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New energy station energy storage configuration calculation method and system

A new energy and energy storage technology, which is applied in the calculation method and system field of energy storage configuration of new energy stations, can solve the problems that the calculation method is not flexible enough, and rarely considers the matching of joint output curve and load curve, etc., so as to promote the consumption of new energy. Satisfying and reducing the effect of peak shaving pressure

Active Publication Date: 2021-10-22
XI AN JIAOTONG UNIV
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Problems solved by technology

[0003] Since the new energy supporting energy storage policy has just been proposed, there are few existing studies on how to configure energy storage for new energy stations, and in the research, it is usually considered that the fluctuation variance of the joint output of new energy and energy storage is the smallest, and the combined output is rarely considered. The output curve matches the load curve, and the calculation method is not flexible enough

Method used

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  • New energy station energy storage configuration calculation method and system
  • New energy station energy storage configuration calculation method and system
  • New energy station energy storage configuration calculation method and system

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Embodiment

[0217]In order to verify the validity of the method proposed in the present invention, a test system is selected for calculation and analysis. The system can be divided into two regions. Region A has a maximum annual load of 10,421MW, including a new energy power generation base with an installed capacity of 7,000MW, and the annual power generation ratio of new energy accounts for 26.71% of the load. The installed capacity of a wind farm is 200MW, and the annual power generation ratio of the wind farm accounts for 1.67% of the load electricity. According to the method of the invention, energy is stored in this configuration.

[0218] The K-means clustering method is used to cluster the curves of the whole year, and 8 typical planning scenarios of the two regions are obtained respectively. Set the proportion range of new energy supporting energy storage capacity to 0-30%, and the ratio of energy storage investment capacity to investment power is 1:4.

[0219] Analysis of the ...

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Abstract

The invention discloses a new energy station energy storage configuration calculation method and system. The method comprises the steps: designing a standardized supply curve for different new energy installation scales, i.e., configuring a new energy station planned output curve after energy storage, and building a supply curve deviation degree index. By weighing the energy storage investment cost and the supply curve deviation cost, a new energy station energy storage configuration optimization model is established, the model can calculate the optimal capacity ratio between the new energy and the stored energy under the condition of the existing new energy installation scale and the load level of the power system, and on the premise of ensuring the energy storage investment economy, the peak regulation pressure of the new energy on the power system is reduced, and the new energy consumption is promoted.

Description

technical field [0001] The invention belongs to the technical field of multi-energy complementary power supply planning in electric power systems, and in particular relates to a calculation method and system for energy storage configuration of new energy stations. Background technique [0002] With the large-scale integration of new energy into the grid, the randomness of the power supply side has an increasing impact on the power system, the pressure of peak regulation increases, and the network power flow is uneven, which makes system planning and operation encounter great challenges. Recently, the new energy supporting energy storage policy has been put forward, requiring the construction of new energy storage facilities for new energy stations to relieve the peak pressure of the system. There are regional differences in the output characteristics and load demand characteristics of new energy sources. Therefore, it is necessary to study a set of energy storage configurati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCG06Q10/04G06Q10/067G06Q50/06Y04S10/50
Inventor 王建学杨钤刘子拓古宸嘉鲍国俊尹鸿睿
Owner XI AN JIAOTONG UNIV
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