Restoration and optimization method of power supply partition in smart distribution network based on quasi-minimum path method

Abstract

A method for restoration and optimization of power supply partitions in smart distribution network based on quasi-minimum path method. It includes: step 1) constructing the objective function of power supply recovery and optimization; step 2) defining a quasi-minimum path and establishing a relevant index system; step 3) defining each list, and determining the content of each list; step 4) based on the quasi-minimum path method The power supply partition is restored and optimized. Combining the characteristics of high automation of the intelligent distribution network, the invention proposes a heuristic algorithm for the restoration and optimization of the power supply partition of the intelligent distribution network on the basis of defining the quasi-minimum path. The present invention can play the following functions: (1) The balance of the network structure can be better paid attention to in the process of power supply recovery. (2) In the process of power supply recovery, the uniformity of load distribution can be better paid attention to. (3) Avoid partial overload caused by general fault recovery and eliminate the possibility of fault recurrence.

Description

technical field [0001] The invention belongs to the technical field of intelligent power distribution systems, and in particular relates to a recovery and optimization method for power supply partitions of an intelligent distribution network based on a quasi-minimum path method. Background technique [0002] Smart distribution network is an important part of State Grid Corporation's construction of a unified and strong smart grid, and it is also the development trend of future power distribution systems worldwide. The smart distribution network has a complete self-healing function, among which the automatic, rapid and optimized restoration of power supply after a fault in the smart distribution network is an important part of its self-healing control technology, and it is also an important part of its guarantee of high reliability of power supply and high user satisfaction. important means. [0003] Traditional solutions to power supply restoration problems include: mathema...

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Problems solved by technology

[0004] Although the traditional methods mentioned above can effectively solve the problem of power supply restoration after a network failure, they all focus on the completion of the restoration results, while ignoring the optimization of the restoration process.

In the process of fault recovery, it is difficult to maintain the balance of the network structure, and the problem of uniform load distribution is ignored, which may easily lead to partial overloading of the network.

As for the problem of ensuring network optimization, it is even more difficult to achieve

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