MATLAB SIMPOWERSYSTEMS 5 Manual de usuario Pagina 10

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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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