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Hydrogen energy system power capacity calculation method based on double-step function

A technology of power capacity and calculation method, applied in complex mathematical operations and other directions, can solve problems such as high cost, inability to meet the needs of large-scale energy storage and future green energy development, and achieve the effect of improving adaptability and reducing computational complexity

Active Publication Date: 2021-01-26
STATE GRID GASU ELECTRIC POWER RES INST +2
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Problems solved by technology

However, traditional energy storage technology is not only unable to meet the needs of massive energy storage and future green energy development, but also has high cost

Method used

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  • Hydrogen energy system power capacity calculation method based on double-step function
  • Hydrogen energy system power capacity calculation method based on double-step function
  • Hydrogen energy system power capacity calculation method based on double-step function

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Embodiment Construction

[0040] This implementation case provides a method for calculating the power capacity of a hydrogen energy system based on a double-step function, which specifically includes the following steps:

[0041] Given the annual wind power output in a certain place as figure 2 shown. according to figure 2 Given the annual wind power output in a certain place as shown, the method for calculating the power capacity of the hydrogen energy system based on the double-step function of the present invention is as follows:

[0042] 1) Establish a total wind power annual output model and a wind power annual average output model;

[0043] The total annual wind power output model is shown in formula (1):

[0044]

[0045] The wind power annual average output model is shown in formula (2):

[0046]

[0047] P W (t) is the output value of wind power at hour t within a year, such as figure 2 As shown, T is the annual number of hours 8760, Δt is the minimum unit time interval 1h.

[...

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Abstract

The invention discloses a hydrogen energy system power capacity calculation method based on a double-step function. The method comprises the steps of: firstly, establishing a wind power annual outputtotal quantity model and a wind power annual output mean value model, then establishing a wind power annual output total quantity equivalent model according to a double-cascade function theory, then calculating an annual minimum output duration factor, establishing a hydrogen energy system power capacity calculation model, solving the capacity calculation model in combination with wind power output data, and obtaining a hydrogen energy system power capacity calculation result. According to the method, the calculation complexity of the power capacity of the hydrogen energy system can be greatlyreduced, and the adaptability of the hydrogen energy system to wind power output fluctuation is improved.

Description

technical field [0001] The invention relates to a method for calculating the power capacity of a hydrogen energy system. Background technique [0002] With the widespread access of large-scale renewable energy to the power grid, the randomness, intermittency and volatility of its power generation will pose serious challenges to the safe operation of the power grid. Energy storage can play a role in stabilizing fluctuations, shaving peaks and filling valleys, and is conducive to solving a series of problems caused by the integration of renewable energy into the grid. However, traditional energy storage technology is not only unable to meet the needs of massive energy storage and future green energy development, but also has high cost. In recent years, due to the development of hydrogen production technology and the breakthrough of proton exchange membrane fuel cell technology (PEMFC), it has become possible to safely connect wind power to the grid on a large scale and change...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/10
CPCG06F17/10
Inventor 高鹏飞胡家华冉亮袁铁江吕清泉马明沈渭程赵龙周强张珍珍张健美张睿骁张彦琪朱宏毅
Owner STATE GRID GASU ELECTRIC POWER RES INST
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