Position Sensorless Control Method of Two-three Conduction Brushless DC Motor Based on Line Back EMF

被引：0
|
作者：
Li, Zicheng [1 ]
Li, Hongrui [1 ]
Wang, Hou-Neng [1 ]
Xiong, Tao [1 ]
机构：
[1] Wuhan Inst Technol, Sch Elect & Informat Engn, Wuhan 430205, Peoples R China
来源：
PROCEEDINGS OF THE 33RD CHINESE CONTROL AND DECISION CONFERENCE (CCDC 2021) | 2021年
关键词：
Zero-Crossing of Line Back EMF; Two-three Conduction; Sensorless control; Brushless DC Motor; STRATEGY;
D O I：
10.1109/CCDC52312.2021.9601508
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
According to the mathematical model and the conduction mode of the brushless DC motor (BLDCM), a method to estimate the rotor position is presented, which is based on the conduction state of the corresponding power tube obtained by the rate of change of the non-commutative phase current combined with the zero-crossing of line back EMF. It is also applied to the sensorless control of the two-three conduction BLDCM. The brushless DC motor can run in no-load or load, low speed or high speed with this method, and the system uses the current inner loop and the speed outer loop to forma double closed-loop control, so that the motor runs more smoothly. The rotor position information of BLDCM under different conduction states is located. The simulation results are consistent with the theoretical analysis, which verifies the correctness and feasibility of the method.
引用
收藏
页码：7198 / 7203
页数：6
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