Electromagnetic Compatibility and Noise Mitigation in Modern Power Electronics

Abstract

The rapid development of Power Electronic Technologies across a broad range of applications (including renewable energy systems, electric vehicles, industrial automation, aerospace platforms and smart grid solutions) has made significant improvements in energy conversion efficiency, power density and syste However, due to the high frequency and usage of switching devices as well as their miniaturization in converter topologies for EMI/EMC issues have become important more recently. Operation of power electronic converters gives rise to electromagnetic interference (EMI) with those propagating via conductive and radiative paths, which results in degradation of performance and reliability, or even safety issues for electronic circuits operating in parallel with them. Thus, EMC became an integral design consideration in today's power electronic systems. This paper reviews the important EMC issues and noise reduction methods relating to power electronics in detail. This paper summarizes the analysis of major sources of EMI, such as switching devices, passive integrated circuits (IC), gate driver circuits, and parasitic elements through studying conducted and radiated emissions mechanisms. Design Methodologies for EMC are Reviewed. In this section extent multiple design methodologies regarding filter techniques, shield handiness, grounding practices, and PCB floor optimization. It also provides an overview of international EMC standards and regulatory guidelines on electromagnetic emission and immunity tests. It also investigates the impact of EMC, operational safety, and reliability system performance. Finally, it discusses the recent developments on the new trend in wide-bandgap semiconductor technologies, multi-dimensional filtering methodology, and intelligent EMC optimization methodologies. Results emphasise the importance of EMC consideration in all phases of the design process for achieving high-performance, reliable, and compliant power electronic systems.