Scholarlink

<p>Delta-winding brushless DC (BLDC) motors are advantageous for operations requiring high torque and speed. However, the application of conventional sensorless methods, such as those using zero-crossing point of the back-EMF detection, to the delta-winding BLDC motor is difficult because the delta-winding motors have a different characteristic in back electromotive force (EMF) from star-winding BLDC motors. Accordingly, this work proposes a sensorless control method that utilizes a double second-order generalized integrator phase locked loop with back-EMF estimation based on a state observer for the delta-winding BLDC motors. From the estimated back-EMF, a positive sequence sinusoidal back-EMF can be obtained and used to estimate the exact position of the rotor. The effectiveness of the proposed sensorless control method is verified through experimental results.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Sensorless control method of a delta winding brushless DC motor using a state observer

  • 期刊论文

  • 发表日期：

    2025年1月15日

查看全文
  • Yung-Deug Son,
  • Hyeong-Jin Kim,
  • Jang-Mok Kim

摘要

Delta-winding brushless DC (BLDC) motors are advantageous for operations requiring high torque and speed. However, the application of conventional sensorless methods, such as those using zero-crossing point of the back-EMF detection, to the delta-winding BLDC motor is difficult because the delta-winding motors have a different characteristic in back electromotive force (EMF) from star-winding BLDC motors. Accordingly, this work proposes a sensorless control method that utilizes a double second-order generalized integrator phase locked loop with back-EMF estimation based on a state observer for the delta-winding BLDC motors. From the estimated back-EMF, a positive sequence sinusoidal back-EMF can be obtained and used to estimate the exact position of the rotor. The effectiveness of the proposed sensorless control method is verified through experimental results.