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Double-tower type gravity energy storage power station day-ahead scheduling method considering uncertainty

An energy storage power station, an uncertain technology, applied in the field of high-efficiency energy storage, can solve the problems that the application potential of the double-tower gravity energy storage cannot be fully utilized, and the lack of a scheduling system for the double-tower gravity energy storage, so as to achieve a good energy storage potential , the effect of strong adaptability

Pending Publication Date: 2022-07-26
XI AN JIAOTONG UNIV
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Problems solved by technology

At present, there is no scheduling method for double-tower gravity energy storage. The traditional energy storage scheduling system lacks the modeling of the characteristics of double-tower gravity energy storage. Application potential of mobilizing twin-tower gravity energy storage

Method used

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  • Double-tower type gravity energy storage power station day-ahead scheduling method considering uncertainty
  • Double-tower type gravity energy storage power station day-ahead scheduling method considering uncertainty
  • Double-tower type gravity energy storage power station day-ahead scheduling method considering uncertainty

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Embodiment Construction

[0099] The present invention will be further described below with reference to the accompanying drawings. However, the content of the present invention is not limited to this.

[0100] see figure 1 , a method for scheduling a double-tower gravity energy storage power station before the present invention considering uncertainty includes the following steps:

[0101] S1. Obtain relevant parameters and power market data of the actual double-tower gravity energy storage system;

[0102] S2. According to the electricity market data, determine whether the electricity price is known. When the electricity price is known, use the relevant parameters of the double-tower gravity energy storage system, and consider the physical characteristics of the double-tower gravity energy storage system. For the day-ahead scheduling model of gravity energy storage, the linearization method is used to reconstruct the charge and discharge power constraints to improve the model solution efficiency; ...

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Abstract

The invention discloses a day-ahead scheduling method considering uncertainty for a double-tower type gravity energy storage power station. The day-ahead scheduling method comprises the following steps: acquiring actual parameters of a double-tower type gravity energy storage system; under the condition that the day-ahead electricity price is known, according to system parameters, a double-tower type gravity energy storage day-ahead scheduling model is constructed and solved, and a gravity energy storage system optimization scheduling scheme is obtained; scheduling according to the scheme; under the condition that the day-ahead electricity price is unknown, a gravity energy storage power station probability distribution robust day-ahead scheduling model is constructed according to system parameters, a gravity energy storage power station probability distribution robust day-ahead scheduling scheme is obtained through solving, and scheduling is carried out according to the scheme. According to the method, the double-tower type gravity energy storage system can follow the electricity price signal to move the bricks in the day-ahead scheduling to achieve the purpose of arbitrage, and the expectation of the system for obtaining benefits in the day-ahead electricity market can be maximized even under the condition of the worst probability distribution of the electricity price, so that the energy storage potential of the double-tower type gravity energy storage system can be better exerted.

Description

technical field [0001] The invention belongs to the technical field of high-efficiency energy storage in power systems, in particular to the problem of day-ahead scheduling of a double-tower gravity energy storage power station, and relates to a day-ahead scheduling method of a dual-tower gravity energy storage power station considering uncertainty. Background technique [0002] The increase in the penetration rate of renewable energy has brought great challenges to the dispatching and operation of the power system, and the rational allocation of energy storage can hedge the uncertainty of renewable energy. However, traditional energy storage has certain limitations, such as high unit cost and construction conditions. Harsh and inefficient, etc. As a new type of mechanical energy storage technology, double-tower gravity energy storage not only has excellent regulation performance, but also has no restrictions on the geographical environment, and the unit power generation cos...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06G06F30/20G06F111/04
CPCG06Q10/06312G06Q50/06G06F30/20G06F2111/04
Inventor 王秀丽郎青勇李乃亮吴雄
Owner XI AN JIAOTONG UNIV
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