Multi-target power distribution network reconstruction method and device considering reliability of power distribution network

Abstract

The invention relates to a multi-target power distribution network reconstruction method and device considering the reliability of a power distribution network. The method comprises the following steps: a data acquisition step: acquiring a topological relation and element information of a power distribution network system; a power distribution network reconstruction model construction step: constructing a power distribution network reconstruction model, wherein the power distribution network reconstruction model comprises a power distribution network reliability objective function and a network loss objective function; a power distribution network reconstruction scheme obtaining step: solving the power distribution network reconstruction model, and obtaining a plurality of power distribution network reconstruction schemes; and an optimal reconstruction scheme determination step: obtaining an optimal reconstruction scheme from the plurality of power distribution network reconstruction schemes obtained in the power distribution network reconstruction scheme obtaining step through expert scoring by adopting an analytic hierarchy process model. Compared with the prior art, the improvedMonte Carlo algorithm is adopted to calculate the reliability, and meanwhile, the minimum line loss and the reliability index are taken as main targets, so that the calculation efficiency of the reliability of the power distribution network is improved, and the economy of a power distribution network reconstruction scheme is improved.

Description

technical field [0001] The invention relates to the field of distribution network reconfiguration, in particular to a multi-objective distribution network reconfiguration method and device considering distribution network reliability. Background technique [0002] The optimization of the distribution network operation mode can reduce network losses and bring benefits, but the implementation must consider the influence of load balancing, power supply voltage quality, safety and reliability of the power grid, and is subject to certain constraints. Therefore, the objective function of the optimization of distribution network operation mode is not a single network loss, but a multi-objective decision-making problem. [0003] As an important measure for power grid structure optimization, network reconfiguration has attracted the attention of scholars at home and abroad. At present, the optimization goals of network reconfiguration are generally to reduce power grid line losses an...

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Problems solved by technology

[0004] For example, in the conventional distribution network reconfiguration, the objective function is based on the minimum line loss, which cannot meet the security and reliability requirements of the system.

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