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Topic: Dynamic Model of a Synchronous Generator
Replies: 15   Last Post: Nov 20, 2013 12:24 PM

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Frank W.

Posts: 48
Registered: 11/9/09
Re: Dynamic Model of a Synchronous Generator
Posted: Nov 16, 2009 4:52 AM
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Hello,

<Anyway I also want to know if the process of Synchronisation can be simulated here. When the Generator operates in Island operation, its not yet conencted to grid. When the synchrnonization takes place, load flow happens. Is it possible we simulate both Island operation and operation with grid using the same model?>

This should be possible. The crucial part will be setting the conditions of the grid and the island prior to breaker closure. The Block Parameters Dialog of the synchronous machine model allows specifying the intial condtions of the synchronous machine (vector 'Init. cond.'). So I would first perform a load flow with the 'powergui' block with the breaker between grid and plant open. This will set the initial conditions in your model on grid and plant side of your model (Especially when you have a plant load attached to the generator this is the easiest way to set the mechanical power input 'Pm' of the machine correctly). You can then change the phase angles ('pha,phb,phc(deg)') of your plant generator to the desired value and start simulation with the breaker closing shortly after simulation start.

Kind regards
Frank



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