电测与仪表2017，Vol.54Issue(19)：32-38,7.
配电系统关键量测解耦快速辨识及鲁棒量测优化配置
The optimal placement for fast decoupled identification of critical measurement and robust measurement in distribution system
戚艳 1梁栋 2董逸超 2王守相2
作者信息
- 1. 国网天津电力公司电力科学研究院,天津300384
- 2. 天津大学智能电网教育部重点实验室,天津300072
- 折叠
摘要
Abstract
The real-time accurate perception of distribution system depends on the state estimation , and the successful operation of state estimation depends on the measurement system .This paper proposes a novel method concerning fast decoupled identification of critical measurement and robust measurement in three-phase unbalanced distribution sys-tem.The method can identify all critical measurements and critical measurement sets in a decoupled and non-iterative manner .On one hand , only state estimation calculation relevant to active power measurements is needed , which greatly reduces the computational scale .On the other hand , no iteration is needed and the relevant strict theoretical proof is given.Besides, a three-phase m-1 robust measurement placement model is proposed , aiming to guarantee the network observability in the case of any measurement being lost .Test results based on the modified IEEE 37 node test feeder show that the decoupled method attains much faster speed than coupled one and the robust measurement op -timal placement significantly reduces the risk of unobservability .关键词
配电系统/状态估计/关键量测解耦辨识/鲁棒量测优化配置Key words
distribution system/state estimation/decoupled identification of critical measurement/robust measure-ment optimal placement分类
信息技术与安全科学引用本文复制引用
戚艳,梁栋,董逸超,王守相..配电系统关键量测解耦快速辨识及鲁棒量测优化配置[J].电测与仪表,2017,54(19):32-38,7.
