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has been cited by the following article:

• TITLE: Design of Drive System for Sensorless Brushless DC Motor Based on Model Reference Adaptive Control and Its Application in Horizontal Well Tractor

  AUTHORS: Zhou He, Yongjun Chen, Bo Ruan, Shuhan Yu, Junwen Zhou

  KEYWORDS: Horizontal Well Tractor, Brushless DC Motor (BLDCM), Position Sensorless, Model Reference Adaptive Control (MRAC)

  JOURNAL NAME: Open Access Library Journal, Vol.5 No.2, February 9, 2018

  ABSTRACT: The actual working environment temperature of the horizontal well tractor is too high, which leads to position sensor of general brushless DC motor (BLDCM) cannot work normally. Therefore, the position sensorless drive system is designed to overcome the problems caused by the position sensor in the actual working conditions. The principle of sensorless BLDCM work is introduced in detail, And drive system of Sensorless BLDCM was established by using simulation software. The use of three stage start make motor smoothly start, the motor speed detection based on model reference adaptive control (MRAC), ensures accurate commutation. Finally, the hardware and software design of the BLDCM system based on digital signal controller (DSC) is introduced and tested. The experimental results show that the drive system can start the BLDCM smoothly in the high temperature environment, and can quickly track the given speed, which meet the actual work demand of the horizontal well tractor.