摘要
“双碳”目标背景下,为提高清洁能源的利用,减少系统的碳排放,建立一种计及阶梯式碳交易机制、电转气两阶段运行、CHP热电比可调及负荷需求响应协调运行的综合能源系统模型。首先,建立阶梯式碳交易机制函数;其次,构建电解槽、甲烷反应器、氢燃料电池等组件的模型及约束条件;最后,对用户负荷需求响应进行分析,进一步提高系统的经济效益。在此基础上,建立以购能成本、碳排放成本、弃风/弃光成本最低作为综合能源系统的目标函数,并设置多个情景,运用CPLEX求解器求解混合整数线性问题,验证所构建模型的有效性。研究表明:阶梯式碳交易模型可以更好地限制系统的碳排放;通过细化电转气的两阶段运行,可增加氢能的使用场景,有效提高能源利用率,减少能源传递过程损耗。
Under the background of"double carbon target",in order to improve the use of clean energy and reduce the carbon emissions of the system,in this paper,an integrated energy system model is developed that takes into account the stepped carbon trading mechanism,two-stage electricity-to-gas operation,adjustable CHP ratio and coordinated load demand response.Firstly,the function of stepped carbon trading mechanism is established;secondly,the models and constraints for components such as electrolyze,methane reactor and hydrogen fuel cell are constructed;finally,the user load demand response is analyzed to further improve the economic efficiency of the system.On this basis,this paper establishes the lowest cost of energy purchase,carbon emission cost,and wind/light abandonment cost as the objective function of the integrated energy system,and sets up several scenarios to solve mixed-integer linear problems by using the CPLEX solver to verify the effectiveness of the constructed model.It is shown that the stepped carbon trading model can better limit the carbon emissions of the system;while the refinement of the two-stage operation of the electricity-to-gas conversion can increase the use scenarios of hydrogen energy,effectively improve the energy utilization rate,and then reduce the loss of the energy transfer process.
作者
唐晓
袁飞
代勇
刘文明
张寒
TANG Xiao;YUAN Fei;DAI Yong;LIU Wenming;ZHANG Han(State Grid Tai’an Power Supply Company,Tai’an 271000,China)
出处
《山东电力技术》
2024年第11期74-84,共11页
Shandong Electric Power
基金
国网山东省电力公司科技项目(520609220002)。
关键词
“双碳”目标
综合能源系统
阶梯式碳交易机制
负荷响应
优化调度
“dual carbon”goals
integrated energy system
stepwise carbon trading mechanism
load response
optimized scheduling
