计及运行点变化的互联电力系统广域阻尼控制研究  

Wide-area Damping Control of Interconnected Power Grid Considering Operating Point Changes

作　　者：索江镭 张子泳 熊敏[2] 

机构地区：[1]广东电网电力调度控制中心,广东广州510000 [2]武汉大学电气工程学院,湖北武汉430072

出　　处：《陕西电力》2015年第11期52-59,共8页Shanxi Electric Power

基　　金：高等学校博士学科点专项科研基金(20110141110032);西安交通大学电力设备电气绝缘国家重点实验室资助(EIPE13205)

摘　　要：研究了电力系统运行点变化情况下的广域阻尼控制问题。结合未来大规模风电并网的背景,考虑风电场出力变化造成的系统运行点的改变,提出采用增益调度控制思想,通过线性变参数方法对含风电场的互联电力系统进行动态建模,然后将整个风电场出力变化范围进行网格划分,再分别进行控制器设计,最后通过三角隶属函数制定的调度准则进行控制参数的插值,构造满足适应整个风电场出力变化范围的广域阻尼控制器。算例结果表明:上述方法能有效应对运行点大范围变化情况下电力系统广域阻尼控制问题,且该方法仍属于线性方法。相比传统的鲁棒控制方法与非线性控制方法具简单易行的优势,更有利于工程应用。This paper studies the problem of wide area damping control system under the change of power system aperating points. It considers the changes of wind farm output that give rise to the ehanges of the system operating points, by combining the background of wind power integration on a large scale in the future. This paper proposes using the idea of gaining scheduling control through linear parameter varying method to conduct dynamic modeling on the interconnected electric power system with wind power, thereby meshing the entire wind power range and designing the controller separately, to build the wide-range damping controller that meets the requirement of wind farm output range variation via the interpolation of tire control parameters conducted by scheduling criteria formulated by triangular membership tunction. The example shows that the above method can effectively deal with the wide-area damping control problem of the power system within a large range of operating point. This method is still a linear method, which is more teasible and beneficial to engineering application when comparing robust control system method and non-linear control method.

关 键 词：互联电力系统 广域阻尼控制器 增益调度 自由权矩阵 

分 类 号：TM721[电气工程—电力系统及自动化]