當(dang)今(jin)傳(chuan)動(dong)工(gong)程(cheng)中(zhong)最(zui)常(chang)用(yong)的(de)就(jiu)是(shi)三(san)相(xiang)交(jiao)流(liu)感(gan)應(ying)電(dian)動(dong)機(ji)。在(zai)許(xu)多(duo)場(chang)合(he)中(zhong)，由(you)於(yu)其(qi)啟(qi)動(dong)特(te)性(xing)，這(zhe)些(xie)電(dian)動(dong)機(ji)湧(yong)直(zhi)接(jie)連(lian)接(jie)電(dian)源(yuan)係(xi)統(tong)。如(ru)果(guo)直(zhi)接(jie)在(zai)線(xian)啟(qi)動(dong)，將(jiang)會(hui)產(chan)生(sheng)高(gao)達(da)電(dian)機(ji)額(e)定(ding)電(dian)流(liu)6beidelangyongdianliu。gaidianliuhuishigongdianxitonghechuanliandekaiguanshebeiguozai。ruguozhijieqidong
，yehuichanshengjiaogaodefengzhizhuanju，zhezhongchongjibudanhuiduiqudongdiandongjichanshengchongji，erqieyehuishiyongjixiezhuangzhishousun。
HPMV中、高(gao)壓(ya)軟(ruan)啟(qi)動(dong)器(qi)是(shi)用(yong)多(duo)個(ge)可(ke)控(kong)矽(gui)串(chuan)並(bing)聯(lian)而(er)成(cheng)，可(ke)以(yi)滿(man)足(zu)不(bu)同(tong)的(de)電(dian)流(liu)及(ji)電(dian)壓(ya)要(yao)求(qiu)
，控(kong)製(zhi)可(ke)控(kong)矽(gui)的(de)觸(chu)發(fa)角(jiao)就(jiu)可(ke)以(yi)控(kong)製(zhi)輸(shu)出(chu)電(dian)壓(ya)的(de)大(da)小(xiao)。當(dang)電(dian)機(ji)啟(qi)動(dong)過(guo)程(cheng)中(zhong)，HPMV按照預先設定的啟動曲線增加電機的端電壓使電機平滑加速，從而減少了電機啟動時對電網、電機本身、相連設備的電氣及機械衝擊。當電機達到正常轉速後
，旁路接觸器接通。電機啟動完畢後
，HPMVruanqidongqijixujiankongdianjibingtigonggezhongguzhangbaohu。zairuantingjishishouxiananzhaoyuxianshedinghaodetingjiquxianpinghuadijiangdidianjideduandianyazhidaodianjitingji。ruantingkeyijiejueturantingjiyinqideshuibengshuichuixianxiangjijixiechongjidengxiangguanwenti。