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Multi-energy system capacity optimization method based on hydrogen-heat hybrid energy storage device

A hybrid energy storage and system capacity technology, applied in system integration technology, information technology support system, resources, etc., can solve the problems of expensive battery energy storage, high investment cost and high energy loss

Active Publication Date: 2020-06-02
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology

Due to the relatively expensive energy storage of traditional batteries and the lack of research on the coordinated configuration of hydrogen storage devices and heat storage devices, there are still deficiencies in the coordination process of energy supply and load consumption, and the investment cost and energy loss are relatively high; the present invention To deal with the above problems, and according to energy output fluctuations and different load demands, considering the investment and stand-alone capacity of hydrogen storage devices and heat storage devices, a coordinated configuration strategy based on hydrogen storage devices and heat storage devices is proposed to ensure multi-energy Energy supply reliability and economy of the system

Method used

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  • Multi-energy system capacity optimization method based on hydrogen-heat hybrid energy storage device

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Embodiment Construction

[0050] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0051] This embodiment takes a multi-energy system in a certain area as an example. When the initial time t=1, the total amount of renewable energy power generation P pro (t) is 500MW, conventional load power P com (t) is 301MW, α=0.1 is the heat dissipation loss rate of the heat storage device; heat absorption power Q HS_ch (1) = 70MW, heat absorption efficiency η hch =0.9; Heat release power Q HS_dis (1)=16MW, heat release efficiency η hdis =0.8; the total hydrogen production is The total hydrogen consumption is The hydrogen storage capacity of the hydrogen storage device N(0) = 33MW, and the heat storage capacity of the heat storage device H HS (0)=50MW; the si...

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Abstract

The invention discloses a multi-energy system capacity optimization method based on a hydrogen-heat hybrid energy storage device. The invention belongs to the technical field of multi-source energy storage of multi-energy systems. According to the method, the source-load characteristics and the advantages and disadvantages of a hydrogen storage device and a heat storage device are fully combined,the hydrogen storage device and the heat storage device are combined to form a hydrogen-heat hybrid energy storage system, and when source output of a multi-energy system cannot meet the load requirement, a hydrogen-oxygen fuel cell and temperature difference power generation are adopted for supplementing the vacancy electric energy. According to the invention, the capacity optimization configuration model taking the investment cost of the hydrogen-heat hybrid energy storage device as the target function is established based on the hydrogen storage device model, the heat storage device model and the net load power, and the optimal energy storage capacity configuration is optimized by adopting the artificial ant colony algorithm, so that the investment cost can be reduced on the premise ofensuring the reliable energy supply of the system.

Description

technical field [0001] The invention relates to the technical field of multi-energy system multi-source energy storage, in particular to a method for optimizing the capacity of a multi-energy system based on a hydrogen-thermal hybrid energy storage device. Background technique [0002] In a multi-energy system, the output of renewable energy such as wind and light fluctuates greatly, and there is often an imbalance between the output of renewable energy and the load demand, which seriously affects the reliability of the energy supply of the multi-energy system; for example, the large output of wind power at night , the load demand is small, in order to accommodate the curtailed wind and ensure the stable operation of the system, an energy storage device is introduced to stabilize the output power of the system, so how to configure the capacity of the energy storage device is very important to the reliability and economy of the system. Due to the relatively expensive energy s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06G06N3/00
CPCG06Q10/04G06Q10/067G06Q50/06G06N3/006Y04S10/50Y02E40/70
Inventor 滕云朱祥祥左浩郑晨袁浦徐震魏来鲍瑞马俊雄顾翔
Owner SHENYANG POLYTECHNIC UNIV
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