Control method for pwm power converter
专利汇可以提供Control method for pwm power converter专利检索，专利查询，专利分析的服务。并且PURPOSE: To miniaturize a power filter by providing a series resonance circuit absorbing a ripple current accompanying PWM control, between lines on the AC power supply side of a PWM power converter.
CONSTITUTION: A three-phase AC power supply 1 is connected via reactors 2, 3 with a PWM converter 4, which converter 4 supplies a load 6 with DC power going via a smoothing capacitor 5. Also, a series resonance circuit 9 composed of a reactor 7 and a capacitor 8 is provided between said reactors 2, 3. The control of said converter 4 is formed by a voltage command circuit 10, a voltage sensor 11, a voltage regulator 12, a power-factor regulator 14, a current regulator 16, a comparator 17, a filter circuit 19, a tracking control circuit 20, an oscillator 21 and a driver 22. Further, the resonance frequency of said series resonance circuit 9 and the ripple frequency of AC power current coincide with each other and said ripple current is absorbed by resonance current. As a result, it is possible to miniaturize a power filter on the AC power supply side.
COPYRIGHT: (C)1990,JPO&Japio，下面是Control method for pwm power converter专利的具体信息内容。
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