电动汽车充电站或充电设备集群的负荷变化情况受具体车流量、电池充电时长、电池起始荷电状态(state of charge,SOC)、充电设备数量等多种因素的影响,变化规律复杂,各个充电站的负荷曲线形态差异很大,难以从本质上表征负荷的一般性规律...电动汽车充电站或充电设备集群的负荷变化情况受具体车流量、电池充电时长、电池起始荷电状态(state of charge,SOC)、充电设备数量等多种因素的影响,变化规律复杂,各个充电站的负荷曲线形态差异很大,难以从本质上表征负荷的一般性规律。从影响充电负荷变化规律的进站车流量入手,研究电动车辆进站流量、充电时长、充电站充电能力等对充电负荷的具体影响,提出适用于充电站负荷快速计算的简化公式和计及多种影响因素的仿真方法。以西北某市为算例,结果表明,该方法能够方便、有效地预测电动汽车充电负荷的时空分布特性,为分析其对电网的影响及充电设施规划等提供依据。展开更多
California mandated that 100% of vehicles sold must be electric by 2035. As electric vehicles (EVs) reach a higher penetration of the car sector, cities will need to provide publicly accessible charging stations to me...California mandated that 100% of vehicles sold must be electric by 2035. As electric vehicles (EVs) reach a higher penetration of the car sector, cities will need to provide publicly accessible charging stations to meet the charging demand of people who do not have access to a private charging spot like a personal garage. We have chosen to limit our scope to San Diego County due to its non-trivial size, well-defined shape, and dependence on personal vehicles;this project models 100% of current vehicles as electric, roughly 2.5 million. By planning for the future, our model becomes more useful as well as more equitable. We anticipate that our model will find locations that can service multiple population centers, while also maximizing distance to other stations. Sensitivity analysis and testing of our algorithms are conducted for Coronado Island, an island with 24,697 residents. Our formulation is then scaled to set the parameters for the whole county.展开更多
文摘电动汽车充电站或充电设备集群的负荷变化情况受具体车流量、电池充电时长、电池起始荷电状态(state of charge,SOC)、充电设备数量等多种因素的影响,变化规律复杂,各个充电站的负荷曲线形态差异很大,难以从本质上表征负荷的一般性规律。从影响充电负荷变化规律的进站车流量入手,研究电动车辆进站流量、充电时长、充电站充电能力等对充电负荷的具体影响,提出适用于充电站负荷快速计算的简化公式和计及多种影响因素的仿真方法。以西北某市为算例,结果表明,该方法能够方便、有效地预测电动汽车充电负荷的时空分布特性,为分析其对电网的影响及充电设施规划等提供依据。
文摘California mandated that 100% of vehicles sold must be electric by 2035. As electric vehicles (EVs) reach a higher penetration of the car sector, cities will need to provide publicly accessible charging stations to meet the charging demand of people who do not have access to a private charging spot like a personal garage. We have chosen to limit our scope to San Diego County due to its non-trivial size, well-defined shape, and dependence on personal vehicles;this project models 100% of current vehicles as electric, roughly 2.5 million. By planning for the future, our model becomes more useful as well as more equitable. We anticipate that our model will find locations that can service multiple population centers, while also maximizing distance to other stations. Sensitivity analysis and testing of our algorithms are conducted for Coronado Island, an island with 24,697 residents. Our formulation is then scaled to set the parameters for the whole county.
