{"title":"基于二值排序算法的模块化多电平变换器电容电压平衡优化策略","authors":"Donghao Wang, Baoge Zhang","doi":"10.1109/ISNE.2019.8896591","DOIUrl":null,"url":null,"abstract":"Capacitor voltage balancing strategy for Submodules (SMs) is one of the key technologies for modular multi-level converters(MMC). The conventional strategy has the problems of large computation and high switching frequency of devices. In order to solve these problems, a mark and operation voltage balancing strategy (MOVBS) is proposed. This strategy marks SMs with two different labels according to the amplitude of capacitor voltage of SMs and current direction of arms, then do sorting and selecting operations to SMs based on the marking results. It reduces sorting times, switching frequency and power loss of devices. For capacitor voltage sorting process, a binary radix sorting algorithm(BRSA) is proposed to improve sorting speed and efficiency of MOVBS. Finally, the feasibility and effectiveness of the MOVBS is verified with a 11-level MMC-HVDC simulation model created in Matlab/Simulink.","PeriodicalId":405565,"journal":{"name":"2019 8th International Symposium on Next Generation Electronics (ISNE)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Optimized Capacitor Voltage Balance Strategy using Binary Number Sorting Algorithm for Modular Multilevel Converter\",\"authors\":\"Donghao Wang, Baoge Zhang\",\"doi\":\"10.1109/ISNE.2019.8896591\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Capacitor voltage balancing strategy for Submodules (SMs) is one of the key technologies for modular multi-level converters(MMC). The conventional strategy has the problems of large computation and high switching frequency of devices. In order to solve these problems, a mark and operation voltage balancing strategy (MOVBS) is proposed. This strategy marks SMs with two different labels according to the amplitude of capacitor voltage of SMs and current direction of arms, then do sorting and selecting operations to SMs based on the marking results. It reduces sorting times, switching frequency and power loss of devices. For capacitor voltage sorting process, a binary radix sorting algorithm(BRSA) is proposed to improve sorting speed and efficiency of MOVBS. Finally, the feasibility and effectiveness of the MOVBS is verified with a 11-level MMC-HVDC simulation model created in Matlab/Simulink.\",\"PeriodicalId\":405565,\"journal\":{\"name\":\"2019 8th International Symposium on Next Generation Electronics (ISNE)\",\"volume\":\"142 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2019 8th International Symposium on Next Generation Electronics (ISNE)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISNE.2019.8896591\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 8th International Symposium on Next Generation Electronics (ISNE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISNE.2019.8896591","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Optimized Capacitor Voltage Balance Strategy using Binary Number Sorting Algorithm for Modular Multilevel Converter
Capacitor voltage balancing strategy for Submodules (SMs) is one of the key technologies for modular multi-level converters(MMC). The conventional strategy has the problems of large computation and high switching frequency of devices. In order to solve these problems, a mark and operation voltage balancing strategy (MOVBS) is proposed. This strategy marks SMs with two different labels according to the amplitude of capacitor voltage of SMs and current direction of arms, then do sorting and selecting operations to SMs based on the marking results. It reduces sorting times, switching frequency and power loss of devices. For capacitor voltage sorting process, a binary radix sorting algorithm(BRSA) is proposed to improve sorting speed and efficiency of MOVBS. Finally, the feasibility and effectiveness of the MOVBS is verified with a 11-level MMC-HVDC simulation model created in Matlab/Simulink.
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