)		Proportional gain local voltage PI controller
Types.ActivePowerPu	PMaxREECPu (from ParamsREEC)		Active power upper limit in REEC in pu (base SNom) (typical: 1)
Types.ActivePowerPu	PMinREECPu (from ParamsREEC)		Active power lower limit in REEC in pu (base SNom) (typical: 0)
Types.ReactivePowerPu	QMaxREECPu (from ParamsREEC)		Reactive power upper limit, when vFlag == 1 in REEC in pu (base SNom)
Types.ReactivePowerPu	QMinREECPu (from ParamsREEC)		Reactive power lower limit, when vFlag == 1 in REEC in pu (base SNom)
Types.Time	tIq (from ParamsREEC)		Filter time constant reactive current in s(typical: 0.01..0.02)
Types.Time	tRv (from ParamsREEC)		Filter time constant terminal voltage in s(typical: 0.01..0.02)
Types.Time	tpREEC (from ParamsREEC)		Active power filter time constant in REEC in s (typical: 0.1..0.2)
Types.Time	tPord (from ParamsREEC)		Filter time constant inverter active power in s
Types.VoltageModulePu	VDipPu (from ParamsREEC)		Low voltage condition trigger voltage for FRT in pu (base UNom) (typical: 0..0.9)
Types.VoltageModulePu	VMaxPu (from ParamsREEC)		Maximum voltage at inverter terminal in pu (base UNom) (typical: 1.05..1.15)
Types.VoltageModulePu	VMinPu (from ParamsREEC)		Minimum voltage at inverter terminal in pu (base UNom) (typical: 0.85..0.95)
Types.VoltageModulePu	VRef0Pu (from ParamsREEC)		Reference voltage for reactive current injection in pu (base UNom) (typical: 0.95..1.05)
Types.VoltageModulePu	VUpPu (from ParamsREEC)		High voltage condition trigger voltage for FRT in pu (base UNom) (typical: 1.1..1.3)
Electrical Control › REECc
Types.PerUnit	SOCMaxPu (from ParamsREECc)		Maximum allowable state of charge in pu (base SNom) (typical: 0.8..1)
Types.PerUnit	SOCMinPu (from ParamsREECc)		Minimum allowable state of charge in pu (base SNom) (typical: 0..0.2)
Types.Time	tBattery (from ParamsREECc)		Time it takes for the battery to discharge when putting out 1 pu power, in s (typically set to 9999 since most batteries are large as compared to the typical simulation time in a stability study)
Types.PerUnit	VDLIp11 (from ParamsREECc)
Types.PerUnit	VDLIp12 (from ParamsREECc)
Types.PerUnit	VDLIp21 (from ParamsREECc)
Types.PerUnit	VDLIp22 (from ParamsREECc)
Types.PerUnit	VDLIp31 (from ParamsREECc)
Types.PerUnit	VDLIp32 (from ParamsREECc)
Types.PerUnit	VDLIp41 (from ParamsREECc)
Types.PerUnit	VDLIp42 (from ParamsREECc)
Types.PerUnit	VDLIq11 (from ParamsREECc)
Types.PerUnit	VDLIq12 (from ParamsREECc)
Types.PerUnit	VDLIq21 (from ParamsREECc)
Types.PerUnit	VDLIq22 (from ParamsREECc)
Types.PerUnit	VDLIq31 (from ParamsREECc)
Types.PerUnit	VDLIq32 (from ParamsREECc)
Types.PerUnit	VDLIq41 (from ParamsREECc)
Types.PerUnit	VDLIq42 (from ParamsREECc)
Types.PerUnit[:,:]	VDLIpPoints (from ParamsREECc)	[VDLIp11, VDLIp12; VDLIp21, VDLIp22; VDLIp31, VDLIp32; VDLIp41, VDLIp42]	Pair of points for voltage-dependent active current limitation piecewise linear curve [u1,y1; u2,y2;...]
