A p2h optimal capacity determination method for smoothing wind power fluctuations
A determination method and an optimal technology, applied in the determination of the optimal capacity of P2H to stabilize wind power fluctuations, and in the field of determining the optimal capacity of the application of power-to-hydrogen devices to stabilize wind power fluctuations, which can solve the problem of not being able to store for a long time and in a large range, and achieve improved performance. The effect of wind energy utilization efficiency, reducing operating costs and maximizing economic benefits
Active Publication Date: 2020-11-06
SOUTHEAST UNIV
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However, existing energy storage devices cannot store
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[0043] Embodiments of the present invention will be described in detail below. The embodiments are exemplary and are only used to explain the present invention, but not to limit the present invention.
[0044] The P2H optimal capacity research method for smoothing wind power fluctuations, in accordance with the national grid wind farm access grid technical regulations, including the two time scale requirements of the maximum power change rate of wind power in 1 minute and the maximum power in 10 minutes, uses electrolyzed water devices to meet this The wind power output that needs to be reduced is required to electrolyze water, which specifically includes the following steps:
[0045] Step 1: Convert the national grid’s technical regulations on wind farm access to the power grid into a mathematical model, corresponding to the two time scales of the 1-minute smoothing regulation and the 10-minute smoothing regulation. Stabilization is required, this is the time sequence for win...
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The invention discloses a P2H optimal capacity determination method with a wind power fluctuation suppression effect. According to the method, based on the technical regulation of national power gridwind power plant access to power grid, requirements on the two time dimensional aspects of the maximum power change rate of wind power in 1min and the maximum power in 10min are included; electrolysisof water is performed by a water electrolysis apparatus on the wind power output which needs to be consumed for satisfying requirement; the wind power which is abandoned if not use is converted for industrial use or is injected into a natural gas pipeline; and the investment cost and operation cost of electrolysis of water, and the sales income of hydrogen and oxygen obtained after electrolysis water conversion are taken into comprehensive consideration, and the optimal capacity configuration of the water electrolysis apparatus is researched, so that the economic benefit of the water electrolysis apparatus can be in the maximum and wind power utilization rate is improved. By virtue of the method, influence to the power grid from wind power output intermittency and fluctuation can be lowered, the redundant wind power can be converted into hydrogen through the water electrolysis apparatus to the maximum, and energy utilization efficiency can be improved.
Description
technical field [0001] The invention relates to a method for determining the optimal capacity of P2H for smoothing wind power fluctuations, in particular to a method for determining the optimal capacity for smoothing wind power fluctuations using an electric-to-hydrogen device, and belongs to the technical field of wind power grid-connected operation. Background technique [0002] Due to issues such as the fossil energy crisis, climate change and severe environmental pollution, the energy system needs to shift to a more sustainable direction. Large-scale renewable energy can successfully achieve this goal, but an environmentally friendly energy system faces serious problems and challenges. Renewable energy is random and intermittent, threatening the security and stability of the energy system. Energy storage devices are crucial to improve the stability and safety of energy systems. However, existing energy storage devices are not capable of long-term and large-scale storag...
Claims
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IPC IPC(8): H02J3/38H02J3/46H02J3/00C25B1/04C25B15/02G06F30/20G06F111/04
CPCC25B1/04C25B15/02G06F30/20H02J3/008H02J3/386H02J3/46H02J2203/20Y02E10/76Y02E60/36Y02P20/133Y02P80/20
Inventor 杨自娟高赐威
Owner SOUTHEAST UNIV