针对电网中不同类型储能电站调频成本、剩余调频能力存在差异、储能电站内部储能单元荷电状态(state of charge,SOC)过高或过低的问题,提出计及调频成本和SOC恢复的多储能系统调频功率双层优化策略,该策略包含调频功率优化层和SOC优化层...针对电网中不同类型储能电站调频成本、剩余调频能力存在差异、储能电站内部储能单元荷电状态(state of charge,SOC)过高或过低的问题,提出计及调频成本和SOC恢复的多储能系统调频功率双层优化策略,该策略包含调频功率优化层和SOC优化层:在调频功率优化层引入与储能电站剩余调频能力相关的抗拒系数,与调频成本共同构成目标函数,根据不同类型储能电站的调频成本和剩余调频能力实现调频功率优化分配;在SOC优化层引入SOC权重,以恢复储能单元SOC为目标对调频功率优化结果进行再分配。采用包含3种不同电池类型的区域电网验证所提分配策略的有效性,结果表明:与3种对比策略相比,所提策略不仅具有较好的经济性,还能恢复各储能单元的SOC,显著提高了调频效果。展开更多
The development of sustainable electrode materials for energy storage systems has become very important and porous carbons derived from biomass have become an important candidate because of their tunable pore structur...The development of sustainable electrode materials for energy storage systems has become very important and porous carbons derived from biomass have become an important candidate because of their tunable pore structure,environmental friendliness,and cost-effectiveness.Recent advances in controlling the pore structure of these carbons and its relationship between to is energy storage performance are discussed,emphasizing the critical role of a balanced distribution of micropores,mesopores and macropores in determining electrochemical behavior.Particular attention is given to how the intrinsic components of biomass precursors(lignin,cellulose,and hemicellulose)influence pore formation during carbonization.Carbonization and activation strategies to precisely control the pore structure are introduced.Finally,key challenges in the industrial production of these carbons are outlined,and future research directions are proposed.These include the establishment of a database of biomass intrinsic structures and machine learning-assisted pore structure engineering,aimed at providing guidance for the design of high-performance carbon materials for next-generation energy storage devices.展开更多
文摘针对电网中不同类型储能电站调频成本、剩余调频能力存在差异、储能电站内部储能单元荷电状态(state of charge,SOC)过高或过低的问题,提出计及调频成本和SOC恢复的多储能系统调频功率双层优化策略,该策略包含调频功率优化层和SOC优化层:在调频功率优化层引入与储能电站剩余调频能力相关的抗拒系数,与调频成本共同构成目标函数,根据不同类型储能电站的调频成本和剩余调频能力实现调频功率优化分配;在SOC优化层引入SOC权重,以恢复储能单元SOC为目标对调频功率优化结果进行再分配。采用包含3种不同电池类型的区域电网验证所提分配策略的有效性,结果表明:与3种对比策略相比,所提策略不仅具有较好的经济性,还能恢复各储能单元的SOC,显著提高了调频效果。
文摘The development of sustainable electrode materials for energy storage systems has become very important and porous carbons derived from biomass have become an important candidate because of their tunable pore structure,environmental friendliness,and cost-effectiveness.Recent advances in controlling the pore structure of these carbons and its relationship between to is energy storage performance are discussed,emphasizing the critical role of a balanced distribution of micropores,mesopores and macropores in determining electrochemical behavior.Particular attention is given to how the intrinsic components of biomass precursors(lignin,cellulose,and hemicellulose)influence pore formation during carbonization.Carbonization and activation strategies to precisely control the pore structure are introduced.Finally,key challenges in the industrial production of these carbons are outlined,and future research directions are proposed.These include the establishment of a database of biomass intrinsic structures and machine learning-assisted pore structure engineering,aimed at providing guidance for the design of high-performance carbon materials for next-generation energy storage devices.
