Research on the Starting Method of Constant Frequency and Increasing Voltage to Improving the Reliability of Sensorless Starting of Brushless DC Motor
Based on back EMF without position sensor control strategy, The motor speed is zero or low speed cannot accurately detect the back EMF, it cannot determine the position of the rotor.In this case, a specific method is required to achieve the motor start up.On the basis of analyzing the traditional start mode without position sensor control strategy, A pure software constant frequency and increasing voltage starting method is proposed for the sensorless control strategy of the electric bicycle, and the specific implementation scheme is given.Compared with the traditional raising frequency raising voltage method, Omit the rotor pre-setting process, The reverse phenomenon of motor starting is avoided.Improve the ability of motor with load starting.And the hardware circuit of the traditional raising frequency raising voltage method is omitted;the complexity of the motor control system is reduced.Improve the reliability of motor starting.
brushless DC motor sensorless control the reversing point
Changchun Chi Hongsong Liu Tengfei Lv Zhuoheng Li
School of electrical engineering Shanghai DianJi University, Shanghai, 201306, China
国际会议
江苏常熟
英文
206-212
2017-04-18（万方平台首次上网日期，不代表论文的发表时间）