无刷直流电机无传感器控制技术专利综述

Patent Overview on Sensorless Control Technologyof Brushless DC Motors

无传感器技术是用于获取无刷直流电机转子位置的控制方法,在国内外无刷直流电机控制技术中应用较为广泛,尤其体现在与无刷直流电机控制相关的专利申请中。现从无刷直流电机无位置传感器控制技术国内外历年申请趋势、地域分布、申请人分布、技术分支等角度对涉及无刷直流电机无传感器控制技术的专利情况进行了综述。

The sensorless technology is a control method of obtaining the rotor position of brushless DC motors,which is widely used in brushless DC motor control both domestically and internationally,especially in patent applications related to brushless DC motor control.This paper provides an overview of the patent situation related to sensorless control technology for brushless DC motors at home and abroad from the perspectives of application trends,regional distribution,applicant distribution and technical branches over the years.