.OpenIPSL.Electrical.Controls.PSSE.TG.GGOV1

Information

The following documentation is adapted from [PSSE-Models], chapter 7.12:

This is a general purpose Governor/Turbine model that can be used in dynamic studies. The model can be used to represent many different models such as gas turbines, aeroderivative turbines and diesel engines. This model represents the usual PSSE implementation of the GGOV1 and a fairly complete review of this model can be found in [IEEE2013].

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This model is incredibly versatile and can be used to represent different turbine models with different control modes. The Governor-Turbine frequency control, for example, can have different feedback signals, such as electric power, turbine output, valve stroke or even an isochronous operation. Isochronous operations are used when the machine operates in an isolated system. Note that, in this case, the permanent droop parameter R should be set to zero. In addition to that, the parameters can be set so a particular control loop is used. This model allows the representation of a frequency control system, a temperature control system and an acceleration limiter control system.

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In order to represent a diesel generator using this model, one should be careful with setting some parameters. For example, a diesel generator needs to have flag set to 1. This is because the diesel generator have teir fluid flow proportional on the speed. In addition to that, Teng, which represents the time delay from the engine, should be set to a number greater than 0. Finally, the variable Dm should also be set to a number greater than 0. This is because in diesel engines, the maximum power output decreases as speed increases.

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