聚合的分布式能源可作为虚拟电厂(virtual power plant,VPP)在电力市场中提供辅助调频服务,来应对低碳经济下大规模可再生能源并网给电力系统稳定性带来的挑战。为了引导VPP参与调频辅助服务市场,对VPP所有者的经济激励尤为重要。研究...聚合的分布式能源可作为虚拟电厂(virtual power plant,VPP)在电力市场中提供辅助调频服务,来应对低碳经济下大规模可再生能源并网给电力系统稳定性带来的挑战。为了引导VPP参与调频辅助服务市场,对VPP所有者的经济激励尤为重要。研究了澳大利亚国家电力市场中调频辅助服务市场机制,针对配网侧聚合的住宅屋顶光伏和电池储能系统的VPP,以利润最大化为目标,提出了嵌入电池循环寿命模型的调频市场优化竞标策略和与风电合作的联合优化竞标策略。同时,根据讨价还价博弈理论,基于Nash–Harsanyi 讨价还价解提出了一种反映VPP真实价值的合作剩余分配策略。算例结果验证了所提模型和方法的有效性,研究成果为激发VPP潜在价值提供了一条途径。展开更多
虚拟电厂(virtual power plant,VPP)可聚合多利益主体的分布式资源(distributed energy resources,DER)参与电力市场,以深入挖掘分布式能源的调度潜力,如何考虑各运行主体的协同调度,提高整体收益成为当前亟需解决的重要问题。基于此,...虚拟电厂(virtual power plant,VPP)可聚合多利益主体的分布式资源(distributed energy resources,DER)参与电力市场,以深入挖掘分布式能源的调度潜力,如何考虑各运行主体的协同调度,提高整体收益成为当前亟需解决的重要问题。基于此,提出了计及风光及市场电价不确定风险和多主体协同的虚拟电厂参与主辅市场联合优化策略。首先,建立电动汽车群体(electric vehicle duster,EVC)的可调度域评估模型,在此基础上考虑VPP与EVC两主体的利益均衡,提出VPP与EVC主从博弈的主能量市场日前竞标模型;其次,考虑电池储能系统(battery energy storage system,BESS)快速充放电的特性,进一步提出VPP参与主能量市场和辅助调频市场的日前联合投标模型和VPP实时调整及调频响应模型;最后,在日前联合投标模型中引入条件风险价值(condition value at risk,CVaR),衡量日前投标收益与不确定风险的关系。基于某省电力市场规则进行算例仿真表明,所提VPP优化策略能通过提供调频服务和鼓励EV响应调度提高VPP的综合收益。展开更多
With certain controllability of various distribution energy resources (DERs) such as battery energy storage system (BESS), demand response (DR) and distributed generations (DGs), virtual power plant (VPP) can suitably...With certain controllability of various distribution energy resources (DERs) such as battery energy storage system (BESS), demand response (DR) and distributed generations (DGs), virtual power plant (VPP) can suitably regulate the powers access to the distribution network. In this paper, an optimal VPP operating problem is used to optimize the charging/discharging schedule of each BESS and the DR scheme with the objective to maximize the benefit by regulating the supplied powers over daily 24 hours. The proposed solution method is composed of an iterative dynamic programming optimal BESS schedule approach and a particle swarm optimization based (PSO-based) DR scheme approach. The two approaches are executed alternatively until the minimum elec-tricity cost of the whole day is obtained. The validity of the proposed method was confirmed with the obviously decreased supplied powers in the peak-load hours and the largely reduced electricity cost.展开更多
文摘聚合的分布式能源可作为虚拟电厂(virtual power plant,VPP)在电力市场中提供辅助调频服务,来应对低碳经济下大规模可再生能源并网给电力系统稳定性带来的挑战。为了引导VPP参与调频辅助服务市场,对VPP所有者的经济激励尤为重要。研究了澳大利亚国家电力市场中调频辅助服务市场机制,针对配网侧聚合的住宅屋顶光伏和电池储能系统的VPP,以利润最大化为目标,提出了嵌入电池循环寿命模型的调频市场优化竞标策略和与风电合作的联合优化竞标策略。同时,根据讨价还价博弈理论,基于Nash–Harsanyi 讨价还价解提出了一种反映VPP真实价值的合作剩余分配策略。算例结果验证了所提模型和方法的有效性,研究成果为激发VPP潜在价值提供了一条途径。
文摘虚拟电厂(virtual power plant,VPP)可聚合多利益主体的分布式资源(distributed energy resources,DER)参与电力市场,以深入挖掘分布式能源的调度潜力,如何考虑各运行主体的协同调度,提高整体收益成为当前亟需解决的重要问题。基于此,提出了计及风光及市场电价不确定风险和多主体协同的虚拟电厂参与主辅市场联合优化策略。首先,建立电动汽车群体(electric vehicle duster,EVC)的可调度域评估模型,在此基础上考虑VPP与EVC两主体的利益均衡,提出VPP与EVC主从博弈的主能量市场日前竞标模型;其次,考虑电池储能系统(battery energy storage system,BESS)快速充放电的特性,进一步提出VPP参与主能量市场和辅助调频市场的日前联合投标模型和VPP实时调整及调频响应模型;最后,在日前联合投标模型中引入条件风险价值(condition value at risk,CVaR),衡量日前投标收益与不确定风险的关系。基于某省电力市场规则进行算例仿真表明,所提VPP优化策略能通过提供调频服务和鼓励EV响应调度提高VPP的综合收益。
文摘With certain controllability of various distribution energy resources (DERs) such as battery energy storage system (BESS), demand response (DR) and distributed generations (DGs), virtual power plant (VPP) can suitably regulate the powers access to the distribution network. In this paper, an optimal VPP operating problem is used to optimize the charging/discharging schedule of each BESS and the DR scheme with the objective to maximize the benefit by regulating the supplied powers over daily 24 hours. The proposed solution method is composed of an iterative dynamic programming optimal BESS schedule approach and a particle swarm optimization based (PSO-based) DR scheme approach. The two approaches are executed alternatively until the minimum elec-tricity cost of the whole day is obtained. The validity of the proposed method was confirmed with the obviously decreased supplied powers in the peak-load hours and the largely reduced electricity cost.
