Advances in Modeling and Suppression Methods of EMI in Power Electronic Converters of Third-Generation Semiconductor Devices

Abstract

With the development of high-frequency, miniaturized, and lightweight power electronic devices, third-generation semiconductor devices are more and more used in the main circuits of power electronic converters. The electromagnetic interference (EMI) generated by their fast switching can affect the performance of power electronic converters. Therefore, it is necessary to investigate the modeling and suppression methods of conducted noise in power electronic converters of third-generation semiconductor devices. This paper describes the EMI sources and coupling paths of EMI in third-generation semiconductor devices used in power electronic converters. The modeling methods of EMI are summarized from the perspectives of power devices and coupling paths. The suppression methods of conducted noise are summarized by suppressing EMI sources and improving coupling path characteristics. This paper provides a reference for the electromagnetic compatibility design of power electronic converters for third-generation semiconductor devices.

Emerging Scientific and Technical Challenges and Developments in Key Power Electronics and Mechanical Engineering

“…Wu et al [13] described the EMI sources and coupling paths of EMI in third-generation semiconductor devices used in power electronic converters. The modeling methods of EMI are summarized from the perspectives of power devices and coupling paths.…”

Design of Interleaved Winding for Multilayer Planar Inductor and Its Application in Reducing Current Ringing of LLC Resonant Converter

“…Methods for reducing the parasitic parameters of planar magnetic components were summarized in [14], and it was verified that the parasitic capacitance can be effectively reduced by optimizing the winding design. Reducing current ringing can decrease the EMI issues of converters, as demonstrated in [15][16][17][18]; thus, mitigating current ringing is an important technique to reduce the EMI problems in converters.…”

A Chua’s Chaotic Chirp Spread-Spectrum Power Spectral Homogenization Strategy Based on Distribution Transformation

“…Offline power converters serve as significant sources of supraharmonics, introducing EMI into the grid through conduction and presenting challenges in addressing supraharmonics in the grid [7,8]. Therefore, investigating strategies to suppress EMI [9,10] in offline power converters holds practical significance, whether in improving the electromagnetic compatibility performance of these converters or enhancing the power quality of power systems [11].…”