Flexibility in plug-in electric vehicle(PEV) charging can reduce the ancillary cost effects of wind variability and uncertainty on electric power systems. In this paper, we study these benefits of PEV charging, demons...Flexibility in plug-in electric vehicle(PEV) charging can reduce the ancillary cost effects of wind variability and uncertainty on electric power systems. In this paper, we study these benefits of PEV charging, demonstrating that controlled PEV charging can reduce costs associated with wind uncertainty and variability. Interestingly, we show that the system does not require complete control of PEV-charging loads to mitigate the negative cost impacts of wind variability and uncertainty. Rather, PEV owners giving the system a two-hour window of flexibility in which to recharge their vehicles provides much of the benefits that giving full charging control does.展开更多
综合能源交易合同的拟定是综合能源业务的重要环节。通过对综合能源交易合同拟定工作现状的调研,针对人工统计分析的局限与大量数据项高效精准处理需求之间的矛盾,利用计算机语言(Visual Basic for Applications,VBA),开发编写综合能源...综合能源交易合同的拟定是综合能源业务的重要环节。通过对综合能源交易合同拟定工作现状的调研,针对人工统计分析的局限与大量数据项高效精准处理需求之间的矛盾,利用计算机语言(Visual Basic for Applications,VBA),开发编写综合能源业务合同管理插件。在实际使用中,能够减少基层业务人员拟定合同文本的工作量,在提高工作效率的同时有效降低差错率,优化电力营销工作方法,对综合能源交易合同的拟定有辅助作用。展开更多
插电式电动汽车(plug-in electric vehicles,PEV)近年来发展迅速,考虑PEV并网后的差异性需求,提出一种计及PEV需求差异的智能电网调度策略:根据需求差异将PEV分为无序充电PEV、可调度充电PEV和可调度充放电PEV,之后提出考虑高低功率调...插电式电动汽车(plug-in electric vehicles,PEV)近年来发展迅速,考虑PEV并网后的差异性需求,提出一种计及PEV需求差异的智能电网调度策略:根据需求差异将PEV分为无序充电PEV、可调度充电PEV和可调度充放电PEV,之后提出考虑高低功率调控差异性将可调度PEV分为高功率可调度PEV和低功率可调度PEV。最后,构建以智能电网运行成本最小和电动汽车支付费用最小的多目标优化调度模型。算例结果表明在考虑PEV差异性需求的情况下通过合理调度PEV可以有效提高可再生能源消纳能力、降低智能电网运行成本和PEV车主支付费用。展开更多
基金financially supported by the National Science Foundation(No.1548015)
文摘Flexibility in plug-in electric vehicle(PEV) charging can reduce the ancillary cost effects of wind variability and uncertainty on electric power systems. In this paper, we study these benefits of PEV charging, demonstrating that controlled PEV charging can reduce costs associated with wind uncertainty and variability. Interestingly, we show that the system does not require complete control of PEV-charging loads to mitigate the negative cost impacts of wind variability and uncertainty. Rather, PEV owners giving the system a two-hour window of flexibility in which to recharge their vehicles provides much of the benefits that giving full charging control does.
文摘综合能源交易合同的拟定是综合能源业务的重要环节。通过对综合能源交易合同拟定工作现状的调研,针对人工统计分析的局限与大量数据项高效精准处理需求之间的矛盾,利用计算机语言(Visual Basic for Applications,VBA),开发编写综合能源业务合同管理插件。在实际使用中,能够减少基层业务人员拟定合同文本的工作量,在提高工作效率的同时有效降低差错率,优化电力营销工作方法,对综合能源交易合同的拟定有辅助作用。
文摘插电式电动汽车(plug-in electric vehicles,PEV)近年来发展迅速,考虑PEV并网后的差异性需求,提出一种计及PEV需求差异的智能电网调度策略:根据需求差异将PEV分为无序充电PEV、可调度充电PEV和可调度充放电PEV,之后提出考虑高低功率调控差异性将可调度PEV分为高功率可调度PEV和低功率可调度PEV。最后,构建以智能电网运行成本最小和电动汽车支付费用最小的多目标优化调度模型。算例结果表明在考虑PEV差异性需求的情况下通过合理调度PEV可以有效提高可再生能源消纳能力、降低智能电网运行成本和PEV车主支付费用。
