电工技术学报2017，Vol.32Issue(19)：71-80,10.DOI:10.19595/j.cnki.1000-6753.tces.160655
无位置传感器无刷直流电机无硬件滤波转子位置检测方法
Research of Rotor Position Detection for Sensorless BLDCM without Hardware Filter Circuit
摘要
Abstract
A rotor position detection method based on the state of chip's registers and the features of freewheeling time when motor is commutating was presented for the sensorless control system of Brushless DC(BLDC) motors with no hardware filter circuit.The interference of PWM switching noise and the noise of freewheeling can be avoided by detecting the effective range of non-conducting phase's terminal voltage and delaying an appropriate time to avoid the noise of freewheeling.The method does not need the complex hardware filter and detection circuit,and it also does not need the complexalgorithms,so the method has advanced practicability.The theoretical derivation proves the correctness of the method,and the control results are given under different PWM duty cycles and loads in theexperiment,which confirms the validity of the presented method.关键词
无刷直流电机/无位置传感器/无硬件滤波/续流/转子位置/准确换相Key words
Brushless DC motor (BLDCM)/sensorless control/no hardware filter/freewheeling/rotor position/accurate commutation分类
信息技术与安全科学引用本文复制引用
王大方,于知杉,金毅,朱洪彪,王明玉..无位置传感器无刷直流电机无硬件滤波转子位置检测方法[J].电工技术学报,2017,32(19):71-80,10.基金项目
国家国际科技合作专项项目(2014DFB70120)、国家自然科学基金项目(51305457)、航天科学技术基金项目(2017-HT-HG-36)、山东省科技发展计划项目(2014GGX105002)和威海市科技发展计划项目(2014DXGJ02)资助. （2014DFB70120）
