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Method and apparatus for controlling permanent magnet synchronous motor by using pulse width modulation
Method and apparatus for controlling permanent magnet synchronous motor by using pulse width modulation
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机译:利用脉宽调制控制永磁同步电动机的方法和装置
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摘要
A method and apparatus for controlling a permanent magnet synchronous motor (M), wherein an inverter (4) is controlled in response to PWM signals (PA-PF) obtained by comparing a reference carrier wave (VA) with signals representing differences between armature winding current command signals (RTC, STC, TTC) of the respective phases and detected armature currents (IR, IS, IT).PPThe degree of saturation of the difference signals defined in association with a peak value of the reference carrier wave (VA) is detected. The phases of the current command signals (RTC, STC, TTC) are changed from those which provide an orthogonal relation between a resultant armature current and a main flux of a magnetic field.
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