Title :
Sensorless drive for interior permanent magnet brushless DC motors
Author :
Hyeong-Gee Yee ; Hong, Chang-Seok ; Yoo, Ji-Yoon ; Jang, Hyeon-Gil ; Bae, Yeong-Don ; Park, Yoon-Seo
Author_Institution :
Dept. of Electr. Eng., Korea Univ., Seoul, South Korea
Abstract :
This paper describes a position drive for the interior permanent magnet (IPM) brushless DC motors. A new indirect sensing method is proposed which can be applicable for the IPM machines of which the winding inductances vary according to the rotor position. Experimental results form a prototype brushless DC motor built in a compressor of an air conditioner confirm the validity of the sensorless drive from 500 to 7500 rpm
Keywords :
DC motor drives; air conditioning; brushless DC motors; compressors; inductance; permanent magnet motors; rotors; air conditioner compressor; indirect sensing method; interior permanent magnet brushless DC motors; rotor position; sensorless drive; winding inductances; Brushless DC motors; Commutation; DC motors; Magnetic separation; Permanent magnet motors; Prototypes; Pulse width modulation; Pulse width modulation inverters; Rotors; Voltage;
Conference_Titel :
Electric Machines and Drives Conference Record, 1997. IEEE International
Conference_Location :
Milwaukee, WI
Print_ISBN :
0-7803-3946-0
DOI :
10.1109/IEMDC.1997.604275
