Back-EMF Position Detection Technology for Brushless DC Motor

Abstract:

Without position sensor control technology of brushless DC motor has become the focus of many experts and scholars at home and abroad. The article presented research of without speed and position sensor control for brushless DC motor, including brushless DC motor mathematical model, Back-EMF detection principle and starting position detection method, and designed a hardware control system based dedicated digital signal processor (DSP). For experimental study of the system based experimental prototype had shown: this method can achieve no load starting, load starting and load operation of without position sensor brushless DC motor.

• Periodical: Applied Mechanics and Materials (Volume 492)
• Pages: 49-55
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.492.49
• Online since: January 2014
• Authors: Hong Xing Wu, Zhi Yuang Qi, Ji Gui Zheng, Shou Ming Zhou
• Keywords: Back-EMF, Brushless Dc Motor (BLDCM), Position Detection

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