控(kong)制應用內置(zhi)有PID調節器，配(pei)合頻率(lv)給(gei)定(ding)通道的選擇，用戶可方便地實現(xian)(xian)過程控(kong)制的自動調節，實現(xian)(xian)例如恒(heng)溫、恒(heng)壓、張力等更高的安(an)全(quan)及認證CE、UL、CUL、ROHS滿足用戶的設備出口認證要求

多(duo)電(dian)網(wang)需(xu)(xu)求(qiu)滿(man)足包括歐洲，北美，印度(du)等在(zai)內的380~480V三相(xiang)電(dian)網(wang)需(xu)(xu)求(qiu)多(duo)功(gong)(gong)(gong)能內置(zhi)H級絕(jue)緣(yuan)等級直流電(dian)抗器、完善(shan)的直流制動(dong)回路方案，支持(chi)飛(fei)車(che)啟動(dong)、智能節能功(gong)(gong)(gong)能、多(duo)點電(dian)壓(ya)磁通設置(zhi)功(gong)(gong)(gong)能、配備PID控制功(gong)(gong)(gong)能，無需(xu)(xu)溫度(du)調節器，即可(ke)實現溫度(du)、壓(ya)力、流量控制運轉常州(zhou)市笑天(tian)自動(dong)化科(ke)技(ji)有限公司主營(ying)匯川變頻器MD290，若有需(xu)(xu)要，歡迎來電(dian)咨(zi)詢(xun)。福建匯川變頻器代理商

直(zhi)(zhi)接轉(zhuan)矩控(kong)制(DTC)方(fang)式1985年，德國魯爾大學的(de)(de)DePenbrock教授提出了(le)直(zhi)(zhi)接轉(zhuan)矩控(kong)制變頻技術(shu)。該技術(shu)在(zai)(zai)(zai)很大程度上(shang)解決了(le)上(shang)述矢(shi)量控(kong)制的(de)(de)不(bu)(bu)足，并以新穎的(de)(de)控(kong)制思想、簡潔明了(le)的(de)(de)系統(tong)結(jie)構、優良的(de)(de)動(dong)(dong)靜態性能(neng)得到了(le)迅速發展。該技術(shu)已成功地應用在(zai)(zai)(zai)電(dian)(dian)力機(ji)車牽(qian)引(yin)的(de)(de)大功率交(jiao)流(liu)(liu)傳動(dong)(dong)上(shang)。 直(zhi)(zhi)接轉(zhuan)矩控(kong)制直(zhi)(zhi)接在(zai)(zai)(zai)定子坐標系下分(fen)析交(jiao)流(liu)(liu)電(dian)(dian)動(dong)(dong)機(ji)的(de)(de)數(shu)學模型，控(kong)制電(dian)(dian)動(dong)(dong)機(ji)的(de)(de)磁鏈和轉(zhuan)矩。它不(bu)(bu)需(xu)要(yao)(yao)(yao)將交(jiao)流(liu)(liu)電(dian)(dian)動(dong)(dong)機(ji)等效為直(zhi)(zhi)流(liu)(liu)電(dian)(dian)動(dong)(dong)機(ji)，因而省去(qu)了(le)矢(shi)量旋(xuan)轉(zhuan)變換中的(de)(de)許(xu)多復雜計(ji)算；它不(bu)(bu)需(xu)要(yao)(yao)(yao)模仿直(zhi)(zhi)流(liu)(liu)電(dian)(dian)動(dong)(dong)機(ji)的(de)(de)控(kong)制，也不(bu)(bu)需(xu)要(yao)(yao)(yao)為解耦而簡化交(jiao)流(liu)(liu)電(dian)(dian)動(dong)(dong)機(ji)的(de)(de)數(shu)學模型。江蘇匯川單(dan)傳變頻器(qi)維修常(chang)州市笑天自動(dong)(dong)化科技有(you)限公(gong)司(si)主(zhu)營匯川起重變頻器(qi)，若有(you)需(xu)要(yao)(yao)(yao)，歡迎(ying)來電(dian)(dian)咨詢。

