Differentiated evaluation method for county-area power distribution network plan
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A distribution network planning and differentiation technology, applied in data processing applications, instruments, calculations, etc., can solve the problems of difficult data acquisition, high cost of manpower and material resources, and achieve the effect of promoting the overall quality of the power grid
Inactive Publication Date: 2017-02-08
STATE GRID CORP OF CHINA +2
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The limitations of this paper include the following three points: 1. It can only be used for the evaluation of high-voltage distributi
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Embodiment 1
[0026] A differential evaluation method for county distribution network planning, the method includes the following steps:
[0027] a. According to the category division method of the power supply area of the State Grid Corporation, determine the area category of the grid planning area to be evaluated;
[0028] b. According to the characteristics of the regional category, experts increase or decrease the evaluation indicators in the State Grid Corporation standard distribution network evaluation table, and obtain the regional category evaluation index system with N indicators;
[0029] c. For the kth index in the category evaluation index system of the area, experts give m different index values (x k1 x k2 x km ) T The corresponding score value Y k =(y k1 the y k2 L y km ) T , using the overall least square method to construct the scoring function of each index, where k=1, 2, ..., N;
[0030] d. Experts rank the relative importance of the N indicators in the ev...
Embodiment 2
[0035] A differential evaluation method for county distribution network planning, the method includes the following steps:
[0036] According to the category classification method of the power supply area of the State Grid Corporation, determine the area category of the power grid planning area to be evaluated, as shown in Table 1.
[0037] Table 1 Classification of Power Supply Areas by State Grid Corporation of China
[0038]
[0039] According to the characteristics of the regional category, the experts increase or decrease the evaluation indicators in the standard distribution network evaluation table of the State Grid Corporation of China, and obtain the evaluation index system of the regional category with N indicators (as shown in Table 2);
[0040] Table 2 Evaluation Form of Distribution Network Planning in a Province
[0041]
[0042]
[0043]
[0044] Then for the kth index, k=1, 2, ..., N; experts give m different index values (x k1 x k2 x km )...
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Abstract
The invention discloses a differentiated evaluation method for county-area power distribution network plan, wherein the method relates to power distribution network plan evaluation. The method aims at the characteristic of a to-be-evaluated power distribution network plan area, thereby determining an evaluation index system. A total least square method is utilized for constructing a scoring function of each index. A subjective analyzing method in which a fuzzy analytical hierarchy process and a G1 method is combined is utilized for determining weight configuration of each index. According to predicated data of each year in future in planning, a total score of each year in future is generated, and evaluation is performed on the to-be-evaluated power distribution network plan according to the total score. The differentiated evaluation method is advantageous in that scientific, integrated and comprehensive evaluation can be performed on the power distribution network plan in future; differentiated evaluation can be performed on the power distribution network plan according to an actual development requirement for aiming at the characteristic of the to-be-evaluated county-area power distribution network; and relatively long years of year-by-year comparing can be performed on the power distribution network plan in future, thereby performing a guiding function in power distribution network plan improvement and promoting integral quality improvement of a power grid.
Description
technical field [0001] The present invention relates to the evaluation of distribution network planning, more specifically to the evaluation of county distribution network planning. Background technique [0002] The scientific and reasonable division of power grid areas has always been a research hotspot in the development of power grids. By dividing multiple local distribution networks in a large area, the development direction and route of different types of distribution networks can be studied, so that Differentiation meets the overall development needs of the power grid in the region. [0003] The division of power grid areas is affected by many factors such as the average power supply radius of the main line, the proportion of cross-sectional radius that meets the requirements of the regulations, the reliability rate of power supply, and the pass rate of comprehensive voltage. These factors will affect industrial production and daily life of users, threatening Therefor...
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