考虑污染物排放约束的传统电厂与虚拟电厂间环境经济调度模型

为有效实现分布式能源(distributed energy resource,DER)单元参与电力系统能源市场,深度挖掘负荷侧灵活供能潜力,首先建立虚拟电厂(virtual power plant,VPP)作为管理运行分布式能源的代理模型,并基于组件特性分析对虚拟电厂的外特性进行了量化;然后基于当前电力行业面临的经济环境热点问题,建立了考虑污染物排放约束的传统电厂(conventional power plant,CPP)和虚拟电厂间的环境经济调度(environmental economic dispatch,EED)二阶约束二阶规划(quadratically constraint quadratic programming,QCQP)模型;接着介绍了CPLEX优化引擎和YALMIP软件包的功能,并采用建模与求解解耦的方式来求解模型;最后对改进10机系统进行仿真计算,验证了所提模型的有效性和正确性。

An Environmental/Economic Dispatch Model for Conventional Power Plants and Virtual Power Plants Considering Pollutant Emission Constraint

To effectively achieve the goal of distributed energy resource (DER) units participating in the power system energy market, and strongly activate the flexible energy supply potential of load side, this paper firstly introduces virtual power plant (VPP) to manage the DER as an agent model, and establishes the external characteristics of the VPP based on the component characteristic analysis.Then, based on the hotspot of the economic/environmental issues faced by the current power industry, this paper establishes the environmental/economic dispatch (EED) quadratically constraint quadratic programming (QCQP) model between conventional power plants (CPPs) and VPPs, considering the pollutant emission constraint.Next, this paper introduces the functions of CPLEX optimization engine and YALMIP software package, and adopts the way of modeling and solving separately to solve the model.Finally, the simulation of the improved 10-unit system is carried out to verify the effectiveness and correctness of the proposed model.