Adaptive Hysteresis Current Control For Improved EMI Performance in Fast Switching Motor Drives

Mir, Tabish Nazir; Deng, Xu; Mecrow, Barrie; Smith, Daniel; Wu, Mingfei; Ullah, Sana; Ikhlaq, Muhammad

Abstract

Electromagnetic interference (EMI) in pulse width modulated converters is exacerbated through carrier based modulation techniques that are associated with sharp spectral peaks around multiples of the switching frequency. As a mitigation measure, spread spectrum techniques are used, that distribute the carrier spectral energy over a certain frequency range to attenuate the EMI spectrum. This paper presents an alternative implementation of spread spectrum modulation through adaptive hysteresis bands, that regulate the moving average of switching frequency in a current controlled permanent magnet synchronous motor drive. Simulation results are presented through a comparison of input EMI and common mode voltage spectra for different modulation techniques. The proposed method demonstrates notable attenuation of spectral peaks when compared to carrier based modulation, while simultaneously overcoming large switching frequency deviations that are otherwise prevalent in classical hysteresis current control.

Citation

Mir, T. N., Deng, X., Mecrow, B., Smith, D., Wu, M., Ullah, S., & Ikhlaq, M. (2023, May). Adaptive Hysteresis Current Control For Improved EMI Performance in Fast Switching Motor Drives. Presented at 2023 IEEE International Electric Machines & Drives Conference (IEMDC), San Francisco, CA, USA

• Presentation Conference Type: Edited Proceedings
• Conference Name: 2023 IEEE International Electric Machines & Drives Conference (IEMDC)
• Start Date: May 15, 2023
• End Date: May 18, 2023
• Acceptance Date: May 25, 2023
• Online Publication Date: Sep 6, 2023
• Publication Date: May 15, 2023
• Deposit Date: Oct 10, 2023
• Publicly Available Date: May 21, 2024
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Pages: 1-6
• Book Title: 2023 IEEE International Electric Machines & Drives Conference (IEMDC)
• ISBN: 979-8-3503-9900-4
• DOI: https://doi.org/10.1109/iemdc55163.2023.10239058
• Keywords: Current control, Motor drives, Voltage measurement, Switching frequency, Electromagnetic interference , Switches
• Public URL: https://nottingham-repository.worktribe.com/output/25806145
• Publisher URL: https://ieeexplore.ieee.org/document/10239058