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Active power distribution network fault recovery method and device considering SOP

A distribution network fault and fault recovery technology, applied in the direction of circuit devices, emergency protection circuit devices, AC networks with the same frequency from different sources, etc., can solve distributed power supply and load fluctuation analysis, without considering SOP transfer capacity and other issues to achieve the effect of improving power supply recovery capability and reducing line loss

Pending Publication Date: 2022-07-05
CHINA ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on the application of SOP to distribution network fault recovery is still in its infancy. A scheme in the prior art proposes a recovery strategy for the main line fault of passive distribution network considering SOP, and uses the interior point method to solve it, but its The problem of SOP transfer capacity is not considered, and only the reduction of power loss load is taken as the optimization goal; another scheme in the prior art also studies the fault recovery method of active distribution network containing SOP, but it does not affect the distribution Detailed analysis of fluctuations in power supply and load

Method used

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  • Active power distribution network fault recovery method and device considering SOP
  • Active power distribution network fault recovery method and device considering SOP
  • Active power distribution network fault recovery method and device considering SOP

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Experimental program
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Effect test

Embodiment 1

[0057] See attached figure 1 , figure 1 It is a schematic flow chart of main steps of an active distribution network fault recovery method considering SOP according to an embodiment of the present invention. like figure 1 As shown, the active distribution network fault recovery method considering SOP in the embodiment of the present invention mainly includes the following steps:

[0058] Step S101: determine the SOP transfer capability based on the preset SOP transfer capability constraints;

[0059] Step S102: Substitute the SOP transfer capability into a pre-built active distribution network fault recovery model, and solve the pre-built active distribution network fault recovery model to obtain a distribution network branch for fault recovery On-off adjustment vector;

[0060] Wherein, the pre-built active distribution network fault recovery model includes: an objective function, model optimization variables and constraints configured for the pre-built active distributio...

Embodiment 2

[0183] In a second aspect, an active distribution network fault recovery device considering SOP is provided, such as image 3 As shown, the active distribution network fault recovery device considering SOP includes:

[0184] A determination module, used to determine the SOP transfer capability based on the preset SOP transfer capability constraints;

[0185] A solving module is used for substituting the SOP transfer capability into a pre-built active distribution network fault recovery model, and solving the pre-built active distribution network fault recovery model to obtain a distribution network for fault recovery Branch on-off adjustment vector;

[0186] Wherein, the pre-built active distribution network fault recovery model includes: an objective function, model optimization variables and constraints configured for the pre-built active distribution network fault recovery model.

[0187] Determine the SOP transfer capacity based on the preset SOP transfer capacity constr...

Embodiment 3

[0213]Based on the same inventive concept, the present invention also provides a computer device, the computer device includes a processor and a memory, the memory is used for storing a computer program, the computer program includes program instructions, and the processor is used for executing the Program instructions stored by the computer storage medium. The processor may be a central processing unit (Central Processing Unit, CPU), or other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf programmable gate arrays ( Field-Programmable GateArray, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc., which are the computing core and control core of the terminal, which are suitable for implementing one or more instructions, specifically suitable for loading And execute on...

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Abstract

The invention relates to the technical field of power distribution network fault recovery, and particularly provides an SOP-considered active power distribution network fault recovery method and device, and the method comprises the steps: determining the SOP wheeling capability based on a preset SOP wheeling capability constraint condition; substituting the SOP transfer capacity into a pre-constructed active power distribution network fault recovery model, and solving the pre-constructed active power distribution network fault recovery model to obtain a power distribution network branch on-off adjustment vector for fault recovery; wherein the pre-constructed active power distribution network fault recovery model comprises a target function, a model optimization variable and a constraint condition configured for the pre-constructed active power distribution network fault recovery model. According to the technical scheme provided by the invention, limitation of the transfer power supply capacity of the SOP in the active power distribution network is considered, power supply recovery of the power distribution network is realized, and line loss generated in a fault recovery process is reduced.

Description

technical field [0001] The invention relates to the technical field of distribution network fault recovery, in particular to an active distribution network fault recovery method and device taking SOP into account. Background technique [0002] In order to meet the needs of energy transformation and energy conservation and environmental protection, it has become an inevitable trend for the power grid to access distributed renewable energy on a large scale. Due to the time-varying nature of renewable energy, after a large number of distributed power sources are connected to the distribution network, the power flow in the system presents the characteristics of time-varying and multi-directionality, and the power exchange is more frequent, which will lead to higher voltage and current to a certain extent. Therefore, higher requirements are placed on the fault recovery capability of the distribution network. [0003] SOP is a power electronic device installed at the traditional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/38H02J3/06H02J3/14H02H7/26G06N3/00
CPCH02J3/0073H02J3/381H02J3/388H02J3/06H02J3/144H02H7/26G06N3/006H02J2203/10H02J2203/20H02J2300/20H02J2300/24H02J2310/60
Inventor 叶学顺刘科研贾东梨何开元白牧可康田园李昭王帅周俊
Owner CHINA ELECTRIC POWER RES INST
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