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

A distribution network reconfiguration and reliability technology, applied in the direction of circuit devices, electrical components, AC network circuits, etc., can solve problems such as failure to meet system safety and reliability requirements, improve calculation efficiency and accuracy, reduce Effects of economic loss and workload reduction

Inactive Publication Date: 2020-09-04
SHANGHAI UNIV OF ENG SCI
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Problems solved by technology

[0004] For example, in the conventional distribution network reconfiguration, the objective function is b

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

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Example Embodiment

[0057] Example 1

[0058] This embodiment provides a multi-objective distribution network reconstruction method that considers the reliability of the distribution network. The improved Monte Carlo algorithm is used for reliability calculation, and the minimum line loss and reliability index are taken as the main goals to satisfy the load. The power rate and voltage offset conditions are mutually restricted to realize the reconfiguration of the distribution network.

[0059] Such as figure 1 As shown, the multi-objective distribution network reconstruction method includes the following steps:

[0060] Data acquisition step S1: Obtain the topological relationship and load data of the distribution network system;

[0061] Construction of a distribution network reconstruction model step S2: construct a distribution network reconstruction model, which includes a distribution network reliability objective function and a network loss objective function;

[0062] The calculation expression of...

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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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Application Information

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IPC IPC(8): H02J3/00G06Q50/06
CPCH02J3/00G06Q50/06H02J2203/20Y02E40/70Y04S10/50
Inventor 张波苏晓宇刘小康
Owner SHANGHAI UNIV OF ENG SCI
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