控(kong)制應用內置有PID調節器(qi)，配合頻率給定(ding)通道的(de)選擇，用戶可方便地實現(xian)過程控(kong)制的(de)自動調節，實現(xian)例(li)如恒溫(wen)、恒壓、張力等更高的(de)安(an)全及認(ren)證CE、UL、CUL、ROHS滿足(zu)用戶的(de)設備(bei)出口認(ren)證要求(qiu)

多電網需求滿足包括(kuo)歐洲(zhou)，北(bei)美，印度(du)等在內的380~480V三相電網需求多功能(neng)內置H級絕緣等級直流電抗器(qi)、完(wan)善的直流制(zhi)動回路方案，支持飛(fei)車啟動、智能(neng)節能(neng)功能(neng)、多點(dian)電壓磁通設置功能(neng)、配備PID控(kong)制(zhi)功能(neng)，無需溫度(du)調(diao)節器(qi)，即可實現(xian)溫度(du)、壓力、流量控(kong)制(zhi)運轉(zhuan)常州市(shi)笑天自(zi)動化科技(ji)有限公司主營匯川(chuan)變頻器(qi)MD290，若有需要，歡迎(ying)來電咨詢。福建(jian)匯川(chuan)變頻器(qi)代理商

直(zhi)接(jie)轉(zhuan)(zhuan)矩控(kong)制(zhi)(zhi)(DTC)方式(shi)1985年，德國魯爾大學(xue)的(de)(de)DePenbrock教授(shou)提出(chu)了(le)(le)直(zhi)接(jie)轉(zhuan)(zhuan)矩控(kong)制(zhi)(zhi)變(bian)(bian)頻技(ji)術。該(gai)技(ji)術在很大程度上(shang)解(jie)決了(le)(le)上(shang)述矢量控(kong)制(zhi)(zhi)的(de)(de)不足(zu)，并以新穎的(de)(de)控(kong)制(zhi)(zhi)思想(xiang)、簡潔明了(le)(le)的(de)(de)系統結(jie)構、優良(liang)的(de)(de)動(dong)(dong)(dong)靜態性能(neng)得到了(le)(le)迅速發(fa)展。該(gai)技(ji)術已成功(gong)地(di)應用(yong)在電(dian)(dian)(dian)力(li)機(ji)車牽(qian)引的(de)(de)大功(gong)率(lv)交流(liu)傳(chuan)動(dong)(dong)(dong)上(shang)。 直(zhi)接(jie)轉(zhuan)(zhuan)矩控(kong)制(zhi)(zhi)直(zhi)接(jie)在定(ding)子坐標系下分析交流(liu)電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)的(de)(de)數學(xue)模(mo)型(xing)(xing)，控(kong)制(zhi)(zhi)電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)的(de)(de)磁鏈和轉(zhuan)(zhuan)矩。它不需要將交流(liu)電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)等效為(wei)直(zhi)流(liu)電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)，因而省去了(le)(le)矢量旋轉(zhuan)(zhuan)變(bian)(bian)換中的(de)(de)許多復雜(za)計算；它不需要模(mo)仿直(zhi)流(liu)電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)的(de)(de)控(kong)制(zhi)(zhi)，也不需要為(wei)解(jie)耦而簡化交流(liu)電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)的(de)(de)數學(xue)模(mo)型(xing)(xing)。江蘇匯川單傳(chuan)變(bian)(bian)頻器維(wei)修常州市笑天(tian)自動(dong)(dong)(dong)化科技(ji)有(you)(you)限公司主營匯川起重變(bian)(bian)頻器，若有(you)(you)需要，歡迎來(lai)電(dian)(dian)(dian)咨詢。

VVVF變(bian)(bian)頻、矢(shi)量控(kong)制變(bian)(bian)頻、直接(jie)轉矩控(kong)制變(bian)(bian)頻都是(shi)(shi)交(jiao)—直—交(jiao)變(bian)(bian)頻中的(de)(de)(de)一種。其共同缺點是(shi)(shi)輸(shu)入(ru)功(gong)率因數低，諧(xie)波電(dian)(dian)流(liu)大，直流(liu)電(dian)(dian)路需要大的(de)(de)(de)儲能(neng)(neng)電(dian)(dian)容，再生(sheng)能(neng)(neng)量又(you)不能(neng)(neng)反饋回電(dian)(dian)網，即不能(neng)(neng)進行四象(xiang)限運(yun)行。為(wei)此，矩陣(zhen)式交(jiao)—交(jiao)變(bian)(bian)頻應運(yun)而生(sheng)。由于矩陣(zhen)式交(jiao)—交(jiao)變(bian)(bian)頻省去了中間直流(liu)環節，從而省去了體積(ji)大、價(jia)格貴的(de)(de)(de)電(dian)(dian)解電(dian)(dian)容。它能(neng)(neng)實現功(gong)率因數為(wei)l，輸(shu)入(ru)電(dian)(dian)流(liu)為(wei)正弦(xian)且(qie)能(neng)(neng)四象(xiang)限運(yun)行，系統(tong)的(de)(de)(de)功(gong)率密度大。該技(ji)術雖尚未成熟，但(dan)仍吸引著眾多的(de)(de)(de)學者深入(ru)研究。其實質不是(shi)(shi)間接(jie)的(de)(de)(de)控(kong)制電(dian)(dian)流(liu)、磁鏈(lian)等(deng)量，而是(shi)(shi)把轉矩直接(jie)作為(wei)被控(kong)制量來(lai)實現的(de)(de)(de)。具體方法是(shi)(shi)：

