虚拟电厂(virtual power plant,VPP)可以通过先进的控制技术对海量分散的分布式能源进行有效聚合,为实现低碳发展提供了有效途径。为促进VPP在碳减排方面的积极作用,提出了一种VPP联盟和配电网多主体协同优化框架。首先,基于碳排放流理...虚拟电厂(virtual power plant,VPP)可以通过先进的控制技术对海量分散的分布式能源进行有效聚合,为实现低碳发展提供了有效途径。为促进VPP在碳减排方面的积极作用,提出了一种VPP联盟和配电网多主体协同优化框架。首先,基于碳排放流理论制定了电-碳综合定价方法,激励VPP低碳运行。其次,考虑多个VPP之间采用合作联盟的形式进行共享交易,构建一种基于纳什议价理论的多VPP电碳点对点(peer-to-peer,P2P)交易机制模型,实现资源共享的同时兼顾个体利益和联盟效益。在此基础上,建立一种基于电-碳综合价格引导VPP间电碳P2P交易的VPP联盟-配电网协同优化双层模型。上层模型是多VPP之间电碳P2P最优交易问题,采用自适应步长交替方向乘子法实现多VPP间的分布式求解。下层模型则是配电网的最优经济调度问题。最后,通过算例验证了所提模型和方法的有效性。展开更多
The goal of delivering high-quality service has spurred research of 6G satellite communication networks.The limited resource-allocation problem has been addressed by next-generation satellite communication networks,es...The goal of delivering high-quality service has spurred research of 6G satellite communication networks.The limited resource-allocation problem has been addressed by next-generation satellite communication networks,especially multilayer networks with multiple low-Earth-orbit(LEO)and nonlow-Earth-orbit(NLEO)satellites.In this study,the resource-allocation problem of a multilayer satellite network consisting of one NLEO and multiple LEO satellites is solved.The NLEO satellite is the authorized user of spectrum resources and the LEO satellites are unauthorized users.The resource allocation and dynamic pricing problems are combined,and a dynamic gamebased resource pricing and allocation model is proposed to maximize the market advantage of LEO satellites and reduce interference between LEO and NLEO satellites.In the proposed model,the resource price is formulated as the dynamic state of the LEO satellites,using the resource allocation strategy as the control variable.Based on the proposed dynamic game model,an openloop Nash equilibrium is analyzed,and an algorithm is proposed for the resource pricing and allocation problem.Numerical simulations validate the model and algorithm.展开更多
Resource-constrainted and located closer to users,edge servers are more vulnerable to Distributed Denial of Service(DDoS)attacks.In order to mitigate the impact of DDoS attacks on benign users,this paper designed a Re...Resource-constrainted and located closer to users,edge servers are more vulnerable to Distributed Denial of Service(DDoS)attacks.In order to mitigate the impact of DDoS attacks on benign users,this paper designed a Resource-based Pricing Collaborative approach(RPC)in mobile edge computing.By introducing the influence of resource prices on requester in economics,a collaboration model based on resource pricing was established,and the allocation of user request was regarded as a game strategy to obtain the overall minimum offloading cost of the user in network.The article theoretically proved the existence and rationality of the Nash equilibrium.Finally,simulation results verified the effectiveness and feasibility of the proposed approach in two experimental scenes.Experimental results shows that RPC can effectively improve the network ability to mitigate DDoS attacks,and alleviate the adverse effects of server attacks under delay constraints.展开更多
This article indicates by example about power price of Henan province that the energy resources of Henan province are ＂the commons＂. According to analysis of the game of ＂the tragedy of the commons＂, this article ...This article indicates by example about power price of Henan province that the energy resources of Henan province are ＂the commons＂. According to analysis of the game of ＂the tragedy of the commons＂, this article demonstrates that, whether under complete information or not, energy commons are abused. Based upon the situation, the author gives out the strategy to solve ＂the tragedy of the commons＂ of China energy sources.展开更多
文摘虚拟电厂(virtual power plant,VPP)可以通过先进的控制技术对海量分散的分布式能源进行有效聚合,为实现低碳发展提供了有效途径。为促进VPP在碳减排方面的积极作用,提出了一种VPP联盟和配电网多主体协同优化框架。首先,基于碳排放流理论制定了电-碳综合定价方法,激励VPP低碳运行。其次,考虑多个VPP之间采用合作联盟的形式进行共享交易,构建一种基于纳什议价理论的多VPP电碳点对点(peer-to-peer,P2P)交易机制模型,实现资源共享的同时兼顾个体利益和联盟效益。在此基础上,建立一种基于电-碳综合价格引导VPP间电碳P2P交易的VPP联盟-配电网协同优化双层模型。上层模型是多VPP之间电碳P2P最优交易问题,采用自适应步长交替方向乘子法实现多VPP间的分布式求解。下层模型则是配电网的最优经济调度问题。最后,通过算例验证了所提模型和方法的有效性。
基金This work is supported by the National Natural Science Foundation of China(Grant No.61971032)Fundamental Research Funds for the Central Universities(Grant No.FRF-TP-18-008A3).
文摘The goal of delivering high-quality service has spurred research of 6G satellite communication networks.The limited resource-allocation problem has been addressed by next-generation satellite communication networks,especially multilayer networks with multiple low-Earth-orbit(LEO)and nonlow-Earth-orbit(NLEO)satellites.In this study,the resource-allocation problem of a multilayer satellite network consisting of one NLEO and multiple LEO satellites is solved.The NLEO satellite is the authorized user of spectrum resources and the LEO satellites are unauthorized users.The resource allocation and dynamic pricing problems are combined,and a dynamic gamebased resource pricing and allocation model is proposed to maximize the market advantage of LEO satellites and reduce interference between LEO and NLEO satellites.In the proposed model,the resource price is formulated as the dynamic state of the LEO satellites,using the resource allocation strategy as the control variable.Based on the proposed dynamic game model,an openloop Nash equilibrium is analyzed,and an algorithm is proposed for the resource pricing and allocation problem.Numerical simulations validate the model and algorithm.
基金National Natural Science Foundation of China(No.61941114)and(No.61801515).
文摘Resource-constrainted and located closer to users,edge servers are more vulnerable to Distributed Denial of Service(DDoS)attacks.In order to mitigate the impact of DDoS attacks on benign users,this paper designed a Resource-based Pricing Collaborative approach(RPC)in mobile edge computing.By introducing the influence of resource prices on requester in economics,a collaboration model based on resource pricing was established,and the allocation of user request was regarded as a game strategy to obtain the overall minimum offloading cost of the user in network.The article theoretically proved the existence and rationality of the Nash equilibrium.Finally,simulation results verified the effectiveness and feasibility of the proposed approach in two experimental scenes.Experimental results shows that RPC can effectively improve the network ability to mitigate DDoS attacks,and alleviate the adverse effects of server attacks under delay constraints.
文摘This article indicates by example about power price of Henan province that the energy resources of Henan province are ＂the commons＂. According to analysis of the game of ＂the tragedy of the commons＂, this article demonstrates that, whether under complete information or not, energy commons are abused. Based upon the situation, the author gives out the strategy to solve ＂the tragedy of the commons＂ of China energy sources.
