基于河南风电场现状的柔直并网关键技术研究

Based on The Current Situation of Henan Wind Farm

基于河南的实际风电资源情况,从河南电网的现状与未来发展入手,结合现有风电聚集区经交流方式并网存在的问题,根据河南单个风电场规模小的特点,采用柔性直流输电技术,确定了柔直在河南风电并网中的应用技术原则和并网拓扑,并采用PSCAD/EMTDC进行了仿真验证。仿真结果表明,所提出的并网关键技术及其控制策略能够解决现有问题。

Based on the actual situation of wind power resources in Henan Province and combined with the existing problems of AC grid connection in the existing wind power gathering area,this paper takes the flexible DC transmission technology for wind power grid connection from the current situation and future development of Henan power grid,aiming at the characteristics of small scale of a single wind farm in Henan Province.The application technology principle and grid topology of flexible and direct wind power in Henan are determined.Simulation verification is carried out in PSCAD/EMTDC to verify whether the proposed key technology and control strategy can solve the existing problems and meet the needs of future development of power grid.