VVVF變(bian)頻(pin)、矢量控(kong)制變(bian)頻(pin)、直(zhi)(zhi)接轉矩控(kong)制變(bian)頻(pin)都(dou)是(shi)(shi)交(jiao)(jiao)—直(zhi)(zhi)—交(jiao)(jiao)變(bian)頻(pin)中(zhong)的一種。其(qi)共同缺點是(shi)(shi)輸入功率(lv)因數低(di)，諧波(bo)電(dian)(dian)(dian)流大，直(zhi)(zhi)流電(dian)(dian)(dian)路(lu)需要(yao)大的儲能(neng)電(dian)(dian)(dian)容，再生能(neng)量又不能(neng)反饋回電(dian)(dian)(dian)網，即不能(neng)進行(xing)四(si)象限(xian)運(yun)(yun)行(xing)。為(wei)(wei)此，矩陣(zhen)式交(jiao)(jiao)—交(jiao)(jiao)變(bian)頻(pin)應運(yun)(yun)而生。由于矩陣(zhen)式交(jiao)(jiao)—交(jiao)(jiao)變(bian)頻(pin)省去(qu)了(le)中(zhong)間(jian)直(zhi)(zhi)流環(huan)節，從而省去(qu)了(le)體積大、價格貴的電(dian)(dian)(dian)解(jie)電(dian)(dian)(dian)容。它能(neng)實現(xian)功率(lv)因數為(wei)(wei)l，輸入電(dian)(dian)(dian)流為(wei)(wei)正弦且能(neng)四(si)象限(xian)運(yun)(yun)行(xing)，系(xi)統的功率(lv)密度大。該(gai)技術雖尚未成熟，但仍吸(xi)引著眾多的學者深入研究(jiu)。其(qi)實質(zhi)不是(shi)(shi)間(jian)接的控(kong)制電(dian)(dian)(dian)流、磁鏈等(deng)量，而是(shi)(shi)把轉矩直(zhi)(zhi)接作為(wei)(wei)被控(kong)制量來實現(xian)的。具體方(fang)法(fa)是(shi)(shi)：

1、控(kong)制(zhi)定子(zi)磁鏈引入定子(zi)磁鏈觀測器，實現無速(su)度傳感器方式；

2、自動識(shi)別(ID)依靠精確的電機(ji)數學模型，對電機(ji)參數自動識(shi)別；

3、算(suan)出(chu)實(shi)(shi)際(ji)值對應定子(zi)阻抗、互感、磁飽和因(yin)素、慣量等算(suan)出(chu)實(shi)(shi)際(ji)的轉(zhuan)矩、定子(zi)磁鏈(lian)、轉(zhuan)子(zi)速(su)(su)度進(jin)行(xing)實(shi)(shi)時(shi)控(kong)(kong)制(zhi)； 4、實(shi)(shi)現Band—Band控(kong)(kong)制(zhi)按磁鏈(lian)和轉(zhuan)矩的Band—Band控(kong)(kong)制(zhi)產(chan)生PWM信號，對逆(ni)變(bian)器(qi)開關狀態進(jin)行(xing)控(kong)(kong)制(zhi)。 矩陣式交—交變(bian)頻具(ju)(ju)有(you)快速(su)(su)的轉(zhuan)矩響(xiang)應(<2ms)，很高的速(su)(su)度精度(±2%，無PG反饋)，高轉(zhuan)矩精度(<+3%)；同時(shi)還具(ju)(ju)有(you)較高的起動轉(zhuan)矩及高轉(zhuan)矩精度，尤(you)其在低速(su)(su)時(shi)(包括(kuo)0速(su)(su)度時(shi))，可輸出(chu)150%～200%轉(zhuan)矩。

