| FBMMC直流故障穿越机理及故障清除策略 |
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| 引用本文： | 和敬涵,黄威博,李海英,罗国敏,王光江,许寅.FBMMC直流故障穿越机理及故障清除策略[J].电力自动化设备,2017,37(10). |
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| 作者姓名： | 和敬涵 黄威博 李海英 罗国敏 王光江 许寅 |
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| 作者单位： | 北京交通大学 电气工程学院，北京 100044,北京交通大学 电气工程学院，北京 100044,南瑞继保有限公司，江苏 南京 211102,北京交通大学 电气工程学院，北京 100044,北京交通大学 电气工程学院，北京 100044,北京交通大学 电气工程学院，北京 100044 |
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| 基金项目： | 国家高技术研究发展计划(863计划)资助项目(2015-AA050101)；国家自然科学基金资助项目(51277009,51507008) |
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| 摘 要： | 针对模块化多电平换流器型直流输电(MMC-HVDC)直流故障的快速清除,对全桥型模块化多电平换流器(FBMMC)直流故障机理及故障清除控制策略进行了研究。研究了全桥子模块的导通模式与运行特性;分析了闭锁前后直流侧双极短路故障机理、故障电流阻断原理和故障清除控制策略。在PSCAD/EMTDC中搭建了仿真模型,对全桥子模块的运行特性、直流故障机理、故障清除及快速恢复策略进行了仿真分析,结果验证了所提策略在直流故障穿越方面的有效性。
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| 关 键 词： | 模块化多电平换流器 全桥子模块 直流输电 直流故障 闭锁 故障穿越 |
FBMMC DC fault ride-through mechanism and fault clearing strategy |
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| HE Jinghan,HUANG Weibo,LI Haiying,LUO Guomin,WANG Guangjiang and XU Yin.FBMMC DC fault ride-through mechanism and fault clearing strategy[J].Electric Power Automation Equipment,2017,37(10). |
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| Authors: | HE Jinghan HUANG Weibo LI Haiying LUO Guomin WANG Guangjiang and XU Yin |
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| Affiliation: | School of Electrical and Engineering, Beijing Jiaotong University, Beijing 100044, China,School of Electrical and Engineering, Beijing Jiaotong University, Beijing 100044, China,Nanjing NR Electric Co.,Ltd.,Nanjing 211102, China,School of Electrical and Engineering, Beijing Jiaotong University, Beijing 100044, China,School of Electrical and Engineering, Beijing Jiaotong University, Beijing 100044, China and School of Electrical and Engineering, Beijing Jiaotong University, Beijing 100044, China |
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| Abstract: | In view of the rapid clearing of MMC-HVDC(Modular Multilevel Converter based HVDC) DC fault, the DC fault mechanism and fault clearing control strategy of full-bridge modular multilevel converters are studied. The conducting mode and operating characteristics of the full-bridge submodule are analyzed. The mechanism of DC-side pole-to-pole fault, the fault current blocking principle and the fault clearing control strategy before and after locking are proposed. A simulation model is built in PSCAD/EMTDC, based on which the operating characteristics of full-bridge submodule, the DC fault mechanism, the fault clearing and fast recovery strategy are carried out. The simulative results verify the effectiveness of the proposed control strategy for full-bridge submodule in aspects of DC fault ride-through. |
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| Keywords: | modular multilevel converter full-bridge submodule DC power transmission DC fault locking fault ride-through |
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