电测与仪表2016，Vol.53Issue(19)：1-6,6.
海上风电场并网柔直系统的故障穿越协调控制策略
A coordinated control strategy for fault ride-through of offshore wind farm connected flexible HVDC transmission system
摘要
Abstract
This paper analyzes multilevel lumped DBR circuits which are based on the H-bridge inverter unit and sim-ple lumped air-cooled resistors , introducing their structural topology , parameter design and control method , and dem-onstrates the FRT performance of multilevel lumped DBR circuits by comparing with the modular multi -level DBR cir-cuits.For the offshore wind farm connected by flexible HVDC transmission system , combining the AC-voltage magni-tude reduction method of double-fed and permanent magnet direct-driven wind farm converter station , the FRT coordi-nation control strategy is designed by using WTGs ’ ability of power regulation of wind farms .Under the premise of en-suring FRT performance of system , the study reduces required capacity of DBR circuits , thus to adapt for large-capac-ity and high-voltage situations.Based on parameters of German Borwin1 project, a flexible three-terminal HVDC sys-tem model is established in PSCAD/EMTDC software and simulation results show that the coordination control strategy has good FRT control effect .关键词
柔性直流输电/故障穿越/协调控制/多电平集中式卸荷电路/海上风电场Key words
VSC-HVDC/fault ride-through/coordination control/multilevel lumped DBR circuit/offshore wind farm分类
信息技术与安全科学引用本文复制引用
刘璇,宋强,刘文华..海上风电场并网柔直系统的故障穿越协调控制策略[J].电测与仪表,2016,53(19):1-6,6.基金项目
国家自然科学基金项目 （）
