A Composite Approach of Sensorless Rotor Position Sensing for Brushless DC Motor

摘要：

　　The principles and characteristics of the sensorless brushless DC motor rotor position detection were analyzed by using inductive method and third harmonic back-EMF detection method.A composite rotor position detection method was proposed in full speed range (including zero speed).At zero speed (static state) inductive method was used to determine the initial rotor position,and it was bases of starting and controlling for the brushless DC motor; at low speed third harmonic back EMF detection method was used.Analysis shows that the composite test method can estimate the rotor position,and it is to achieve the position sensorless brushless DC motor to run a viable method.

关键词： brushless DC motor rotor position inductance method the third harmonic

作者: Qingshan Ji Hongyan Hao

作者单位: Electromechanical College of Zhejiang Ocean University, zhoushan, zhejiang, 316000, China

会议类型: 国际会议

会议名称: the 2011 International Conference on Frontiers of Manufacturing Science and Measuring Technology (第一届制造科学与检测技术国际会议(ICFMM2011))

会议地点: 重庆

会议语种:英文

页码: 877-883

在线出版日期: 2011-06-23（万方平台首次上网日期，不代表论文的发表时间）