摘要
随着可再生能源的大规模开发、高比例并网,虚拟电厂逐渐成为充分发挥新型电力系统经济-环境效益的关键技术之一,文章重点研究了电氢耦合虚拟电厂多目标优化问题。首先,构建了含分布式风光机组、微型燃气轮机、分布式储能、柔性负荷的电氢耦合虚拟电厂。其次,运用多主体全生命周期法计算得到虚拟电厂构成组件的碳排放系数,并将其与阶梯式碳交易机制联合引入优化模型中。然后,以系统内运行成本最小和二氧化碳排放量最低为目标函数,通过赋权法将多目标优化转为单目标优化。最后选取华北某园区夏季、过渡季、冬季3个典型场景为算例分析验证所构建模型的有效性,算例结果表明该模型能兼顾虚拟电厂内部各设备主体运行的经济利益和环境效益。
Owing to the large-scale development of renewable energy and the high proportion of grid connections,hybrid virtual power plants have gradually become one of the key technologies for fully exploiting the economic and environmental benefits of new power systems.This study focuses on the multi-objective optimization of an electric-hydrogen coupling virtual power plant.First,a virtual power plant with electric-hydrogen coupling,which comprises a distributed wind turbine,micro gas turbine,distributed energy storage,and flexible load,is constructed.Second,the carbon-emission coefficient of the components of the virtual power plant is measured using the multi-agent full life-cycle method,which is combined with the stepped carbon-trading mechanism in the optimization model.Third,considering the minimum operating cost and lowest carbon-dioxide emission in the system as the objective function,the multi-objective optimization is transformed into a single-objective optimization using the weighting method.Finally,three typical scenarios in a park in North China during summer,a transition season,and winter are selected for analysis to verify the effectiveness and feasibility of the model.The simulation results show that the model considers the economic and environmental benefits of operating the main equipment in the virtual power plant.This work is supported by National Key R&D Program of China(No.2020YFB1707801).
作者
闫庆友
党嘉璐
林宏宇
郑浩伟
YAN Qingyou;DANG Jialu;LIN Hongyu;ZHENG Haowei(School of Economics and Management,North China Electric Power University,Beijing 102206,China;State Grid Economic and Technological Research Institute Co.,Ltd.,Beijing 102209,China)
出处
《电力建设》
CSCD
北大核心
2024年第4期13-25,共13页
Electric Power Construction
基金
国家重点研发计划项目(2020YFB1707801)。
关键词
虚拟电厂
多目标优化
全生命周期
碳交易
电转氢
virtual power plant
multi-objective optimization
entire life cycle
carbon trading
power to hydrogen
