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Performance Enhancement of Direct Torque-Controlled Permanent Magnet Synchronous Motor with a Flexible Switching Table

1
Key Laboratory of More Electric Aircraft Technology of Zhejiang Province, University of Nottingham Ningbo China, Ningbo 315100, China
2
PEMC Group, University of Nottingham, Nottingham NG7 2RD, UK
*
Author to whom correspondence should be addressed.
Energies 2020, 13(8), 1907; https://doi.org/10.3390/en13081907
Received: 7 March 2020 / Revised: 2 April 2020 / Accepted: 8 April 2020 / Published: 14 April 2020
(This article belongs to the Section Electrical Power and Energy System)
In this paper, a flexible switching table (FST) for direct torque control (DTC) of permanent magnet synchronous motors (PMSMs) was proposed to enhance the steady-state and dynamic performances of the drive system. First, the influence of each converter output voltage vectors on the torque and stator flux deviation rates was analyzed to assess the voltage selection strategies of the conventional STs and their impact on the DTC system’s performance. Then, a new flexible ST was proposed which uses a simple algorithm to adaptively select the appropriate voltage vector for two of its states according to the system operating condition. The effectiveness and feasibility of the proposed FST were verified through a comparative evaluation with the conventional STs using experimental results obtained from a 0.75 kW PMSM drive system. View Full-Text
Keywords: direct torque control (DTC); permanent magnet synchronous motor (PMSM); voltage vector selection; switching table (ST) direct torque control (DTC); permanent magnet synchronous motor (PMSM); voltage vector selection; switching table (ST)
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MDPI and ACS Style

Nasr, A.; Gu, C.; Bozhko, S.; Gerada, C. Performance Enhancement of Direct Torque-Controlled Permanent Magnet Synchronous Motor with a Flexible Switching Table. Energies 2020, 13, 1907. https://doi.org/10.3390/en13081907

AMA Style

Nasr A, Gu C, Bozhko S, Gerada C. Performance Enhancement of Direct Torque-Controlled Permanent Magnet Synchronous Motor with a Flexible Switching Table. Energies. 2020; 13(8):1907. https://doi.org/10.3390/en13081907

Chicago/Turabian Style

Nasr, Ahmed; Gu, Chunyang; Bozhko, Serhiy; Gerada, Chris. 2020. "Performance Enhancement of Direct Torque-Controlled Permanent Magnet Synchronous Motor with a Flexible Switching Table" Energies 13, no. 8: 1907. https://doi.org/10.3390/en13081907

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