风电场限功率状态下电网旋转备用优化分配

发布时间：2018-05-12 14:43

本文选题：风电限功率运行 + 旋转备用　；参考：《电力系统自动化》2017年21期

【摘要】：并网风电场参与电网调频且主动提供旋转备用是高渗透率电网的客观需求,而风电场限功率运行是风电参与调频的必要条件。定量分析了风电场限功率运行对二次调频指标及风电极限穿透功率的影响,认为风电场限功率运行能从调频备用容量以及调频速度两个方面减轻同步发电机的调频压力,同时增加了电网中风电的极限穿透功率。为研究风电场限功率运行下的二次旋转备用分配问题,建立了电网备用优化模型并构建了包含等值同步发电机及风机的动态等值模型,通过MATLAB/Simulink进行求解及仿真,优化及动态仿真结果均表明风电场处于限功率状态有利于增加电网频率稳定性并减少旋转备用。
[Abstract]:It is the objective demand of high permeability power grid that wind farm participate in frequency modulation and provide rotation reserve actively, and the limited power operation of wind farm is the necessary condition for wind power to participate in frequency modulation. The influence of limited power operation of wind farm on the secondary frequency modulation index and wind power limit penetration power is quantitatively analyzed. It is considered that the limited power operation of wind farm can reduce the frequency modulation pressure of synchronous generator from two aspects of frequency modulation reserve capacity and frequency modulation speed. At the same time, the limit penetration power of wind power in power grid is increased. In order to study the secondary rotation standby allocation problem under the limited power operation of wind farm, the optimization model of power grid reserve is established and the dynamic equivalent model including equivalent synchronous generator and fan is constructed. The model is solved and simulated by MATLAB/Simulink. The results of optimization and dynamic simulation show that the limited power state of the wind farm is beneficial to increase the frequency stability of the power grid and reduce the rotation reserve.
【作者单位】：西南交通大学电气工程学院;云南电网有限公司电力科学研究院;
【基金】：国家自然科学基金资助项目(51477143)~~
【分类号】：TM614

【相似文献】