Types.PerUnit[:,:]	VDLIqPoints (from ParamsREECc)	[VDLIq11, VDLIq12; VDLIq21, VDLIq22; VDLIq31, VDLIq32; VDLIq41, VDLIq42]	Pair of points for voltage-dependent reactive current limitation piecewise linear curve [u1,y1; u2,y2;...]
Generator Converter › REGC
Types.PerUnit	IqrMaxPu (from ParamsREGC)		Maximum rate-of-change of reactive current after fault in pu (base UNom, SNom) (typical: 1..999)
Types.PerUnit	IqrMinPu (from ParamsREGC)		Minimum rate-of-change of reactive current after fault in pu (base UNom, SNom) (typical: -999..-1)
Types.PerUnit	RrpwrPu (from ParamsREGC)		Active current (or power if RateFlag = true) recovery rate in pu/s (base UNom, SNom) (typical: 1..20)
Types.Time	tFilterGC (from ParamsREGC)		Filter time constant of terminal voltage in s(Cannot be set to zero, typical: 0.02..0.05)
Generator Converter › REGCa
Types.Time	tG (from ParamsREGCa)		Emulated delay in converter controls in s(Cannot be zero, typical: 0.02..0.05)
Types.PerUnit	brkpt (from ParamsREGCa)		LVPL breakpoint in pu (base UNom)
Types.PerUnit	lvpl1 (from ParamsREGCa)		LVPL gain breakpoint in pu
Boolean	Lvplsw (from ParamsREGCa)		Low voltage power logic switch: 1-enabled/0-disabled
Types.PerUnit	zerox (from ParamsREGCa)		LVPL zero crossing in pu (base UNom)
Plant Control
Boolean	FreqFlag (from ParamsREPC)		Governor response disable (0) or enable (1)
Boolean	RefFlag (from ParamsREPC)		Plant level reactive power (0) or voltage control (1)
Boolean	VCompFlag (from ParamsREPC)		Reactive droop (0) or line drop compensation (1) if RefFlag true
Types.PerUnit	DbdPu (from ParamsREPC)		Reactive power (RefFlag = 0) or voltage (RefFlag = 1) deadband in pu (base SNom or UNom) (typical: 0..0.1)
Types.PerUnit	DDn (from ParamsREPC)		Down regulation droop (typical: 20..33.3)
Types.PerUnit	DUp (from ParamsREPC)		Up regulation droop (typical: 0)
Types.PerUnit	EMaxPu (from ParamsREPC)		Maximum Volt/VAR error in pu (base UNom or SNom)
Types.PerUnit	EMinPu (from ParamsREPC)		Minimum Volt/VAR error in pu (base UNom or SNom)
Types.PerUnit	FDbd1Pu (from ParamsREPC)		Overfrequency deadband for governor response in pu (base omegaNom) (typical: 0.004)
Types.PerUnit	FDbd2Pu (from ParamsREPC)		Underfrequency deadband for governor response in pu (base omegaNom)^ (typical: 0.004)
Types.PerUnit	FEMaxPu (from ParamsREPC)		Maximum frequency error in droop regulator in pu (base omegaNom)
Types.PerUnit	FEMinPu (from ParamsREPC)		Minimum frequency error in droop regulator in pu (base omegaNom)
Types.PerUnit	Kc (from ParamsREPC)		Reactive droop when VCompFlag = 0
Types.PerUnit	Ki (from ParamsREPC)		Volt/VAR regulator integral gain
Types.PerUnit	Kig (from ParamsREPC)		Droop regulator integral gain
Types.PerUnit	Kp (from ParamsREPC)		Volt/VAR regulator proportional gain
Types.PerUnit	Kpg (from ParamsREPC)		Droop regulator proportional gain
Types.ActivePowerPu	PMaxREPCPu (from ParamsREPC)		Maximum plant level active power command in REPC in pu (base SNom)
Types.ActivePowerPu	PMinREPCPu (from ParamsREPC)		Minimum plant level active power command in REPC in pu (base SNom)
