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자동차 연료펌프용 BLDC 전동기구동의 센서리스 제어기법
트란콴빈(Quang-Vinh Tran),전태원(Tae-Won Chun),이홍희(Hong-Hee Lee),김흥근(Heung-Geun Kim),노의철(Eui-Cheol Nho) 대한전기학회 2011 전기학회논문지 Vol.60 No.10
This paper suggests a control technique of the sensorless brushless DC (BLDC) motor drive for a vehicle fuel pump application. The sensorless technique based on a comparator and a potential start-up method with high starting torque are proposed. The comparator is used to generate the commutation signals in phase with the three-phase back-EMFs. The rotor position is aligned at standstill for maximum starting torque without an additional sensor and any information of motor parameters. Also, the stator current can be easily adjusted by modulating the pulse width of the switching devices during alignment. Some experiments are implemented on a single chip 16-bit DSP controller to demonstrate the feasibility of the sensorless techniques.