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The attached project contains a DPL script located in the Scripts library. The script performs the following tasks: - Execute the "Calculation of Initial Conditions" and "Run Simulation" commands. -…
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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To change the tap position of a 3-winding transformer during a simulation define a parameter event (EvtParam) using the appropriate variable: nntap_int_h which corresponds to the tap-position HV side.…
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To simulate a load event, you have to use the EvtLod. The load event works as follows: 1. Incremental change: Certain percentage of current value, P = P + P*dP/100 (same for Q) 2. Absolute change:…
The example attached includes a measurement file drive in a 3-phase load. Import the project, save the data file loadmeas.txt to the hard disk and select this file in the measurement file object of…
In the attached example a random signal is generated using the sample and hold noise generator (ElmNoise) within a DSL model. The generated random signal is defined to change every 1/Frequency…
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 ’Processed and aggregated results’ included within the PltDataseries. This allows calculation…
Refer to the 2 example projects: The first example 'EvtSwitchExt' shows, how to call a switch event (EvtSwitch) out of a DSL model (general model). In this example the switch events are predefinided…
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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