瀏覽次數：
帶(dai)(dai)式輸(shu)(shu)送(song)機作為煤礦(kuang)生產和運(yun)輸(shu)(shu)的(de)主(zhu)要設(she)備，正(zheng)朝著大(da)容(rong)量、長距離(li)、高(gao)(gao)帶(dai)(dai)速、節(jie)能(neng)(neng)的(de)方向發(fa)展。通(tong)常(chang)長距離(li)帶(dai)(dai)式輸(shu)(shu)送(song)機需要多臺大(da)功率電機同時驅動，但在(zai)選擇電機時，應考(kao)慮25%-40%的(de)富(fu)裕系數。同時，由于(yu)工作面開挖不均勻，輸(shu)(shu)送(song)機的(de)載荷不均勻，因(yin)此在(zai)實際運(yun)行(xing)過程中處于(yu)滿載、輕載和空載三種不同的(de)狀態。培養基。如果(guo)輸(shu)(shu)送(song)帶(dai)(dai)的(de)速度與(yu)運(yun)量不匹(pi)配(pei)，就會造(zao)成能(neng)(neng)源浪費。如何降(jiang)低運(yun)輸(shu)(shu)機運(yun)行(xing)中的(de)能(neng)(neng)耗和運(yun)輸(shu)(shu)成本，對提高(gao)(gao)煤炭(tan)企業的(de)經濟效益具有重要的(de)作用(yong)。
長距離帶式(shi)輸送(song)(song)機(ji)(ji)由多臺交(jiao)流變頻電(dian)(dian)(dian)機(ji)(ji)驅動(dong)。在(zai)各種(zhong)因素的(de)(de)(de)影響(xiang)下，電(dian)(dian)(dian)機(ji)(ji)會出現功率不(bu)平衡(heng)，導致(zhi)電(dian)(dian)(dian)機(ji)(ji)負荷分布不(bu)均，嚴重時(shi)可(ke)能燒壞電(dian)(dian)(dian)機(ji)(ji)。因此，應(ying)采取(qu)一些措施來控制輸送(song)(song)機(ji)(ji)的(de)(de)(de)功率平衡(heng)。運(yun)動(dong)平衡(heng)受(shou)靜態和動(dong)態因素的(de)(de)(de)影響(xiang)。靜態因素取(qu)決于輸送(song)(song)機(ji)(ji)的(de)(de)(de)原始設(she)計參數。良好的(de)(de)(de)設(she)計可(ke)以使(shi)靜態功率平衡(heng)達到良好的(de)(de)(de)效(xiao)果(guo)。動(dong)態因素，即輸送(song)(song)機(ji)(ji)運(yun)行過程中的(de)(de)(de)瞬(shun)時(shi)不(bu)平衡(heng)狀態，能及時(shi)對(dui)動(dong)態功率不(bu)平衡(heng)現象作出響(xiang)應(ying)。取(qu)得了良好的(de)(de)(de)效(xiao)果(guo)。
在實(shi)(shi)(shi)際(ji)(ji)生產中，在確定了(le)輸送(song)機(ji)的(de)(de)(de)(de)(de)靜態參(can)數(shu)后(hou)，可(ke)以根據(ju)供電(dian)(dian)(dian)(dian)頻率來調整電(dian)(dian)(dian)(dian)機(ji)的(de)(de)(de)(de)(de)功(gong)率平(ping)(ping)衡(heng)(heng)。傳統(tong)(tong)(tong)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)機(ji)功(gong)率平(ping)(ping)衡(heng)(heng)控制(zhi)有兩種策略：并(bing)聯控制(zhi)和主(zhu)(zhu)從控制(zhi)。并(bing)聯控制(zhi)是為多臺電(dian)(dian)(dian)(dian)動機(ji)設置統(tong)(tong)(tong)一的(de)(de)(de)(de)(de)參(can)數(shu)。所有電(dian)(dian)(dian)(dian)機(ji)均按設定參(can)數(shu)運(yun)(yun)行。主(zhu)(zhu)從控制(zhi)是設置主(zhu)(zhu)機(ji)的(de)(de)(de)(de)(de)參(can)數(shu)，從機(ji)可(ke)以跟蹤主(zhu)(zhu)機(ji)的(de)(de)(de)(de)(de)輸出，實(shi)(shi)(shi)現同(tong)(tong)步運(yun)(yun)行。并(bing)行控制(zhi)具有抗干擾能力差(cha)的(de)(de)(de)(de)(de)缺(que)點(dian)，而主(zhu)(zhu)從控制(zhi)具有同(tong)(tong)步性差(cha)的(de)(de)(de)(de)(de)缺(que)點(dian)。基(ji)于耦(ou)合補償的(de)(de)(de)(de)(de)功(gong)率平(ping)(ping)衡(heng)(heng)法，通(tong)過采集各電(dian)(dian)(dian)(dian)機(ji)運(yun)(yun)行參(can)數(shu)的(de)(de)(de)(de)(de)變化(hua)值(zhi)，分析其運(yun)(yun)行參(can)數(shu)的(de)(de)(de)(de)(de)差(cha)異，并(bing)進行相應(ying)的(de)(de)(de)(de)(de)補償。該(gai)方(fang)法還考慮(lv)了(le)單電(dian)(dian)(dian)(dian)機(ji)驅動系(xi)統(tong)(tong)(tong)給定轉速與實(shi)(shi)(shi)際(ji)(ji)轉速之間的(de)(de)(de)(de)(de)誤(wu)差(cha)以及不同(tong)(tong)電(dian)(dian)(dian)(dian)機(ji)之間的(de)(de)(de)(de)(de)同(tong)(tong)步誤(wu)差(cha)。只(zhi)要操作系(xi)統(tong)(tong)(tong)中的(de)(de)(de)(de)(de)任何電(dian)(dian)(dian)(dian)機(ji)發生變化(hua)，都會反饋(kui)給整個系(xi)統(tong)(tong)(tong)。
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