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The function of a power system stabilizer (PSS) is to extend the small–signal rotor-angle stability limits of the power system by modulating the synchronous machine’s excitation to damp the rotor…
Normally, when you access a variable in PowerFactory, the result of the DPL query is the value as entered in the element dialogue, e.g. oLoad:plini (the active power of a load). To access the actual…
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The attached project includes a DPL script that writes a result file. The result object is defined inside the DPL command. The scaling factor of the loads is changed between 0 and 1, a load flow…
The attached project includes a DPL script that writes a result file and then export it into a comma separated values (csv) file. The result object is defined inside the DPL command. The scaling…
The external grid is modelled as a voltage source with an internal impedance. The mechanical equations are equivalent as those for the synchronous machine. The Acceleration Time Constant (in s)…
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For custom colouring there are two possibilities: Text colour of text boxes depending on IF-condition. For example if P>10 then colour the active power value in the result box of the line red: #.## #…
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You may use the Time Characteristic with data acquisition from a file. To use it you have to define a Time Characteristic of type ChaTime and choose the path and the format of the external file. This…
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Attached is an example (ExampleTCSC.pfd) of a Thyristor Controlled Series Capacitor (TCSC) including a control for power oscillation damping (POD) to be used with RMS simulations.…
For load -flow analysis enter the synchronous machine as a voltage source, using the steady-state impedances (Xd) and the magnitude of the no-load voltage. This represents the behaviour of the…
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In the attached example (FixedSpeedWTG.pfd) an induction generator with the necessary dynamic models is shown. The reactive power is balanced using a switched capacitor. The dynamic models are a shaft…