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Power distribution network voltage control method, device and equipment and storage medium

A voltage control method and voltage control technology are applied in the field of power system and can solve the problems of long time consumption and difficult convergence.

Active Publication Date: 2021-04-20
STATE GRID HEBEI ELECTRIC POWER RES INST +2
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a distribution network voltage control method, device, equipment and storage medium to solve the time-consuming problem caused by the joint optimization of reactive power optimization and network reconfiguration in the prior art Long and difficult to converge problem

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  • Power distribution network voltage control method, device and equipment and storage medium
  • Power distribution network voltage control method, device and equipment and storage medium
  • Power distribution network voltage control method, device and equipment and storage medium

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Embodiment Construction

[0108] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0109] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.

[0110] As described in the background technology, as the penetration rate of distributed photovoltaics in the distribution network increases, the node voltage limit problem caused by the fluctuation of its output becomes more and more serious. The traditional reactive p...

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Abstract

The invention provides a power distribution network voltage control method, a device and equipment and a storage medium, and is suitable for the technical field of power systems, and the method comprises the steps: obtaining the operation parameters of a target power distribution network, wherein the operation parameters at least comprise a parallel capacitor parameter, a branch parameter and a distributed photovoltaic parameter; establishing a non-convex model for reactive compensation and network reconstruction joint optimization of the target power distribution network according to the operation parameters; establishing a mixed integer second-order cone programming model according to a preset target function taking active power loss minimization as a target, a preset constraint condition and the non-convex model; and solving the mixed integer second-order cone programming model to obtain a voltage control parameter of the target power distribution network, and controlling the voltage of the target power distribution network according to the voltage control parameter. By adopting the method, the solving time of reactive compensation and network reconstruction joint optimization can be shortened, and the optimal solution can be quickly obtained.

Description

technical field [0001] The invention belongs to the technical field of power systems, and in particular relates to a distribution network voltage control method, device, equipment and storage medium. Background technique [0002] With the increasing penetration of distributed photovoltaics in the distribution network, the problem of node voltage exceeding the limit caused by the fluctuation of its output is becoming more and more serious. Usually, the reactive power optimization of the distribution network is used to suppress the voltage exceeding the limit. The traditional reactive power optimization problem of distribution network is a mixed integer nonlinear optimization problem, which has typical non-convexity and contains both continuous and discrete decision variables. For this reason, many methods have been proposed to solve this mixed integer nonlinear optimization problem. One is intelligent optimization algorithms including simulated annealing and genetic algorithm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/12H02J3/16H02J3/38
CPCY02E40/30
Inventor 李晓明于腾凯李晓军戎士洋杨潇董靓媛李安昌
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
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