Review and Classification of MTPA Control Algorithms for Synchronous Motors

This article discusses the maximum torque per ampere (MTPA) control of synchronous motors, which have become an indispensable part of highly efficient motor drives. It explains the nature of torque produced by synchronous motors, ways to find its maximum and algorithms to operate at this point, desp...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2022-04, Vol.37 (4), p.3990-4007
Main Authors: Dianov, Anton, Tinazzi, Fabio, Calligaro, Sandro, Bolognani, Silverio
Format: Article
Language:English
Subjects:
Algorithms
Classification
Control algorithms
Energy efficiency
Induction motors
Magnetic flux
permanent magnet (PM) motors
Permanent magnet motors
Reluctance motors
Rotors
Synchronous motors
Torque
torque control
Traction motors
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Summary:This article discusses the maximum torque per ampere (MTPA) control of synchronous motors, which have become an indispensable part of highly efficient motor drives. It explains the nature of torque produced by synchronous motors, ways to find its maximum and algorithms to operate at this point, despite changes of loads and motor parameter variations. The authors propose a classification of the MTPA methods, based on the features of each algorithm or group of similar methods. They demonstrate the conventional control scheme and discuss the modifications necessary for the implementation of each method. This article reviews existing MTPA control algorithms, discusses their pros and cons, and suggests possible areas of usage for each group of methods. The authors of the article share their vast experience in the industry and research aspects, which were obtained by developing industrial, commercial, traction, and military drives, and report on their views on the perspective of each method taken into consideration.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2021.3123062