考虑同调约束的电力系统主动解列断面的搜索方法

发布时间：2018-08-10 19:23

【摘要】：电力系统主动解列是避免发生大停电事故和系统崩溃的有效保护措施,需要及时、准确地确定解列方案。文中提出一种考虑发电机同调约束的最佳解列断面的搜索方法。首先基于故障后广域测量系统(WAMS)提供的实时动态响应信息,利用改进拉普拉斯特征映射算法在线识别同调机群,利用发电机同调虚拟节点聚合同调机群,减小解列断面的搜索空间,然后利用加权拉普拉斯分群策略得到初始的解列断面。最后考虑断面有功功率的方向,利用启发式变邻域搜索算法确定最佳的解列断面,使得解列后各孤岛的净不平衡功率最小。文中方法能充分考虑不同故障模式所带来的同调行为的差异性,使得主动解列控制具有选择性和鲁棒性。通过新英格兰39节点系统验证了所述方法的有效性和适应性。
[Abstract]:Active de-listing of power system is an effective protection measure to avoid blackout and system collapse. It is necessary to determine the scheme in time and accurately. In this paper, a search method for optimal discontinuous cross section considering generator homology constraint is presented. Firstly, based on the real-time dynamic response information provided by (WAMS), an improved Laplace feature mapping algorithm is used to identify the homology cluster online, and the virtual node of generator homology is used to gather the contract tuning group. The search space of the decomposed section is reduced, and then the initial decoupling section is obtained by using the weighted Laplace clustering strategy. Finally, considering the direction of active power of the section, the heuristic variable neighborhood search algorithm is used to determine the optimal unlisted section, so that the net unbalanced power of each isolated island is minimized. In this paper, the difference of homology behavior brought by different fault modes can be fully considered, which makes active decoupling control selective and robust. The effectiveness and adaptability of the proposed method are verified by the 39-bus system in New England.
【作者单位】：北京交通大学电气工程学院;
【基金】：高等学校博士学科点专项科研基金资助项目(20100009110025) 中央高校基本科研业务费专项资金资助项目(2011YJS274)~~
【分类号】：TM711

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