风电接入对海上油田平台电网稳定性的影响

孤立电网接入风电可以节约燃料，降低运行成本。受风电特性的影响，风电穿透功率使电网在节约燃料的同时，也对电网稳定性造成了很大的影响。文章建立了包括燃气轮机在内的电网模型和多极永磁同步风力发电机模型，评价了由燃气轮发电机供电的海上油田平台孤立电网接入风电时的电网稳定性，并通过仿真研究了该海上油田平台孤立电网接入风电的最大穿透功率。PSCAD/EMTDC的仿真结果和中国海洋石油总公司建造的海上风力发电站的成功并网均表明，文中的平台电网能保持电网频率和负荷电压在规定的范围内。

Impact of Wind Power Generator on Stability of Offshore Oil Platform Power Systems

The interconnection of wind power generator with isolated power system can conserve fuel and reduce operation cost. Impacted by the features of wind power generation, the wind power penetration greatly influences the stability of isolated power system while the fuel is conserved. In this paper, a model of multi-pole permanent synchronous wind turbine generator as well as a model of isolated power system involving gas turbine generation units are built and the stability of this isolated power system, to which the wind power generators are connected, for offshore oil platform supplied by gas turbine generators is evaluated. By means of simulation by PSCAD/EMTDC, the maximum wind power penetration of isolated power system supplies to offshore oil platform supplied by three gas turbine generators is researched while the wind power generators are connected. Simulation results and the successful interconnection of offshore wind power plant constructed by China National Offshore Oil Corporation show that the researched offshore oil platform supplied by isolated power system with wind power generators connected can keep the system frequency and voltage stability in desired range and the impacts of the switching of/off of the wind power generators on system voltage and frequency are acceptable.