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브러시리스 직류 전동기용 새로운 센서리스 드라이브 개발에 관한 연구
박정배(Jung-Bae Park),장항제(Hang- Jea Chang),이용순(Yong-Soon Lee),유지윤(Ji-Yoon Yoo),이광운(Kwang-Woon Lee),여형기(Hyeong-Gee Yeo) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11
In this paper, we proposed a new sensorless drive system for the trapezoidal type brushless DC motor, which does not use any mechanical position or speed sensor and applicable to the systems requiring a constant speed and torque such as Fan.<br/> For this, a novel indirect rotor position sensing technique based on a detailed analysis of the terminal voltage characteristics is proposed in this paper. And a sensorless drive system for the brushless DC motor is implemented using a 87c196mc for the main microprocessor, and a power FET for the inverter.<br/> The experimental results will show the validity of the proposed indirect sensing method and the practical use of the sensorless drive.