access icon free Shunt semi-active power factor correction circuit for permanent magnet synchronous motor driver

© The Institution of Engineering and Technology
Received 14/09/2013, Accepted 11/04/2014, Revised 16/03/2014, Published 05/08/2014

This study developed a shunt-based, semi-active power factor correction (PFC) circuit for a sensor-less speed controller applicable in permanent magnet synchronous motors (PMSM). The objective of this novel approach is to increase the PF of the control circuit in order to improve the effectiveness of controlling the speed of the motor. The proposed circuit includes two parallel rectifiers capable of providing good PFC while maintaining simplicity. This study discusses the relevant theories, introduces the components and provides a simulation of the system. Experimental results, involving a sensor-less PMSM rotary compressor for an air conditioning unit, demonstrate the efficacy of the proposed device over a wide range of speeds and duty times. The performance was further compared with two other circuits, the results of which prove that this system accomplished the objectives of the study.

Inspec keywords: angular velocity control; power factor correction; permanent magnet motors; synchronous motor drives; sensorless machine control

Other keywords: PMSM; sensorless speed controller; sensorless PMSM rotary compressor; air conditioning unit; PFC circuit; permanent magnet synchronous motor driver; shunt semiactive power factor correction circuit

Subjects: Synchronous machines; Velocity, acceleration and rotation control; Drives; Control of electric power systems

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