1、控制(zhi)定(ding)子磁(ci)鏈引入(ru)定(ding)子磁(ci)鏈觀測器(qi)，實現無速(su)度傳感器(qi)方式；

2、自(zi)動識別(ID)依靠精確的電機數學(xue)模型，對電機參數自(zi)動識別；

3、算(suan)出實(shi)際值(zhi)對(dui)(dui)應(ying)定(ding)子(zi)阻(zu)抗(kang)、互(hu)感、磁飽和因素、慣量等算(suan)出實(shi)際的(de)(de)(de)轉(zhuan)(zhuan)(zhuan)矩(ju)、定(ding)子(zi)磁鏈、轉(zhuan)(zhuan)(zhuan)子(zi)速(su)度(du)(du)(du)進行實(shi)時(shi)控制； 4、實(shi)現(xian)Band—Band控制按磁鏈和轉(zhuan)(zhuan)(zhuan)矩(ju)的(de)(de)(de)Band—Band控制產(chan)生PWM信號，對(dui)(dui)逆(ni)變(bian)器開關狀態進行控制。 矩(ju)陣(zhen)式交—交變(bian)頻具(ju)有快速(su)的(de)(de)(de)轉(zhuan)(zhuan)(zhuan)矩(ju)響應(ying)(<2ms)，很高(gao)的(de)(de)(de)速(su)度(du)(du)(du)精(jing)度(du)(du)(du)(±2%，無PG反饋)，高(gao)轉(zhuan)(zhuan)(zhuan)矩(ju)精(jing)度(du)(du)(du)(<+3%)；同時(shi)還具(ju)有較高(gao)的(de)(de)(de)起(qi)動轉(zhuan)(zhuan)(zhuan)矩(ju)及高(gao)轉(zhuan)(zhuan)(zhuan)矩(ju)精(jing)度(du)(du)(du)，尤其(qi)在低(di)速(su)時(shi)(包括0速(su)度(du)(du)(du)時(shi))，可(ke)輸出150%～200%轉(zhuan)(zhuan)(zhuan)矩(ju)。

變頻(pin)(pin)(pin)節(jie)(jie)能變頻(pin)(pin)(pin)器(qi)節(jie)(jie)能主要(yao)表(biao)現在風(feng)(feng)(feng)機、水泵(beng)(beng)(beng)(beng)的(de)(de)應用(yong)上。風(feng)(feng)(feng)機、泵(beng)(beng)(beng)(beng)類(lei)(lei)負(fu)載采用(yong)變頻(pin)(pin)(pin)調(diao)(diao)(diao)速(su)(su)后，節(jie)(jie)電(dian)(dian)(dian)率為20%～60%，這是因為風(feng)(feng)(feng)機、泵(beng)(beng)(beng)(beng)類(lei)(lei)負(fu)載的(de)(de)實際(ji)消(xiao)耗功率基本與轉(zhuan)(zhuan)速(su)(su)的(de)(de)三(san)次方成比(bi)例(li)。當用(yong)戶需要(yao)的(de)(de)平均流(liu)量較小時，風(feng)(feng)(feng)機、泵(beng)(beng)(beng)(beng)類(lei)(lei)采用(yong)變頻(pin)(pin)(pin)調(diao)(diao)(diao)速(su)(su)使(shi)其(qi)轉(zhuan)(zhuan)速(su)(su)降低，節(jie)(jie)能效果(guo)非(fei)(fei)常(chang)明顯。而傳統的(de)(de)風(feng)(feng)(feng)機、泵(beng)(beng)(beng)(beng)類(lei)(lei)采用(yong)擋板和閥門進行流(liu)量調(diao)(diao)(diao)節(jie)(jie)，電(dian)(dian)(dian)動機轉(zhuan)(zhuan)速(su)(su)基本不變，耗電(dian)(dian)(dian)功率變化不大。據統計，風(feng)(feng)(feng)機、泵(beng)(beng)(beng)(beng)類(lei)(lei)電(dian)(dian)(dian)動機用(yong)電(dian)(dian)(dian)量占(zhan)(zhan)全國(guo)用(yong)電(dian)(dian)(dian)量的(de)(de)31%，占(zhan)(zhan)工業用(yong)電(dian)(dian)(dian)量的(de)(de)50%。在此類(lei)(lei)負(fu)載上使(shi)用(yong)變頻(pin)(pin)(pin)調(diao)(diao)(diao)速(su)(su)裝置(zhi)具有(you)非(fei)(fei)常(chang)重要(yao)的(de)(de)意義(yi)。目前，應用(yong)較成功的(de)(de)有(you)恒(heng)壓供水、各類(lei)(lei)風(feng)(feng)(feng)機、中央空調(diao)(diao)(diao)和液壓泵(beng)(beng)(beng)(beng)的(de)(de)變頻(pin)(pin)(pin)調(diao)(diao)(diao)速(su)(su)。常(chang)州市笑天自動化科技有(you)限(xian)公司主營匯川(chuan)緊湊多功能變頻(pin)(pin)(pin)器(qi)，若(ruo)有(you)需要(yao)，歡迎來電(dian)(dian)(dian)咨詢。

