新能源制氢电力电子变换器综述

新能源发电与氢能相结合是实现"碳达峰"与"碳中和"目标的重要途径之一,其中,电力电子变换器被广泛应用.为了实现电解制氢系统高效运行,要求电力电子变换器具有低压大电流能力、低输出电流纹波、高降压比及高可靠性等特点.文中首先分析了电解器模型,并对目前商业化电解器的特点及技术指标进行研究.然后,对新能源电解制氢系统,包括碱性电解器、质子交换膜电解器和固体氧化物电解器中的电力电子变换器进行了整理和分类,并对各类拓扑进行了分析和对比.同时,对电力电子变换器在新能源制氢中潜在的应用、存在的问题以及发展的方向进行了讨论和总结.

Review on Power Electronic Converters for Producing Hydrogen from Renewable Energy Sources

The combination of hydrogen energy and renewable energy generation is one of the important ways to achieve the goals of carbon neutrality and the peak of carbon dioxide emissions, where power electronic converters are widely used. In order to realize the efficient operation of the electrolysis hydrogen production system, the power electronic converter is required to have the characteristics of low voltage and high current capability, low output current ripple, high step-down ratio, and high reliability. Firstly, this paper analyzes the electrolyzer model, and studies the characteristics and technical indicators of the existing commercial electrolyzer. Secondly, this paper sorts and classifies the power electronic converters applied in various electrolysis hydrogen production systems including the alkaline electrolyzer, the polymer exchange membrane electrolyzer and the solid oxide electrolyzer, and various topologies are analyzed and compared. Meanwhile, the potential applications, existing problems and development trends of power electronic converters for producing hydrogen from renewable energy sources are discussed and summarized.TFoundation:his work is supported by Science and Technology Innovation Project of CHN Energy (No. GJNY-19-136), National Key R&D Program of China (No. 2018YFB1503100), and Science Fund for Creative Research Groups of Hebei Provincial Natural Science Foundation of China (No. F2020203013).