杭州枕式包裝機自動(dong)控制(zhi)系統的性能指標主要有穩(wen)定性、快速性、準確性。

1、穩定性

由于全自動包裝機自動控制系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)存在慣性，當(dang)系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)的(de)各個參數分配不(bu)當(dang)時，將(jiang)會引起(qi)系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)的(de)振蕩而失去工作(zuo)(zuo)能(neng)力。穩(wen)定(ding)(ding)性就是(shi)指(zhi)動態(tai)過(guo)程的(de)振蕩傾(qing)向和(he)系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)恢復平衡狀態(tai)的(de)能(neng)力。當(dang)擾動或(huo)給(gei)定(ding)(ding)值(zhi)發生變化時，輸(shu)出(chu)量(liang)將(jiang)會偏離原來的(de)穩(wen)定(ding)(ding)值(zhi)，依靠反饋作(zuo)(zuo)用，通過(guo)全自動包裝機自動控制系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)內部的(de)調節(jie)作(zuo)(zuo)用，系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)隨(sui)時間不(bu)斷(duan)收(shou)斂，并回到原來的(de)穩(wen)定(ding)(ding)值(zhi)或(huo)跟隨(sui)給(gei)定(ding)(ding)值(zhi)穩(wen)定(ding)(ding)下來。如果由于某(mou)種(zhong)原因，系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)出(chu)現(xian)發散而處于不(bu)穩(wen)定(ding)(ding)狀態(tai)，系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)無(wu)法工作(zuo)(zuo)。穩(wen)定(ding)(ding)性要(yao)求(qiu)是(shi)系(xi)(xi)(xi)(xi)統(tong)(tong)(tong)工作(zuo)(zuo)的(de)首要(yao)條件(jian)。 　　

2、快速性

由(you)于(yu)存在慣性或能源功率的限(xian)制(zhi)，全自動(dong)(dong)包裝機自動(dong)(dong)控(kong)制(zhi)系統(tong)(tong)中的各種量(liang)值的變(bian)化不(bu)可能突(tu)變(bian)，由(you)一(yi)(yi)個穩(wen)態過(guo)(guo)渡到新的穩(wen)態，都需要定時間，即需要經歷一(yi)(yi)個過(guo)(guo)渡過(guo)(guo)程。快(kuai)速性表示(shi)系統(tong)(tong)輸出量(liang)與給定值之間產生偏(pian)(pian)差時，系統(tong)(tong)消除(chu)偏(pian)(pian)差恢(hui)復穩(wen)態的快(kuai)速程度。 　　

3、準確性

準(zhun)確性(xing)(xing)也稱靜態精度，指(zhi)全自動(dong)包(bao)裝機自動(dong)控(kong)制系(xi)(xi)統(tong)在調(diao)整過(guo)程結束后輸出量(liang)與給定(ding)值之間(jian)的(de)(de)偏差，表(biao)明系(xi)(xi)統(tong)的(de)(de)準(zhun)確程度，也是(shi)衡量(liang)系(xi)(xi)統(tong)工作性(xing)(xing)能(neng)的(de)(de)重要(yao)(yao)指(zhi)標。由于受控(kong)對象的(de)(de)具(ju)體情(qing)況(kuang)不(bu)同(tong)，不(bu)同(tong)系(xi)(xi)統(tong)對穩(wen)、準(zhun)、快的(de)(de)要(yao)(yao)求(qiu)也各(ge)不(bu)相同(tong)。例如(ru)，隨動(dong)系(xi)(xi)統(tong)對快速性(xing)(xing)要(yao)(yao)求(qiu)很高，而(er)調(diao)速系(xi)(xi)統(tong)則對穩(wen)定(ding)性(xing)(xing)的(de)(de)要(yao)(yao)求(qiu)嚴(yan)格。同(tong)一系(xi)(xi)統(tong)性(xing)(xing)能(neng)在穩(wen)、準(zhun)、快之間(jian)是(shi)相互制約的(de)(de)，快速性(xing)(xing)能(neng)好(hao)的(de)(de)系(xi)(xi)統(tong)，有(you)可(ke)能(neng)易產生振蕩;穩(wen)定(ding)性(xing)(xing)好(hao)的(de)(de)系(xi)(xi)統(tong)，調(diao)整過(guo)程有(you)可(ke)能(neng)較慢，準(zhun)確性(xing)(xing)也可(ke)能(neng)變差。

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