高电压技术2023，Vol.49Issue(12)：5207-5216,10.DOI:10.13336/j.1003-6520.hve.20221382
自抗扰控制的九开关变换器提升分散式风电系统电能质量
Nine-switch Converter with Active Disturbance Rejection Control to Improve Power Quality of Distributed Wind Power System
摘要
Abstract
In order to improve the grid fault ride-through capability and system immunity performance of decentralized wind power under high wind power penetration scenarios,a nine-switch converter type unified power quality regulator scheme is proposed.Based on the analysis of the mathematical model of the nine-switch converter,the first-order ADRC strategy of the DC bus voltage is designed.The disturbance can be compensated by the linear extended state observer to reduce the transient overshoot of the DC voltage.Based on the analysis of the mathematical model of the permanent magnet synchronous generator,the linear active disturbance rejection control strategy is adopted in the grid side converter to improve the dynamic performance of the system.Three kinds of complex operation conditions of power grid including voltage symmetrical fault,asymmetric fault,and continuous fault are designed,and the proposed schemes are compared and verified.The research results show that the proposed scheme improves the response speed of decentralized wind power system,reduces transient overshoot by about 50％,and realizes flexible fault ride through operation.关键词
九开关变换器/分散式风电/统一电能质量调节器/自抗扰控制/故障穿越/永磁同步发电机Key words
nine switch converter/distributed wind power/unified power quality conditioner/automatic disturbance re-jection control/fault ride-through/permanent magnet synchronous generator引用本文复制引用
王金鑫,任永峰,孟庆天,胡志帅,薛宇,潘禹..自抗扰控制的九开关变换器提升分散式风电系统电能质量[J].高电压技术,2023,49(12):5207-5216,10.基金项目
国家自然科学基金(52367022 （）
51967016) （）
内蒙古自治区重点研发和成果转化项目(2023YFHH0077 （）
2023YFHH0097) （）
内蒙古自治区科技创新重大示范工程"揭榜挂帅"项目(2023JBGS0013).Project supported by National Natural Science Foundation of China(52367022,51967016),Key R&D and Achievement Transformation Projects in Inner Mongolia Autonomous Region(2023YFHH0077,2023YFHH0097),Inner Mongolia Autonomous Region Science and Technology Innovation Major Demonstration Project"Unveiling and Commanding"Project(2023JBGS0013). （2023JBGS0013）
