Transmission grid restoration method based on multi-agent and thermal power unit cluster simulation

Abstract

The invention relates to a power transmission grid frame recovering method based on a plurality of intelligent bodies and cluster simulation of a thermal power generating unit. According to the method, a scheduling intelligent body, a power plant intelligent body taking a thermal power generating unit simulation cluster as an inner core, and a transformer substation intelligent body are included. The method comprises the following steps: firstly, simulating identification and acquisition of real-time available recovering information of power generation and power transformation links by scheduling in a power transmission grid frame recovering process through bidirectional information interaction among the power plant intelligent body, the transformer substation intelligent body and the scheduling intelligent body; secondly, realizing centralized decision optimization of a unit recovering sequence and rid frame construction based on the scheduling intelligent body; finally, carrying out unidirectional control on the power plant intelligent body and the transformer substation intelligent body by the scheduling intelligent body so as to finish simulation operation of the recovering process. According to the method, a responding process of recovering the thermal power generating unit and different power transformation and power transmission operation complexities are sufficiently simulated, and obtained parameters including recovering time, recovering power generation and the like can sufficiently reflect actual effects after a recovering strategy is executed, so that the power transmission grid frame recovering method has real guidance meanings on the power transmission grid frame recovering process.

Description

technical field [0001] The invention belongs to the field of power system security defense and restoration control, and in particular relates to a power transmission grid frame restoration method based on multi-agent and thermal power unit cluster simulation. Background technique [0002] In recent years, a number of large-scale power outages have occurred around the world, which fully shows that in the context of the increasingly strengthened power system structure and the gradual improvement of the monitoring and control level, large-scale power outages are still a serious threat to modern power systems. As one of the important measures for power system security defense, it is of great significance to study the rapid recovery of partially isolated systems after a large power outage to reduce economic losses and social unrest caused by accidents. [0003] The goal of transmission grid restoration after a major power outage is to quickly and safely restore the power generati...

AI Technical Summary

Problems solved by technology

Since the existing methods only focus on the optimization strategy of the restoration of the transmission grid, and are not combined with the actual restoration process, especially the response process of the recovery of thermal power units and the switching operation process of the substation, which account for a relatively high proportion of the power system, are not involved. The obtained parameters such as recovery time and recovery power generation cannot reflect the actual effect after the strategy is implemented, and it is difficult to effectively guide the specific process of grid recovery based on the optimization strategy

Images