基于多故障场景的配电网分布式保护自愈系统广域协同测试方法研究

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Abstract With the advancement of the construction of new-type power systems, the distributed protection and self-healing system has become a core measure to improve the power supply reliability of distribution networks. However, great difficulties exist in the field testing of the action logic of distributed feeder automation for distribution networks, and the testing of the cooperative performance of multiple testing terminals under complex fault scenarios is confronted with such challenges as insufficient synchronization accuracy, difficulties in on-site power outage and low testing efficiency. In this paper, a wide-area cooperative testing method is proposed, and a high-integrity real-time closed- loop testing platform is constructed. Based on high-precision synchronous triggering technology and cloud-edge collaborative testing technology, the platform builds a multi-terminal parallel testing system with millisecond-level synchronous excitation, which realizes the synchronization and interaction between electrical signals and control signals of intelligent terminals for distributed feeder automation. Thus, it can realistically simulate the fault characteristics and logical processing functions of the distributed feeder automation system, and conduct a multi-dimensional performance evaluation of the distributed protection and self-healing system of distribution networks. Finally, empirical verification on a 10 kV distribution network shows that the proposed method supports the fault scenario testing of various typical topological structures and significantly improves the work efficiency, providing key technical support for the engineering application of the system.

Key words： distribution networks distributed protection and self-healing system wide-area cooperative testing multi-fault scenarios empirical verification

Received: 18 March 2026

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	LI Dongsheng
	LIU Tengfei
	ZHAO Libao

Cite this article:

LI Dongsheng,LIU Tengfei,ZHAO Libao. Research on wide-area cooperative testing method for distributed protection and self-healing system of distribution network based on multi-fault scenarios[J]. Electrical Engineering, 2026, 27(9): 55-60.

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https://dqjs.cesmedia.cn/EN/Y2026/V27/I9/55

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