随着新型电力系统建设和“双碳目标”的发展,分布式新能源和灵活性负荷在配电网中的渗透率越来越高,主动配电网的低碳经济调度面临巨大挑战。考虑系统碳排放的同时考虑车辆到电站(vehicle-to-grid,V2G)的储能特性,建立了电动汽车有序充...随着新型电力系统建设和“双碳目标”的发展,分布式新能源和灵活性负荷在配电网中的渗透率越来越高,主动配电网的低碳经济调度面临巨大挑战。考虑系统碳排放的同时考虑车辆到电站(vehicle-to-grid,V2G)的储能特性,建立了电动汽车有序充放电模型。基于可转移负荷和可中断负荷进行负荷需求响应建模,并对配电网支路潮流约束进行二阶锥松弛处理,以主动配电网调度成本最小为目标构建了一种考虑V2G储能特性与负荷需求响应的主动配电网日前低碳经济调度模型;计及风光出力不确定性得到主动配电网低碳鲁棒调度模型并采用行列生成算法(column and constraint generation,CCG)算法进行求解,以保证最坏场景的碳排放在允许范围以内。采用IEEE 33节点配电系统算例进行了验证,结果表明,所提模型能够有效降低主动配电网的调度成本和碳排放量。展开更多
Incorporating electric vehicles into smart grid,vehicle-to-Grid(V2G) makes it feasible to charge for large-scale electric vehicles,and in turn support electric vehicles,as mobile and distributed storage units,to disch...Incorporating electric vehicles into smart grid,vehicle-to-Grid(V2G) makes it feasible to charge for large-scale electric vehicles,and in turn support electric vehicles,as mobile and distributed storage units,to discharge to smart grid.In order to provide reliable and efficient services,the operator of V2 G networks needs to monitor realtime status of every plug-in electric vehicle(PEV) and then evaluate current electricity storage capability.Anonymity,aggregation and dynamic management are three basic but crucial characteristics of which the services of V2 G networks should be.However,few of existing authentication schemes for V2 G networks could satisfy them simultaneously.In this paper,we propose a secure and efficient authentication scheme with privacy-preserving for V2 G networks.The scheme makes the charging/discharging station authenticate PEVs anonymously and manage them dynamically.Moreover,the monitoring data collected by the charging/discharging station could be sent to a local aggregator(LAG)in batch mode.In particular,time overheads during verification stage are independent with the number of involved PEVs,and there is no need to update the membership certificate and key pair before PEV logs out.展开更多
为减小电动汽车的充电行为对区域配电网的影响,即减少配电网负荷峰值的增加。本文综合考虑不同用户类型的电动汽车在居民小区、政府部门和商业区的行驶规律、停车规律、充电需求,以实现整个区域配电网削峰填谷为目标,提出了一种在V2G(ve...为减小电动汽车的充电行为对区域配电网的影响,即减少配电网负荷峰值的增加。本文综合考虑不同用户类型的电动汽车在居民小区、政府部门和商业区的行驶规律、停车规律、充电需求,以实现整个区域配电网削峰填谷为目标,提出了一种在V2G(vehicle-to-grid)模式下,通过分时电价引导的不同负荷类型电动汽车从时间和空间上双重互补进行有序充电的方法。以IEEE RBTS-5系统的第1,2条10 k V线路负荷需求为例,用蒙特卡洛方法模拟了本文所提的方法,验证了时空互补有序充电的方法对区域配电网总负荷削峰填谷的有效性。展开更多
文摘随着新型电力系统建设和“双碳目标”的发展,分布式新能源和灵活性负荷在配电网中的渗透率越来越高,主动配电网的低碳经济调度面临巨大挑战。考虑系统碳排放的同时考虑车辆到电站(vehicle-to-grid,V2G)的储能特性,建立了电动汽车有序充放电模型。基于可转移负荷和可中断负荷进行负荷需求响应建模,并对配电网支路潮流约束进行二阶锥松弛处理,以主动配电网调度成本最小为目标构建了一种考虑V2G储能特性与负荷需求响应的主动配电网日前低碳经济调度模型;计及风光出力不确定性得到主动配电网低碳鲁棒调度模型并采用行列生成算法(column and constraint generation,CCG)算法进行求解,以保证最坏场景的碳排放在允许范围以内。采用IEEE 33节点配电系统算例进行了验证,结果表明,所提模型能够有效降低主动配电网的调度成本和碳排放量。
基金the Natural Science Foundation of China(61102056,61201132)Fundamental Research Funds for the Central Universities of China(K5051301013)the 111 Project of China(B08038)
文摘Incorporating electric vehicles into smart grid,vehicle-to-Grid(V2G) makes it feasible to charge for large-scale electric vehicles,and in turn support electric vehicles,as mobile and distributed storage units,to discharge to smart grid.In order to provide reliable and efficient services,the operator of V2 G networks needs to monitor realtime status of every plug-in electric vehicle(PEV) and then evaluate current electricity storage capability.Anonymity,aggregation and dynamic management are three basic but crucial characteristics of which the services of V2 G networks should be.However,few of existing authentication schemes for V2 G networks could satisfy them simultaneously.In this paper,we propose a secure and efficient authentication scheme with privacy-preserving for V2 G networks.The scheme makes the charging/discharging station authenticate PEVs anonymously and manage them dynamically.Moreover,the monitoring data collected by the charging/discharging station could be sent to a local aggregator(LAG)in batch mode.In particular,time overheads during verification stage are independent with the number of involved PEVs,and there is no need to update the membership certificate and key pair before PEV logs out.
文摘为减小电动汽车的充电行为对区域配电网的影响,即减少配电网负荷峰值的增加。本文综合考虑不同用户类型的电动汽车在居民小区、政府部门和商业区的行驶规律、停车规律、充电需求,以实现整个区域配电网削峰填谷为目标,提出了一种在V2G(vehicle-to-grid)模式下,通过分时电价引导的不同负荷类型电动汽车从时间和空间上双重互补进行有序充电的方法。以IEEE RBTS-5系统的第1,2条10 k V线路负荷需求为例,用蒙特卡洛方法模拟了本文所提的方法,验证了时空互补有序充电的方法对区域配电网总负荷削峰填谷的有效性。
