Periodic Excitation
The Periodic Excitation node can be added as a subfeature to either the Metal Contact or Terminal features. This allows for dual frequency reactors to be modeled, although certain restrictions apply, see Using Consistent Source Frequencies and Period Settings.
The Terminal type setting should be the same as the parent feature (the Metal Contact or Terminal). If the Terminal type differs, a warning node appears in the Model Builder. The following options are available for all terminal types:
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Enter the Frequency fp (SI unit: Hz) for the applied voltage or power. This value must be consistent with the value given for the Period property of the physics interface. See Using Consistent Source Frequencies and Period Settings for further information.
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Enter the Source phase α (dimensionless) of the generator. The default is zero and this rarely needs to be changed.
Depending on the Terminal type, the following is available:
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When the Terminal type is Voltage or Power, select whether the Periodic function should be Cosine or Sine. This simply determines whether the excitation waveform should form a cosine or sine wave over the period.
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Enter values for either the Voltage amplitude Va or Vcir (SI unit: V) or RF Power Prf (SI unit: W) depending on the value selected for the Terminal type.