A solution method for optimal cell division scheme of distribution network
A cell and distribution network technology, applied in electrical digital data processing, instruments, data processing applications, etc., can solve the problem of low cell division efficiency of distribution network, save time and manpower, and improve accuracy.
Active Publication Date: 2022-07-08
STATE GRID JIANGSU ELECTRIC POWER CO LTD TAIZHOU POWER SUPPLY BRANCH +1
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Problems solved by technology
At present, there is still a lack of methods to solve the optimal scheme for the division of distribution network cells in the relevant research results, resulting in the problems of strong subjectivity and low division efficiency in the division of distribution network cells
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Embodiment Construction
[0019] The present invention will be described in detail below with reference to the accompanying drawings.
[0020] 1. First, evaluate the pros and cons of the cell division scheme from the two perspectives of the concentration of load points in the cell and the number of times the cell is cut by the dividing line. The specific steps for quantitative evaluation are as follows:
[0021] (1) Calculate the geometric center of all load points in each cell, and calculate the average value from each load point to the geometric center. The specific method is:
[0022] Suppose there are m load points in the i-th cell, and the coordinates of the j-th load point are (x j ,y j ), then the geometric center coordinates of all load points in the i-th cell are The average distance from each point in the i-th cell to the geometric center is
[0023] (2) Count the number of times each cell is cut by the dividing line, the specific steps are:
[0024] ①Find out the abscissa range of all...
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The invention discloses a method for solving an optimal division scheme of a distribution network unit cell, comprising the following steps: Step 1, determining an evaluation method for the pros and cons of the distribution network cell division scheme, and considering that the more concentrated the load points in the cell are , the division scheme with fewer roads, railways, rivers, etc. that the cell spans is better; step 2, according to the given needs, the distribution network area and the given number of cell divisions are divided into cells. Class algorithm, the load points that are close to each other are divided into the same cell, and the initial cell division scheme is determined accordingly; step 3, the initial cell division scheme is adjusted to reduce the number of cells crossing the dividing line as much as possible. , and at the same time ensure the relative concentration of load points in the cell. The specific method is to find the sub-areas divided by the dividing line in each cell. If the sub-area contains few load points, consider dividing these load points nearby. In order to reduce the number of times that the cell crosses the dividing line; step 4, further optimize the preliminarily adjusted cell division scheme, if the load points in a cell are no longer concentrated, then the The load points whose geometric centers are far apart are assigned to the nearby cells.
Description
technical field [0001] The invention relates to the generation of an optimal division scheme of a distribution network unit cell, and belongs to the field of distribution network planning. Background technique [0002] Reasonable planning of distribution network is of great significance to ensure the economical, safe and reliable operation of the power grid, to meet the development needs of power load, and to rationalize resource allocation. The traditional power distribution network lacks unified planning and construction, resulting in ambiguous power supply range, complicated connection relationship, and more circuitous power supply and excessively long power supply radius, resulting in more and more prominent power supply bottlenecks. [0003] In response to this problem, domestic and foreign scholars have carried out extensive research on distribution network planning. Because the domestic distribution network does not have the highly reliable grid structure and the ref...
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IPC IPC(8): G06F30/18G06Q50/06G06F113/04
CPCG06F30/18G06Q50/06G06F2113/04Y04S10/50
Inventor 祁晖
Owner STATE GRID JIANGSU ELECTRIC POWER CO LTD TAIZHOU POWER SUPPLY BRANCH