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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…
The short-circuit current will not change in a simple, radial grid, no matter the impedance of the grid when fed only by a Full Size Converter (also fed by the External Grid which is needed to run the…
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Please refer to attached project file containing a simple discrete integrator implemented with Modelica Hybrid. The sampling is realised using the when statement in the hybrid model. The discrete…
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The attached project contains a QDSL model which models an automatic tap changer for a transformer with time-delayed tap changes. The permissible voltage band is formed using the input variables…
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The encrypt module can be applied using the Pack -> Macro button followed by the Encrypt button in the block definition basic data page. The Pack -> Macro option copies all equations to the block…
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In the attached example a counter is implemented in DSL using the event function. This function creates in this case a parameter event over the same DSL model every time the argument "yo" changes sign…
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A common application for BESS consists in replacing the spinning reserve/primary reserve in a power system. This application becomes significantly important in small or island power systems with…
PowerFactory offers intrinsic DSL 2-dimensional approximation functions: lapprox2 and sapprox2. The attached project contains two DSL models for these two functions. The DSL Models are stored inside…
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The slots in the standard frames are predefined slots for the different elements a synchronous machine controller may have, i.e., the voltage regulator, the power system stabilizer, etc. The names of…
Although both look very similar, there is an important difference between the Composite Model Frame and the DSL model type (block definition). The Composite Model Frame consists of slots and signals…
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