中文摘要：

大规模风电接入后将对电网的安全稳定运行带来挑战。预计到2015年,约有500 MW的风电接入湖北恩施电网。基于2015年湖北恩施电网及风电的规划数据,通过仿真计算研究了大规模风电并网对系统暂态稳定性的影响,分析比较了基于双馈风机的风电场在不同并网点、不同并网容量下接入对电力系统暂态稳定性的影响,并对仿真结果进行了理论分析。最后提出了通过加装动态无功补偿设备SVC改善风机并网系统暂态稳定性的措施,仿真结果验证了该措施的有效性。

英文摘要：

Large scale wind power integration will challenge the stability performance of the power grid.There will be approximately500 MW wind power integrated into Enshi Hubei power grid by 2015.In this paper,the impact of large wind power integration on transient stability of the power system is investigated by utilizing computer stimulation.Based on the data of the long-term project of Enshi Hubei power grid and wind power planning in Enshi by 2015,the impacts of different location and various integration capacities of DFIGs on the system transient stability are analyzed and calculated,and theoretical analysis is also presented.It is proposed to use SVC to improve the transient stability of the system with large wind power integrated in,meanwhile the availability of this proposal is tested and verified by the simulation.