| 面向同步相量轨迹簇规则的电力系统暂态稳定实时评估 |
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| 引用本文： | 刘友波,刘俊勇,Gareth Taylor,刘利民,李俊. 面向同步相量轨迹簇规则的电力系统暂态稳定实时评估[J]. 中国电机工程学报, 2011, 31(16) |
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| 作者姓名： | 刘友波 刘俊勇 Gareth Taylor 刘利民 李俊 |
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| 作者单位： | 1. 四川大学电气信息学院,四川省,成都市,610065
2. 布鲁内尔大学布鲁内尔电力系统研究所,伦敦,UB8 3PH,英国 |
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| 基金项目： | 国家自然科学基金项目(50977059); 教育部国家建设高水平大学公派研究生项目([2009]3012)~~ |
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| 摘 要： | 设计同步相量测量条件下,面向发电机节点电压同步相量复平面轨迹规则的暂稳实时评估算法.利用K均值和模糊C均值组合算法在线识别扰动后若干周波内轨迹簇同调与聚类偏移特征,采用分类与回归树抽取所定义特征量规则,以实时轨迹簇的相对位置组合特征值规则而非轨迹状态(如幅值大小)本身来评估未来暂稳状态.实践表明,算法能在8～20周波内不依赖模型地高精度预估未来4s系统是否稳定及临界机、受扰程度等重要信息,且不依赖于既定扰动模式,侧重于系统对大扰动的泛化响应模式挖掘,回避了主导失稳模式判别,且避免了针对不同故障的多套规则存储.新英格兰10机39节点系统算例验证了方法的有效性.
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| 关 键 词： | 轨迹簇 面向规则 暂态稳定 实时评估 同调系数 同步相量测量 |
Rule-based Combined Algorithm for Power System Real-time Transient Stability Assessment Using Synchronized Phasor Trajectory Clusters |
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| LIU Youbo , LIU Junyong , Gareth Taylor , LIU Limin , LI Jun. Rule-based Combined Algorithm for Power System Real-time Transient Stability Assessment Using Synchronized Phasor Trajectory Clusters[J]. Proceedings of the CSEE, 2011, 31(16) |
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| Authors: | LIU Youbo LIU Junyong Gareth Taylor LIU Limin LI Jun |
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| Affiliation: | LIU Youbo1,LIU Junyong1,Gareth Taylor2,LIU Limin1,LI Jun1(1.School of Electrical Engineering and Information,Sichuan University,Chengdu 610065,Sichuan Province,China,2.Brunel Institute of Power Systems,Brunel University,London UB8 3PH,United Kingdom) |
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| Abstract: | With synchronized phasor measurement,a real-time assessment algorithm for transient stability based on phasor trajectory clusters rules is presented in this paper.A novel combined algorithm,which was composed of K-mean and fuzzy C-mean methods,was applied on line to recognize trajectories' coherency state and deviation features of clusters' appearance within several cycles after disturbance.A standard classification and regression tree(CART) method was proposed to abstract knowledge rules from the evolution... |
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| Keywords: | trajectory clusters rule-based transient stability real-time assessment coherence coefficient synchronized phasor measurement |
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