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Applied Sciences
Volume 11
Issue 5
10.3390/app11052422
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Article

Improvement on Flux Weakening Control Strategy for Electric Vehicle Applications

by
Claudio Bianchini
*,
Giovanni Franceschini
and
Ambra Torreggiani
Department of Engineering (DIEF), University of Modena and Reggio Emilia, 41121 Modena, Italy
*
Author to whom correspondence should be addressed.
Appl. Sci. 2021, 11(5), 2422; https://doi.org/10.3390/app11052422
Submission received: 31 January 2021 / Revised: 3 March 2021 / Accepted: 4 March 2021 / Published: 9 March 2021
(This article belongs to the Special Issue Electric Powertrain Design for High Efficiency and High Speed Operation Range)
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Abstract

This paper proposes an optimized flux weakening (FW) control strategy for interior permanent-magnet synchronous electric motor to address the critical issues that could occur under torque setpoint transition in flux weakening region, due, for example, to an emergency braking. This situation is typical in electric vehicles where the electrical machines operate over a wide speed range to reach high power density and avoid gearboxes. Two modified traditional flux weakening strategies are proposed in this paper to improve torque control quality during high speed torque transition. The proposed modified control strategies were validated both by Matlab/Simulink simulations, modeling the power train of a light vehicle application, and extensive experimental tests on a dedicated test bench.
Keywords: interior permanent magnet synchronous electrical machine; electric vehicle; flux-weakening; torque control loop interior permanent magnet synchronous electrical machine; electric vehicle; flux-weakening; torque control loop

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MDPI and ACS Style

Bianchini, C.; Franceschini, G.; Torreggiani, A. Improvement on Flux Weakening Control Strategy for Electric Vehicle Applications. Appl. Sci. 2021, 11, 2422. https://doi.org/10.3390/app11052422

AMA Style

Bianchini C, Franceschini G, Torreggiani A. Improvement on Flux Weakening Control Strategy for Electric Vehicle Applications. Applied Sciences. 2021; 11(5):2422. https://doi.org/10.3390/app11052422

Chicago/Turabian Style

Bianchini, Claudio, Giovanni Franceschini, and Ambra Torreggiani. 2021. "Improvement on Flux Weakening Control Strategy for Electric Vehicle Applications" Applied Sciences 11, no. 5: 2422. https://doi.org/10.3390/app11052422

APA Style

Bianchini, C., Franceschini, G., & Torreggiani, A. (2021). Improvement on Flux Weakening Control Strategy for Electric Vehicle Applications. Applied Sciences, 11(5), 2422. https://doi.org/10.3390/app11052422

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