地 址:地址:上海市長寧區延安中路188號2902室
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意大(da)利(li)杰弗倫GEFRAN伺(si)服變頻(pin)器(qi) 變頻(pin)器(qi)節能主要(yao)表現在風(feng)機(ji)(ji)、水(shui)泵的(de)(de)應用(yong)上。為了(le)保(bao)證生(sheng)產的(de)(de)可靠(kao)性,各種(zhong)生(sheng)產機(ji)(ji)械在設(she)計配(pei)用(yong)動(dong)(dong)力(li)驅動(dong)(dong)時(shi),都留有(you)一(yi)定的(de)(de)富余量(liang)(liang)。當(dang)電機(ji)(ji)不能在滿負荷下運行時(shi),除達(da)到動(dong)(dong)力(li)驅動(dong)(dong)要(yao)求外,多余的(de)(de)力(li)矩(ju)增加(jia)了(le)有(you)功(gong)(gong)功(gong)(gong)率的(de)(de)消耗(hao),造成電能的(de)(de)浪費(fei)。風(feng)機(ji)(ji)、泵類等設(she)備(bei)傳(chuan)統(tong)的(de)(de)調速(su)方(fang)法是通(tong)過(guo)調節入口(kou)或出口(kou)的(de)(de)擋板(ban)、閥門開(kai)度(du)來調節給風(feng)量(liang)(liang)和給水(shui)量(liang)(liang),其輸入功(gong)(gong)率大(da),且(qie)大(da)量(liang)(liang)的(de)(de)能源消耗(hao)在擋板(ban)、閥門的(de)(de)截流過(guo)程中。
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意大利杰弗倫(lun)GEFRAN變(bian)(bian)頻器(qi) 在(zai)整流(liu)器(qi)整流(liu)后的(de)直(zhi)流(liu)電(dian)(dian)(dian)壓(ya)中(zhong),含(han)有電(dian)(dian)(dian)源(yuan)6倍頻率(lv)的(de)脈(mo)動電(dian)(dian)(dian)壓(ya),此外逆變(bian)(bian)器(qi)產生的(de)脈(mo)動電(dian)(dian)(dian)流(liu)也使直(zhi)流(liu)電(dian)(dian)(dian)壓(ya)變(bian)(bian)動。為了抑(yi)制電(dian)(dian)(dian)壓(ya)波動,采用電(dian)(dian)(dian)感和電(dian)(dian)(dian)容(rong)吸收(shou)脈(mo)動電(dian)(dian)(dian)壓(ya)(電(dian)(dian)(dian)流(liu))。裝置容(rong)量(liang)小時,如果電(dian)(dian)(dian)源(yuan)和主電(dian)(dian)(dian)路構成器(qi)件有余量(liang),可(ke)以省去(qu)電(dian)(dian)(dian)感采用簡單的(de)平波回(hui)路。同整流(liu)器(qi)相反,逆變(bian)(bian)器(qi)是將直(zhi)流(liu)功率(lv)變(bian)(bian)換為所要求頻率(lv)的(de)交(jiao)流(liu)功率(lv),以所確(que)定的(de)時間(jian)使6個開關(guan)器(qi)件導通、關(guan)斷就(jiu)可(ke)以得到3相交(jiao)流(liu)輸出(chu)。
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