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Power distribution network investment method based on reliability planning

A technology of reliability and distribution network, applied in the field of power distribution network, it can solve the problems of huge number of distribution network equipment, inability to give reference to power grid projects, over-investment in distribution network, etc., to increase pertinence and efficiency. Effectiveness, easy to master and operate, the effect of scientific analysis method

Inactive Publication Date: 2014-09-17
STATE GRID CORP OF CHINA +1
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Problems solved by technology

Under the constraints of fixed grid investment, this method cannot give reference to the focus of grid projects, and due to the huge number of distribution network equipment, using this method to guide investment directions will cause over-investment in distribution networks

Method used

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  • Power distribution network investment method based on reliability planning

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Embodiment Construction

[0020] The distribution network investment method based on reliability planning provided by the present invention will be described in detail below with reference to the drawings and specific embodiments.

[0021] like figure 1 As shown, the distribution network investment method based on reliability planning provided by the present invention includes the following steps performed in sequence:

[0022] Step 1) Determine the S01 stage of the planning area: the distribution network planner determines the planning area, and collects the status data of the distribution network in the planning area;

[0023] Step 2) Analyzing the S02 stage of the weak link of the distribution network: the distribution network planner uses the distribution network planning auxiliary calculation software in the computer to analyze the distribution network in terms of construction scale, safe operation, utilization efficiency, equipment life and equipment level. Development situation, judge the devel...

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Abstract

A power distribution network investment method based on reliability planning includes the steps of determining a planning area, analyzing weak links of a power distribution network, setting reliability targets by comparing power supply zones, arranging planning projects according to the weak links of the power distribution network, calculating scheme reliability of the planning projects, judging whether the scheme reliability meets the set reliability targets or not, determining a scheme with the lowest unit investment, determining the planning projects and the like. The power distribution network investment method based on reliability planning has the advantages that the different reliability targets are set according to different zone characteristics, the projects of the power distribution network are arranged reasonably according to investment sensibility of different optimization measures of the weak links of the power distribution network, the investment orientation is controlled, the pertinence and effectiveness of investment of the power distribution network are increased, and therefore the power distribution network investment method based on reliability planning is more scientific and comprehensive. The power distribution network investment method based on reliability planning provides beneficial reference for investment of the power distribution network by power distribution network planning personnel, provides powerful technical support for later power distribution network planning work and is easy to master and operate, and people can easily understand setting of the reliability targets of the power distribution network, ranking of the planning projects and other aspects.

Description

technical field [0001] The invention belongs to the technical field of electric power distribution network, and in particular relates to a distribution network investment method based on reliability planning. Background technique [0002] In the power system, the currently commonly used distribution network planning method based on anticipated accidents is to use analysis tools (power flow, stability) to judge whether it is overloaded or low voltage or other unacceptable conditions when a certain component exits the system. cause of failure. But the downside of this planning approach is that it is not particularly effective in focusing on cost reduction and limited budgets. [0003] In addition, this type of method is to set a deterministic N-1 criterion, and any component that does not meet the N-1 criterion needs to make up for the defects of the grid through grid investment. This type of method focuses on the improvement of the grid and ignores the limitation of grid in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
Inventor 王哲梁群宗志刚徐晶谢秦崔荣靖李娟刘冬梅刘英英祁彦鹏夏冬张梁张雪菲张章
Owner STATE GRID CORP OF CHINA
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