程嘉诚,刘子琛,王琰迪,朱红,许洪华,纪业,卫志农
CHENG Jiacheng,LIU Zichen,WANG Yandi,ZHU Hong,XU Honghua,JI Ye,WEI Zhinong

• 1:国网江苏省电力有限公司南京供电分公司
• 2:河海大学电气与动力工程学院

摘要(Abstract)：

随着配电网高级测量体系的发展，智能电表数据为配电网状态估计提供了丰富的用户信息。与此同时，配电网原有的通信系统难以适应日益增大的网络传输与实时存储的压力。针对海量智能电表数据给配电网带来的通信压力，引入闭环事件触发机制以减少不必要的量测传输，并在此基础上，将事件触发机制中对事件的定义从单一的负荷波动扩展到拓扑变化。同时，由于站内开关缺少遥信数据，无法直接获取其状态，利用触发的量测信息，通过GSE（广义状态估计）建立配电网拓扑-状态联合估计模型。最后，通过改进的IEEE 13三相不对称系统验证了所提算法在缓解通信压力的同时，能够得到与WLS（加权最小二乘）相近的状态估计结果，并能够辨识出开关错误信息。
With the development of advanced measurement infrastructure(AMI) in distribution networks, smart meter data provide abundant user-side information for state estimation. However, existing communication systems struggle to cope with the increasing network transmission and real-time storage demands. To address the communication pressure caused by massive smart meter data, this paper introduces a closed-loop event-triggered mechanism to reduce unnecessary measurement transmissions. Furthermore, the definition of“ events” is extended from load fluctuations to topology changes. Due to the lack of telemetry data for substation switching devices, their status information cannot be directly acquired. Triggered measurements are used to formulate a joint topology and state estimation model through generalized state estimation(GSE). Validation on a modified IEEE 13-node test system confirms that the method reduces communication load while achieving accuracy comparable to weighted least squares(WLS). It also identifies faulty switch status.

关键词(KeyWords)： 配电网;联合状态估计;事件触发机制;广义状态估计
distribution network;joint state estimation;event-triggered mechanism;GSE

Abstract:

Keywords:

基金项目(Foundation): 国网江苏省电力有限公司科技项目（J2024080）

作者(Author): 程嘉诚,刘子琛,王琰迪,朱红,许洪华,纪业,卫志农
CHENG Jiacheng,LIU Zichen,WANG Yandi,ZHU Hong,XU Honghua,JI Ye,WEI Zhinong

DOI: 10.19585/j.zjdl.202509009

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