Abstract:The inclusion of the latest generation of semiconductor switches in today’s wind farms allows high-frequency pulse width modulation. When the cable that connects the power inverter to the rotor of a doubly fed induction generator is long, the impedance mismatch between it and the rotor leads to overvoltage spikes at the terminals of this last. Such high voltage would cause the deterioration of the rotor winding or the cable insolation. For this reason, it is mandatory to solve this problem. Active and passive … Show more
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