Active power distribution network large-area outage dynamic island recovery method

Abstract

The invention belongs to the technical field of active power distribution networks, and particularly discloses an active power distribution network large-area outage dynamic island recovery method. The method comprises five steps: predicting output and load curves of the distributed power supply, obtaining the maximum recovery capability of the active power distribution network, judging the scenetype to which a fault recovery scene belongs, scheduling corresponding resources, carrying out island recovery by adopting a game theory method, and optimizing the recovery scheme of the whole recovery period. According to the active power distribution network large-area outage dynamic island recovery method, the maximum recovery of the load capacity of the power loss area is realized, the stableand continuous power supply capacity of the island is improved, the fairness of income distribution is ensured, and the comprehensive economic loss is reduced. The method is suitable for power supplyrecovery after large-area power outage of the active power distribution network.

Description

technical field [0001] The invention belongs to the technical field of active distribution networks, and relates to the field of active distribution network failure recovery, in particular to a dynamic island recovery method for large-area power failures in active distribution networks. Background technique [0002] Active distribution network (active distribution network, ADN) is a distribution network with internal distributed or decentralized energy, with control and operation capabilities. Compared with traditional distribution networks, it has a greater ability to accept renewable energy. And higher asset utilization, in addition, it can also realize active management of distributed generation (distributed generation, DG), energy storage system, controllable load and active control of network power flow. However, while the operation and control methods of the active distribution network become flexible and complex, the probability of failure also increases corresponding...

AI Technical Summary

Problems solved by technology

[0004] With the gradual deepening of the electricity market, a variety of distributed resources are willing and able to participate in the emergency dispatch of the system, but there are bound to be problems of multi-party interest competition and balance in the participation process

Game theory, also known as "game theory", is a branch of modern mathematics. It can be applied to the power system to solve the problem of multi-party interest competition and balance, and has achieved good results. However, it is very difficult to apply in the distribution network fault recovery. Few, especially the lack of applications in the recovery of large-area power outages in active distribution networks

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