Speed estimation with saliency of synchronous reluctance motor

Issue title: Selected Papers from the 13th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2007)

Article type: Research Article

Authors: Ahn, Joonseon^a | Choi, Jae-Hak^b | Go, Sung Chul^f | Kim, Sol^{d; *} | Kim, Yun-Hyun^e | Choi, Jae-Hoon^c | Lee, Ju^f

Affiliations: [a] Department of Electrical Engineering, Osan College, Osan-si, Gyeonggi-do, 447-749, Korea | [b] Korea Electrotechnology Research Institute, Changwon-si, Korea | [c] Department of Electronics and Computer Engineering, Hanyang University, Seoul, Korea | [d] Department of Electrical Engineering, Yuhan College, Buchon-si, Korea | [e] Department of Electrical Engineering, Hanbat Nat'l University, Daejeon, Korea | [f] Department of Electrical Engineering, Hanyang University, Seoul, Korea

Correspondence: [*] Corresponding author. Tel.: +82 2 2610 0733; Fax: +82 2 2179 9733; E-mail: slamsol@yuhan.ac.kr

Abstract: This paper presents a sensorless algorithm of the synchronous reluctance motor(SynRM). Conventionally flux estimation method using phase voltage integration has problem in low speed operation. This is due to insufficient terminal voltage in that speed. However in high speed operation, it is enough to estimate rotor flux. Therefore in this paper the current model which uses phase current signal is proposed to compensate the insufficiency of terminal voltage in low speed to estimate rotor position. Computer simulations are performed to confirm the adequacy of the proposed control scheme. The experiments are also performed for verification of proposed algorithm.

Keywords: Synchronous reluctance motor, SynRM, sensorless control, flux estimation

DOI: 10.3233/JAE-2008-983

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 28, no. 1-2, pp. 255-266, 2008