Abstract
The switching device in a power converter can produce very serious electromagnetic interference (EMI). In order to solve this problem and the associated reliability and stability issues, this article aimed to analyze and model the boost power factor correction (PFC) converter according to the EMI conduction path. The sources of common-mode (CM) and differential-mode (DM) noise of the boost PFC converter were analyzed, and the DM and CM equivalent circuits were deduced. Furthermore, high-frequency modeling of the common-mode inductor was developed using a precise model, and the EMI filter was designed. According to the Class B standard for EMI testing, it is better to restrain the EMI noise in the frequency range (150 kHz to 30 MHz) of the EMI conducted disturbance test. Using this method, a 2.4-kW PFC motor driving supply was designed, and the experimental results validate the analysis.
Highlights
With the rapid development of electronic technology, power converters are widely used in various fields [1]
The reliability of the power converter is affected by the manufacturing process and actual operating conditions
All kinds of capacitive elements, especially aluminum electrolytic capacitors, are key factors which affect the reliability of power converters
Summary
With the rapid development of electronic technology, power converters are widely used in various fields [1]. The application of the product requires the power to be converted to maintain high reliability and stability. In order to pursue higher performance and smaller size, the switching frequency of power devices is becoming increasingly higher [2,3]. With the continuous improvement of the switching frequency in power devices, its reliability became a common and urgent problem that needs to be solved. The reliability of the power converter is affected by the manufacturing process and actual operating conditions. Scholars from various countries conducted extensive research on the reliability of converter devices and their power devices [4,5,6]. Power converters usually consist of switching devices, storage devices, driving devices, and signal processing and control circuits. All kinds of capacitive elements, especially aluminum electrolytic capacitors, are key factors which affect the reliability of power converters
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
