EMI Reduction in Grid-Connected Converters Using the Nonlinear Behavior of Multi-Layer Ceramic Capacitors
In soft switching power converters, placing a capacitor parallel to the switching semiconductor power devices is a means to reduce electromagnetic interference. This paper investigates the application of multi-layer ceramic capacitors, MLCCs, as parallel capacitors in grid-connected converters, focu...
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| Language: | English |
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IEEE
2025-01-01
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| Series: | IEEE Open Journal of Power Electronics |
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| Online Access: | https://ieeexplore.ieee.org/document/11072728/ |
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| author | Yusuf Kosesoy Henk Huisman Jan M. Schellekens |
| author_facet | Yusuf Kosesoy Henk Huisman Jan M. Schellekens |
| author_sort | Yusuf Kosesoy |
| collection | DOAJ |
| description | In soft switching power converters, placing a capacitor parallel to the switching semiconductor power devices is a means to reduce electromagnetic interference. This paper investigates the application of multi-layer ceramic capacitors, MLCCs, as parallel capacitors in grid-connected converters, focusing on the nonlinear behavior of these components. Unlike traditional capacitors, MLCCs, particularly Class II ceramics like X7R, exhibit voltage-dependent capacitance characteristics, which can introduce beneficial effects for EMI reduction. The study explores different types of MLCCs, comparing NP0/C0G and X7R, and highlights their respective behaviors in controlling voltage (dv/dt) and current (di/dt) transients. Through simulation and experimental validation, it is demonstrated that EMI mitigation using nonlinear MLCCs is more effective than using linear capacitor types as parallel capacitors. The findings of this research provide insight into the selection and application of parallel capacitors in grid-connected converters, with a focus on minimizing EMI. |
| format | Article |
| id | doaj-art-c9068854d98d41df9ff9ef3e999401ca |
| institution | DOAJ |
| issn | 2644-1314 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Power Electronics |
| spelling | doaj-art-c9068854d98d41df9ff9ef3e999401ca2025-08-20T03:13:38ZengIEEEIEEE Open Journal of Power Electronics2644-13142025-01-0161255126810.1109/OJPEL.2025.358688111072728EMI Reduction in Grid-Connected Converters Using the Nonlinear Behavior of Multi-Layer Ceramic CapacitorsYusuf Kosesoy0https://orcid.org/0000-0002-3758-9678Henk Huisman1https://orcid.org/0000-0002-0671-2506Jan M. Schellekens2https://orcid.org/0000-0002-6649-6104Department of Electrical Engineering, Power Electronics Lab (PELe), Eindhoven University of Technology, Eindhoven, The NetherlandsDepartment of Electrical Engineering, Power Electronics Lab (PELe), Eindhoven University of Technology, Eindhoven, The NetherlandsDepartment of Electrical Engineering, Power Electronics Lab (PELe), Eindhoven University of Technology, Eindhoven, The NetherlandsIn soft switching power converters, placing a capacitor parallel to the switching semiconductor power devices is a means to reduce electromagnetic interference. This paper investigates the application of multi-layer ceramic capacitors, MLCCs, as parallel capacitors in grid-connected converters, focusing on the nonlinear behavior of these components. Unlike traditional capacitors, MLCCs, particularly Class II ceramics like X7R, exhibit voltage-dependent capacitance characteristics, which can introduce beneficial effects for EMI reduction. The study explores different types of MLCCs, comparing NP0/C0G and X7R, and highlights their respective behaviors in controlling voltage (dv/dt) and current (di/dt) transients. Through simulation and experimental validation, it is demonstrated that EMI mitigation using nonlinear MLCCs is more effective than using linear capacitor types as parallel capacitors. The findings of this research provide insight into the selection and application of parallel capacitors in grid-connected converters, with a focus on minimizing EMI.https://ieeexplore.ieee.org/document/11072728/Multi-layer ceramic capacitorsnonlinear capacitance modelsEMI reductionac–dc power converterssoft switching converterszero voltage switching |
| spellingShingle | Yusuf Kosesoy Henk Huisman Jan M. Schellekens EMI Reduction in Grid-Connected Converters Using the Nonlinear Behavior of Multi-Layer Ceramic Capacitors IEEE Open Journal of Power Electronics Multi-layer ceramic capacitors nonlinear capacitance models EMI reduction ac–dc power converters soft switching converters zero voltage switching |
| title | EMI Reduction in Grid-Connected Converters Using the Nonlinear Behavior of Multi-Layer Ceramic Capacitors |
| title_full | EMI Reduction in Grid-Connected Converters Using the Nonlinear Behavior of Multi-Layer Ceramic Capacitors |
| title_fullStr | EMI Reduction in Grid-Connected Converters Using the Nonlinear Behavior of Multi-Layer Ceramic Capacitors |
| title_full_unstemmed | EMI Reduction in Grid-Connected Converters Using the Nonlinear Behavior of Multi-Layer Ceramic Capacitors |
| title_short | EMI Reduction in Grid-Connected Converters Using the Nonlinear Behavior of Multi-Layer Ceramic Capacitors |
| title_sort | emi reduction in grid connected converters using the nonlinear behavior of multi layer ceramic capacitors |
| topic | Multi-layer ceramic capacitors nonlinear capacitance models EMI reduction ac–dc power converters soft switching converters zero voltage switching |
| url | https://ieeexplore.ieee.org/document/11072728/ |
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