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

一种基于含碳电价的充电模式电动公交车低碳充电方法 Download PDF

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CN114971749B
CN114971749B CN202210894676.4A CN202210894676A CN114971749B CN 114971749 B CN114971749 B CN 114971749B CN 202210894676 A CN202210894676 A CN 202210894676A CN 114971749 B CN114971749 B CN 114971749B
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刘盼盼
章锐
周吉
钱俊良
邰伟
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Liyang Research Institute of Southeast University
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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

一种基于含碳电价的充电模式电动公交车低碳充电方法
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(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
Figure 79815DEST_PATH_IMAGE001
、电动公交车返回到站时间
Figure 856010DEST_PATH_IMAGE002
,电动公交车发车时电量
Figure 370168DEST_PATH_IMAGE003
、电动公交 车返回到站时剩余电量
Figure 234219DEST_PATH_IMAGE004
,以及电网含碳电价
Figure 907646DEST_PATH_IMAGE005
步骤(2)构建充电模式下电动公交车充电状态矩阵,基于电动公交车发车时间
Figure 198950DEST_PATH_IMAGE001
、电动公交车返回到站时间
Figure 200404DEST_PATH_IMAGE006
,构建电动公交车充电状态矩阵;
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(1)中,采集的电动公交车发车时间
Figure 258358DEST_PATH_IMAGE001
、电 动公交车返回到站时间
Figure 396079DEST_PATH_IMAGE002
,电动公交车发车时电量
Figure 123863DEST_PATH_IMAGE003
、电动公交车返回到站时剩余电量
Figure 737247DEST_PATH_IMAGE004
,以及电网含碳电价
Figure 208680DEST_PATH_IMAGE005
如公式(1)所示:
Figure 200907DEST_PATH_IMAGE007
(1)
式中:
Figure 489806DEST_PATH_IMAGE008
为第i辆电动公交车第k轮次发车时间;
Figure 200273DEST_PATH_IMAGE009
为第i辆电动公交车第k轮次 返回到站时间;
Figure 209817DEST_PATH_IMAGE010
为第i辆电动公交车第k轮次发车时电量;
Figure 446763DEST_PATH_IMAGE011
为第i辆电动公交车第k轮 次返回到站时剩余电量;
Figure 516350DEST_PATH_IMAGE012
t时刻电网含碳电价。
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
Figure 979693DEST_PATH_IMAGE013
、电动公交车返回到站时间
Figure 651983DEST_PATH_IMAGE014
、电动公交车发车时电量
Figure 884381DEST_PATH_IMAGE015
、电动公交车返回到站时剩余 电量
Figure 390448DEST_PATH_IMAGE016
,构建充电模式下电动公交车充电状态矩阵
Figure 934562DEST_PATH_IMAGE017
,如公式(2)所示:
Figure 551488DEST_PATH_IMAGE018
(2)
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:
Figure 497448DEST_PATH_IMAGE019
(3)
式中:
Figure 908837DEST_PATH_IMAGE020
为第i辆电动公交车第k+1轮次发车时间;
Figure 81193DEST_PATH_IMAGE021
为第i辆公交车在时间段(
Figure 360864DEST_PATH_IMAGE022
Figure 302276DEST_PATH_IMAGE023
)内的平均含碳电价。
作为本发明的一种优选方案,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
Figure 150146DEST_PATH_IMAGE024
可以满足第k+1轮次行驶要求,即
Figure 934431DEST_PATH_IMAGE025
时,分以下两种情况计算:
1)当
Figure 627581DEST_PATH_IMAGE026
,第i辆电动公交车第k轮次时间段平均含碳电价高于第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不充电;电动公交车充电状态 矩阵
Figure 423498DEST_PATH_IMAGE027
计算如公式(4)所示:
Figure 301324DEST_PATH_IMAGE028
(4)
2)当
Figure 448272DEST_PATH_IMAGE029
,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
Figure 210692DEST_PATH_IMAGE030
如公式(5)所示:
Figure 985750DEST_PATH_IMAGE031
(5)
式中:
Figure 909843DEST_PATH_IMAGE032
为第i辆公交车在时间段
Figure 544087DEST_PATH_IMAGE033
内的充电时长,
Figure 703673DEST_PATH_IMAGE034
为第i辆电动公交 车的初始SOC值,
Figure 739762DEST_PATH_IMAGE035
为第i辆电动公交车的电池电量,
Figure 834757DEST_PATH_IMAGE036
为第i辆电动公交车在t时刻的充 电功率,
Figure 815351DEST_PATH_IMAGE037
为第i辆电动公交车的充电效率;
Figure 919574DEST_PATH_IMAGE038
表示对时 间段
Figure 544590DEST_PATH_IMAGE039
内分时电价由小到大进行重新排序,
Figure 935120DEST_PATH_IMAGE040
为排序后分时电价对应的时刻,在
Figure 278377DEST_PATH_IMAGE040
中选择前
Figure 186290DEST_PATH_IMAGE041
个时刻进行充电。
作为本发明的一种优选方案,所述步骤(5)中,当第i辆电动公交车返回到站时剩 余电量
Figure 790446DEST_PATH_IMAGE042
不能满足第k+1轮次行驶要求,即
Figure 492823DEST_PATH_IMAGE043
时,则需要在时间段
Figure 323376DEST_PATH_IMAGE044
内进 行强制充电,具体低碳充电方法如下所示:
1)当时间段
Figure 894035DEST_PATH_IMAGE045
内平均含碳电价高于时间段
Figure 228064DEST_PATH_IMAGE046
内含碳电价,即
Figure 101342DEST_PATH_IMAGE047
时,则选择在时间段
Figure 278246DEST_PATH_IMAGE048
内只充到满足第k+1轮次行驶需求电量
Figure 262382DEST_PATH_IMAGE049
即可, 充电矩阵
Figure 982076DEST_PATH_IMAGE050
计算如公式(6)所示:
Figure 885310DEST_PATH_IMAGE051
(6)
2)当时间段
Figure 690455DEST_PATH_IMAGE052
内平均含碳电价低于时间段
Figure 478283DEST_PATH_IMAGE053
内含碳电价,即
Figure 911538DEST_PATH_IMAGE054
时,则选择在时间段
Figure 126619DEST_PATH_IMAGE055
内一直充电,直至电量达到初始SOC值的90%,充电 矩阵
Figure 12535DEST_PATH_IMAGE056
如公式(5)所示。
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:
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
Figure 604053DEST_PATH_IMAGE001
、电动公交车返回到站时间
Figure 32761DEST_PATH_IMAGE002
,电动公交车发车时电量
Figure 277797DEST_PATH_IMAGE003
、电动公交车 返回到站时剩余电量
Figure 57535DEST_PATH_IMAGE004
,以及电网含碳电价
Figure 921585DEST_PATH_IMAGE005
具体地,采集的电动公交车发车时间
Figure 329433DEST_PATH_IMAGE001
、电动公交车返回到站时间
Figure 151895DEST_PATH_IMAGE002
,电动公交 车发车时电量
Figure 887770DEST_PATH_IMAGE003
、电动公交车返回到站时剩余电量
Figure 945725DEST_PATH_IMAGE004
,以及电网含碳电价
Figure 83445DEST_PATH_IMAGE005
如公式(1) 所示:
Figure 76809DEST_PATH_IMAGE057
(1)
式中:
Figure 424614DEST_PATH_IMAGE008
为第i辆电动公交车第k轮次发车时间;
Figure 896046DEST_PATH_IMAGE009
为第i辆电动公交车第k轮次 返回到站时间;
Figure 153852DEST_PATH_IMAGE010
为第i辆电动公交车第k轮次发车时电量;
Figure 177172DEST_PATH_IMAGE011
为第i辆电动公交车第k轮 次返回到站时剩余电量;
Figure 887639DEST_PATH_IMAGE012
t时刻电网含碳电价。
步骤(2)构建充电模式下电动公交车充电状态矩阵,基于电动公交车发车时间
Figure 162763DEST_PATH_IMAGE013
、电动公交车返回到站时间
Figure 411428DEST_PATH_IMAGE014
,构建电动公交车充电状态矩阵;
具体地,基于采集的电动公交车发车时间
Figure 481015DEST_PATH_IMAGE013
、电动公交车返回到站时间
Figure 678778DEST_PATH_IMAGE014
、电动 公交车发车时电量
Figure 616647DEST_PATH_IMAGE015
、电动公交车返回到站时剩余电量
Figure 849045DEST_PATH_IMAGE016
,构建充电模式下电动公交车 充电状态矩阵
