CN114971749B - 一种基于含碳电价的充电模式电动公交车低碳充电方法 - Google Patents
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Abstract
本发明公开了一种基于含碳电价的充电模式电动公交车低碳充电方法,该方法主要包括:电动公交车运行信息采集技术,充电模式下电动公交车充电状态矩阵构建技术,电动公交车可充电时间段平均含碳电价计算方法,电动公交车返回到站时剩余电量满足下一次行驶要求时的低碳充电方法,电动公交车返回到站时剩余电量不满足下一次行驶要求时的低碳充电方法,根据可选择充电时间段,决定充电容量,对电动汽车进行低碳充电。本发明提供的一种基于含碳电价的充电模式电动公交车低碳充电方法,可以根据含碳电价,优化电动公交车充电行为,使电动公交车实现用能低碳化,助力电网碳减排,助力早日实现碳达峰碳中和目标,具有重要意义。
Description
技术领域
本发明涉及电力系统领域,尤其涉及一种基于含碳电价的充电模式电动公交车低碳充电方法。
背景技术
双碳目标下,国家各个行业均采取措施响应国家双碳目标,积极推进碳减排工作。
近年来,各城市电动公交车数量急剧增长。作为国家财政部、科技部确定的“节能与新能源汽车示范推广”13个试点城市之一的深圳,最早在全国范围内推广新能源车辆,数据显示,深圳市新能源汽车保有量已达6.7万辆,深圳每天有16359辆纯电动公交车穿梭于城市之间,已实现专营公交100%纯电动化,成为全球新能源公交应用规模最大、车型最齐的城市。
据中国客车统计信息网数据显示,2021年1-7月,26家上报新能源客车销量的企业累计销量为27661辆。其中,新能源公交车销量为19621辆,占比70.93%。值得注意的是,这19621辆新能源公交车全部为5米以上车型。电动公交车电池容量大,充电负荷高,运行规律性相对较强,可控性高,适当改变其充电行为,可促进电网碳排放量的减少。
然而,目前关于电动公交车低碳用能行为的相关研究较少,且含碳电价是未来的趋势,迫切需要结合含碳电价,研究电动公交车低碳充电方法,促进电动公交车碳减排。
发明内容
鉴于上述现有的电动公交车低碳充电方法存在的问题,提出了本发明。
因此,本发明的目的是提供一种基于含碳电价的充电模式电动公交车低碳充电方法,基于本发明提供的方法,可以优化电动公交车的充电行为,实现电动公交车充电低碳化,促进电动公交车碳减排。
为实现上述目的,本发明提出一种基于含碳电价的充电模式电动公交车低碳充电方法。所述方法包括如下步骤:
步骤(3)提出电动公交车可充电时间段平均含碳电价计算方法,计算电动公交车在可充电时间段的平均含碳电价,与其他可充电时间段的平均含碳电价进行对比,给电动公交车充电时间段提供选择;
步骤(4)构建电动公交车返回到站时剩余电量满足下一次行驶要求时的低碳充电方法,根据可选择充电时间段平均含碳电价,决定充电容量,对电动公交车进行低碳充电;
步骤(5)构建电动公交车返回到站时剩余电量不满足下一次行驶要求时的低碳充电方法,根据可选择充电时间段,决定充电容量,对电动公交车进行低碳充电;
步骤(6)更新电动公交车充电状态矩阵,运用上述低碳充电方法,对下一轮次返回到站的电动公交车进行低碳充电,如此循环,直到一天运营结束。
作为本发明的一种优选方案,所述步骤(2)中,基于采集的电动公交车发车时间、电动公交车返回到站时间、电动公交车发车时电量、电动公交车返回到站时剩余
电量,构建充电模式下电动公交车充电状态矩阵,如公式(2)所示:
式中:1表示电动公交车处于充电状态,0表示电动公交车处于未充电状态。
