Work

Reduced Common Mode Voltage PWM Strategy With Optimized Switching Sequence for Three Phase Motor Drives

Year: 2025

Type: article

Abstract: This paper proposes a pulse width modulation (PWM) switching sequence strategy aimed at minimizing common-mode voltage (CMV) in three-phase motor drive systems. CMV, originating from the charging and discharging of parasitic capacitances, can lead to issues such as electromagnetic interference (EMI) and premature bearing failure. While conventional reduced CMV-PWM (RCMV-PWM) techniques address these problems, they are limited by CMV spikes that diminish their effectiveness. This paper introduces an improved switching sequence that mitigates CMV spikes across all motor operating regions. The proposed method is developed by analyzing CMV variations and identifying the causes of spikes in active zero state PWM (AZSPWM) techniques. Its effectiveness is verified through both simulation and experimental validation against standard space vector PWM (SVPWM) and conventional AZSPWM.

Source: IEEE Access

DOI: 10.1109/access.2025.3625755

Authors: Suji Seo, Sehwan Kim, Hyeon-Jae Shin, Cheewoo Lee, Jae Suk Lee

Institutions: Jeonbuk National University, Korea Institute of Machinery & Materials, Korea Institute of Industrial Technology, Pusan National University

Language: English

Topic: Electromagnetic Compatibility and Noise Suppression

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,075

Funder: Korea Institute of Energy Technology Evaluation and Planning