變(bian)(bian)(bian)頻節(jie)能(neng)(neng)變(bian)(bian)(bian)頻器節(jie)能(neng)(neng)主要(yao)(yao)表(biao)現(xian)在風機(ji)(ji)(ji)、水(shui)泵(beng)的(de)(de)應用(yong)(yong)上。風機(ji)(ji)(ji)、泵(beng)類(lei)(lei)(lei)負載采用(yong)(yong)變(bian)(bian)(bian)頻調(diao)(diao)(diao)速(su)(su)(su)后(hou)，節(jie)電(dian)(dian)(dian)率(lv)為20%～60%，這是因為風機(ji)(ji)(ji)、泵(beng)類(lei)(lei)(lei)負載的(de)(de)實(shi)際消耗功率(lv)基(ji)(ji)本與轉(zhuan)(zhuan)速(su)(su)(su)的(de)(de)三次(ci)方成比(bi)例。當用(yong)(yong)戶(hu)需要(yao)(yao)的(de)(de)平均流量較小時，風機(ji)(ji)(ji)、泵(beng)類(lei)(lei)(lei)采用(yong)(yong)變(bian)(bian)(bian)頻調(diao)(diao)(diao)速(su)(su)(su)使其轉(zhuan)(zhuan)速(su)(su)(su)降低(di)，節(jie)能(neng)(neng)效果(guo)非(fei)常(chang)明顯。而(er)傳統的(de)(de)風機(ji)(ji)(ji)、泵(beng)類(lei)(lei)(lei)采用(yong)(yong)擋板和(he)閥門進行流量調(diao)(diao)(diao)節(jie)，電(dian)(dian)(dian)動機(ji)(ji)(ji)轉(zhuan)(zhuan)速(su)(su)(su)基(ji)(ji)本不變(bian)(bian)(bian)，耗電(dian)(dian)(dian)功率(lv)變(bian)(bian)(bian)化(hua)不大。據統計，風機(ji)(ji)(ji)、泵(beng)類(lei)(lei)(lei)電(dian)(dian)(dian)動機(ji)(ji)(ji)用(yong)(yong)電(dian)(dian)(dian)量占全(quan)國用(yong)(yong)電(dian)(dian)(dian)量的(de)(de)31%，占工(gong)業用(yong)(yong)電(dian)(dian)(dian)量的(de)(de)50%。在此類(lei)(lei)(lei)負載上使用(yong)(yong)變(bian)(bian)(bian)頻調(diao)(diao)(diao)速(su)(su)(su)裝置(zhi)具有(you)非(fei)常(chang)重要(yao)(yao)的(de)(de)意義(yi)。目前，應用(yong)(yong)較成功的(de)(de)有(you)恒壓供水(shui)、各(ge)類(lei)(lei)(lei)風機(ji)(ji)(ji)、中(zhong)央空(kong)調(diao)(diao)(diao)和(he)液壓泵(beng)的(de)(de)變(bian)(bian)(bian)頻調(diao)(diao)(diao)速(su)(su)(su)。常(chang)州市笑天自動化(hua)科技有(you)限公司(si)主營匯(hui)川(chuan)緊湊(cou)多功能(neng)(neng)變(bian)(bian)(bian)頻器，若有(you)需要(yao)(yao)，歡迎來電(dian)(dian)(dian)咨詢。

