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In the attached example the output power of a single phase load is controlled via an external file element (ElmFile). Import the project, save the text file to the hard disk and select this file in…
There are two possibilities to work with user defined variables in a dynamic simulation: Using the option ’User Defined Signal’ included within the PltDataseries. This allows calculation of additional…
In the attached example a ramp modeled in DSL is used to reduce the turbine power pt from its initial value to zero. You also may use a similar block structure to impose a ramp on any other machine…
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If you want to simulate the synchronisation of two different systems, you can model and simulate both systems as separate networks. After some seconds you can then connect them with a circuit breaker…
In the attached example project the battery is connected to the grid using a PWM converter. The grid contains a synchronous machine which supplies a load. After the initialization the synchronous…
The attached example shows how an AC current source (ElmIac) is controlled during a RMS simulation. In the first study case the amplitude and the angle of all phases are equally controlled, requiring…
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There are several ways of modelling an SVC system: Using the SVS Interface in PowerFactory: A number of standard controls for SVS are available in the global library. There, you can also find…
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The attached example shows a small industrial grid where1. At 0 seconds the connection to the external grid is opened2. At 1 second the diesel unit is connected to the internal grid. Before it was…
Refer to the attached project. The options shown are: Direct start with star-delta switching: Parameter i_star = 1 (Star), i_star = 0 (Delta) Additional rotor resistance: signal rradd (can…
A simple moving average discrete time filter is provided for your reference. It can be used for both RMS and EMT type simulations. The register model (ElmReg) could be used to calculate a moving…