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http://dx.doi.org/10.7471/ikeee.2022.26.4.653

MTPA control algorithm for an IPMSM drive reflecting the PM flux linkage variation  

Sungmin, Choi (Dept. of Electrical Engineering, Jeonbuk National University)
Seong-ho, Ryu (BT Telecom)
Jae Suk, Lee (Dept. of Electrical Engineering, Jeonbuk National University)
Publication Information
Journal of IKEEE / v.26, no.4, 2022 , pp. 653-658 More about this Journal
Abstract
This paper presents a Maximum Torque per Ampere (MTPA) control algorithm for an interior permanent magnet synchronous motor (IPMSM) drive considering the permanent magnet (PM) flux linkage variations due to PM temperature variation. PM flux linkage are estimated in real time via a Gopinath style stator flux linkage observer and a torque error correction factor is calculated from the estimated PM flux linkage. A 2-dimensional (2D) MTPA look-up table (LUT) is developed to achieve the MTPA trajectory reflecting PM flux linkage variation for compensating torque error occurred by parameter variation. The proposed IPMSM control algorithm is verified through simulations.
Keywords
PMSM drive; MTPA; PM flux linkage; Flux observer; Torque error;
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