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Power distribution network risk planning method and system thereof

A distribution network and planning scheme technology, applied in the direction of genetic rules, instruments, data processing applications, etc., can solve problems such as failing to consider the health status of distribution equipment

Inactive Publication Date: 2018-06-05
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current DER access planning research and active distribution network planning methods fail to consider the health status of distribution equipment.

Method used

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  • Power distribution network risk planning method and system thereof
  • Power distribution network risk planning method and system thereof
  • Power distribution network risk planning method and system thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0144] The purpose of this invention is to propose a modern distribution network planning technology that integrates renewable energy access, power supply reliability and equipment health index theory, and is in line with international standards, so as to play a guiding and supporting role in further improving the distribution network planning level , effectively promoting the transformation of modern distribution network planning technology from single-objective planning to multi-objective optimization planning and asset management integration planning, laying a theoretical foundation for further improving the efficient and reliable power supply of smart distribution networks, and realizing the advancement of theoretical and technical concepts develop.

[0145] The present invention provides a distribution network risk planning method, the flow chart of which is as follows Figure 9 shown, including:

[0146] S11. Collecting raw data of the distribution network to generate a...

Embodiment 2

[0351] One, the grid structure of embodiment such as Figure 7 Shown:

[0352] This embodiment takes a substation (HV / MV, 110 / 10kV, 2×40MW) part of the medium voltage network (10kV, 8 outgoing lines, 60MVA) as the basic structure, with 5 overhead lines in total, mainly including single radiation, three-point There are three typical structures of one-segment single-connection and three-segment two-connection; three circuits of cable lines, mainly including two typical structures of same-side power supply double-injection and single-ring network. The grid structure of embodiment is as Figure 7 As shown, open-loop operation. Substation IIA bus has 1 return single-radiation, overhead long line, simulating feeder lines in remote areas such as rural areas; switching station IV, V bus has 4 return overhead lines, simulating urban feeder lines, one of which communicates with B station bus through a contact switch, and opens ring run. Substation IIB busbar has 2 cable outlets, one...

Embodiment 3

[0411] Based on the same inventive concept, the present invention also provides a distribution network risk planning system, including:

[0412] The collection module is used to collect the original data of the distribution network to generate an alternative planning scheme;

[0413] The solution module is used to set the alternative planning scheme as a chromosome, and use a genetic algorithm to solve the pre-established distribution network multi-objective optimization planning model to obtain the optimal distribution network risk planning;

[0414] The distribution network raw data includes a distribution network health index.

[0415] Further: the collection module is also used to determine a line to be newly built, a line to be transformed, and a set of non-network means to be selected based on the collected raw data of the distribution network and the equipment health index.

[0416] Further: it also includes a building module for pre-establishing a distribution network...

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Abstract

The invention relates to a power distribution network risk planning method and a system thereof. The method comprises the steps of acquiring original data of the power distribution network and generating an alternative planning scheme; setting the alternative planning scheme to a chromosome, and solving a pre-established power distribution network multi-target optimization planning model by meansof a genetic algorithm for obtaining an optimal power distribution network risk plan; wherein the power distribution network original data comprise a power distribution network health index. Accordingto the method and the system, on one hand, an asset management concept is combined, thereby realizing a more accurate power supply reliability evaluation result, effectively reducing reconstruction and changing cost of the equipment or postponing the reconstruction and changing time of the equipment, and saving investment of the power distribution network; and on the other hand, output uncertainty of distributed energy DER can be settled, thereby effectively promoting conversion of modern power distribution network planning technology from single-target planning to multi-target optimized planning and asset management integrated planning, reducing power grid investment risk and improving economic and social benefit of the power distribution network.

Description

technical field [0001] The invention relates to the technical field of distribution network planning and asset management, in particular to a distribution network risk planning method and system. Background technique [0002] With the development of society and economy and the trend of electricity marketization, especially with the formation and implementation of the concept of smart grid in recent years, the management methods of electric power enterprises are gradually formulated around the business objectives of enterprises, and the goals dominated by safety / technology in the past will turn to Comprehensive optimization of safety / technology / performance / economy / environment is the leading factor. The main goal of asset management in power distribution enterprises is to guide the purchase, use and disposal of distribution network assets, to provide customers with the required level of power supply in the most cost-effective way, including strategic planning for the entire li...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06G06N3/12
CPCG06N3/126G06Q10/0635G06Q50/06
Inventor 周莉梅盛万兴马钊惠慧尚宇炜刘伟韦涛刘苑红张伟马丽苏剑
Owner CHINA ELECTRIC POWER RES INST
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