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One time radial vibration, mostly caused by rotary eccentric load, may reduce the reliability and operating life of motors. In order to mitigate the one time radial vibration in permanent magnet motors, a real time detection method for rotary eccentric load based on the theoretical analysis of the motor vibration and the mechanical analysis was given, and a novel control strategy based on FOC (field...
An analysis of multiple-frequency IGBT high frequency induction heating inverter is presented. By comparing the work status in different frequency ratio, it finds the best way of power regulation that is to keep the circuit working in the discontinuous mode. After specific analysis of this mode, the relationship between DC and AC load equivalent resistance and the circuit parameters selection strategy...
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