基于新息图法的电力系统不正常事件识别方法  

Recognition Method for Abnormal Events in Power System Based on Innovation Graph Technique

作　　者：李子清[1] 辛旺[2] 邓永红[3] 

机构地区：[1]自贡电业局,四川自贡643000 [2]北碚供电局,重庆400700 [3]乐山电业局,四川乐山614800

出　　处：《四川电力技术》2011年第6期40-42,70,共4页Sichuan Electric Power Technology

摘　　要：新息图法在识别负荷突变、不良数据和拓扑变化的识别方面较之传统的状态估计方法,具有计算过程简单,对测量冗余要求较低的优越性。新息图法结合了静态状态估计和动态状态估计的优点,利用新息差矢量在新息网络中的特征,能够对恶劣条件下的不正常事件准确识别并加以修正。通过IEEE-30节点系统算例,对新息图识别不正常事件的过程进行了分析,证明了方法的有效性。The innovation graph technique has a simpler calculation process and less requirements of measuring the redundancy in the identification of sudden load change, bad data and topology error. The innovation graph technique combines the advan-. rages of static state estimation with dynamic state estimation, and uses the performance feature of the innovation difference vectot in innovation graph network to identify and modify the abnormal events. Using IEEE - 30 bus system, the identification process of abnormal events by innovation graph technique is analyzed and the validity of the proposed method is proved.

关 键 词：电力系统状态估计 新息图 坏数据 拓扑错误 

分 类 号：TM711[电气工程—电力系统及自动化]