實(shi)現電(dian)(dian)機軟啟(qi)動(dong)電(dian)(dian)機硬(ying)啟(qi)動(dong)不僅會(hui)對電(dian)(dian)網造(zao)成嚴重的(de)(de)(de)(de)沖擊，而且會(hui)對電(dian)(dian)網容量要(yao)(yao)求過(guo)高，啟(qi)動(dong)時產生的(de)(de)(de)(de)大電(dian)(dian)流(liu)和(he)(he)震動(dong)對擋板和(he)(he)閥門的(de)(de)(de)(de)損害極大，對設(she)備(bei)、管路(lu)的(de)(de)(de)(de)使(shi)(shi)用(yong)壽(shou)命極為不利。而使(shi)(shi)用(yong)變(bian)(bian)頻器后，變(bian)(bian)頻器的(de)(de)(de)(de)軟啟(qi)動(dong)功(gong)能將(jiang)使(shi)(shi)啟(qi)動(dong)電(dian)(dian)流(liu)從(cong)零開始變(bian)(bian)化(hua)，最(zui)大值也(ye)不超(chao)過(guo)額定電(dian)(dian)流(liu)，減輕(qing)了對電(dian)(dian)網的(de)(de)(de)(de)沖擊和(he)(he)對供電(dian)(dian)容量的(de)(de)(de)(de)要(yao)(yao)求，延長了設(she)備(bei)和(he)(he)閥門的(de)(de)(de)(de)使(shi)(shi)用(yong)壽(shou)命，同時也(ye)節省設(she)備(bei)的(de)(de)(de)(de)維護費用(yong)。

匯川(chuan)(chuan)變頻器已廣泛應用于(yu)冶金、起重、石油(you)、化(hua)(hua)工(gong)、機床、電(dian)動汽車(che)、金屬加工(gong)、建材、石材、木材加工(gong)、陶瓷、塑(su)膠、空(kong)壓機、洗衣機、供水、空(kong)調(diao)、市政工(gong)程、紡(fang)織、印(yin)刷、礦(kuang)山等行業。常州(zhou)市笑天自動化(hua)(hua)科(ke)技有限公司主營匯川(chuan)(chuan)靈巧矢量變頻器，若有需要，歡迎(ying)來電(dian)咨(zi)詢。山東匯川(chuan)(chuan)MD500變頻器說明書

常州市(shi)笑天自動化科技(ji)有限(xian)公司主營匯(hui)川MD310變頻器，若有需要，歡迎來電。福建匯(hui)川變頻器代理(li)商

平波(bo)(bo)回路在整(zheng)流(liu)(liu)(liu)器(qi)(qi)整(zheng)流(liu)(liu)(liu)后的(de)直流(liu)(liu)(liu)電(dian)(dian)壓(ya)(ya)中，含有電(dian)(dian)源6倍(bei)頻率的(de)脈動(dong)電(dian)(dian)壓(ya)(ya)，此外逆變器(qi)(qi)產生(sheng)的(de)脈動(dong)電(dian)(dian)流(liu)(liu)(liu)也使(shi)直流(liu)(liu)(liu)電(dian)(dian)壓(ya)(ya)變動(dong)。為了抑(yi)制電(dian)(dian)壓(ya)(ya)波(bo)(bo)動(dong)，采用電(dian)(dian)感和電(dian)(dian)容吸收脈動(dong)電(dian)(dian)壓(ya)(ya)（電(dian)(dian)流(liu)(liu)(liu)）。裝置容量(liang)小時，如(ru)果(guo)電(dian)(dian)源和主(zhu)電(dian)(dian)路構成器(qi)(qi)件有余量(liang)，可以省去電(dian)(dian)感采用簡(jian)單的(de)平波(bo)(bo)回路。

