“双碳”背景下区域电力-氢能系统协同优化规划

Collaborative Optimal Planning of Regional Power-hydrogen System Towards Carbon Peak and Neutrality

电力系统脱碳是中国实现“双碳”目标的关键,而氢能可与电力高效互补协同,共同支撑“双碳”目标,这两个复杂系统的协同规划有重要意义。研究建立了一种以h为时间颗粒度的区域电力-氢能系统协同优化规划模型,并应用模型对浙江省电力-氢能系统迈向零碳的协同发展路径进行了优化规划,得到了电力-氢能系统的协同方式,对浙江省及其他区域的“双碳”路径规划有参考意义。优化结果表明,从系统减碳成本优化的角度建议浙江省2040年之前重点进行电力系统脱碳,2040年后进行电力-氢能系统的协同脱碳,且氢能系统主要通过制氢-储氢-应用于非电力行业为电力系统提供灵活性,主要发挥长周期调节作用。

The decarbonization of the power system is the key to achieve China’s carbon peak and neutrality goals,and the hydrogen system can be highly complementary and synergistic with the power system to jointly support these goals.Therefore,the coordinated planning of these two complex systems is of great significance.In this paper,a regional power-hydrogen energy system collaborative optimization planning model with time step in hours was established,and the model was used to optimize the coordinated development path of Zhejiang Province’s power-hydrogen energy system towards zero carbon.The synergistic approach of the power-hydrogen energy system is obtained,which has reference significance for the planning of carbon peak and neutrality paths in Zhejiang Province as well as other regions.The optimization results suggest that Zhejiang Province should focus on the decarbonization of the power system before 2040.After 2040,the power-hydrogen energy system will be decarbonized collaboratively,and the hydrogen energy system will mainly provide flexibility,especially long-term regulatory functions,for the power system through hydrogen production-hydrogen storage-application in nonpower industries.