控制(zhi)應用(yong)內(nei)置有PID調(diao)節器，配合頻率給定(ding)通道(dao)的選擇，用(yong)戶可方便地實現(xian)(xian)過程控制(zhi)的自(zi)動調(diao)節，實現(xian)(xian)例(li)如恒溫、恒壓、張力(li)等更高的安全及(ji)認證(zheng)CE、UL、CUL、ROHS滿(man)足(zu)用(yong)戶的設備(bei)出口(kou)認證(zheng)要求

多(duo)電(dian)(dian)(dian)網需(xu)(xu)求滿(man)足包括歐洲，北美，印度(du)(du)等(deng)(deng)在內的380~480V三相(xiang)電(dian)(dian)(dian)網需(xu)(xu)求多(duo)功(gong)能內置(zhi)H級絕(jue)緣等(deng)(deng)級直(zhi)流電(dian)(dian)(dian)抗器、完善的直(zhi)流制(zhi)動(dong)回路方案，支持飛車啟(qi)動(dong)、智能節(jie)能功(gong)能、多(duo)點(dian)電(dian)(dian)(dian)壓磁通設(she)置(zhi)功(gong)能、配(pei)備PID控制(zhi)功(gong)能，無需(xu)(xu)溫度(du)(du)調(diao)節(jie)器，即可實現溫度(du)(du)、壓力、流量控制(zhi)運轉常州市(shi)笑天(tian)自動(dong)化科(ke)技有(you)限公司(si)主營匯川(chuan)變(bian)頻(pin)器MD290，若有(you)需(xu)(xu)要，歡迎來電(dian)(dian)(dian)咨詢。福建匯川(chuan)變(bian)頻(pin)器代理商

直接(jie)轉(zhuan)矩控(kong)(kong)(kong)制(zhi)(DTC)方式1985年，德國魯(lu)爾大學的(de)(de)(de)(de)(de)DePenbrock教授(shou)提出(chu)了(le)直接(jie)轉(zhuan)矩控(kong)(kong)(kong)制(zhi)變(bian)(bian)頻(pin)(pin)技術。該(gai)技術在很大程(cheng)度上(shang)解決了(le)上(shang)述矢量控(kong)(kong)(kong)制(zhi)的(de)(de)(de)(de)(de)不(bu)足，并以新穎的(de)(de)(de)(de)(de)控(kong)(kong)(kong)制(zhi)思(si)想、簡潔明了(le)的(de)(de)(de)(de)(de)系(xi)統結構、優(you)良的(de)(de)(de)(de)(de)動(dong)(dong)(dong)(dong)靜態(tai)性能(neng)得到了(le)迅速(su)發展。該(gai)技術已成功地應用在電(dian)(dian)(dian)力機(ji)(ji)車牽引(yin)的(de)(de)(de)(de)(de)大功率交流(liu)傳動(dong)(dong)(dong)(dong)上(shang)。 直接(jie)轉(zhuan)矩控(kong)(kong)(kong)制(zhi)直接(jie)在定子(zi)坐(zuo)標(biao)系(xi)下分(fen)析(xi)交流(liu)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)的(de)(de)(de)(de)(de)數學模(mo)型(xing)，控(kong)(kong)(kong)制(zhi)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)的(de)(de)(de)(de)(de)磁鏈(lian)和轉(zhuan)矩。它(ta)不(bu)需要(yao)將交流(liu)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)等效為(wei)直流(liu)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)，因而省去了(le)矢量旋轉(zhuan)變(bian)(bian)換中的(de)(de)(de)(de)(de)許多復雜(za)計算；它(ta)不(bu)需要(yao)模(mo)仿(fang)直流(liu)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)的(de)(de)(de)(de)(de)控(kong)(kong)(kong)制(zhi)，也不(bu)需要(yao)為(wei)解耦而簡化交流(liu)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機(ji)(ji)的(de)(de)(de)(de)(de)數學模(mo)型(xing)。江蘇匯(hui)川單(dan)傳變(bian)(bian)頻(pin)(pin)器(qi)(qi)維修常州市(shi)笑(xiao)天自動(dong)(dong)(dong)(dong)化科技有限公(gong)司主(zhu)營匯(hui)川起(qi)重(zhong)變(bian)(bian)頻(pin)(pin)器(qi)(qi)，若(ruo)有需要(yao)，歡迎來電(dian)(dian)(dian)咨詢(xun)。

