IscIndMachine.rst

IscIndMachine

The IscIndMachine class provides access to an IPSA induction machine, to set and get data values and to retrieve load flow and fault level results.

Field Values

.. tabularcolumns:: |\Y{0.15}|\Y{0.25}|\Y{0.6}|

IscIndMachine Field Values

Type	Field Name	Description
Integer	FromUID	Gets the unique ID for busbar.
String	BusName	Gets the busbar name.
String	Name	Gets the induction machine name.
Integer	Status	Status: 0 = Switched in 1 = Switched in, but can be switched out during transient studies -1 = Switched out, but can be switched in during transient studies
Float	MechPowerMW	Mechanical power output of motor. Use negative values for induction generators.
Float	SlipPC	Slip in %.
Float	MagnetXPU	Magnetising reactance.
Float	StatorRPU	Stator resistance.
Float	StatorXPU	Stator reactance.
Integer	Model	The motor model used: 0 = Running - standstill 1 = Inner - outer 2 = Not used 3 = Not used 4 = Running - standstill DFIG with slip control 5 = Inner - outer DFIG with slip control 6 = Running - standstill DFIG with slip and power factor control 7 = Inner - outer DFIG with slip and power factor control
Float	RotorRPU	Inner cage or running rotor resistance.
Float	RotorXPU	Inner cage or running rotor reactance.
Float	StandRPU	Outer cage or standstill rotor resistance.
Float	StartXPU	Outer cage or standstill rotor reactance.
Float	TSlipB	Load torque-speed coefficient B.
Float	TSlipC	Load torque-speed squared coefficient C.
Float	InertiaSec	Inertia constant in kWs / kVA.
Float	DropoffVPU	If the voltage falls below this value disconnection will begin.
Float	DropPickUpDelaySec	The time taken to disconnect the machine.
Float	LockTimeSec	If a machine is disconnected for this length of time it will not be reconnected.
Float	UnderspeedPU	Under speed setting in per unit.
Float	OverspeedPU	Overspeed setting in per unit.
Float	PickUpTimeSec	The time taken to reconnect the machine.
Float	PickUpVoltagePU	If the voltage in per unit rises above this value reconnection will begin.
Float	SwitchOut1Sec	Time for the first switch-out operation. If the machine is already switched out, leave this entry blank.
Float	SwitchIn1Sec	Time for first switch-in.
Float	SwitchOut2Sec	Time for second switch-out.
Float	SwitchIn2Sec	Time for second switch-in.
Integer	MaxSwitchOp	Maximum number of automatic switching operations before the machine is locked out.
Integer	DFFeedBusbar	Feed busbar UID for doubly-fed model.
Float	DFPowerFactor	Power factor for doubly-fed model.
Boolean	DFExportQ	If True then reactive power is exported by the machine, else it is imported.
Integer	DFRotorReferenceFrame	Rotor reference frame, either: 0 = Direct-Quadrature aligned to stator voltage 1 = Real-Imaginary aligned to stator voltage
Integer	DFFaultSwitchMode	How the DFIG behaves when a fault is detected: 0 = Turn off rotor, stator and turbine. 1 = Turn off rotor, switch permanently to induction generator mode. 2 = Turn off rotor, switch to induction generator mode, reset on time. 3 = Turn off rotor, switch to induction generator mode, reset on current.
Float	DFFaultRotorCurrentLimit	When DFIG rotor current exceeds this value the DFIG alters its behaviour as determined by the fault switch mode.
Float	DFFaultCrowbarLimit	The effect of this parameter is determined by the fault switch mode. See the online help manual for details.
Float	DFFaultCrowbarResPU	Crowbar fault resistance (per unit on system base and rotor voltage base).
String	DbType	Gets the database type.
Integer	DbPar	Gets the number of motors in parallel.
Integer	ControlModelType	Gets the Dynamic Model type. 0 = Built in 1 = Plugin 2 = UDM
Float	RatedMW	The rated MW power of the machine. Only used in IEC60909 fault analysis.
Float	RatedMVA	The rated MVA power of the machine. Only used in IEC60909 fault analysis.
Integer	PolePairs	The number of pole pairs of the machine. Only used in IEC60909 fault analysis.
String	ControlPluginID	Gets the control plugin ID.

IscIndMachine Class

.. autoclass:: ipsa.IscIndMachine
   :members: