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偉創變頻器AC80在電池生(sheng)產線上的應用

 ;      電(dian)池(chi)鋅板(ban)生產(chan)線中(zhong)(zhong)，從鑄造機(ji)中(zhong)(zhong)出(chu)(chu)來(lai)熱鋅板(ban)，軋(ya)(ya)制(zhi)(zhi)后，再進(jin)行(xing)(xing)收(shou)(shou)卷(juan)，其中(zhong)(zhong)收(shou)(shou)卷(juan)工位為(wei)2個(ge)， 以(yi)保證連(lian)續生產(chan)。通常(chang)情況下，軋(ya)(ya)機(ji)主速(su)度是(shi)跟隨(sui)鑄造速(su)度信號而變(bian)(bian)(bian)化，且可以(yi)同時進(jin)行(xing)(xing)比例(li)微(wei)調，收(shou)(shou)卷(juan)為(wei)1臺(tai)矢量變(bian)(bian)(bian)頻器(qi)控(kong)(kong)制(zhi)(zhi)2臺(tai)不同工位但電(dian)機(ji)參數一致的(de)異步(bu)變(bian)(bian)(bian)頻電(dian)機(ji)（卷(juan)徑變(bian)(bian)(bian)化大必須(xu)采(cai)用變(bian)(bian)(bian)頻專用電(dian)機(ji)）。如(ru)圖(tu)1所示(shi)，包括鑄造機(ji)變(bian)(bian)(bian)頻器(qi)AC80、軋(ya)(ya)機(ji)變(bian)(bian)(bian)頻器(qi)AC80、中(zhong)(zhong)心(xin)收(shou)(shou)卷(juan)變(bian)(bian)(bian)頻器(qi)AC90、可編程控(kong)(kong)制(zhi)(zhi)器(qi)PLC系統組成。AC90變(bian)(bian)(bian)頻器(qi)涉及到(dao)2臺(tai)異步(bu)電(dian)機(ji)切換(兩臺(tai)電(dian)機(ji)的(de)特(te)性盡可能(neng)的(de)一致)，AC90采(cai)用開(kai)環力矩(ju)收(shou)(shou)卷(juan)的(de)模式。該系統中(zhong)(zhong)，PLC工藝(yi)需要來(lai)輸(shu)出(chu)(chu)都是(shi)由(you)所有速(su)度給定，并同時從各個(ge)變(bian)(bian)(bian)頻器(qi)中(zhong)(zhong)讀取速(su)度、電(dian)流、轉矩(ju)等(deng)信號，以(yi)做控(kong)(kong)制(zhi)(zhi)或顯示(shi)用。PLC程序(xu)主要任務是(shi)：處(chu)理起停(ting)連(lian)鎖、故(gu)障報警(jing)、速(su)度控(kong)(kong)制(zhi)(zhi)以(yi)及顯示(shi)等(deng)。 

       整條生產線的(de)(de)(de)(de)(de)速(su)(su)度(du)由(you)PLC控(kong)(kong)(kong)制(zhi)(zhi)，兩個AC80傳動(dong)變頻(pin)器采用(yong)閉環（變頻(pin)器實時檢(jian)測電(dian)機的(de)(de)(de)(de)(de)實際轉速(su)(su)）控(kong)(kong)(kong)制(zhi)(zhi)，其中鑄造(zao)機速(su)(su)度(du)為主機速(su)(su)度(du)，從PLC設(she)定(ding)的(de)(de)(de)(de)(de)主速(su)(su)度(du)V獲(huo)得，變頻(pin)器同時對PG的(de)(de)(de)(de)(de)反饋信(xin)號進行運算，使得電(dian)機的(de)(de)(de)(de)(de)轉速(su)(su)更加的(de)(de)(de)(de)(de)穩(wen)定(ding)。軋機的(de)(de)(de)(de)(de)速(su)(su)度(du)按照鑄造(zao)電(dian)機的(de)(de)(de)(de)(de)速(su)(su)度(du)成比例(li)的(de)(de)(de)(de)(de)增(zeng)加或(huo)減少。交流變頻(pin)器中心收卷(juan)技(ji)術(shu)，現在已經非(fei)常成熟。此方(fang)案可適用(yong)于(yu)高精度(du)張(zhang)力(li)(li)(li)(li)收卷(juan)場合(he)，可以省去張(zhang)力(li)(li)(li)(li)傳感器、PID控(kong)(kong)(kong)制(zhi)(zhi)器，而只需要偉創AC90變頻(pin)器加PLC控(kong)(kong)(kong)制(zhi)(zhi)即(ji)可。AC90變頻(pin)器是一種可以實現恒張(zhang)力(li)(li)(li)(li)控(kong)(kong)(kong)制(zhi)(zhi)的(de)(de)(de)(de)(de)變頻(pin)器，可以通過(guo)變頻(pin)器內部的(de)(de)(de)(de)(de)計算，獲(huo)得材料的(de)(de)(de)(de)(de)卷(juan)徑，通過(guo)控(kong)(kong)(kong)制(zhi)(zhi)變頻(pin)器的(de)(de)(de)(de)(de)輸出轉矩來獲(huo)得恒張(zhang)力(li)(li)(li)(li)控(kong)(kong)(kong)制(zhi)(zhi)。AC90變頻(pin)器可以通過(guo)設(she)置系(xi)統(tong)慣(guan)量(liang)補(bu)償(chang)(chang)、摩擦補(bu)償(chang)(chang)及材料慣(guan)量(liang)補(bu)償(chang)(chang)可以補(bu)償(chang)(chang)由(you)于(yu)系(xi)統(tong)慣(guan)量(liang)、磨擦阻力(li)(li)(li)(li)及材料慣(guan)量(liang)引起(qi)的(de)(de)(de)(de)(de)起(qi)動(dong)或(huo)加速(su)(su)過(guo)程中速(su)(su)度(du)不均(jun)勻的(de)(de)(de)(de)(de)情況，獲(huo)得非(fei)常平穩(wen)的(de)(de)(de)(de)(de)張(zhang)力(li)(li)(li)(li)控(kong)(kong)(kong)制(zhi)(zhi)效果。方(fang)案簡易，調試簡單。

四、接線圖及參數設置