高(Gao)铁(Tie)的(De)动(Dong)力(Li)来(Lai)源(Yuan)主(Zhu)要(Yao)是(Shi)电(Dian)力(Li)。(?)高(Gao)铁(Tie)通(Tong)过(Guo)电(Dian)力(Li)驱(Qu)动(Dong)系(Xi)统(Tong)运(Yun)行(Xing)，(?)这(Zhe)种(Zhong)电(Dian)力(Li)驱(Qu)动(Dong)系(Xi)统(Tong)依(Yi)赖(Lai)于(Yu)电(Dian)网(Wang)提(Ti)供(Gong)的(De)高(Gao)压(Ya)电(Dian)。(?)高(Gao)铁(Tie)的(De)供(Gong)电(Dian)电(Dian)压(Ya)通(Tong)常(Chang)为(Wei)27.5千(Qian)伏(Fu)，(?)电(Dian)力(Li)通(Tong)过(Guo)特(Te)殊(Shu)的(De)输(Shu)电(Dian)系(Xi)统(Tong)传(Chuan)输(Shu)到(Dao)高(Gao)铁(Tie)的(De)动(Dong)车(Che)组(Zu)。(?)废(Fei)旧(Jiu)火(Huo)车(Che)头(Tou)出(Chu)售(Shou),二(?)手(Shou)火(Huo)车(Che)车(Che)厢(Xiang)改(Gai)装(Zhuang),废(Fei)旧(Jiu)火(Huo)车(Che)厢(Xiang)回(Hui)收(Shou)介(Jie)绍(Shao)高(Gao)铁(Tie)的(De)电(Dian)力(Li)驱(Qu)动(Dong)系(Xi)统(Tong)主(Zhu)要(Yao)包(Bao)括(Kuo)以(Yi)下(Xia)几(Ji)个(Ge)关(Guan)键(Jian)部(Bu)分(Fen)：(?)

 供(Gong)电(Dian)系(Xi)统(Tong)：(?)高(Gao)铁(Tie)通(Tong)过(Guo)轨(Gui)道(Dao)上(Shang)空(Kong)的(De)接(Jie)触(Chu)网(Wang)获(Huo)得(De)电(Dian)能(Neng)。(?)接(Jie)触(Chu)网(Wang)通(Tong)过(Guo)动(Dong)车(Che)组(Zu)车(Che)顶(Ding)的(De)受(Shou)电(Dian)弓(Gong)将(Jiang)电(Dian)流(Liu)传(Chuan)递(Di)到(Dao)动(Dong)车(Che)组(Zu)的(De)牵(Qian)引(Yin)系(Xi)统(Tong)。(?)受(Shou)电(Dian)弓(Gong)与(Yu)接(Jie)触(Chu)网(Wang)呈(Cheng)“(?)Z”(?)字(Zi)形(Xing)接(Jie)触(Chu)，(?)以(Yi)确(Que)保(Bao)电(Dian)流(Liu)供(Gong)应(Ying)的(De)稳(Wen)定(Ding)性(Xing)，(?)同(Tong)时(Shi)避(Bi)免(Mian)在(Zai)某(Mou)一(Yi)个(Ge)点(Dian)上(Shang)持(Chi)续(Xu)产(Chan)生(Sheng)摩(Mo)擦(Ca)影(Ying)响(Xiang)使(Shi)用(Yong)寿(Shou)命(Ming)。(?)

 驱(Qu)动(Dong)系(Xi)统(Tong)：(?)高(Gao)铁(Tie)的(De)驱(Qu)动(Dong)系(Xi)统(Tong)主(Zhu)要(Yao)由(You)电(Dian)动(Dong)机(Ji)、(?)齿(Chi)轮(Lun)箱(Xiang)、(?)联(Lian)轴(Zhou)器(Qi)等(Deng)组(Zu)成(Cheng)。(?)电(Dian)动(Dong)机(Ji)是(Shi)驱(Qu)动(Dong)系(Xi)统(Tong)的(De)部(Bu)件(Jian)，(?)通(Tong)过(Guo)电(Dian)磁(Ci)感(Gan)应(Ying)原(Yuan)理(Li)产(Chan)生(Sheng)动(Dong)力(Li)。(?)齿(Chi)轮(Lun)箱(Xiang)将(Jiang)电(Dian)动(Dong)机(Ji)产(Chan)生(Sheng)的(De)动(Dong)力(Li)传(Chuan)递(Di)到(Dao)车(Che)轮(Lun)，(?)联(Lian)轴(Zhou)器(Qi)则(Ze)连(Lian)接(Jie)电(Dian)动(Dong)机(Ji)和(He)齿(Chi)轮(Lun)箱(Xiang)，(?)传(Chuan)递(Di)动(Dong)力(Li)并(Bing)缓(Huan)冲(Chong)振(Zhen)动(Dong)。(?)

