Circuit overload emergency control system and method based on source load collaborative coefficients

The invention discloses a circuit overload emergency control system and method based on source load collaborative coefficients, and belongs to the technical field of electrical power system overload emergency control and load shedding. The system comprises a data collecting module, a source load collaborative coefficient seeking module, a generator tripping load shedding control module, a load power supply restoration module and an overload emergency control module, and the data collecting module, the source load collaborative coefficient seeking module, the generator tripping load shedding control module, the load power supply restoration module and the overload emergency control module are connected in sequence. The method comprises the steps of collecting network structure parameters, voltages of all nodes, power currents of all the nodes, load currents and branch currents, calculating source load branch collaborative coefficients and source load distribution collaborative coefficients, determining a set of control nodes of generator tripping and load shedding, determining the adjustment control quantities of generator tripping and load shedding, selecting generators which do not take part in generator tripping control, determining the adjustment control quantities and load restoration quantities of the generators, and overlaying operation results of the generator tripping load shedding control module and the load power supply restoration module to obtain the final adjustment control quantity. According to the circuit overload emergency control system and method, the safety and the reliability of emergency control are fully guaranteed, and the economical efficiency of control is obviously improved.