Figure 823954DEST_PATH_IMAGE017
,如公式(2)所示:
Figure 899227DEST_PATH_IMAGE058
(2)
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:
Figure 250574DEST_PATH_IMAGE059
(3)
式中:
Figure 337478DEST_PATH_IMAGE020
为第i辆电动公交车第k+1轮次发车时间;
Figure 139081DEST_PATH_IMAGE021
为第i辆公交车在时间段(
Figure 45857DEST_PATH_IMAGE022
Figure 200895DEST_PATH_IMAGE060
)内的平均含碳电价。
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;
具体地,在第i辆电动公交车第k轮次返回到站时剩余电量
Figure 532519DEST_PATH_IMAGE024
可以满足第k+1轮 次行驶要求,即
Figure 849231DEST_PATH_IMAGE025
时,分以下两种情况计算:
1)当
Figure 508883DEST_PATH_IMAGE026
,第i辆电动公交车第k轮次时间段平均含碳电价高于第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不充电;电动公交车充电状态矩 阵
Figure 326666DEST_PATH_IMAGE027
计算如公式(4)所示:
Figure 388163DEST_PATH_IMAGE061
(4)
2)当
Figure 406934DEST_PATH_IMAGE029
,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
Figure 412937DEST_PATH_IMAGE030
如公式(5)所示:
Figure 909777DEST_PATH_IMAGE031
(5)
式中:
Figure 825780DEST_PATH_IMAGE032
为第i辆公交车在时间段
Figure 874508DEST_PATH_IMAGE033
内的充电时长,
Figure 508751DEST_PATH_IMAGE034
为第i辆电动公 交车的初始SOC值,
Figure 809283DEST_PATH_IMAGE035
为第i辆电动公交车的电池电量,
Figure 438847DEST_PATH_IMAGE036
为第i辆电动公交车在t时刻的 充电功率,
Figure 799421DEST_PATH_IMAGE037
为第i辆电动公交车的充电效率;
Figure 920961DEST_PATH_IMAGE062
表示对 时间段
Figure 618659DEST_PATH_IMAGE039
内分时电价由小到大进行重新排序,
Figure 509254DEST_PATH_IMAGE040
为排序后分时电价对应的时刻, 在
Figure 899784DEST_PATH_IMAGE040
中选择前
Figure 243041DEST_PATH_IMAGE041
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;
具体地,当第i辆电动公交车返回到站时剩余电量
Figure 150954DEST_PATH_IMAGE042
不能满足第k+1轮次行驶要 求,即
Figure 755111DEST_PATH_IMAGE043
时,则需要在时间段
Figure 457488DEST_PATH_IMAGE044
内进行强制充电,具体低碳充电方法如下所 示:
1)当时间段
Figure 22461DEST_PATH_IMAGE045
内平均含碳电价高于时间段
Figure 327541DEST_PATH_IMAGE046
内含碳电价,即
Figure 192728DEST_PATH_IMAGE047
时,则选择在时间段
Figure 66007DEST_PATH_IMAGE048
内只充到满足第k+1轮次行驶需求电量
Figure 242910DEST_PATH_IMAGE049
即可, 充电矩阵
Figure 227046DEST_PATH_IMAGE050
计算如公式(6)所示:
Figure 946741DEST_PATH_IMAGE063
(6)
2)当时间段
Figure 849975DEST_PATH_IMAGE052
内平均含碳电价低于时间段
Figure 655120DEST_PATH_IMAGE053
内含碳电价,即
Figure 442947DEST_PATH_IMAGE054
时,则选择在时间段
Figure 876203DEST_PATH_IMAGE055
内一直充电,直至电量达到初始SOC值的90%, 充电矩阵
Figure 91283DEST_PATH_IMAGE056
如公式(5)所示。
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
Figure 761512DEST_PATH_IMAGE001
、电动公交车返回到站时间
Figure 635796DEST_PATH_IMAGE002
,电动公交车发车时电量
Figure 167271DEST_PATH_IMAGE003
、电动公交车返 回到站时剩余电量
Figure 244948DEST_PATH_IMAGE004
,以及电网含碳电价
Figure 887282DEST_PATH_IMAGE005
,如公式(1)所示:
Figure 577590DEST_PATH_IMAGE006
(1)
式中:
Figure 217650DEST_PATH_IMAGE007
为第i辆电动公交车第k轮次发车时间;
Figure 297470DEST_PATH_IMAGE008
为第i辆电动公交车第k轮次返回 到站时间;
Figure 415599DEST_PATH_IMAGE009
为第i辆电动公交车第k轮次发车时电量;
