Main station type small current grounding control method

The invention discloses a main station type small current grounding control method. Remote measure and communication information collected by an energy management system are utilized at a dispatching main station end, a small current grounding bus is automatically monitored according to the line voltage change condition, the abnormal warning is automatically given, the network topology analysis is combined, a local topology search method is adopted, a wire outlet operation switch of a target bus is analyzed and given, meanwhile, breaking-off wire selection strategies such as capacitor priority, loss load minimization, important load guarantee and the like are provided, the system can automatically generate breaking-off sequence suggestions of the circuit breaking-off test according to the selected strategies, a switch in the breaking-off strategies is subjected to on-off operation through sequence remote control, the bus voltage change condition after the operation is monitored, and whether the single-phase grounding is eliminated or not is judged, so a single-phase grounding circuit is analyzed and judged. The method has the advantages that a computer auxiliary means is provided for the single-phase fault processing mode of regional dispatching monitoring personnel, the efficiency on accident handling is improved, and the power supply reliability is forcefully guaranteed.