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混合型制动能量吸收装(zhuang)置(zhi)

混合型(xing),即(ji)能(neng)(neng)(neng)馈(kui)(kui)型(xing)和能(neng)(neng)(neng)耗型(xing)的组合型(xing)式,或其(qi)他两种模式组合。既(ji)具有能(neng)(neng)(neng)耗型(xing)的稳定、投资小的特(te)点(dian),又具备能(neng)(neng)(neng)馈(kui)(kui)型(xing)经济(ji)适用的优(you)势。

城市轨道(dao)交通(tong)工程中(zhong)(zhong),普遍采用(yong)直(zhi)交变(bian)压(ya)变(bian)频的(de)传动(dong)(dong)(dong)(dong)(dong)方(fang)(fang)式(shi)(shi),车(che)辆(liang)的(de)制动(dong)(dong)(dong)(dong)(dong)方(fang)(fang)式(shi)(shi)为(wei)电制动(dong)(dong)(dong)(dong)(dong)(再(zai)生(sheng)制动(dong)(dong)(dong)(dong)(dong))+机械制动(dong)(dong)(dong)(dong)(dong),运(yun)(yun)行(xing)中(zhong)(zhong)以(yi)电制动(dong)(dong)(dong)(dong)(dong)为(wei)主(zhu),机械制动(dong)(dong)(dong)(dong)(dong)为(wei)辅。列(lie)车(che)在运(yun)(yun)行(xing)过程中(zhong)(zhong),由(you)于(yu)站间(jian)距较短,列(lie)车(che)启动(dong)(dong)(dong)(dong)(dong)、制动(dong)(dong)(dong)(dong)(dong)频繁,制动(dong)(dong)(dong)(dong)(dong)能(neng)量相(xiang)当可(ke)观。根(gen)据经验(yan),地铁再(zai)生(sheng)制动(dong)(dong)(dong)(dong)(dong)产(chan)生(sheng)的(de)能(neng)量除了一定比例(一般为(wei)20%~80%,根(gen)据列(lie)车(che)运(yun)(yun)行(xing)密(mi)度和(he)区间(jian)距离的(de)不同而异)被(bei)其他相(xiang)邻列(lie)车(che)吸(xi)收(shou)(shou)利(li)用(yong)外,剩余部(bu)分(fen)将(jiang)主(zhu)要(yao)被(bei)列(lie)车(che)的(de)吸(xi)收(shou)(shou)电阻(zu)以(yi)发热(re)的(de)方(fang)(fang)式(shi)(shi)消耗(hao)掉或(huo)被(bei)线路上的(de)吸(xi)收(shou)(shou)装置(zhi)吸(xi)收(shou)(shou)。目前(qian)国内(nei)城市轨道(dao)交通(tong)主(zhu)要(yao)吸(xi)收(shou)(shou)方(fang)(fang)式(shi)(shi)是采用(yong)电阻(zu)能(neng)耗(hao)吸(xi)收(shou)(shou)装置(zhi)处理列(lie)车(che)运(yun)(yun)行(xing)过程中(zhong)(zhong)的(de)再(zai)生(sheng)能(neng)量,这不仅浪(lang)费能(neng)量,而且(qie)也增加了站内(nei)空调通(tong)风装置(zhi)的(de)负(fu)担,并使(shi)城轨建设费用(yong)和(he)运(yun)(yun)行(xing)费用(yong)增加。如能(neng)将(jiang)这部(bu)分(fen)能(neng)量吸(xi)收(shou)(shou)再(zai)利(li)用(yong),这些问(wen)题将(jiang)迎刃而解(jie)。

混合(he)型(xing),即能(neng)馈型(xing)和能(neng)耗型(xing)的组(zu)合(he)型(xing)式(shi),或其他两种模式(shi)组(zu)合(he)。既具有能(neng)耗型(xing)的稳定、投资(zi)小的特点,又(you)具备(bei)能(neng)馈型(xing)经济适用(yong)的优势。

厂区外景