VVVF變頻(pin)、矢量(liang)控制(zhi)變頻(pin)、直(zhi)接(jie)轉(zhuan)矩(ju)(ju)控制(zhi)變頻(pin)都是(shi)交—直(zhi)—交變頻(pin)中的(de)(de)一種。其共同缺點(dian)是(shi)輸入功率因數(shu)低，諧波電流(liu)大(da)，直(zhi)流(liu)電路需要大(da)的(de)(de)儲能(neng)電容，再(zai)生能(neng)量(liang)又不(bu)能(neng)反饋(kui)回電網，即(ji)不(bu)能(neng)進行四象限(xian)運行。為(wei)(wei)此，矩(ju)(ju)陣式(shi)交—交變頻(pin)應運而生。由(you)于(yu)矩(ju)(ju)陣式(shi)交—交變頻(pin)省去了中間直(zhi)流(liu)環節，從而省去了體積(ji)大(da)、價格貴(gui)的(de)(de)電解電容。它能(neng)實(shi)現功率因數(shu)為(wei)(wei)l，輸入電流(liu)為(wei)(wei)正弦(xian)且能(neng)四象限(xian)運行，系統的(de)(de)功率密度大(da)。該技術雖尚未成(cheng)熟，但仍吸引著眾多的(de)(de)學者深(shen)入研究。其實(shi)質不(bu)是(shi)間接(jie)的(de)(de)控制(zhi)電流(liu)、磁鏈等(deng)量(liang)，而是(shi)把轉(zhuan)矩(ju)(ju)直(zhi)接(jie)作(zuo)為(wei)(wei)被控制(zhi)量(liang)來實(shi)現的(de)(de)。具體方(fang)法是(shi)：

1、控制定(ding)子磁鏈引入定(ding)子磁鏈觀(guan)測器，實現無速度傳感器方式(shi)；

2、自動識別(bie)(ID)依靠精(jing)確的電機數學模(mo)型，對電機參數自動識別(bie)；

3、算(suan)出實(shi)際值對應定子(zi)阻抗(kang)、互感、磁飽和因素、慣量等(deng)算(suan)出實(shi)際的(de)(de)轉(zhuan)矩(ju)(ju)、定子(zi)磁鏈、轉(zhuan)子(zi)速度進行實(shi)時(shi)(shi)控(kong)(kong)(kong)制； 4、實(shi)現Band—Band控(kong)(kong)(kong)制按磁鏈和轉(zhuan)矩(ju)(ju)的(de)(de)Band—Band控(kong)(kong)(kong)制產生PWM信號(hao)，對逆變(bian)器(qi)開關狀態進行控(kong)(kong)(kong)制。 矩(ju)(ju)陣式(shi)交—交變(bian)頻具有(you)快速的(de)(de)轉(zhuan)矩(ju)(ju)響應(<2ms)，很高的(de)(de)速度精度(±2%，無PG反(fan)饋)，高轉(zhuan)矩(ju)(ju)精度(<+3%)；同時(shi)(shi)還具有(you)較(jiao)高的(de)(de)起動轉(zhuan)矩(ju)(ju)及高轉(zhuan)矩(ju)(ju)精度，尤其在低速時(shi)(shi)(包括(kuo)0速度時(shi)(shi))，可輸出150%～200%轉(zhuan)矩(ju)(ju)。

變(bian)(bian)(bian)頻節能(neng)(neng)變(bian)(bian)(bian)頻器節能(neng)(neng)主(zhu)要(yao)表(biao)現(xian)在風(feng)機(ji)、水泵的(de)(de)(de)(de)應用(yong)(yong)上(shang)。風(feng)機(ji)、泵類(lei)負載采(cai)(cai)用(yong)(yong)變(bian)(bian)(bian)頻調(diao)(diao)速(su)后(hou)，節電(dian)率(lv)為20%～60%，這是因為風(feng)機(ji)、泵類(lei)負載的(de)(de)(de)(de)實際消耗功(gong)(gong)(gong)(gong)率(lv)基本與轉速(su)的(de)(de)(de)(de)三次(ci)方(fang)成(cheng)比例。當用(yong)(yong)戶(hu)需要(yao)的(de)(de)(de)(de)平均流量(liang)(liang)較小時(shi)，風(feng)機(ji)、泵類(lei)采(cai)(cai)用(yong)(yong)變(bian)(bian)(bian)頻調(diao)(diao)速(su)使其轉速(su)降低，節能(neng)(neng)效果非(fei)(fei)常明顯。而(er)傳統(tong)的(de)(de)(de)(de)風(feng)機(ji)、泵類(lei)采(cai)(cai)用(yong)(yong)擋板(ban)和閥門進行流量(liang)(liang)調(diao)(diao)節，電(dian)動(dong)機(ji)轉速(su)基本不(bu)變(bian)(bian)(bian)，耗電(dian)功(gong)(gong)(gong)(gong)率(lv)變(bian)(bian)(bian)化不(bu)大。據統(tong)計，風(feng)機(ji)、泵類(lei)電(dian)動(dong)機(ji)用(yong)(yong)電(dian)量(liang)(liang)占(zhan)全國用(yong)(yong)電(dian)量(liang)(liang)的(de)(de)(de)(de)31%，占(zhan)工業用(yong)(yong)電(dian)量(liang)(liang)的(de)(de)(de)(de)50%。在此類(lei)負載上(shang)使用(yong)(yong)變(bian)(bian)(bian)頻調(diao)(diao)速(su)裝置具有(you)非(fei)(fei)常重要(yao)的(de)(de)(de)(de)意義。目前，應用(yong)(yong)較成(cheng)功(gong)(gong)(gong)(gong)的(de)(de)(de)(de)有(you)恒壓供水、各類(lei)風(feng)機(ji)、中央空調(diao)(diao)和液壓泵的(de)(de)(de)(de)變(bian)(bian)(bian)頻調(diao)(diao)速(su)。常州市笑天自(zi)動(dong)化科技有(you)限(xian)公司主(zhu)營匯川緊湊多功(gong)(gong)(gong)(gong)能(neng)(neng)變(bian)(bian)(bian)頻器，若有(you)需要(yao)，歡迎來電(dian)咨詢。

