Research on Single-phase Grounding Line Selection Method for Distribution Network Containing New Energy

With energy shortages and environmental pollution problems becoming more and more serious, new energy electric energy has been rapidly developed and applied in the power system. Since most new energy electric energy needs to be connected to the power distribution system through an inverter device, this type of new energy electric energy is called an inverter-type distributed power source. With the access of distributed power sources, the power distribution system has changed from a single power source to a multi-power source system, and the system structure has changed. This brings great challenges to relay protection and fault line selection in the distribution network. Therefore, this article discusses the problem of single-phase grounding fault line selection in distribution network with inverter-type distributed power generation. (paper)