可观测性
计量单位
相量测量单元
相量
电力系统
可靠性工程
功率(物理)
计算机科学
网格
工程类
数学
几何学
应用数学
量子力学
物理
作者
Bin Cao,Yanlong Yan,Yu Wang,Xin Liu,Jerry Chun‐Wei Lin,Arun Kumar Sangaiah,Zhihan Lv
标识
DOI:10.1109/tii.2022.3215787
摘要
The wide area measurement system (WAMS) based on synchronous phasor measurement technology plays an increasingly important role in dynamic monitoring and wide area protection of modern power systems. If the phasor measurement unit (PMU) is placed on all buses of the power system, the voltage and branch current of all buses can be directly observed. However, due to the high placement cost of PMU and its ability to measure the voltage phasor of the installed bus and the current of the associated branch, it is unrealistic and unnecessary to install PMU on all buses of the system. This article discusses the incomplete observability under single PMU loss (N-1) contingencies and its effect on PMUs placement. An improved two-archive algorithm is proposed to solve the five-objective placement optimization model. In addition, a fuzzy decision-making method combining subjective and objective is proposed to help power grid enterprises select the most appropriate solution. The proposed method is tested on several IEEE bus systems and Polish 2383-bus system, and the test results verify its effectiveness.
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