實現(xian)電(dian)(dian)(dian)機軟啟(qi)(qi)動(dong)電(dian)(dian)(dian)機硬啟(qi)(qi)動(dong)不僅會對電(dian)(dian)(dian)網造成嚴重(zhong)的(de)(de)(de)沖擊，而(er)且會對電(dian)(dian)(dian)網容(rong)量要(yao)求過高(gao)，啟(qi)(qi)動(dong)時產生的(de)(de)(de)大(da)電(dian)(dian)(dian)流和(he)震動(dong)對擋板和(he)閥(fa)門(men)的(de)(de)(de)損害極大(da)，對設備(bei)(bei)、管路的(de)(de)(de)使(shi)用(yong)(yong)壽命(ming)極為不利。而(er)使(shi)用(yong)(yong)變頻器后(hou)，變頻器的(de)(de)(de)軟啟(qi)(qi)動(dong)功能將使(shi)啟(qi)(qi)動(dong)電(dian)(dian)(dian)流從零開始變化，最(zui)大(da)值也不超過額定電(dian)(dian)(dian)流，減輕(qing)了(le)對電(dian)(dian)(dian)網的(de)(de)(de)沖擊和(he)對供電(dian)(dian)(dian)容(rong)量的(de)(de)(de)要(yao)求，延長了(le)設備(bei)(bei)和(he)閥(fa)門(men)的(de)(de)(de)使(shi)用(yong)(yong)壽命(ming)，同時也節省(sheng)設備(bei)(bei)的(de)(de)(de)維護費(fei)用(yong)(yong)。

匯(hui)川(chuan)變頻(pin)器(qi)已(yi)廣泛應用于冶(ye)金(jin)(jin)、起重、石油、化工、機(ji)床、電(dian)動汽車、金(jin)(jin)屬加工、建材、石材、木材加工、陶瓷、塑(su)膠、空壓機(ji)、洗衣機(ji)、供(gong)水、空調、市政工程、紡織(zhi)、印刷、礦山等行業。常州(zhou)市笑天(tian)自動化科技(ji)有限(xian)公司主營匯(hui)川(chuan)靈巧矢(shi)量變頻(pin)器(qi)，若(ruo)有需要，歡迎來電(dian)咨(zi)詢。山東匯(hui)川(chuan)MD500變頻(pin)器(qi)說(shuo)明書

常州(zhou)市笑(xiao)天自動化(hua)科技有限(xian)公司主營匯(hui)川MD310變(bian)頻器(qi)，若有需要，歡迎(ying)來電。福(fu)建匯(hui)川變(bian)頻器(qi)代理商

平(ping)波(bo)(bo)回路(lu)在整流(liu)(liu)(liu)器(qi)整流(liu)(liu)(liu)后的(de)(de)直(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)壓(ya)(ya)(ya)中，含有電(dian)(dian)(dian)源(yuan)6倍頻(pin)率的(de)(de)脈動(dong)(dong)電(dian)(dian)(dian)壓(ya)(ya)(ya)，此外逆變器(qi)產生的(de)(de)脈動(dong)(dong)電(dian)(dian)(dian)流(liu)(liu)(liu)也使直(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)壓(ya)(ya)(ya)變動(dong)(dong)。為了抑制電(dian)(dian)(dian)壓(ya)(ya)(ya)波(bo)(bo)動(dong)(dong)，采用電(dian)(dian)(dian)感(gan)和電(dian)(dian)(dian)容(rong)(rong)吸(xi)收(shou)脈動(dong)(dong)電(dian)(dian)(dian)壓(ya)(ya)(ya)（電(dian)(dian)(dian)流(liu)(liu)(liu)）。裝置(zhi)容(rong)(rong)量小(xiao)時，如果(guo)電(dian)(dian)(dian)源(yuan)和主(zhu)電(dian)(dian)(dian)路(lu)構成器(qi)件有余量，可以省(sheng)去電(dian)(dian)(dian)感(gan)采用簡單的(de)(de)平(ping)波(bo)(bo)回路(lu)。

