Optimal sizing of the power-to-hydrogen system in distributed network with small hydropower
The limited capacity and voltage violation have become the main factors limiting the absorption rate of runoff SHP in enriched areas.This paper proposes an optimal sizing method for the hydrogen production system in the regional distribution network with small hydropower by utilizing energy storage to adjust the local consumption.First,the electricity-to-gas model of the hydrogen production system and the operation model considering the start-stop characteristics are established,and the characteristics of the two current mainstream electrolysis water hydrogen production technologies are compared.Secondly,the online revenue and hydrogen sales revenue of small hydropow-er operators are considered.As well as the security constraints of the distribution network,an optimal configuration model of the hydrogen production system is established based on mixed integer programming,in which the operating model fully reflects the difference in response time and ramp rate between the two hydrogen production technologies from the perspective of energy.An example of a distribution network in an enriched area in Zhejiang verifies that the proposed configuration scheme can fully alleviate the voltage problem during the rainy season,improve the re-gional small hydropower consumption rate,and has certain economic feasibility.
small hydropowerwater electrolysisoptimal sizingconsumption of renewable energy
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维普
