Dynamic Island Restoration Method for Large-area Power Outage in Active Distribution Network

Abstract

The invention belongs to the technical field of active distribution network, and specifically discloses a dynamic island recovery method for large-area power failure of active distribution network, including predicting distributed power output and load curve, obtaining the maximum recovery capacity of active distribution network, and judging faults There are five steps to recover the scene type of the scene and schedule the corresponding resources, use the method of game theory to restore the island, and optimize the recovery plan of the entire repair cycle. The dynamic island recovery method for large-area power outages in active distribution networks provided by the present invention realizes the maximum recovery of loads in power-off areas, increases the stable and continuous power supply capacity of isolated islands, and ensures the fairness of revenue distribution. , reducing the overall economic loss. The invention is applicable to the restoration of power supply after a large-area power failure of the active 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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