State Estimation for Active Distribution Networks basedon Multisource Hybrid Measurements

摘要：

　　According to the fact of long-term coexistence of the remote terminal unit(RTU), the phasor measurement unit(PMU) and the advanced metering infrastructure(AMI) in active distribution networks, In this paper, a hybrid algorithm of state estimation based on hybrid measurements of RTU, PMU and AMI is presented, which consists of nonlinear static state estimation, linear static state estimation and linear dynamic state estimation. Linear dynamic state estimation and linear static state estimator tracks the changes of node injection active and reactive power utilizing PMU and RTU measurements, which can provides highly accurate virtual measurements for nonlinear static state estimation in the absence of AMI measurements. The proposed algorithm can shorten the calculation cycle and improve the accuracy of nonlinear static state estimation, and promotes the ability of state forecasting for active distribution networks. The effectiveness of the proposed algorithm is illustrated with numerical simulation using the IEEE13-bus system.

关键词： active distribution network (AND) static state estimation dynamic state estimation constant jacobian matrix hybrid measurement multi-source measurement

作者: Shaofang WANG GuangYi LIU

作者单位: China Electric Power Research Institute,Beijing 100192,China Global Energy Interconnection Research Institute

会议类型: 国际会议

会议名称: 2016中国国际供电会议(CICED2016)

会议地点: 西安

会议语种:英文

页码: 1-5

在线出版日期: 2016-09-01（万方平台首次上网日期，不代表论文的发表时间）