This component models a single-phase induction motor.
NOTE: This component is a result of a collaborative effort between Manitoba Hydro International, Ltd. and The University of Wollongong, Australia.
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NOTE: The Base Impedance on the stator side is (Rated Voltage (L-L))2/(Rated Power).
Motor Name |
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Text |
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Just an identifier. A name should be entered here to avoid compilation warnings. |
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Rated Power |
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REAL |
Constant |
Enter the rated power of the machine [MW]. |
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Rated Voltage |
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REAL |
Constant |
Enter the rated voltage of the machine [kV]. |
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Rated Frequency |
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REAL |
Constant |
Enter the rated frequency of the machine [Hz] |
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Stator Turns Ratio [Auxiliary/Main] |
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REAL |
Constant |
Enter the stator / rotor turns ratio obtained from an open circuit test. |
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Angular Moment of Inertia (J=2H) |
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REAL |
Constant |
This is the total inertia of all masses rotating on the machine shaft (including mechanical loads). If you are provided with the value of the Inertia Constant (H), multiply the value by 2 to obtain the value of J in per unit. [s] or [MWs/MVA]. |
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Mechanical Damping |
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REAL |
Constant |
Enter a value for mechanical damping to compensate for friction and windage loss [pu]. |
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Multimass Interface |
Choice |
Select Enabled or Disabled. See Multi-Mass Torsional Shaft Interface. |
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Mutual Saturation |
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Choice |
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Select Enabled or Disabled. |
Internal ParametersInternal Parameters
Stator Resistance Auxiliary Winding |
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REAL |
Constant |
Resistance of the auxiliary winding [pu]. |
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Stator Leakage Reactance Auxiliary Winding |
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REAL |
Constant |
Leakage reactance of the auxiliary winding [pu]. |
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Unsaturated Magnetizing Reactance |
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REAL |
Constant |
Unsaturated magnetizing reactance [pu]. |
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Stator Resistance Main Winding |
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REAL |
Constant |
Resistance of the main winding [pu]. |
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Stator Leakage Reactance Main Winding |
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REAL |
Constant |
Leakage reactance of the main winding [pu]. |
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Rotor Resistance |
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REAL |
Constant |
Resistance of the rotor winding [pu]. |
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Rotor Leakage Reactance |
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REAL |
Constant |
Leakage reactance of the rotor winding [pu]. |
Mutual Saturation Curve (I, V)Mutual Saturation Curve (I, V)
NOTE: These properties are only enabled if Mutual Saturation is set to Enabled.
Number of Points Available |
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Choice |
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Select 3-10. Number of data points available. |
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Point # - Magnetizing Current |
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REAL |
Constant |
First current point of the magnetizing curve [pu] |
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Point # - Magnetizing Voltage |
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REAL |
Constant |
First voltage point of the magnetizing curve [pu] |
Internal Output VariablesInternal Output Variables
Mechanical Speed (pu) |
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REAL |
Output |
Enter a name for the machine mechanical speed [pu]. |
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Electrical Torque (pu) |
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REAL |
Output |
Enter a name for electrical torque [pu]. |