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氢储能:解决“弃风弃光”问题的新途径!
2020-10-20

 

氢能储能是近两年德国等欧洲国家对氢能进行综合利用后提出的新概念. “12th Five-Year Plan” has not been established before, support projects are also hydrogen generation, power generation, hydrogen storage and other processes separately funded, 但“十三五”期间的概念已被纳入国家电网公司规划. 氢储能技术被认为是智能电网大规模发展和可再生能源发电的重要支撑, 并日益成为许多国家能源技术创新和产业扶持的重点.

 

We will vigorously develop hydrogen energy storage technology, 重点突破高效转换等关键技术, 低成本大规模存储和综合高效利用两种能源载体, 解决新能源产氢波动性等关键技术, 电网与管网的互联互通与协调控制, realize large-scale storage of energy network, 实现高效低成本储能技术的大规模应用. 为构建具有强大配置能力的全球能源互联网提供技术支持, high safety and reliability, and green and low carbon.

 

解决“弃风”“弃光”问题的新思路

 

随着中国可再生能源发电比重的快速提升(根据国家发改委能源研究所最新预测:到2030年,可再生能源发电在中国电力结构中的比重将从2015年的24%提高到53%), 发电和负荷中心也有一定的地理分布(80%-90%的陆上风电资源在“三北”地区), solar energy resources are also in the west and north, and energy centers are located in the middle and east), 鉴于日益紧迫的环境压力和化石能源的制约, which have forced China to focus on the generation, storage and consumption of renewable energy, in early 2014, 李克强总理参观德国氢能混合发电项目, 特别是指示国内有关部门组织实施氢能利用示范项目. 国家能源局已指示河北和吉林两省加快可再生能源制氢示范, 并将储氢列为解决“弃风”“弃光”问题的新思路. In the two months of early 2015, 国家能源局再次发布了一系列与风电消纳相关的通知(《澳门赌博平台》), 《澳门皇冠线上》, 《澳门赌博平台》), renewable energy consumption work is imminent.

 

To this end, 国家电网公司还开展了氢储能关键技术及其在新能源接入中的预应用研究, 积极搭建氢储能系统实验研究平台, 突破了挥发性新能源电解液氢技术的适应性, has the efficiency testing capability of hydrogen storage system, 为今后大规模可再生能源制氢关键技术的研究和应用提供理论依据.

 

氢储能可以看作是化学储能的延伸, the basic principle is to hydrolysect hydrogen and oxygen. In the case of wind power hydrogen storage technology, 其核心思想是,当有足够的电力但无法上网时,以及需要风能来储存氢气时,利用风能将水力发电转化为氢气(和氧气), and when electricity is needed, 将储存的氢以不同的方式转化为电力传输网络(内燃机), fuel cells, or other means).

通常所说的储氢系统是电-氢-电循环,不同于传统的锂电池和铅酸电池. The electrolyzed water link at the front end, which is calculated by power (kW), represents the “charge” power of the hydrogen energy storage system, 后端的燃料电池链路也会按功率(kW)计算容量。, represents the “discharge” power of the hydrogen storage system, and the hydrogen storage link in the middle, 氢的体积(标准立方米Nm3)的计算能力, if converted into electrical capacity, 1Nm3 hydrogen can produce about 1.25 kWh of electricity, 储氢环节的容量决定了储氢系统的可持续性“充电”或“放电”.” “The length of time, so if you want to increase the storage capacity of electrical energy, increase the volume or pressure of the hydrogen tank.“如果氢储能技术应用于储能领域