상세정보
학술지
Sensorless Sine-Wave Controller IC for PM Brushless Motor Employing Automatic Lead-Angle Compensation
- 발행일
- 201512
- 출처
- ETRI Journal, v.37 no.6, pp.1165-1175
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 14PB1500, BLDC 모터용 고전압/대전류 파워모듈 및 ESD 기술개발, 양일석
- 초록
- This paper presents an advanced sensorless permanent magnet (PM) brushless motor controller integrated circuit (IC) employing an automatic lead-angle compensator. The proposed IC is composed of not only a sensorless sinewave motor controller but also an isolated gate-driver and current self-sensing circuit. The fabricated IC operates in sensorless mode using a position estimator based on a sliding mode observer and an open-loop start-up. For high efficiency PM brushless motor driving, an automatic leadangle control algorithm is employed, which improves the efficiency of a PM brushless motor system by tracking the minimum copper loss under various load and speed conditions. The fabricated IC is evaluated experimentally using a commercial 200 W PM brushless motor and power switches. The proposed IC is successfully operated without any additional sensors, and the proposed algorithm maintains the minimum current and maximum system efficiency under 0 N횂?줺 to 0.8 N횂?줺 load conditions. The proposed IC is a feasible sensorless speed controller for various applications with a wide range of load and speed conditions.
- KSP 제안 키워드
- Angle compensation, Controller IC, Integrated circuit, Load conditions, Maximum system efficiency, Minimum current, Motor Controller, Motor system, Power switch, Sensing circuit, Sine wave