An energy storage power station layout method to solve the problem of power flow congestion
A technology of energy storage power station and layout method, which is applied in the direction of electrical components, energy storage, and electric energy storage systems, etc., can solve problems such as power flow congestion of energy storage power station lines that are not considered, and achieve good economic benefits, simple steps, and simple calculations Effect
Active Publication Date: 2021-02-23
NARI TECH CO LTD +3
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Problems solved by technology
[0003] The purpose of the present invention is to propose an energy storage power station layout method to solve the problem of power flow congestion, and plan the energy storage power station from the perspective of the power flow congestion problem of the access line, which solves the problem of using the energy storage power station to solve the problem in the prior art. flow congestion problem
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[0079] In order to verify the validity of the scheme of the present invention, the method of the present invention is adopted to carry out the following experiments.
[0080] Step 1. The near-area node where the power flow congested line is located is used as the waiting access point of the energy storage power station, and the near-area node among them should be the near-area node of the power flow sending end, combined with figure 2 In the figure, the power flow limit of the Xianghe line and the Xiangmu line are both 390MW, but the actual transmission power flow of the Xianghe line reached 545.599MW, and the transmission power flow of the Xiangmu line also reached 538.837MW, both of which greatly exceeded the line power flow limit . At the same time, it can also be seen that the power flow of the line is transmitted from Zhehexi and Zhemutian to Zhewanxiang, so Zhehexi and Zhemutian can be selected as the candidate access points of the energy storage power station.
[0081...
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The invention discloses a method for arranging an energy storage power station to solve the problem of power flow congestion, which includes the location arrangement of the energy storage power station and the capacity arrangement of the energy storage power station; according to the location of the power flow congestion line, a node in the near area is selected as the waiting access point of the energy storage power station , select the access point with the highest sensitivity to the power flow of the congested line as the actual access point of the energy storage power station to form a location scheme for the energy storage power station; construct an objective function with the highest economic benefit after the power flow congested line is connected to the energy storage power station , using the particle swarm optimization algorithm to solve the objective function, and obtain the capacity layout scheme of the smart power station. The arrangement of the energy storage power station obtained by using the method of the invention not only makes the calculation simpler and more convenient, but also enables a more reasonable selection of the capacity of the energy storage power station to obtain better economic benefits.
Description
technical field [0001] The invention relates to the technical field of power system optimal configuration, in particular to an energy storage power station arrangement method for solving the problem of power flow congestion. Background technique [0002] Due to the advantages of low pollution, large reserves, and recyclable utilization, renewable energy has received strong support from all walks of life. However, the output of renewable energy is not stable and is greatly affected by environmental factors. When renewable energy in the grid When the proportion is too high, it will have a negative impact on the safe operation of the power grid. For example, during the flood season, when hydropower is generated in large quantities, excessive power generation will easily lead to the situation that the flow exceeds the limit on the evacuation line, posing a threat to the operation of the power grid. The layout of the energy storage power station can absorb a certain amount of ac...
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IPC IPC(8): H02J3/28H02J15/00
CPCH02J3/008H02J3/28H02J15/00Y02E70/30
Inventor 邹德龙郄朝辉李威刘福锁李兆伟黄慧胡阳吴雪莲陶泉霖倪禛霖马骏超黄弘扬宣晓华陆承宇楼伯良华文彭琰
Owner NARI TECH CO LTD