Figure 15208DEST_PATH_IMAGE010
为第i辆电动公交车第k轮次返 回到站时剩余电量;
Figure 639218DEST_PATH_IMAGE011
t时刻电网含碳电价;
步骤(2)构建充电模式下电动公交车充电状态矩阵
Figure 691488DEST_PATH_IMAGE012
, 基于采集的电动公交车发车 时间
Figure 613307DEST_PATH_IMAGE013
、电动公交车返回到站时间
Figure 582269DEST_PATH_IMAGE014
、电动公交车发车时电量
Figure 360870DEST_PATH_IMAGE015
、电动公交车返回到站 时剩余电量
Figure 103698DEST_PATH_IMAGE016
,构建充电模式下电动公交车充电状态矩阵
Figure 373749DEST_PATH_IMAGE017
,如式(2)所示:
Figure 947949DEST_PATH_IMAGE018
(2)
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。
2.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(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:
Figure 100713DEST_PATH_IMAGE019
(3)
式中:
Figure 111263DEST_PATH_IMAGE020
为第i辆电动公交车第k+1轮次发车时间;
Figure 702782DEST_PATH_IMAGE021
为第i辆公交车在时间段(
Figure 69172DEST_PATH_IMAGE022
Figure 205886DEST_PATH_IMAGE023
)内的平均含碳电价。
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
Figure 923307DEST_PATH_IMAGE024
可以满足 第k+1轮次行驶要求时,分以下两种情况计算:
1)当
Figure 52937DEST_PATH_IMAGE025
,即第i辆电动公交车第k轮次时间段平均含碳电价高于第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不充电;电动公交车充电状态矩阵
Figure 523101DEST_PATH_IMAGE026
计算如公式(4)所示:
Figure 79985DEST_PATH_IMAGE027
(4)
2)当
Figure 81439DEST_PATH_IMAGE028
,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
Figure 706105DEST_PATH_IMAGE029
如公式(5)所示:
Figure 47087DEST_PATH_IMAGE030
(5)
式中:
Figure 24140DEST_PATH_IMAGE031
为第i辆公交车在时间段
Figure 247310DEST_PATH_IMAGE032
内的充电时长,
Figure 922005DEST_PATH_IMAGE033
为第i辆电动公交车的 初始SOC值,
Figure 930544DEST_PATH_IMAGE034
为第i辆电动公交车的电池电量,
Figure 563650DEST_PATH_IMAGE035
为第i辆电动公交车在t时刻的充电功 率,
Figure 477380DEST_PATH_IMAGE036
为第i辆电动公交车的充电效率;
Figure 1771DEST_PATH_IMAGE037
表示对时 间段
Figure 51767DEST_PATH_IMAGE038
内分时电价由小到大进行重新排序,
Figure 121354DEST_PATH_IMAGE039
为排序后分时电价对应的时刻, 在
Figure 66920DEST_PATH_IMAGE040
中选择前
Figure 880155DEST_PATH_IMAGE041
个时刻进行充电。
4.根据权利要求3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(5)中,当第i辆电动公交车返回到站时剩余电量
Figure 50236DEST_PATH_IMAGE042
不能满足第k+1轮 次行驶要求时,则需要在时间段
Figure 539992DEST_PATH_IMAGE043
内进行强制充电,具体低碳充电方法如下所示:
1)当时间段
Figure 428314DEST_PATH_IMAGE044
内平均含碳电价高于时间段
Figure 779661DEST_PATH_IMAGE045
内含碳电价,即
Figure 617298DEST_PATH_IMAGE046
时,则选择在时间段
Figure 731752DEST_PATH_IMAGE047
内只充到满足第k+1轮次行驶需求电量即可,电动 公交车充电状态矩阵
Figure 638528DEST_PATH_IMAGE048
计算如公式(6)所示:
Figure 308412DEST_PATH_IMAGE049
(6)
2)当时间段
Figure 187507DEST_PATH_IMAGE050
内平均含碳电价低于时间段
Figure 35377DEST_PATH_IMAGE051
内含碳电价,即
Figure 180182DEST_PATH_IMAGE052
时,则选择在时间段
Figure 76593DEST_PATH_IMAGE053
内一直充电,直至电量达到初始SOC值的90%,电动 公交车充电状态矩阵
Figure 138090DEST_PATH_IMAGE054
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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