D. Stepins, Lalithambica Akunuri, A. Subbarao, J. Zakis
{"title":"利用基于多开关频率的方法降低感应谐振WPT系统产生的电磁发射","authors":"D. Stepins, Lalithambica Akunuri, A. Subbarao, J. Zakis","doi":"10.1109/RTUCON51174.2020.9316570","DOIUrl":null,"url":null,"abstract":"Being switch-mode in nature, wireless power transfer systems (WPT) emit significant conducted electromagnetic emissions (EME). In this paper for the first time multi switching frequency scheme is applied to closed-loop WPT systems for reduction of conducted EME. In this method inductive resonant WPT system operates at different discrete switching frequencies sequentially. The effect of the multi switching frequency scheme on main performance characteristics of inductive-resonant wireless battery charger operating in constant current mode is analyzed by using simulations. Performance characteristics of the WPT system with the multi switching frequency scheme are compared with that of WPT system without modulations and with classical switching frequency modulation. It is shown that wireless battery charger with the multi switching frequency scheme exhibits performance similar to performance of wireless battery charger with classical switching frequency modulation but complexity of control is lower.","PeriodicalId":332414,"journal":{"name":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Reduction of Electromagnetic Emissions Generated by Inductive Resonant WPT Systems Using Multi-Switching-Frequency-Based Method\",\"authors\":\"D. Stepins, Lalithambica Akunuri, A. Subbarao, J. Zakis\",\"doi\":\"10.1109/RTUCON51174.2020.9316570\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Being switch-mode in nature, wireless power transfer systems (WPT) emit significant conducted electromagnetic emissions (EME). In this paper for the first time multi switching frequency scheme is applied to closed-loop WPT systems for reduction of conducted EME. In this method inductive resonant WPT system operates at different discrete switching frequencies sequentially. The effect of the multi switching frequency scheme on main performance characteristics of inductive-resonant wireless battery charger operating in constant current mode is analyzed by using simulations. Performance characteristics of the WPT system with the multi switching frequency scheme are compared with that of WPT system without modulations and with classical switching frequency modulation. It is shown that wireless battery charger with the multi switching frequency scheme exhibits performance similar to performance of wireless battery charger with classical switching frequency modulation but complexity of control is lower.\",\"PeriodicalId\":332414,\"journal\":{\"name\":\"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-11-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/RTUCON51174.2020.9316570\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE 61th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RTUCON51174.2020.9316570","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Reduction of Electromagnetic Emissions Generated by Inductive Resonant WPT Systems Using Multi-Switching-Frequency-Based Method
Being switch-mode in nature, wireless power transfer systems (WPT) emit significant conducted electromagnetic emissions (EME). In this paper for the first time multi switching frequency scheme is applied to closed-loop WPT systems for reduction of conducted EME. In this method inductive resonant WPT system operates at different discrete switching frequencies sequentially. The effect of the multi switching frequency scheme on main performance characteristics of inductive-resonant wireless battery charger operating in constant current mode is analyzed by using simulations. Performance characteristics of the WPT system with the multi switching frequency scheme are compared with that of WPT system without modulations and with classical switching frequency modulation. It is shown that wireless battery charger with the multi switching frequency scheme exhibits performance similar to performance of wireless battery charger with classical switching frequency modulation but complexity of control is lower.