Improved distribution line no-channel protection method and device, storage medium and processor

The invention relates to the technical field of power system relay protection, in particular to an improved distribution line no-channel protection method and device, a storage medium and a processor. Based on an existing non-channel protection method, non-channel protection low-voltage criteria are improved, and calculation and comparison of sequence components are added, so that the fault of the line and the fault of the adjacent line can be accurately distinguished, the reliability of the whole scheme is improved, accidental power failure caused by fault protection maloperation of the adjacent line is avoided, and the reliability of the whole scheme is improved. The short-circuit fault of the distribution line is quickly and accurately identified, the fault section is accurately isolated, and the power supply reliability of the distribution line is improved. 本发明涉及电力系统继电保护技术领域，特别涉及一种改进的配电线路无通道保护方法、装置、存储介质及处理器。本发明基于现有的无通道保护方法，通过改进无通道保护低电压判据，增加了序分量的计算和比较，如此能准确区分本线路故障和相邻线路故障，提升了整体方案的可靠性，避免了相邻线路故障保护误动导致的意外停电，实现