逆變(bian)器(qi)(qi)同整流器(qi)(qi)相反，逆變(bian)器(qi)(qi)是將直(zhi)流功率變(bian)換(huan)為所(suo)要求頻(pin)率的(de)(de)(de)交(jiao)流功率，以所(suo)確定(ding)的(de)(de)(de)時(shi)間使6個開關(guan)器(qi)(qi)件導通、關(guan)斷就可(ke)以得到3相交(jiao)流輸(shu)出(chu)。以電(dian)(dian)(dian)(dian)(dian)壓型pwm逆變(bian)器(qi)(qi)為例示出(chu)開關(guan)時(shi)間和(he)電(dian)(dian)(dian)(dian)(dian)壓波形。 控(kong)(kong)制電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)是給異(yi)步(bu)電(dian)(dian)(dian)(dian)(dian)動機(ji)供(gong)電(dian)(dian)(dian)(dian)(dian)（電(dian)(dian)(dian)(dian)(dian)壓、頻(pin)率可(ke)調(diao)）的(de)(de)(de)主電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)提供(gong)控(kong)(kong)制信號(hao)的(de)(de)(de)回(hui)路(lu)(lu)(lu)(lu)(lu)，它有頻(pin)率、電(dian)(dian)(dian)(dian)(dian)壓的(de)(de)(de)“運算電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)”，主電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)的(de)(de)(de)“電(dian)(dian)(dian)(dian)(dian)壓、電(dian)(dian)(dian)(dian)(dian)流檢測(ce)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)”，電(dian)(dian)(dian)(dian)(dian)動機(ji)的(de)(de)(de)“速度檢測(ce)電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)”，將運算電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)的(de)(de)(de)控(kong)(kong)制信號(hao)進行(xing)放大的(de)(de)(de)“驅(qu)動電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)”，以及逆變(bian)器(qi)(qi)和(he)電(dian)(dian)(dian)(dian)(dian)動機(ji)的(de)(de)(de)“保護電(dian)(dian)(dian)(dian)(dian)路(lu)(lu)(lu)(lu)(lu)”組成。福建匯川變(bian)頻(pin)器(qi)(qi)代理(li)商

常州(zhou)(zhou)市(shi)(shi)笑(xiao)天自(zi)動(dong)化科技有(you)限(xian)公(gong)司在同行(xing)業領域中，一(yi)直(zhi)處在一(yi)個不(bu)斷銳意進(jin)(jin)取(qu)，不(bu)斷制(zhi)造(zao)創新(xin)(xin)的(de)(de)(de)市(shi)(shi)場(chang)(chang)高度，多年(nian)以來(lai)致力(li)于(yu)發展富(fu)有(you)創新(xin)(xin)價(jia)值(zhi)理念的(de)(de)(de)產(chan)品標準，在江蘇省等地區的(de)(de)(de)機(ji)械及(ji)行(xing)業設(she)備(bei)中始終保持良好的(de)(de)(de)商業口碑，成績(ji)讓(rang)(rang)我(wo)們(men)(men)(men)喜悅，但不(bu)會讓(rang)(rang)我(wo)們(men)(men)(men)止步，殘酷(ku)的(de)(de)(de)市(shi)(shi)場(chang)(chang)磨煉了我(wo)們(men)(men)(men)堅強(qiang)不(bu)屈的(de)(de)(de)意志，和諧(xie)溫馨的(de)(de)(de)工作環境，富(fu)有(you)營(ying)養的(de)(de)(de)公(gong)司土壤滋養著我(wo)們(men)(men)(men)不(bu)斷開拓創新(xin)(xin)，勇于(yu)進(jin)(jin)取(qu)的(de)(de)(de)無限(xian)潛力(li)，常州(zhou)(zhou)市(shi)(shi)笑(xiao)天自(zi)動(dong)化科技供應攜手大家(jia)一(yi)起走向共同輝煌的(de)(de)(de)未來(lai)，回首(shou)過去(qu)，我(wo)們(men)(men)(men)不(bu)會因為(wei)取(qu)得了一(yi)點點成績(ji)而沾(zhan)沾(zhan)自(zi)喜，相反(fan)的(de)(de)(de)是面對(dui)競爭越(yue)來(lai)越(yue)激(ji)烈的(de)(de)(de)市(shi)(shi)場(chang)(chang)氛圍(wei)，我(wo)們(men)(men)(men)更(geng)要(yao)明確自(zi)己的(de)(de)(de)不(bu)足，做好迎接(jie)新(xin)(xin)挑戰的(de)(de)(de)準備(bei)，要(yao)不(bu)畏困難，激(ji)流勇進(jin)(jin)，以一(yi)個更(geng)嶄新(xin)(xin)的(de)(de)(de)精(jing)神面貌迎接(jie)大家(jia)，共同走向輝煌回來(lai)！

本文來自沈陽喜納多采暖工程有限公司：//zjlong.cn/Article/01a399609.html