摘要
在“双碳”目标下,虚拟电厂是优化多区域资源配置、提高可再生能源渗透率的有效载体。文中提出一种在阶梯式碳交易机制下考虑垃圾焚烧参与的虚拟电厂协调优化调度策略。首先,从系统结构出发,构建包含多电厂、多储能在内的新型电力系统结构。为充分挖掘垃圾焚烧电厂发电产气潜力,针对干湿垃圾电气联产进行分析研究,建立垃圾焚烧电厂数学模型;其次,采用电转气-碳捕集联合运行模式,构建碳捕集-电转气-氢燃料电池子系统,制定多电厂、多储能联合运行策略;再次,引入碳交易机制,构建阶梯型碳交易计算模型,并针对模型中价格基价、区间长度及价格增长率进行分析;最后,以火电成本、购能成本、碳排放成本、垃圾焚烧成本及风光成本之和最小为目标函数,建立虚拟电厂协调优化调度模型,在多场景下,运用Matlab软件中CPLEX求解器对模型进行优化求解。
Under the goal of“dual carbon”,virtual power plant is an effective vehicle for optimizing multi-regional resource allocation and increasing renewable energy penetration.Against this background,the paper proposes a coordinated and optimal scheduling strategy for virtual power plants that considers the participation of waste incineration under the stepped carbon trading mechanism.First,a new power system structure including multiple power plants and multiple energy storage is constructed from the system structure.In order to fully explore the potential of power generation and gas production in waste incineration power plants,an analytical study is carried out for dry and wet waste electrical cogeneration,and a mathematical model of waste incineration power plants is established.Secondly,the joint operation mode of power-to-gas and carbon capture is adopted,and a carbon capture-power-to-gas-hydrogen fuel cell subsystem model is constructed to formulate the joint operation strategy of multiple power plants and multiple energy storage.Again,the carbon trading mechanism is introduced,and a laddered carbon trading calculation model is constructed and analyzed for the price base price,interval length and price growth rate in the model.Finally,with the objective function of minimizing the sum of thermal power cost,purchased energy cost,carbon emission cost,equipment maintenance cost and scenery cost,the coordinated optimal scheduling model of virtual power plant is established,and the model is optimally solved by using the CPLEX solver of Matlab software in multiple scenarios.
作者
王秀云
崔本旺
WANG Xiuyun;CUI Benwang(School of Electrical Engineering,Northeast Electric Power University,Jilin Jilin 132012)
出处
《东北电力大学学报》
2024年第6期101-111,共11页
Journal of Northeast Electric Power University
基金
吉林省教育厅科研项目(JJKH20230118KJ)。
关键词
虚拟电厂
垃圾焚烧
联合运行策略
阶梯型碳交易
virtual power plant
waste incineration
joint operational strategy
laddered carbon trading
