电测与仪表2024，Vol.61Issue(7)：57-64,8.DOI:10.19753/j.issn1001-1390.2024.07.009
基于储能和无功优化的直驱机组海上风电场低电压穿越策略
Low voltage ride through strategy of the D-PMSG offshore wind power farm based on energy storage and reactive power optimization
摘要
Abstract
Aiming at the problem of low voltage ride through of the direct drive permanent magnet synchronous gen-erator(D-PMSG)offshore wind power,a control scheme based on energy storage and reactive power optimization is proposed.Lithium battery is used as a distributed energy storage device to absorb the excess power on the DC bus at the time of fault,and suppress the voltage to rise on the DC side of the unit when the power grid fault occurs.Simultaneously,according to the different operation condition of various units,the different reactive instruction is assigned.The output active power of the grid-side inverter,DC bus voltage and terminal voltage of the machine-side converter are selected as evaluation indices.According to the result of evaluation index for the wind farms,the ability of low voltage ride through is evaluated to optimize the reactive power of each unit.Thus,the reactive power output capacity of the whole wind farm is effectively improved.Taking an offshore wind farm as an example,the simulation results show that the proposed scheme can significantly improve the low voltage ride through ability of the wind farm.关键词
锂电池储能/海上风电场/低电压穿越/永磁直驱同步发电机/无功优化Key words
lithium battery energy storage/offshore wind power farm/low voltage ride through/direct drive perma-nent magnet synchronous generator(D-PMSG)/reactive power optimization分类
信息技术与安全科学引用本文复制引用
黄肖琪,周羽生,周文晴,杨航,刘应杰..基于储能和无功优化的直驱机组海上风电场低电压穿越策略[J].电测与仪表,2024,61(7):57-64,8.基金项目
国家自然科学基金资助项目(52177015) （52177015）
湖南省教育厅科学研究重点资助项目(19A018) （19A018）
