A method for improving energy utilization in a multi-energy system containing a hydrogen storage device

A hydrogen storage device and multi-energy technology, applied in the power system and multi-energy field, can solve the problems of high price of electricity storage, low energy utilization efficiency, abandoned wind, etc. Effect

Active Publication Date: 2021-08-24
SHENYANG POLYTECHNIC UNIV
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Problems solved by technology

In the operation of traditional multi-energy systems, most of the energy storage systems are mostly electricity storage. The disadvantage is that electricity storage is expensive, which leads to serious abandonment of wind and light. Great waste of renewable energy and low efficiency of energy utilization

Method used

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  • A method for improving energy utilization in a multi-energy system containing a hydrogen storage device
  • A method for improving energy utilization in a multi-energy system containing a hydrogen storage device
  • A method for improving energy utilization in a multi-energy system containing a hydrogen storage device

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Embodiment Construction

[0071] 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.

[0072] Taking the multi-energy energy supply system in a certain area as an example, the installed capacity of wind turbines is 40MW, the installed capacity of photovoltaics is 30MW, the installed capacity of power-to-hydrogen is 10MW, and the installed capacity of hydrogen storage is 20MW; the installed capacity of electric boilers is 15MW, and the installed capacity of hydrogen boilers is 5MW; The installed capacity of hydrogen fuel cell is 10MW; η e 92%; η P2G 79%; η hot,c 92.7%; η hot，H2 97.8%; λ w is 50%; λ p is 37.5%; λ r 12.5%; λ P2G is 33.3%; λ h 50%; 50%; C om is 2536 yuan / day; γ j,c 2.34%; 5.48%; j,h 1.15%; j,sh 8.49%; the rated power of a fan is ...

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Abstract

The invention discloses a method for improving the energy utilization rate of a multi-energy system containing a hydrogen storage device, which belongs to the field of electric power system and multi-energy technology. The energy storage and heat source are modeled; then the energy power balance model of the multi-energy system is established through the energy coupling relationship between the multi-energy sources, and the energy utilization power optimization model of the multi-energy system is established according to the stable operation constraints of the hydrogen storage equipment; finally, the The multi-objective differential evolution algorithm solves the energy utilization power optimization model of the multi-energy system, obtains the energy utilization of the multi-energy system in a year according to the typical daily multi-energy utilization, and obtains the energy utilization ratio of the hydrogen storage device in the multi-energy system. The present invention uses the hydrogen storage device to judge the efficiency of energy utilization improvement in the operation of the multi-energy system, and highlights the criticality of the hydrogen storage device for improving the energy utilization rate of the multi-energy system.

Description

technical field [0001] The invention relates to the technical field of power systems and multi-energy sources, in particular to a method for improving energy utilization in a multi-energy system containing a hydrogen storage device. Background technique [0002] Hydrogen storage is an important part and key supporting technology of the renewable energy development and utilization system and the improvement of energy utilization in the operation of multi-energy systems. Among the current energy storage technologies, hydrogen energy is the most suitable for green development, more suitable for utilization and popularization, and breakthroughs in the technical field. The existing main hydrogen production technologies mainly include hydrogen production from natural hydrogen, hydrogen production from biomass and hydrogen production from water, etc. In the operation of traditional multi-energy systems, most of the energy storage systems are mostly electricity storage. The disadva...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H02J3/28H02J3/38G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06H02J3/00H02J3/28Y02E10/56Y02E10/76Y02E40/70Y02E60/36Y02E70/30Y04S10/50
Inventor 滕云张俊久孙鹏左浩刘硕郑晨田龙飚袁元缘孙月莹
Owner SHENYANG POLYTECHNIC UNIV
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