實現(xian)電(dian)(dian)機(ji)(ji)軟(ruan)啟(qi)動(dong)電(dian)(dian)機(ji)(ji)硬啟(qi)動(dong)不(bu)(bu)僅會(hui)對(dui)電(dian)(dian)網(wang)造成嚴重的(de)(de)(de)(de)沖(chong)擊(ji)，而(er)且(qie)會(hui)對(dui)電(dian)(dian)網(wang)容量要求(qiu)(qiu)過高，啟(qi)動(dong)時(shi)產生的(de)(de)(de)(de)大(da)電(dian)(dian)流和震動(dong)對(dui)擋(dang)板和閥門(men)的(de)(de)(de)(de)損害(hai)極(ji)大(da)，對(dui)設(she)(she)備(bei)、管路的(de)(de)(de)(de)使(shi)(shi)用(yong)壽命極(ji)為(wei)不(bu)(bu)利。而(er)使(shi)(shi)用(yong)變(bian)(bian)(bian)頻器后，變(bian)(bian)(bian)頻器的(de)(de)(de)(de)軟(ruan)啟(qi)動(dong)功能(neng)將(jiang)使(shi)(shi)啟(qi)動(dong)電(dian)(dian)流從(cong)零開始變(bian)(bian)(bian)化(hua)，最大(da)值也(ye)不(bu)(bu)超(chao)過額定電(dian)(dian)流，減輕了對(dui)電(dian)(dian)網(wang)的(de)(de)(de)(de)沖(chong)擊(ji)和對(dui)供電(dian)(dian)容量的(de)(de)(de)(de)要求(qiu)(qiu)，延長(chang)了設(she)(she)備(bei)和閥門(men)的(de)(de)(de)(de)使(shi)(shi)用(yong)壽命，同時(shi)也(ye)節省(sheng)設(she)(she)備(bei)的(de)(de)(de)(de)維護費用(yong)。

匯川變頻器(qi)(qi)已廣(guang)泛應用于冶金、起重、石油、化(hua)工(gong)(gong)、機(ji)床、電動汽車、金屬加工(gong)(gong)、建材(cai)(cai)、石材(cai)(cai)、木(mu)材(cai)(cai)加工(gong)(gong)、陶瓷、塑膠、空壓(ya)機(ji)、洗衣機(ji)、供水(shui)、空調、市政工(gong)(gong)程、紡織、印刷、礦山等(deng)行業。常州市笑天(tian)自動化(hua)科技有(you)限公司主營匯川靈巧矢量變頻器(qi)(qi)，若(ruo)有(you)需要，歡迎來電咨(zi)詢。山東匯川MD500變頻器(qi)(qi)說明書

常州市笑(xiao)天自(zi)動化科(ke)技有(you)限公司(si)主(zhu)營匯(hui)川MD310變頻器(qi)，若(ruo)有(you)需要，歡迎來電。福建匯(hui)川變頻器(qi)代理商

平波回路在整流(liu)器(qi)整流(liu)后的(de)(de)(de)直流(liu)電(dian)(dian)(dian)壓(ya)(ya)中，含有電(dian)(dian)(dian)源(yuan)6倍頻率的(de)(de)(de)脈(mo)動(dong)電(dian)(dian)(dian)壓(ya)(ya)，此外逆變(bian)器(qi)產生的(de)(de)(de)脈(mo)動(dong)電(dian)(dian)(dian)流(liu)也使直流(liu)電(dian)(dian)(dian)壓(ya)(ya)變(bian)動(dong)。為了抑制電(dian)(dian)(dian)壓(ya)(ya)波動(dong)，采用電(dian)(dian)(dian)感和電(dian)(dian)(dian)容(rong)吸收脈(mo)動(dong)電(dian)(dian)(dian)壓(ya)(ya)（電(dian)(dian)(dian)流(liu)）。裝置容(rong)量小時，如果(guo)電(dian)(dian)(dian)源(yuan)和主(zhu)電(dian)(dian)(dian)路構成器(qi)件有余量，可(ke)以(yi)省去電(dian)(dian)(dian)感采用簡單的(de)(de)(de)平波回路。

