Model selection method for six-phase synchronous motor external reactor for harmonic suppression

摘要: The invention relates to a model selection method for six-phase synchronous motor external reactor harmonic suppression. is technically characterized by comprising the following steps: step 1, calculating unified expression formula of switching frequency current pulses in various modulation manners wind turbine system; 2, performing comparative analysis obtain an optimal PWM (pulse-width modulation) strategy with minimum pulse value whole region; 3, open-loop adjustment according under condition that converter on side not connected externally, and temperature rise stator winding recorded; 4, recording voltage ratio m1 when heating amount heat conducting cooling system reaches balance; 5, substituting maximum mmax corresponding manner into solution resistor parameters externally resistor. guarantees safety operation power also realizes economy