The rapidly increasing penetration of electric vehicles(EVs) in modern metropolises has been witnessed during the past decade, inspired by financial subsidies as well as public awareness of climate change and environm...The rapidly increasing penetration of electric vehicles(EVs) in modern metropolises has been witnessed during the past decade, inspired by financial subsidies as well as public awareness of climate change and environment pro-tection. Integrating charging facilities, especially highpower chargers in fast charging stations, into power distribution systems remarkably alters the traditional load flow pattern, and thus imposes great challenges on the operation of distribution network in which controllable resources are rare. On the other hand, provided with appropriate incentives, the energy storage capability of electric vehicle offers a unique opportunity to facilitate the integration of distributed wind and solar power generation into power distribution system. The above trends call for thorough investigation and research on the interdependence between transportation system and power distribution system. This paper conducts a comprehensive survey on this line of research. The basic models of transportation system and power distribution system are introduced,especially the user equilibrium model, which describes the vehicular flow on each road segment and is not familiar to the readers in power system community. The modelling of interdependence across the two systems is highlighted.Taking into account such interdependence, applications ranging from long-term planning to short-term operation are reviewed with emphasis on comparing the description of traffic-power interdependence. Finally, an outlook of prospective directions and key technologies in future research is summarized.展开更多
In this paper,the problem of interferences between motors and non-motors in urban road mixed traffic network is considered and the corresponding link impedance function is presented based on travel demand.On the base ...In this paper,the problem of interferences between motors and non-motors in urban road mixed traffic network is considered and the corresponding link impedance function is presented based on travel demand.On the base of this,the main factors that influence travelers' traffic choices are all considered and a combined model including flow-split and assignment problem is proposed.Then a bilevel model with its algorithm for system optimization of urban road mixed traffic network is proposed.Finally the application of the model and its algorithm is illus-trated with a numerical example.展开更多
为提高不确定路网可靠性评估的合理性,设需求服从对数正态分布,假定出行者在随机需求作用下能够达到确定性用户均衡,运用路径算法获得流量,根据BPR(bureau of public roads)型路段特性函数以及对数正态分布的概率特性,给出了路径出行时...为提高不确定路网可靠性评估的合理性,设需求服从对数正态分布,假定出行者在随机需求作用下能够达到确定性用户均衡,运用路径算法获得流量,根据BPR(bureau of public roads)型路段特性函数以及对数正态分布的概率特性,给出了路径出行时间的随机分布,以此为基础建立了路径及OD对出行时间可靠性评估模型.用数值算例验证了评估方法的可行性,分析结果表明该方法能够合理评价需求及其波动程度、路径之间的相关程度对出行时间可靠性的影响.展开更多
基金support by the Young Elite Scientists Program of CSEE (No. JLB-2018-95)the National Natural Science Foundation of China (No. 51621065, No. U1766203)+1 种基金the support by FEDER funds through COMPETE 2020by Portuguese funds through FCT, under SAICT-PAC/0004/2015 (No. POCI-01-0145-FEDER-016434), 02/SAICT/2017 (No. POCI-01-0145-FEDER-029803) and UID/EEA/50014/2019 (No. POCI-01-0145-FEDER-006961)
文摘The rapidly increasing penetration of electric vehicles(EVs) in modern metropolises has been witnessed during the past decade, inspired by financial subsidies as well as public awareness of climate change and environment pro-tection. Integrating charging facilities, especially highpower chargers in fast charging stations, into power distribution systems remarkably alters the traditional load flow pattern, and thus imposes great challenges on the operation of distribution network in which controllable resources are rare. On the other hand, provided with appropriate incentives, the energy storage capability of electric vehicle offers a unique opportunity to facilitate the integration of distributed wind and solar power generation into power distribution system. The above trends call for thorough investigation and research on the interdependence between transportation system and power distribution system. This paper conducts a comprehensive survey on this line of research. The basic models of transportation system and power distribution system are introduced,especially the user equilibrium model, which describes the vehicular flow on each road segment and is not familiar to the readers in power system community. The modelling of interdependence across the two systems is highlighted.Taking into account such interdependence, applications ranging from long-term planning to short-term operation are reviewed with emphasis on comparing the description of traffic-power interdependence. Finally, an outlook of prospective directions and key technologies in future research is summarized.
基金the National Natural Science Foundation of China(Grant No.70631001)the National Basic Research Program of China("973")(Grant No.2006CB705500)
文摘In this paper,the problem of interferences between motors and non-motors in urban road mixed traffic network is considered and the corresponding link impedance function is presented based on travel demand.On the base of this,the main factors that influence travelers' traffic choices are all considered and a combined model including flow-split and assignment problem is proposed.Then a bilevel model with its algorithm for system optimization of urban road mixed traffic network is proposed.Finally the application of the model and its algorithm is illus-trated with a numerical example.
文摘为提高不确定路网可靠性评估的合理性,设需求服从对数正态分布,假定出行者在随机需求作用下能够达到确定性用户均衡,运用路径算法获得流量,根据BPR(bureau of public roads)型路段特性函数以及对数正态分布的概率特性,给出了路径出行时间的随机分布,以此为基础建立了路径及OD对出行时间可靠性评估模型.用数值算例验证了评估方法的可行性,分析结果表明该方法能够合理评价需求及其波动程度、路径之间的相关程度对出行时间可靠性的影响.
