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

doi:10.1109/iemdc55163.2023.10239058

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

Authors

TABISH MIR Tabish.Mir@nottingham.ac.uk
Assistant Professor

Xu Deng

Barrie Mecrow

Daniel Smith

Mingfei Wu

Sana Ullah

Muhammad Ikhlaq

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.

Conference Name	2023 IEEE International Electric Machines & Drives Conference (IEMDC)
Conference Location	San Francisco, CA, USA
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
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