MATLAB SIMPOWERSYSTEMS 5 Manual do Utilizador descarregar pdf (Página 10)

Palestine Polytechnic University

Workshop Matlab/Simulink in Drives and Power electronics – Lecture 418-21 May 2009

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Thyristor

– The thyristor is a semiconductor device that can be turned on via a

gate signal. The thyristor model is simulated as a resistor Ron, an

inductor Lon, and a DC voltage source representing the forward

voltage Vf, connected in series with a switch.

The switch is controlled by a logical signal depending on the voltage

Vak, the current Iak, and the gate signal g.

– The Thyristor block also contains a series Rs-Cs snubber circuit that

can be connected in parallel with the thyristor device.

–

The static VI characteristic:

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