Fault Characteristics and Protection Scheme of the MMC-UPFC under Different Grounding Design
[摘要] The Unified Power Flow Controller (UPFC) based on Modular Multilevel Converter (MMC) is more suitable for high-voltage and large-capacity transmission fields. According to the actual needs of demonstration project, 3 grounding proposals were brought out and the effect of different grounding proposals to the fault characteristics and protection schemes is analyzed in detail. The conclusion that only parallel valve side star connected large resistance grounding is more advantageous in MMC-UPFC was derived.
[发布日期] [发布机构] North China Electric Power University, Changping District, Beijing; 102206, China^1;NARI Technology Co. Ltd., Nanjing; 211106, China^2;State Grid Smart Grid Research Institute, Changping District, Beijing; 102211, China^3
[效力级别] 经济学 [学科分类]
[关键词] Capacity transmission;Demonstration project;Fault characteristics;High voltage;Modular multi-level converters;Protection schemes;Resistance grounding;Unified power flow controllers [时效性]