Types.ReactivePowerPu	QMaxREPCPu (from ParamsREPC)		Maximum plant level reactive power command in REPC in pu (base SNom)
Types.ReactivePowerPu	QMinREPCPu (from ParamsREPC)		Minimum plant level reactive power command in REPC in pu (base SNom)
Types.Time	tFilterPC (from ParamsREPC)		Voltage and reactive power filter time constant in s (typical: 0.01..0.02)
Types.Time	tFt (from ParamsREPC)		Plant controller Q output lead time constant in s
Types.Time	tFv (from ParamsREPC)		Plant controller Q output lag time constant in s (typical: 0.15..5)
Types.Time	tLag (from ParamsREPC)		Plant controller P output lag time constant in s(typical: 0.15..5)
Types.Time	tpREPC (from ParamsREPC)		Active power filter time constant in REPC in s (typical: 0.01..0.02)
Types.VoltageModulePu	VFrz (from ParamsREPC)		Voltage for freezing Volt/VAR regulator integrator (typical: 0..0.9)
LV transformer
Types.PerUnit	RLvTrPu (from ParamsLvTfo)		Serial resistance of LV transformer in pu (base UNom, SNom). Including source resistance for voltage source.
Types.PerUnit	XLvTrPu (from ParamsLvTfo)		Serial reactance of LV transformer in pu (base UNom, SNom). Including source reactance for voltage source.
Boolean	ConverterLVControl (from ParamsLvTfo)		If true, the converter is controlling at its output (LV side of its transformer), if false, after its transformer (MV side)
MV network + MV/HV transformer
Types.PerUnit	BMvHvPu (from ParamsPCS)	0	Shunt susceptance of internal MV network + MV/HV transformer in pu (base UNom, SNom)
Types.PerUnit	GMvHvPu (from ParamsPCS)	0	Shunt conductance of internal MV network + MV/HV transformer in pu (base UNom, SNom)
Types.PerUnit	RMvHvPu (from ParamsPCS)	0	Serial resistance of internal MV network + MV/HV transformer in pu (base UNom, SNom)
Types.PerUnit	XMvHvPu (from ParamsPCS)	0	Serial reactance of internal MV network + MV/HV transformer in pu (base UNom, SNom)
Types.PerUnit	rTfoPu (from ParamsPCS)	1	Transformation ratio in pu: UWT_terminal/UWTG_terminal in no load conditions
Boolean	PPCLocal (from ParamsPCS)		If true, the Power Park Control is controlling at model's output terminal, if false, at a remote terminal using external measurements
Operating point
Types.ActivePowerPu	PPcc0Pu (from BasePCS)	0	Initial active power at the external bus controlled by the PPC (used when PPCLocal = false, meaning the PCS is defined outside of the model) in pu (base UNom, SnRef) (receptor convention)
Types.ReactivePowerPu	QPcc0Pu (from BasePCS)	0	Initial reactive power at the external bus controlled by the PPC (used when PPCLocal = false, meaning the PCS is defined outside of the model) in pu (base UNom, SnRef) (receptor convention)
Types.ComplexVoltagePu	uPcc0Pu (from BasePCS)		Initial voltage module at the external bus controlled by the PPC (used when PPCLocal = false, meaning the PCS is defined outside of the model) in pu (base UNom)

Connectors

Type	Name	Description
Modelica.Blocks.Interfaces.RealInput	omegaRefPu (from BaseBESSCurrentSource)
Modelica.Blocks.Interfaces.RealInput	PAuxPu (from BaseBESSCurrentSource)	Auxiliary input in pu (base SNom) (generator convention)