作为本发明的一种优选方案,所述步骤(3)中,电动公交车可充电时间段平均含碳电价计算方法如公式(3)所示:
2)当,即第i辆电动公交车第k轮次时间段平均含碳电价小于第i辆电
动公交车第k+1轮次时间段的平均含碳电价,则第i辆电动公交车在本轮次时间段充电,直
至电量达到初始SOC值的90%时停止充电,电动公交车充电状态矩阵如公式(5)所示:
式中: 为第i辆公交车在时间段内的充电时长,为第i辆电动公交
车的初始SOC值,为第i辆电动公交车的电池电量,为第i辆电动公交车在t时刻的充
电功率,为第i辆电动公交车的充电效率;表示对时
间段内分时电价由小到大进行重新排序,为排序后分时电价对应的时刻,在中选择前个时刻进行充电。
作为本发明的一种优选方案,所述步骤(6)中,运用上述低碳充电方法,对下一轮次k+1返回到站的电动公交车进行低碳充电,重复步骤(4)和步骤(5),如此循环,直到一天运营结束,实现对电动公交车低碳充电,从电动公交车角度促进碳减排。
本发明的有益效果是:通过提出电动公交车运行信息采集技术,采集电动公交车运行信息;然后构建充电模式下电动公交车充电状态矩阵;其次提出电动公交车可充电时间段平均含碳电价计算方法,计算电动公交车在可充电时间段的平均含碳电价,与其他可充电时间段的平均含碳电价进行对比,给电动公交车充电时间段提供选择;再次,构建电动公交车返回到站时剩余电量满足下一次行驶要求时的低碳充电方法及电动公交车返回到站时剩余电量不满足下一次行驶要求时的低碳充电方法,根据可选择充电时间段,决定充电容量,对电动汽车进行低碳充电。最后更新电动公交车充电状态矩阵,运用上述低碳充电方法,对下一轮次返回到站的电动公交车进行低碳充电,如此循环,直到一天运营结束。本发明提供的一种基于含碳电价的充电模式电动公交车低碳充电方法,可以根据含碳电价,优化电动公交车充电行为,使电动公交车实现用能低碳化,助力电网碳减排,助力早日实现碳达峰碳中和目标,具有重要意义。
附图说明
图1为本发明的一种基于含碳电价的充电模式电动公交车低碳充电方法的流程框图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
如图1所示,本发明提供了一种基于含碳电价的充电模式电动公交车低碳充电方法,所述方法包括以下步骤:
式中:1表示电动公交车处于充电状态,0表示电动公交车处于未充电状态。
步骤(3)提出电动公交车可充电时间段平均含碳电价计算方法,计算电动公交车在可充电时间段的平均含碳电价,与其他可充电时间段的平均含碳电价进行对比,给电动公交车充电时间段提供选择;
具体地,电动公交车可充电时间段平均含碳电价计算方法如公式(3)所示:
步骤(4)构建电动公交车返回到站时剩余电量满足下一次行驶要求时的低碳充电方法,根据可选择充电时间段平均含碳电价,决定充电容量,对电动公交车进行低碳充电;
2)当,即第i辆电动公交车第k轮次时间段平均含碳电价小于第i辆电动
公交车第k+1轮次时间段的平均含碳电价,则第i辆电动公交车在本轮次时间段充电,直至
电量达到初始SOC值的90%时停止充电,电动公交车充电状态矩阵如公式(5)所示:
式中: 为第i辆公交车在时间段内的充电时长,为第i辆电动公
交车的初始SOC值,为第i辆电动公交车的电池电量,为第i辆电动公交车在t时刻的
充电功率,为第i辆电动公交车的充电效率;表示对
时间段内分时电价由小到大进行重新排序,为排序后分时电价对应的时刻,
在中选择前个时刻进行充电。
步骤(5)构建电动公交车返回到站时剩余电量不满足下一次行驶要求时的低碳充电方法,根据可选择充电时间段,决定充电容量,对电动公交车进行低碳充电;
