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http://dx.doi.org/10.5370/KIEE.2011.60.10.1858

Control Techniques of Sensorless BLDC Motor Drive for a Vehicle Fuel Pump Application  

Tran, Quang-Vinh (베트남 ENLEKA사)
Chun, Tae-Won (울산대 공대 전기공학부)
Lee, Hong-Hee (울산대 공대 전기공학부)
Kim, Heung-Geun (경북대 IT대학 전기공학과)
Nho, Eui-Cheol (부경대 공대 전기공학과)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.60, no.10, 2011 , pp. 1858-1864 More about this Journal
Abstract
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.
Keywords
BLDC (Brushless DC) motor; Sensorless technique; Rotor position alignment; Fuel pump;
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