基于风电仿真模型等值的相关讨论

Discussion Based on Wind Power Equivalent Simulation Models

随着新疆大规模风电的集中投产,电网中风电装机容量的比例不断增加,风电运行对电网的影响也越来越大。其动态特性特别是故障时的特性不但影响电网的输电能力,也影响了自身的送出能力。为使电网仿真更加符合实际,需进一步提高风电仿真精度。对风电场模型的优化细化,对风力发电系统特性进行精确的模拟,是研究含风电系统的电网动态特性和制定相关控制策略的必要前提,因此风电场的等值建模对于研究含风电电力系统的相关问题十分必要。就目前工程仿真常见的风电场仿真模型进行了论述,结合电网运行实际情况就存在的不足进行了讨论,提出了建议和应对改进措施,为今后开展相关工作提供借鉴,为光伏电站等值建模提供参考,对含风电场电网的安全稳定分析以及控制策略的研究具有重要的参考意义。

With the large-scale wind power being put into centralized operation in Xinjiang , the proportion of wind power in-stalled capacity in the grid increases continuously , and the impact of wind power operation on the grid is also growing .Its dy-namic characteristics , especially the characteristics during the fault affect not only the transmission capability of power grid , but also its own transmission capability .In order to make the grid simulation more realistic , the accuracy of wind power simu-lation should be improved .The optimization and refinement of wind farm model and the accurate simulation for the characteris -tics of wind power generation system , are a necessary prerequisite to study the dynamic characteristics of power grid with wind power system and the development of relevant control strategies , so the equivalent model of wind farm is necessary for studying the issues related to wind power system .The common simulation models of wind farm in current engineering simulation are dis-cussed.Combined with the actual situation of the grid , the existing shortcomings are also discussed , the suggestions and im-provement measures are proposed , which provides a reference for the future work of the equivalent modeling of photovoltaic power plants and for the security and stability analysis of power grid with wind farms as well as the research of control strate -gies.