Experimental investigation of conducted electromagnetic interference differential-mode performance in various split-phase induction motors designs
Houcine Miloudi, Mohamed Miloudi, Sid Ahmed El Mehdi Ardjoun, Amro A. Nour, Ibrahim Mahariq
Abstract
• The study investigates differential-mode Electromagnetic Interference in various Split-Phase Induction Motor designs, focusing on High-Frequency properties. • This research offers innovative strategies for addressing Electromagnetic Compatibility challenges in industrial environments. • The study identifies critical High-Frequency characteristics of Split-Phase Induction Motor s within the Electromagnetic Interference frequency range of 150 kHz to 30 MHz through experimental analysis. • The findings contribute to optimizing motor performance while ensuring compliance with global Electromagnetic Compatibility standards. • The results have significant implications for selecting suitable Split-Phase Induction Motor designs for critical Electromagnetic Compatibility applications in variable speed drive systems. In industrial environments, motors in variable speed drive (ASD) systems act as primary conduits for the propagation of conducted electromagnetic disturbances, including differential mode (DM). The Split-Phase Induction Motor (SPIM) is among the most widely used motors in ASD systems, making the analysis of its impedances and High-Frequency (HF) properties crucial for ensuring Electromagnetic Compatibility (EMC) and mitigating Electromagnetic Interference (EMI). Poor EMC management can result in malfunctions of nearby electronic devices.This article examines the DM current propagation paths in two motor types. The investigation aims to: (i) Identify the HF characteristics of these motors within the critical frequency range for conducted EMI (150 kHz – 30 MHz), (ii) Assess key EMC performance indicators, focusing on the windings of the main and auxiliary phases, and (iii) Compare the EMC performance of different SPIM designs through experimental analysis to select the most suitable motors for critical EMC applications. This approach not only addresses EMC challenges but also optimizes motor performance and ensures regulatory compliance in electrical systems where these motors play a crucial role.