Correction Method of Reference Flux for Maximum Torque per Ampere Control in Direct-Torque-Controlled IPMSM Drives

In this paper, a maximum torque per ampere (MTPA) control strategy for direct-torque-controlled interior permanent magnet synchronous motor (IPMSM) drives is proposed. For current-controlled IPMSM drives, many methods have been proposed, in which the periodic signals are injected into reference curr...

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Bibliographic Details
Published in:IEEJ JOURNAL OF INDUSTRY APPLICATIONS 2017, Vol.6 (1), p.12-18
Main Authors: Shinohara, Atsushi, Inoue, Yukinori, Morimoto, Shigeo, Sanada, Masayuki
Format: Article
Language:English
Subjects:
Computer simulation
Flux
Optimization
Permanent magnets
Stators
Strategy
Synchronous motors
Torque
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Summary:In this paper, a maximum torque per ampere (MTPA) control strategy for direct-torque-controlled interior permanent magnet synchronous motor (IPMSM) drives is proposed. For current-controlled IPMSM drives, many methods have been proposed, in which the periodic signals are injected into reference current vectors. On the other hand, the direct-torque-controlled IPMSM drives require the torque and stator flux linkage magnitude as their references. The proposed method injects signals into the reference flux in a manner similar to that used for the signal injections in current-controlled IPMSM drives. The main feature of the proposed method is the ability to search the optimal current directly and successively using a local search algorithm. Therefore, variations in the parameters can be considered. The simulation and experimental results validate the proposed method.
ISSN:2187-1094
2187-1108
DOI:10.1541/ieejjia.6.12