高壓變頻(pin)(pin)器(qi)是把工頻(pin)(pin)電(dian)(dian)(dian)(dian)(dian)源(yuan)(50Hz或60Hz)變換成(cheng)各種頻(pin)(pin)率(lv)的(de)(de)(de)(de)交流(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)，以(yi)實現電(dian)(dian)(dian)(dian)(dian)機的(de)(de)(de)(de)變速運行(xing)的(de)(de)(de)(de)設備(bei)，其中控(kong)(kong)制電(dian)(dian)(dian)(dian)(dian)路(lu)完成(cheng)對主電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)(de)(de)控(kong)(kong)制，整(zheng)流(liu)電(dian)(dian)(dian)(dian)(dian)路(lu)將(jiang)交流(liu)電(dian)(dian)(dian)(dian)(dian)變換成(cheng)直(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)，直(zhi)流(liu)中間電(dian)(dian)(dian)(dian)(dian)路(lu)對整(zheng)流(liu)電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)(de)(de)輸出進行(xing)平滑濾波，逆(ni)變電(dian)(dian)(dian)(dian)(dian)路(lu)將(jiang)直(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)再逆(ni)成(cheng)交流(liu)電(dian)(dian)(dian)(dian)(dian)。對于如(ru)矢量控(kong)(kong)制高壓變頻(pin)(pin)器(qi)這種需要(yao)大量運算(suan)的(de)(de)(de)(de)高壓變頻(pin)(pin)器(qi)來(lai)說，APF有(you)源(yuan)濾波裝置(zhi)有(you)時還需要(yao)一個進行(xing)轉矩(ju)計(ji)算(suan)的(de)(de)(de)(de)CPU以(yi)及一些相應的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)路(lu)。變頻(pin)(pin)調(diao)速是通過改變電(dian)(dian)(dian)(dian)(dian)機定(ding)子繞組(zu)供(gong)電(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)頻(pin)(pin)率(lv)來(lai)達到調(diao)速的(de)(de)(de)(de)目的(de)(de)(de)(de)。

　　高壓變頻器的(de)作用

 　　一、高壓變頻器無故停機(ji)的(de)真正(zheng)原(yuan)因(yin)可(ke)調的(de)轉(zhuan)矩

　　通(tong)(tong)過(guo)變(bian)頻(pin)調速(su)后，能夠設置相應的轉矩 來保(bao)護機(ji)械不致(zhi)損(sun)壞，從而保(bao)證工藝過(guo)程(cheng)的連續(xu)性(xing)和產(chan)品的可(ke)靠性(xing)。目前的變(bian)頻(pin)技(ji)術使得不僅轉矩 可(ke)調，甚至轉矩的控(kong)制精(jing)度都能達到3%～5%左右。在工頻(pin)狀(zhuang)態下，電(dian)機(ji)只能通(tong)(tong)過(guo)檢測(ce)電(dian)流(liu)值或(huo)熱(re)保(bao)護來進行控(kong)制，而無法像(xiang)在變(bian)頻(pin)控(kong)制一樣設置 的轉矩值來動作。

　　三、受(shou)控的停止方式

　　如同可控的(de)加速(su)一樣(yang), 在變頻調速(su)中, 停(ting)止方式可以受控，并且有(you)(you)不(bu)同的(de)停(ting)止方式可以選擇(減速(su)停(ting)車，自(zi)由停(ting)車，APF有(you)(you)源濾波裝置(zhi)減速(su)停(ting)車+直流制動)，同樣(yang)它能減少(shao)對機械部件和電機的(de)沖(chong)擊，從而使整個系統(tong)更加可靠，壽命也(ye)會相應增加。

　　三、節能

　　高壓變頻(pin)器節能(neng)(neng)主要(yao)(yao)表現在(zai)風(feng)機(ji)(ji)(ji)(ji)，水泵的(de)(de)(de)(de)(de)應用上(shang)。為了保證生(sheng)產的(de)(de)(de)(de)(de)可靠性，各種(zhong)生(sheng)產機(ji)(ji)(ji)(ji)械在(zai)設計配用動(dong)力(li)驅動(dong)時(shi)(shi)，都留(liu)有(you) 的(de)(de)(de)(de)(de)富余量(liang)。當(dang)電(dian)機(ji)(ji)(ji)(ji)不能(neng)(neng)在(zai)滿負荷下運(yun)行時(shi)(shi)，除(chu)達(da)到動(dong)力(li)驅動(dong)要(yao)(yao)求外，多余的(de)(de)(de)(de)(de)力(li)矩增加了有(you)功功率的(de)(de)(de)(de)(de)消耗，APF有(you)源濾(lv)波裝置造成電(dian)能(neng)(neng)的(de)(de)(de)(de)(de)浪費。風(feng)機(ji)(ji)(ji)(ji)，泵類等設備傳統的(de)(de)(de)(de)(de)調速方(fang)法是通過調節入(ru)口(kou)或出(chu)口(kou)的(de)(de)(de)(de)(de)擋板(ban)，高壓變頻(pin)器無故停(ting)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)真正原因閥門開(kai)度來調節給風(feng)量(liang)和(he)給水量(liang)，其輸(shu)入(ru)功率大(da)，且大(da)量(liang)的(de)(de)(de)(de)(de)能(neng)(neng)源消耗在(zai)擋板(ban)，閥門的(de)(de)(de)(de)(de)截流(liu)過程(cheng)中。當(dang)使(shi)用變頻(pin)調速時(shi)(shi)，如果流(liu)量(liang)要(yao)(yao)求減小，通過降低泵或風(feng)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)(de)轉速即可滿足要(yao)(yao)求。

　　高壓變頻器的分類

　　高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)分(fen)(fen)(fen)(fen)類方法有(you)(you)多種，按(an)(an)照(zhao)主電(dian)路工作方式分(fen)(fen)(fen)(fen)類，可以(yi)分(fen)(fen)(fen)(fen)為(wei)(wei)電(dian)壓(ya)(ya)(ya)(ya)型(xing)高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)和電(dian)流型(xing)高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi);按(an)(an)照(zhao)開關方式分(fen)(fen)(fen)(fen)類，高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)-高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)維修-高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)維保-儲(chu)(chu)能系統-儲(chu)(chu)能雙向變(bian)(bian)(bian)流器(qi)(qi)(qi)(qi)(qi)(qi)PCS-維斯(si)克電(dian)氣(qi)(山東)有(you)(you)限公司可以(yi)分(fen)(fen)(fen)(fen)為(wei)(wei)PAM控制高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)，PWM控制高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)和高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)載頻(pin)(pin)(pin)PWM控制高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi);按(an)(an)照(zhao)工作原理(li)分(fen)(fen)(fen)(fen)類，可以(yi)分(fen)(fen)(fen)(fen)為(wei)(wei)V/f控制高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)，轉差頻(pin)(pin)(pin)率(lv)控制高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)和矢量控制高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)等;按(an)(an)照(zhao)用(yong)(yong)途分(fen)(fen)(fen)(fen)類，可以(yi)分(fen)(fen)(fen)(fen)為(wei)(wei)通用(yong)(yong)高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)，高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)性能 高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)，高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)頻(pin)(pin)(pin)高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)，單相高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)和三相高(gao)(gao)(gao)(gao)(gao)(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)變(bian)(bian)(bian)頻(pin)(pin)(pin)器(qi)(qi)(qi)(qi)(qi)(qi)等。

　　VVVF：改變(bian)(bian)(bian)電(dian)壓(ya)(ya)(ya)，改變(bian)(bian)(bian)頻率(lv)(lv) CVCF：恒電(dian)壓(ya)(ya)(ya)，恒頻率(lv)(lv)。各國使用的(de)(de)交(jiao)流(liu)供電(dian)電(dian)源，無論是用于家庭還是用于工廠(chang)，其電(dian)壓(ya)(ya)(ya)和(he)(he)頻率(lv)(lv)均為(wei)400V/50Hz或(huo)200V/60Hz(50Hz)，等等。通常，把電(dian)壓(ya)(ya)(ya)和(he)(he)頻率(lv)(lv)固定不(bu)變(bian)(bian)(bian)的(de)(de)交(jiao)流(liu)電(dian)變(bian)(bian)(bian)換(huan)為(wei)電(dian)壓(ya)(ya)(ya)或(huo)頻率(lv)(lv)可變(bian)(bian)(bian)的(de)(de)交(jiao)流(liu)電(dian)的(de)(de)裝置(zhi)稱作(zuo)“高壓(ya)(ya)(ya)變(bian)(bian)(bian)頻器”。為(wei)了產(chan)生可變(bian)(bian)(bian)的(de)(de)電(dian)壓(ya)(ya)(ya)和(he)(he)頻率(lv)(lv)，該設備(bei) 要把電(dian)源的(de)(de)交(jiao)流(liu)電(dian)變(bian)(bian)(bian)換(huan)為(wei)直(zhi)流(liu)電(dian)(DC)。

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