逆變(bian)器同(tong)整流器相(xiang)(xiang)反，逆變(bian)器是將直流功率變(bian)換為所(suo)要求頻率的(de)交(jiao)流功率，以(yi)(yi)所(suo)確(que)定(ding)的(de)時(shi)(shi)間使6個開關器件(jian)導通、關斷就可以(yi)(yi)得到3相(xiang)(xiang)交(jiao)流輸出(chu)(chu)。以(yi)(yi)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)型pwm逆變(bian)器為例(li)示出(chu)(chu)開關時(shi)(shi)間和(he)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)波形。 控(kong)制(zhi)電(dian)(dian)(dian)(dian)路(lu)(lu)是給異(yi)步電(dian)(dian)(dian)(dian)動機供電(dian)(dian)(dian)(dian)（電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)、頻率可調）的(de)主電(dian)(dian)(dian)(dian)路(lu)(lu)提(ti)供控(kong)制(zhi)信號的(de)回路(lu)(lu)，它(ta)有頻率、電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)“運算(suan)電(dian)(dian)(dian)(dian)路(lu)(lu)”，主電(dian)(dian)(dian)(dian)路(lu)(lu)的(de)“電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)、電(dian)(dian)(dian)(dian)流檢測電(dian)(dian)(dian)(dian)路(lu)(lu)”，電(dian)(dian)(dian)(dian)動機的(de)“速度檢測電(dian)(dian)(dian)(dian)路(lu)(lu)”，將運算(suan)電(dian)(dian)(dian)(dian)路(lu)(lu)的(de)控(kong)制(zhi)信號進(jin)行(xing)放大(da)的(de)“驅動電(dian)(dian)(dian)(dian)路(lu)(lu)”，以(yi)(yi)及逆變(bian)器和(he)電(dian)(dian)(dian)(dian)動機的(de)“保護電(dian)(dian)(dian)(dian)路(lu)(lu)”組成。福建匯(hui)川變(bian)頻器代理(li)商

常州市笑天(tian)(tian)自(zi)動化(hua)科(ke)技(ji)有限公(gong)(gong)司在(zai)同行(xing)業領域(yu)中，一(yi)直處在(zai)一(yi)個(ge)不(bu)斷(duan)銳意(yi)進(jin)取，不(bu)斷(duan)制造創(chuang)(chuang)新(xin)(xin)(xin)的(de)市場(chang)(chang)高度，多(duo)年以來(lai)(lai)(lai)致力于發展富(fu)(fu)有創(chuang)(chuang)新(xin)(xin)(xin)價值理念的(de)產品標(biao)準，在(zai)江(jiang)蘇省等地區的(de)機械及行(xing)業設備中始終保持良(liang)好的(de)商(shang)業口碑，成(cheng)績讓(rang)我(wo)(wo)們(men)喜悅，但不(bu)會讓(rang)我(wo)(wo)們(men)止(zhi)步，殘酷的(de)市場(chang)(chang)磨(mo)煉了我(wo)(wo)們(men)堅強不(bu)屈的(de)意(yi)志，和諧溫馨的(de)工(gong)作環境，富(fu)(fu)有營養的(de)公(gong)(gong)司土壤滋養著我(wo)(wo)們(men)不(bu)斷(duan)開拓(tuo)創(chuang)(chuang)新(xin)(xin)(xin)，勇于進(jin)取的(de)無限潛力，常州市笑天(tian)(tian)自(zi)動化(hua)科(ke)技(ji)供應攜手大(da)家一(yi)起(qi)走向共同輝(hui)煌的(de)未(wei)來(lai)(lai)(lai)，回首過去，我(wo)(wo)們(men)不(bu)會因為取得(de)了一(yi)點點成(cheng)績而(er)沾(zhan)沾(zhan)自(zi)喜，相(xiang)反的(de)是面(mian)(mian)對競爭越來(lai)(lai)(lai)越激烈的(de)市場(chang)(chang)氛(fen)圍，我(wo)(wo)們(men)更要明確自(zi)己的(de)不(bu)足(zu)，做好迎(ying)接新(xin)(xin)(xin)挑戰的(de)準備，要不(bu)畏困難(nan)，激流(liu)勇進(jin)，以一(yi)個(ge)更嶄新(xin)(xin)(xin)的(de)精神面(mian)(mian)貌迎(ying)接大(da)家，共同走向輝(hui)煌回來(lai)(lai)(lai)！

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