Modelica.Blocks.Interfaces.RealInput	PFaRef (from BaseBESSCurrentSource)	Power factor angle reference in rad
Dynawo.Connectors.ACPower	terminal (from BasePCS)
Modelica.Blocks.Interfaces.RealInput	PPccPu (from BasePCS)	Active power setpoint at regulated bus in pu (receptor convention) (base SnRef) (used only when PPCLocal = false)
Modelica.Blocks.Interfaces.RealInput	QPccPu (from BasePCS)	Reactive power setpoint at regulated bus in pu (receptor convention) (base SnRef) (used only when PPCLocal = false)
Modelica.ComplexBlocks.Interfaces.ComplexInput	uPccPu (from BasePCS)	Complex voltage at PPC regulated bus in pu (base UNom)
Modelica.Blocks.Interfaces.RealOutput	UControlPu (from BasePCS)	Voltage amplitude at the point controlled by the PPC (either model's output terminal or external PCC) in pu (base UNom)
Modelica.Blocks.Interfaces.RealInput	PRefPu	Active power reference in pu (generator convention) (base SNom)
Modelica.Blocks.Interfaces.RealInput	QRefPu	Reactive power reference in pu (generator convention) (base SNom)
Modelica.Blocks.Interfaces.RealInput	URefPu	Voltage setpoint for plant level control in pu (base UNom)

Components

Type	Name	Default	Description
Dynawo.Electrical.Controls.WECC.REEC.REECc	reecC (from BaseBESSCurrentSource)
Dynawo.Electrical.Controls.WECC.REGC.REGCa	regcA (from BaseBESSCurrentSource)
Controls.PLL.PLL	pll (from BaseBESSCurrentSource)
Sources.InjectorIDQ	injector (from BaseBESSCurrentSource)
Dynawo.Electrical.Controls.WECC.Utilities.Measurements	LvMeasurements (from BaseBESSCurrentSource)
Sources.IEC.BaseConverters.ElecSystem	LvTfo (from BaseBESSCurrentSource)
Modelica.Blocks.Logical.Switch	switch1 (from BasePCS)
Modelica.ComplexBlocks.ComplexMath.ComplexToReal	complexToReal (from BasePCS)
Modelica.Blocks.Logical.Switch	switch3 (from BasePCS)
Modelica.Blocks.Logical.Switch	switch2 (from BasePCS)
Modelica.Blocks.Sources.BooleanConstant	booleanConstant (from BasePCS)
Modelica.ComplexBlocks.ComplexMath.RealToComplex	i (from BasePCS)
Modelica.ComplexBlocks.ComplexMath.RealToComplex	u (from BasePCS)
Modelica.Blocks.Logical.Switch	switch4 (from BasePCS)
Modelica.ComplexBlocks.ComplexMath.ComplexToReal	complexToReal1 (from BasePCS)
Dynawo.Electrical.Controls.WECC.Utilities.Measurements	HvMeasurements (from BasePCS)
Modelica.Blocks.Sources.RealExpression	QRegPuSnExtern (from BasePCS)
Modelica.Blocks.Logical.Switch	switch (from BasePCS)
Modelica.Blocks.Logical.Switch	switch5 (from BasePCS)
Modelica.Blocks.Sources.RealExpression	PRegPuSnExtern (from BasePCS)
Modelica.Blocks.Math.Gain	gain (from BasePCS)
Modelica.Blocks.Math.Gain	gain1 (from BasePCS)
Modelica.ComplexBlocks.ComplexMath.ComplexToReal	complexToReal2 (from BasePCS)
Modelica.ComplexBlocks.ComplexMath.ComplexToReal	complexToReal3 (from BasePCS)
Dynawo.Electrical.Transformers.TransformersFixedTap.TransformerFixedRatio	HvTfo (from BasePCS)
Modelica.ComplexBlocks.Sources.ComplexExpression	complexExpr (from BasePCS)
Dynawo.NonElectrical.Blocks.Complex.ComplexToPolar	complexToPolar (from BasePCS)
Dynawo.Electrical.Controls.WECC.REPC.REPCa	repcA