See Also
PlayIn models are used to play input data into the transient stability tool at a specified time. The models are set to be used as a generator, a reference signal or a governor. Respectively there are three types of PlayIn models available: PlayInGen, PlayInRef, PlayInGov and PlayInEx. The data for the models can be set manually using the PlayIn Configuration model type inside the Transient Stability folder on the Model Explorer.
In the PlayIn Configuration model type you can insert a PlayIn model signal by its name and specified Offset to be applied when play in that particular model. To insert a new PlayIn model, right click on the PlayIn entry and choose Insert. This will open a dialog to enter the PlayIn model Name. Then after pressing OK the PlayIn Time offset can be specified. To insert data to a particular PlayIn Model right click on the entry and choose Show Dialog. This will open another dialog with a case information display to enter the data for the PlayIn Model. The Dialog have the PayInName which can be rename and also the Time Offset can be changed. Below there are two tabs: Signals Info and Signals.
In the Signal Info tab you specified the Signal Index as well as a respective name, scale, offset and filter. These signals are the signals that the PlayIn Model will have. For example, a PlayIn generator will need a signal for the amplitude of the Thevenin source and the frequency of the generator. The scale is used to scale the signal to a particular value. The offset will be applied to the signal to match the initial condition of the particular signal established in the initialization of the model. The filter values is a time constant, such as for a filter block [1/(1+sT)], used to filter the signal.
In the Signal Tab the signal value can be specified for the particular signal index. To insert a new signal time right click in an entry and choose insert. This will open a dialog to specify a time for the signals.
The other easy way to enter PlayIn signals and new PlayIn models is to use an auxiliary file with the desired signals and the desired data values, offset, scale and filter values.
PlayInGen Model
The PlayInGen model is a generator model to play in data to the transient stability tool. The PlayIn Gen models a generator Thevenin voltage amplitude source in p.u. and the frequency amplitude in p.u.
The model can be entered in the generator dialog Machine Models Stability Tab and will required the following:
- PlayIn Model Signal applied for the particular generator.
- VIndex: Index of the Thevenin Voltage amplitude signal.
- FIndex: Index of the frequency amplitude signal.
- Rth: The Thevenin resistance of the generator in p.u.
- Xth: The Thevenin reactance of the generator in p.u.
PlayInRef Model
The PlayInRef model is a voltage regulator and governor reference model to play in data to the transient stability tool. The PlayInRef models a voltage regulator reference voltage in p.u. and the governor reference Pref (Speed-load reference) in p.u.
The model can be entered in the generator dialog Other Models Stability Tab and will required the following:
- PlayIn Model Signal applied for the particular generator.
- VIndex: Index of the voltage regulator reference signal.
- FIndex: Index of the governor reference signal.
PlayInGov Model
The PlayInGov model is a governor model to play in data to the transient stability tool. The PlayInGov models a governor mechanical power (Pmech) in p.u.
The model can be entered in the generator dialog Governors Stability Tab and will required the following:
- PlayIn Model Signal applied for the particular generator.
- FIndex: Index of the governor Pmech reference signal.
PlayInEx Model
The PlayInEx model is a n exciter model to play in data to the transient stability tool. The PlayInEx models an exciter field voltage in p.u.
The model can be entered in the generator dialog Exciters Stability Tab and will required the following:
- PlayIn Model Signal applied for the particular generator.
- FIndex: Index of the exciter field voltage signal.