Novel rotor position extraction based on carrier frequency component method (CFCM) using two reference frames for IPM drives
Mengesha Mamo; Ide, K.; Sawamura, M.; Oyama, J.
Industrial Electronics, IEEE Transactions on
Volume 52, Issue 2, April 2005 Page(s): 508 - 514
Digital Object Identifier   10.1109/TIE.2005.844234
Summary: In this paper a novel interior permanent-magnet (IPM) motor's rotor position extraction method from the carrier-frequency component signal, derived from pulsewidth-modulated (PWM) inverter switching, using two reference frames is presented. This method has been utilized for IPM motor vector control without a mechanical rotor position detector, extracting rotor position angle from the switching carrier-frequency (10 kHz) component current. It is effective for IPM motors, which have magnetic saliency, sinusoidal distributed stator winding, and are supplied by a PWM voltage-source inverter. The performance of two IPM motors' vector control without mechanical rotor position detector utilizing this method has been investigated. Experimental results demonstrating good dynamic and steady-state performance achieved are presented and discussed.

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