期刊
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS
卷 19, 期 6, 页码 7636-7644出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TII.2022.3215787
关键词
Multiobjective; N-1 transmission contingencies; optimal PMU placement; phasormeasurement unit (PMU)
The wide area measurement system based on synchronous phasor measurement technology is crucial for dynamic monitoring and wide area protection in modern power systems. This article discusses incomplete observability under single PMU loss and its impact on PMU placement, proposing an improved two-archive algorithm for placement optimization and a fuzzy decision-making method for selecting the best solution. Tests on IEEE bus systems and the Polish 2383-bus system confirm the effectiveness of the proposed method.
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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