如何自行檢查變頻電源故障并嘗試修理
想要自行修補變頻(pin)電(dian)(dian)(dian)(dian)源。首先是對(dui)元(yuan)件的(de)知(zhi)道(dao)，各(ge)個元(yuan)件叫(jiao)什(shen)么？效(xiao)果(guo)(guo)是什(shen)么？性(xing)能(neng)怎樣？擔任什(shen)么用途？能(neng)在變頻(pin)電(dian)(dian)(dian)(dian)源機體(ti)里(li)指出各(ge)電(dian)(dian)(dian)(dian)路(lu)單元(yuan)的(de)效(xiao)果(guo)(guo)。方框。主回路(lu)包含哪(na)些(xie)？電(dian)(dian)(dian)(dian)解(jie)起(qi)什(shen)么效(xiao)果(guo)(guo)？充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)阻的(de)效(xiao)果(guo)(guo)，充(chong)電(dian)(dian)(dian)(dian)接(jie)觸(chu)器的(de)效(xiao)果(guo)(guo)，電(dian)(dian)(dian)(dian)容(rong)(rong)上的(de)并有(you)電(dian)(dian)(dian)(dian)阻的(de)效(xiao)果(guo)(guo)等等。上電(dian)(dian)(dian)(dian)后，由全(quan)波整流(liu)(liu)后，整流(liu)(liu)出直流(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)經充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)阻給電(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)容(rong)(rong)充(chong)電(dian)(dian)(dian)(dian)（由于電(dian)(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)(dian)容(rong)(rong)容(rong)(rong)量較(jiao)大，相當于短路(lu)）。當充(chong)電(dian)(dian)(dian)(dian)至80時，CPU宣布指令使充(chong)電(dian)(dian)(dian)(dian)接(jie)觸(chu)器吸合(he)！短路(lu)掉(diao)充(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)阻，使整機得到全(quan)功率(lv)純凈直流(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)！
變(bian)頻(pin)電(dian)(dian)(dian)源(yuan)是運用(yong)變(bian)頻(pin)技(ji)能與微電(dian)(dian)(dian)子技(ji)能，經過(guo)改動(dong)電(dian)(dian)(dian)機(ji)(ji)工作電(dian)(dian)(dian)源(yuan)頻(pin)率方法來操(cao)控(kong)溝通(tong)電(dian)(dian)(dian)動(dong)機(ji)(ji)的(de)(de)電(dian)(dian)(dian)力操(cao)控(kong)設(she)備。主(zhu)要由(you)(you)整流（溝通(tong)變(bian)直流）、濾波、逆變(bian)（直流變(bian)溝通(tong)）、制動(dong)單元(yuan)、驅(qu)動(dong)單元(yuan)、檢測單元(yuan)微處理單元(yuan)等(deng)組成(cheng)。電(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)容(rong)(rong)(rong)上并聯(lian)(lian)(lian)的(de)(de)電(dian)(dian)(dian)阻(zu)是為(wei)了給電(dian)(dian)(dian)容(rong)(rong)(rong)分流分壓，由(you)(you)于(yu)電(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)容(rong)(rong)(rong)做(zuo)不了很高的(de)(de)耐(nai)(nai)壓，最大(da)500V明顯耐(nai)(nai)壓不夠，所(suo)(suo)(suo)以只能用(yong)串聯(lian)(lian)(lian)法使電(dian)(dian)(dian)容(rong)(rong)(rong)耐(nai)(nai)壓提高！500V加500V等(deng)于(yu)1000V。又由(you)(you)于(yu)電(dian)(dian)(dian)容(rong)(rong)(rong)串聯(lian)(lian)(lian)后容(rong)(rong)(rong)量變(bian)小，所(suo)(suo)(suo)以也要并聯(lian)(lian)(lian)弱干電(dian)(dian)(dian)容(rong)(rong)(rong)，達到不影(ying)響耐(nai)(nai)壓和容(rong)(rong)(rong)量問題。