 电(Dian)力(Li)转(Zhuan)换(Huan)与(Yu)分(Fen)配(Pei)：(?)进(Jin)入(Ru)动(Dong)车(Che)的(De)电(Dian)流(Liu)经(Jing)过(Guo)高(Gao)压(Ya)设(She)备(Bei)箱(Xiang)、(?)牵(Qian)引(Yin)变(Bian)压(Ya)器(Qi)等(Deng)设(She)备(Bei)的(De)中(Zhong)转(Zhuan)，(?)转(Zhuan)换(Huan)成(Cheng)不(Bu)同(Tong)类(Lei)型(Xing)的(De)恒(Heng)定(Ding)电(Dian)流(Liu)，(?)供(Gong)给(Gei)不(Bu)同(Tong)设(She)备(Bei)使(Shi)用(Yong)。(?)例(Li)如(Ru)，(?)AC220V供(Gong)给(Gei)动(Dong)车(Che)上(Shang)电(Dian)源(Yuan)插(Cha)座(Zuo)，(?)用(Yong)于(Yu)笔(Bi)记(Ji)本(Ben)、(?)手(Shou)机(Ji)等(Deng)小(Xiao)功(Gong)率(Lu)电(Dian)器(Qi)；(?)单(Dan)相(Xiang)AC400V供(Gong)给(Gei)换(Huan)气(Qi)装(Zhuang)置(Zhi)、(?)动(Dong)车(Che)空(Kong)调(Diao)、(?)餐(Can)厅(Ting)电(Dian)茶(Cha)炉(Lu)等(Deng)设(She)备(Bei)；(?)DC100V持(Chi)续(Xu)输(Shu)出(Chu)电(Dian)能(Neng)，(?)保(Bao)持(Chi)车(Che)厢(Xiang)灯(Deng)光(Guang)明(Ming)亮(Liang)。(?)

 环(Huan)境(Jing)友(You)好(Hao)：(?)相(Xiang)比(Bi)传(Chuan)统(Tong)燃(Ran)油(You)驱(Qu)动(Dong)方(Fang)式(Shi)，(?)电(Dian)力(Li)驱(Qu)动(Dong)具(Ju)有(You)没(Mei)有(You)污(Wu)染(Ran)、(?)环(Huan)境(Jing)友(You)好(Hao)的(De)优(You)点(Dian)。(?)此(Ci)外(Wai)，(?)电(Dian)力(Li)驱(Qu)动(Dong)系(Xi)统(Tong)可(Ke)以(Yi)承(Cheng)载(Zai)更(Geng)多(Duo)乘(Cheng)客(Ke)，(?)因(Yin)为(Wei)电(Dian)力(Li)动(Dong)力(Li)系(Xi)统(Tong)的(De)功(Gong)率(Lu)/重(Zhong)量(Liang)比(Bi)较(Jiao)大(Da)。(?)

总(Zong)的(De)来(Lai)说(Shuo)，(?)高(Gao)铁(Tie)的(De)动(Dong)力(Li)来(Lai)源(Yuan)是(Shi)通(Tong)过(Guo)电(Dian)网(Wang)提(Ti)供(Gong)的(De)高(Gao)压(Ya)电(Dian)，(?)经(Jing)过(Guo)的(De)电(Dian)力(Li)传(Chuan)输(Shu)系(Xi)统(Tong)和(He)维(Wei)护(Hu)保(Bao)障(Zhang)，(?)实(Shi)现(Xian)有(You)效(Xiao)、(?)安(An)全(Quan)的(De)运(Yun)行(Xing)。(?)