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The attached example (WindCpLambda.pfd) visualises the aerodynamic efficiency cp of the wind turbine, which can be found in the DFIG (doubly fed induction generator) template. Here the cp-lambda…
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The consideration of current displacement effects is only important if the complete speed-torque range of an induction machine is of interest, which is usually the case if a motor start-up is…
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All parameters are referred to the stator, also the rotor impedances. In many data sheets, you find R2’ and X2’ being the rotor resistance and reactance in Ohm referred to the stator. In this case,…
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A doubly-fed induction machine (DFIG) can operate as a generator with positive and negative slip values. A positive slip value corresponds to motor operation of a normal induction machine.…
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In the attached example (PhotovBattery.pfd ) two explicit modelling approaches are shown. The models we recommend for PowerFactory simulations are very similar to each other. The PV generator consists…
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This value is an alternative input for the synchronous reactance. It is the permanent short circuit current in case of rated IEC conditions (1.1*Un subtransient voltage) and a direct short circuit at…
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With these parameters you can specify a frequency characteristic for r and l” (subtransient inductance) for considering skin effect and the variation of the internal inductance. Relevant for harmonics…
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This flag indicates if the machine reactance should be calculated using all transient parameters (xdss, xds, xd, Tdss, Tds), or if just the subtransient reactance should be used for harmonics. There…
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This can be modelled using an external tap controller or a master-slave mode. First of all, both transformers shall have a type which includes settings for the tap changer. In addition, the load-flow…
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Attached you can find an example how to model a line type with 5 wires. The example includes one grid with a 4 wire line type and a separate PE line type, and another grid where the PE line type is…
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