由(you)(you)于(yu)電(dian)(dian)(dian)容(rong)(rong)(rong)不可能做(zuo)到共同(tong)(tong)的(de)(de)精準容(rong)(rong)(rong)量，串聯(lian)(lian)(lian)時每(mei)個電(dian)(dian)(dian)容(rong)(rong)(rong)的(de)(de)擔(dan)負就(jiu)不同(tong)(tong)，會影(ying)響電(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)容(rong)(rong)(rong)的(de)(de)運用(yong)壽(shou)命(ming)！所(suo)(suo)(suo)以要在每(mei)個電(dian)(dian)(dian)容(rong)(rong)(rong)上并聯(lian)(lian)(lian)一個電(dian)(dian)(dian)阻(zu)。由(you)(you)于(yu)電(dian)(dian)(dian)阻(zu)能夠做(zuo)到精準。這樣(yang)，就(jiu)使電(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)容(rong)(rong)(rong)的(de)(de)負荷均(jun)等(deng)了。
并聯的(de)(de)(de)電(dian)(dian)(dian)(dian)阻同時(shi)還能(neng)夠(gou)起到變(bian)頻(pin)電(dian)(dian)(dian)(dian)源(yuan)候(hou)機(ji)(ji)后，泄放(fang)掉電(dian)(dian)(dian)(dian)容(rong)內(nei)存在的(de)(de)(de)電(dian)(dian)(dian)(dian)荷的(de)(de)(de)效果。變(bian)頻(pin)電(dian)(dian)(dian)(dian)源(yuan)靠內(nei)部IGBT的(de)(de)(de)開斷(duan)來調整(zheng)(zheng)輸出電(dian)(dian)(dian)(dian)源(yuan)的(de)(de)(de)電(dian)(dian)(dian)(dian)壓和(he)頻(pin)率，依據電(dian)(dian)(dian)(dian)機(ji)(ji)的(de)(de)(de)實(shi)際需求來供(gong)給(gei)其所需求的(de)(de)(de)電(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)壓，進而(er)達到節能(neng)、調速的(de)(de)(de)目的(de)(de)(de)，別的(de)(de)(de)，變(bian)頻(pin)電(dian)(dian)(dian)(dian)源(yuan)還有(you)很多的(de)(de)(de)維(wei)護(hu)功用(yong)，如過(guo)流(liu)(liu)、過(guo)壓、過(guo)載維(wei)護(hu)等等。跟著工業(ye)自動化程度的(de)(de)(de)不(bu)斷(duan)提高(gao)，變(bian)頻(pin)電(dian)(dian)(dian)(dian)源(yuan)也得到了(le)十分(fen)廣泛(fan)的(de)(de)(de)運(yun)(yun)用(yong)。變(bian)頻(pin)電(dian)(dian)(dian)(dian)源(yuan)是運(yun)(yun)用(yong)變(bian)頻(pin)技(ji)能(neng)與微電(dian)(dian)(dian)(dian)子技(ji)能(neng)，經過(guo)改(gai)動電(dian)(dian)(dian)(dian)機(ji)(ji)工作電(dian)(dian)(dian)(dian)源(yuan)頻(pin)率方(fang)法來操控溝通電(dian)(dian)(dian)(dian)動機(ji)(ji)的(de)(de)(de)電(dian)(dian)(dian)(dian)力操控設(she)備。主(zhu)要由整(zheng)(zheng)流(liu)(liu)（溝通變(bian)直流(liu)(liu)）、濾波、逆(ni)變(bian)（直流(liu)(liu)變(bian)溝通）、制(zhi)動單(dan)元(yuan)(yuan)、驅動單(dan)元(yuan)(yuan)、檢測(ce)單(dan)元(yuan)(yuan)微處理單(dan)元(yuan)(yuan)等組成(cheng)。這(zhe)個直流(liu)(liu)電(dian)(dian)(dian)(dian)給(gei)整(zheng)(zheng)機(ji)(ji)供(gong)電(dian)(dian)(dian)(dian)，再給(gei)IGBT供(gong)電(dian)(dian)(dian)(dian)。由CPU統制(zhi)六(liu)路驅動信號，使IGBT有(you)序(xu)的(de)(de)(de)導通和(he)截止(zhi)。輸出需求的(de)(de)(de)380V可調的(de)(de)(de)電(dian)(dian)(dian)(dian)壓供(gong)給(gei)電(dian)(dian)(dian)(dian)機(ji)(ji)運(yun)(yun)用(yong)。
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