Braking Torque Closed-Loop Control of Switched Reluctance Machines for Electric Vehicles

He Cheng; Hao Chen; Zhou Yang; Weilong Huang

Braking Torque Closed-Loop Control of Switched Reluctance Machines for Electric Vehicles

Vol. 15, No. 2, pp. 469-478, Mar. 2015

10.6113/JPE.2015.15.2.469

Braking energy feedback

Braking torque control

Electric Vehicles (EVs)

Switched Reluctance Machine (SRM)

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Abstract

In order to promote the application of switched reluctance machines (SRM) in electric vehicles (EVs), the braking torqueclosed-loop control of a SRM is proposed. A hysteresis current regulator with the soft chopping mode is employed to reduce theswitching frequency and switching loss. A torque estimator is designed to estimate the braking torque online and to achievebraking torque feedback. A feed-forward plus saturation compensation torque regulator is designed to decrease the dynamicresponse time and to improve the steady-state accuracy of the braking torque. The turn-on and turn-off angles are optimized by agenetic algorithm (GA) to reduce the braking torque ripple and to improve the braking energy feedback efficiency. Finally, asimulation model and an experimental platform are built. The simulation and experimental results demonstrate the correctness ofthe proposed control strategy.

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Cite this article

[IEEE Style]

H. Cheng, H. Chen, Z. Yang, W. Huang, "Braking Torque Closed-Loop Control of Switched Reluctance Machines for Electric Vehicles," Journal of Power Electronics, vol. 15, no. 2, pp. 469-478, 2015. DOI: 10.6113/JPE.2015.15.2.469.

[ACM Style]

He Cheng, Hao Chen, Zhou Yang, and Weilong Huang. 2015. Braking Torque Closed-Loop Control of Switched Reluctance Machines for Electric Vehicles. Journal of Power Electronics, 15, 2, (2015), 469-478. DOI: 10.6113/JPE.2015.15.2.469.