面向碳中和电力系统转型的电氢枢纽灵活性应用

我国“碳达峰”、“碳中和”目标将加速电力系统向以风、光发电为主的高比例新能源电力系统的演变进程,保障电力系统灵活运行是高比例新能源电力系统转型的核心。氢作为一种清洁、零碳、多功能的二次能源载体,可与电能相互转换,并长期高效储存,在高比例新能源电力系统灵活性调节方面将扮演不容忽视的角色。系统分析了未来各阶段电力系统特征演变及灵活性资源需求,电-氢相互转换及氢储存技术,研究和展望了电-氢枢纽在大规模可再生能源电力系统中参与灵活性调节的应用场景。

Flexibility of Electro-Hydrogen Hub for Power System Transformation under the Goal of Carbon Neutrality

With China already committing to peak carbon dioxide emissions before 2030 and achieving carbon neutrality before 2060, the evolution to a high-proportion new energy power system will be accelerated. Ensuring the flexible operation of is the core of the power system transformation towards a high proportion of renewable energy. As a clean, carbon-neutral, and multi-functional secondary energy carrier, hydrogen will play an important role on the flexibility adjustment of a high-proportion renewable energy power system due to its ability to inter-convert with electrical energy and achieve long-term storage. This paper systematically analyzes the evolution of power system characteristics and flexible resource requirements at various stages in the future, analyzes electricity-hydrogen conversion and hydrogen storage technology, and studies and prospects the application scenarios of hydrogen participating in the flexible regulation of renewable energy power systems.