As an energy storage medium,hydrogen has drawn the attention of research institutions and industry over the past decade,motivated in part by developments in renewable energy,which have led to unused surplus wind and p...As an energy storage medium,hydrogen has drawn the attention of research institutions and industry over the past decade,motivated in part by developments in renewable energy,which have led to unused surplus wind and photovoltaic power.Hydrogen production from water electrolysis is a good option to make full use of the surplus renewable energy.Among various technologies for producing hydrogen,water electrolysis using electricity from renewable power sources shows greatpromise.To investigate the prospects of water electrolysis for hydrogen production,this review compares different water electrolysis processes,i.e.,alkaline water electrolysis,proton exchange membrane water electrolysis,solid oxide water electrolysis,and alkaline anion exchange membrane water electrolysis.The ion transfer mechanisms,operating characteristics,energy consumption,and industrial products of different water electrolysis apparatus are introduced in this review.Prospects for new water electrolysis technologies are discussed.展开更多
Based on decreasing the flexibility of the power grid through the integration of large-scale renewable energy,a multi-energy storage system architectural model and its coor-dination operational strategy with the same ...Based on decreasing the flexibility of the power grid through the integration of large-scale renewable energy,a multi-energy storage system architectural model and its coor-dination operational strategy with the same flexibility as in the pumped storage power station and battery energy storage system(BESS)are studied.According to the new energy fluctuation characteristics and the different peak valley parameters in the power grid,this paper proposes a electricity heat hydrogen multi-energy storage system(EHH-MESS)and its coordination and optimization operational model to reduce the curtailment of wind power and photovoltaic(PV)to the power grid and improve the flexibility of the power grid.Finally,this paper studied the simulation model of an energy storage optimization control strategy after the multi-energy storage system is connected to the distribution networks,and analyzed three operational modes of the multi-energy storage system.The simulation results show that the EHH-MESS proposed in this paper has a better power grid regulation flexibility and economy,and can be used to replace the battery energy storage system based on MATLAB.展开更多
为提高能源利用效率,降低碳排放水平,改善虚拟电厂运行效益,构建了基于碱性电解槽宽功率适应模型的风光氢热虚拟电厂(Virtual Power Plant,VPP)模型。将制氢电解槽、氢燃料电池、储氢罐构成氢能系统,代替传统虚拟电厂中的蓄电池,并提出...为提高能源利用效率,降低碳排放水平,改善虚拟电厂运行效益,构建了基于碱性电解槽宽功率适应模型的风光氢热虚拟电厂(Virtual Power Plant,VPP)模型。将制氢电解槽、氢燃料电池、储氢罐构成氢能系统,代替传统虚拟电厂中的蓄电池,并提出碱性电解槽宽功率适应模型,提高电解槽在不同输入功率条件下的适应性。利用氢能系统运行时产生热量对系统负荷实行热电联供,并将电解槽产生氧气出售。在此基础上,使用改进多路无网格光线寻优算法对各设备出力调度与设备容量配置进行优化。仿真结果表明,该算法在计算精度和速度上有一定提高。基于碱性电解槽宽功率适应模型的风光氢热VPP,在降低系统运行成本的同时可以有效应对风、光出力波动,提高风、光消纳水平,减少碳排放。展开更多
Fossil fuels are major cause of environmental destruction in pollutions. It has created much needed momentum for renewable energies, which are environmentally benign, generated locally, and can play a significant role...Fossil fuels are major cause of environmental destruction in pollutions. It has created much needed momentum for renewable energies, which are environmentally benign, generated locally, and can play a significant role in developing economy. As a sustainable energy sources, it can grow at a rapid pace to meet increasing demands for electricity in a cost-effective way.展开更多
基金supported by the Joint Fund of National Natural Science Foundation of China (U1664259)the National Natural Science Foundation of China (91434106)+1 种基金 the State Grid Fund (SGTYHT/15-JS-193)the Beijing municipal science and technology commission project (Z171100002017024)~~
文摘As an energy storage medium,hydrogen has drawn the attention of research institutions and industry over the past decade,motivated in part by developments in renewable energy,which have led to unused surplus wind and photovoltaic power.Hydrogen production from water electrolysis is a good option to make full use of the surplus renewable energy.Among various technologies for producing hydrogen,water electrolysis using electricity from renewable power sources shows greatpromise.To investigate the prospects of water electrolysis for hydrogen production,this review compares different water electrolysis processes,i.e.,alkaline water electrolysis,proton exchange membrane water electrolysis,solid oxide water electrolysis,and alkaline anion exchange membrane water electrolysis.The ion transfer mechanisms,operating characteristics,energy consumption,and industrial products of different water electrolysis apparatus are introduced in this review.Prospects for new water electrolysis technologies are discussed.
基金This project was supported by National Key Research and Development Plan(2017YFB0902100).
文摘Based on decreasing the flexibility of the power grid through the integration of large-scale renewable energy,a multi-energy storage system architectural model and its coor-dination operational strategy with the same flexibility as in the pumped storage power station and battery energy storage system(BESS)are studied.According to the new energy fluctuation characteristics and the different peak valley parameters in the power grid,this paper proposes a electricity heat hydrogen multi-energy storage system(EHH-MESS)and its coordination and optimization operational model to reduce the curtailment of wind power and photovoltaic(PV)to the power grid and improve the flexibility of the power grid.Finally,this paper studied the simulation model of an energy storage optimization control strategy after the multi-energy storage system is connected to the distribution networks,and analyzed three operational modes of the multi-energy storage system.The simulation results show that the EHH-MESS proposed in this paper has a better power grid regulation flexibility and economy,and can be used to replace the battery energy storage system based on MATLAB.
文摘为提高能源利用效率,降低碳排放水平,改善虚拟电厂运行效益,构建了基于碱性电解槽宽功率适应模型的风光氢热虚拟电厂(Virtual Power Plant,VPP)模型。将制氢电解槽、氢燃料电池、储氢罐构成氢能系统,代替传统虚拟电厂中的蓄电池,并提出碱性电解槽宽功率适应模型,提高电解槽在不同输入功率条件下的适应性。利用氢能系统运行时产生热量对系统负荷实行热电联供,并将电解槽产生氧气出售。在此基础上,使用改进多路无网格光线寻优算法对各设备出力调度与设备容量配置进行优化。仿真结果表明,该算法在计算精度和速度上有一定提高。基于碱性电解槽宽功率适应模型的风光氢热VPP,在降低系统运行成本的同时可以有效应对风、光出力波动,提高风、光消纳水平,减少碳排放。
文摘Fossil fuels are major cause of environmental destruction in pollutions. It has created much needed momentum for renewable energies, which are environmentally benign, generated locally, and can play a significant role in developing economy. As a sustainable energy sources, it can grow at a rapid pace to meet increasing demands for electricity in a cost-effective way.
