Research of Sensorless Drive of Permanent Magnet Synchronous Motor Based on Power Factor Control

Abstract:

For the traditional sensorless vector control systems of permanent magnet synchronous motor, a new sensorless vector control method is proposed based on the power factor control. On the basis of analysis of the mathematical models for the permanent magnet synchronous motor, established a power factor voltage reference frame system. The rotor position and speed is estimated by the control of power factor angle, and then from the point of view of efficiency drive to configure the stator current. This stator current is arranged in the vicinity of the current minimum trajectory. This method not only can control the speed, but also ensure high power factor and high drive efficiency of the permanent magnet synchronous motor. The simulation results proved the effectiveness and feasibility of this control method.

• Periodical: Advanced Materials Research (Volumes 655-657)
• Pages: 1169-1174
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.655-657.1169
• Online since: January 2013
• Authors: Bing Han, Jian Ying Xu, Shan Qiao
• Keywords: Efficiency Drive, Permanent Magnet Synchronous Motor, Power Factor Control, Sensorless Vector Control

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