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DSL (DIgSILENT Simulation Language) is a very powerful possibility for modelling time continuous controls and processes. But modelling discrete controls rises some problems. There is on one hand the…
There are three ways of modelling an SVC system: Using the SVS Interface in PowerFactory. There are a number of standard controls for SVS in the library that can be used. You will also find two…
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…
Refer to the attached example. In order to understand the interface of the controller with the transformer, the following information needs to be considered: Based on the fact that we consider a…
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…
The Matlab Simulink - PowerFactory simulation interface is described in detail in the User Manual, Chapter "Models For Dynamic Simulations", Section "Matlab Interface". A simple Simulink Model…
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…
There are two possibilities to work with user defined variables in a dynamic simulation: 1. Using the option ’User Defined Signal’ included within the VisPlot. This allows calculation of additional…
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…
For RMS simulations the load type has to be set to 100% dynamic load, this means constant impedance Z. Additionally in the RMS dialogue of the load type the voltage dependency of P and Q can be set.…