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| Adaptive Section Location Method for Active Distribution Network Based on Synchronized Phasor Measurement |
| Xing Xiaodong1, Shi Fang1, Zhang Hengxu1, Sun Baicong1, Shi Zhixiong2 |
1. Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education Shandong University Jinan 250061 China;
2. Electric Power Research Institute of State Grid Shanghai Municipal Electric Power Company Shanghai 200233 China |
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Abstract Due to the large number of distributed power access, complex network topology and changeable operation mode, fault diagnosis and location of active distribution network is facing new challenges. The application of phasor measurement units (PMU) in distribution network provides new information for fault diagnosis. In this paper, a real-time updating scheme of synchronous measurement section based on adjacency submatrix is proposed by using the information of the switch position and real-time communication status of PMU, which considers the change of distribution network topology and PMU communication failures. Meanwhile, based on the three-phase voltage and current synchronous phasor data, an adaptive short-circuit fault location algorithm based on the Frobenius norm of time-space characteristic matrix is proposed. Finally, the IEEE 34 node system with distributed generators is built in PSCAD, simulation result verifies the effectiveness of the proposed algorithm.
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Received: 20 November 2019
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2020, Vol. 35 
