提出等电量置换概念,即在稳定制氢的基础上,光伏出力较高时将富余电力上网,光伏出力不足时,将上网的富余电力用于制氢,从而降低水电解制氢设备装机量,并提高水电解制氢设备的有效利用时间和光伏发电制氢的有效比例,降低水电解制氢设备的固定投资。最后,给出光伏实际出力曲线,阐述等电量置换在光伏制氢一体化工程项目设计中的重要意义。
Abstract
This paper proposes a concept of equivalent electric exchange. That is, the surplus power will be output to the grid as a type of hypothetical energy storage when the photovoltaic power is sufficient over the basic demand, otherwise, the surplus power of hypothetical energy storage will be input from the grid for hydrogen production when the photovoltaic power is insufficient over the basic demand for the stable hydrogen production. So that, the installed capacity of water electrolysis equipment will be reduced, and the effective utilization time of water electrolysis equipment as well as the proportion of photovoltaic power for hydrogen production will be increased, resulting in the investment of water electrolysis equipment reduced. Furthermore, the actual output curve of photovoltaics is given to expound the significance of equivalent electric exchange in the design of photovoltaic hydrogen production project.
关键词
光伏 /
制氢 /
电量 /
置换 /
一体化
Key words
photovoltaic /
hydrogen production /
electrical energy storage /
equivalent electric exchange /
integrated
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基金
中国长江三峡集团有限公司科技研发项目（202003026）
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