逆變器(qi)(qi)(qi)同整流器(qi)(qi)(qi)相反，逆變器(qi)(qi)(qi)是(shi)將(jiang)直流功率(lv)變換為(wei)所要(yao)求頻(pin)(pin)(pin)率(lv)的交流功率(lv)，以(yi)所確定(ding)的時(shi)間(jian)使6個開關器(qi)(qi)(qi)件導(dao)通、關斷就可以(yi)得到3相交流輸出。以(yi)電(dian)(dian)(dian)(dian)(dian)壓型(xing)pwm逆變器(qi)(qi)(qi)為(wei)例示出開關時(shi)間(jian)和電(dian)(dian)(dian)(dian)(dian)壓波形(xing)。 控(kong)制電(dian)(dian)(dian)(dian)(dian)路(lu)是(shi)給異步電(dian)(dian)(dian)(dian)(dian)動(dong)機供(gong)電(dian)(dian)(dian)(dian)(dian)（電(dian)(dian)(dian)(dian)(dian)壓、頻(pin)(pin)(pin)率(lv)可調）的主(zhu)電(dian)(dian)(dian)(dian)(dian)路(lu)提供(gong)控(kong)制信號的回路(lu)，它有頻(pin)(pin)(pin)率(lv)、電(dian)(dian)(dian)(dian)(dian)壓的“運(yun)算(suan)電(dian)(dian)(dian)(dian)(dian)路(lu)”，主(zhu)電(dian)(dian)(dian)(dian)(dian)路(lu)的“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)”，電(dian)(dian)(dian)(dian)(dian)動(dong)機的“速度檢測(ce)電(dian)(dian)(dian)(dian)(dian)路(lu)”，將(jiang)運(yun)算(suan)電(dian)(dian)(dian)(dian)(dian)路(lu)的控(kong)制信號進行放大的“驅動(dong)電(dian)(dian)(dian)(dian)(dian)路(lu)”，以(yi)及(ji)逆變器(qi)(qi)(qi)和電(dian)(dian)(dian)(dian)(dian)動(dong)機的“保護(hu)電(dian)(dian)(dian)(dian)(dian)路(lu)”組成。福(fu)建匯川(chuan)變頻(pin)(pin)(pin)器(qi)(qi)(qi)代理商

常(chang)(chang)州市笑天(tian)自動化科技有限公(gong)司(si)在(zai)同(tong)行業領(ling)域中(zhong)，一(yi)直處在(zai)一(yi)個不斷(duan)銳意進(jin)取(qu)，不斷(duan)制造創(chuang)新(xin)(xin)的(de)(de)市場(chang)高度，多年以(yi)來致(zhi)力于發展富有創(chuang)新(xin)(xin)價(jia)值理念的(de)(de)產(chan)品標準，在(zai)江蘇省等地(di)區的(de)(de)機械及行業設備中(zhong)始終保持(chi)良好的(de)(de)商業口碑(bei)，成績讓我(wo)(wo)們(men)喜悅，但(dan)不會(hui)(hui)讓我(wo)(wo)們(men)止步，殘酷的(de)(de)市場(chang)磨煉(lian)了我(wo)(wo)們(men)堅強不屈的(de)(de)意志，和諧溫(wen)馨的(de)(de)工作環境，富有營(ying)養的(de)(de)公(gong)司(si)土壤(rang)滋養著我(wo)(wo)們(men)不斷(duan)開拓創(chuang)新(xin)(xin)，勇于進(jin)取(qu)的(de)(de)無限潛力，常(chang)(chang)州市笑天(tian)自動化科技供應攜手大(da)家(jia)一(yi)起走(zou)向共同(tong)輝煌的(de)(de)未來，回首過去，我(wo)(wo)們(men)不會(hui)(hui)因為取(qu)得了一(yi)點點成績而沾(zhan)(zhan)沾(zhan)(zhan)自喜，相反的(de)(de)是面對競爭(zheng)越(yue)來越(yue)激(ji)烈(lie)的(de)(de)市場(chang)氛(fen)圍(wei)，我(wo)(wo)們(men)更要(yao)明確自己的(de)(de)不足，做好迎接新(xin)(xin)挑戰的(de)(de)準備，要(yao)不畏困難，激(ji)流勇進(jin)，以(yi)一(yi)個更嶄新(xin)(xin)的(de)(de)精神(shen)面貌迎接大(da)家(jia)，共同(tong)走(zou)向輝煌回來！

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