MATLAB SIMPOWERSYSTEMS 5 Uživatelský manuál stáhnout pdf (Strana 9)

Palestine Polytechnic University

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

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Power Electronics Library: Diode

– The diode is a semiconductor device that is controlled by its own

voltage Vak and current Iak. When a diode is forward biased (Vak > 0),

it starts to conduct with a small forward voltage Vf across it. It turns

off when the current flow into the device becomes 0. When the diode

is reverse biased (Vak < 0), it stays in the off state.

– The Diode block is simulated by a resistor, an inductor, and a DC

voltage source connected in series with a switch. The switch operation

is controlled by the voltage Vak and the current Iak.

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MATLAB SIMPOWERSYSTEMS 5 Uživatelský manuál Strana 9