步骤(6)更新电动公交车充电状态矩阵,运用上述低碳充电方法,对下一轮次返回到站的电动公交车进行低碳充电,如此循环,直到一天运营结束。
具体地,运用上述低碳充电方法,对下一轮次k+1返回到站的电动公交车进行低碳充电,重复步骤(4)和步骤(5),如此循环,直到一天运营结束,实现对电动公交车低碳充电,从电动公交车角度促进碳减排。
以上实施例仅用以说明本发明的技术方案而非对其限制,尽管参照上述实施例对本发明进行了详细说明,所属领域的普通技术人员应当理解:依然可以对本发明的具体实施方式进行修改或者等同替换,而未脱离本发明精神和范围的任何修改或者等同替换,其均应涵盖在本权利要求范围当中。
Claims (5)
1.一种基于含碳电价的充电模式电动公交车低碳充电方法,其特征在于,所述方法包括如下步骤:
步骤(1)提出电动公交车运行信息采集技术,电动公交车运行信息采集包括:电动公交
车发车时间、电动公交车返回到站时间,电动公交车发车时电量、电动公交车返
回到站时剩余电量,以及电网含碳电价,如公式(1)所示:
步骤(2)构建充电模式下电动公交车充电状态矩阵, 基于采集的电动公交车发车
时间、电动公交车返回到站时间、电动公交车发车时电量、电动公交车返回到站
时剩余电量,构建充电模式下电动公交车充电状态矩阵,如式(2)所示:
式中:1表示电动公交车处于充电状态,0表示电动公交车处于未充电状态;
步骤(3)提出电动公交车可充电时间段平均含碳电价计算方法,计算电动公交车在当前发车轮次可充电时间段的平均含碳电价,与下一发车轮次可充电时间段的平均含碳电价进行对比,给电动公交车充电时间段提供选择;
步骤(4)构建电动公交车返回到站时剩余电量满足下一次行驶要求时的低碳充电方法,根据可选择充电时间段的平均含碳电价,决定充电容量,对电动公交车进行低碳充电;
若当前发车轮次可充电时间段的平均含碳电价高于下一发车轮次可充电时间段的平均含碳电价,则选择在下一发车轮次可充电时间段充电;反之,则选择在当前发车轮次可充电时间段充电;
步骤(5)构建电动公交车返回到站时剩余电量不满足下一次行驶要求时的低碳充电方法,根据可选择充电时间段的平均含碳电价,决定充电容量,对电动公交车进行低碳充电;
若当前发车轮次可充电时间段的平均含碳电价高于下一发车轮次可充电时间段的平均含碳电价,则选择在当前发车轮次可充电时间段充电到满足下一轮次行驶要求即可;反之,则选择在当前发车轮次可充电时间段将电充满;
步骤(6)更新电动公交车充电状态矩阵,运用上述低碳充电方法,对下一轮次返回到站的电动公交车进行低碳充电,如此循环,直到一天运营结束。
3.根据权利要求2所述的一种基于含碳电价的充电模式电动公交车低碳充电方法,其
特征在于,所述步骤(4)中,在第i辆电动公交车第k轮次返回到站时剩余电量可以满足
第k+1轮次行驶要求时,分以下两种情况计算:
2)当,即第i辆电动公交车第k轮次时间段平均含碳电价小于第i辆电动公交
车第k+1轮次时间段的平均含碳电价,则第i辆电动公交车在本轮次时间段充电,直至电量
达到初始SOC值的90%时停止充电,电动公交车充电状态矩阵如公式(5)所示:
5.根据权利要求1所述的一种基于含碳电价的充电模式电动公交车低碳充电方法,其特征在于,所述步骤(6)中,运用上述低碳充电方法,对下一轮次k+1返回到站的电动公交车进行低碳充电,重复步骤(4)和步骤(5),如此循环,直到一天运营结束,实现对电动公交车低碳充电,从电动公交车角度促进碳减排。
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