Prospective target framework design method based on saturation load
A technology of target grid and design method, applied in the field of long-term target grid design based on saturated load, can solve the problems of high cost, low efficiency, unreasonable substation location and capacity design, etc., to achieve cost reduction, power supply optimization, The effect of improving the reliability of power supply
Inactive Publication Date: 2015-07-15
STATE GRID CORP OF CHINA +1
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Problems solved by technology
At this stage, the planning and design of the power grid is mainly for 5 to 15 years, and there is little involvement in the regional long-term target grid structure, and in the process of establishing the grid structure, due to the unreasonable site selection and capacity design of the substation, the high cost of establishing the grid structure cost, inefficiency
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[0019] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0020] refer to figure 1 and figure 2 , the design method of the long-term target grid frame based on the saturated load of the present invention comprises the following steps:
[0021] 1) Divide the area to be designed into several load areas, obtain the geographic location information of each load area, and predict the load of each load area;
[0022] 2) Preset the number of established substations, and then take the capacity and location of each substation as independent variables to construct a target model with the minimum cost sum f, wherein the target model with the minimum cost sum f is:
[0023] min f=f 1 +f 2 +f 3
[0024] in, c is the cost of the new substation, k is the capital recovery rate, m is the capital recovery period, f 2 is the running variable cost fee, f 2 =(1+a)f 1 , a is constant, a is 15%, l j is the total length of the line fr...
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The invention discloses a prospective target framework design method based on saturation load. The method comprises steps as follows: 1), a to-be-designed region is divided into a plurality of load zones, geographical location information of each load zone is acquired, and load of each load zone is predicted; 2), the number of transformer substations required to be built is preset, and a target model with the minimum total expense is established with capacity and positions of all transformer substations serving as independent variables; 3), the target model with the minimum total expense in the step 2) is solved, and the position and the capacity of each transformer substation are obtained; 4), a networking structure of a distribution network is selected, the transformer substations and the load zones are connected according to the networking structure of the distribution network, and a prospective target framework for the to-be-designed region is obtained. Design of the prospective target framework is realized, and the cost is low. The invention provides the prospective target framework design method based on saturation load in order to achieve the purposes.
Description
technical field [0001] The invention belongs to the field of power grid planning, relates to a grid frame design method, and in particular relates to a long-term target grid frame design method based on saturated load. Background technique [0002] Power grid planning is an important part of economic and social development planning. A scientific, economical and reasonable power grid planning can not only guide the future construction and development of the power grid, improve the power supply capacity and reliability of the power system, and meet the needs of people's lives and economic and social development for power, but also can achieve good economic and social benefits. . At the same time, the changes in energy structure and power consumption structure, the rapid growth of power load and the continuous improvement of power supply reliability requirements have also brought many new challenges to power grid planning. Therefore, under the new background, it is of great t...
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IPC IPC(8): G06Q10/04G06Q50/06
Inventor 贾宏刚魏磊王乃永朱岸明姜山王炜
Owner STATE GRID CORP OF CHINA