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西門子直流控制器啟動面板無顯示修理診斷
上海恒稅電(dian)氣有限公司(si)是(shi)國(guo)內較早從事工(gong)控設備(bei)維(wei)修(xiu)(xiu)單(dan)位,是(shi)德國(guo)SIEMENS西門子專(zhuan)業維(wei)修(xiu)(xiu)單(dan)位,目(mu)前擁有專(zhuan)業的維(wei)修(xiu)(xiu)工(gong)程(cheng)師和*維(wei)修(xiu)(xiu)設備(bei),直(zhi)流調(diao)速器在數控機床、造紙印(yin)(yin)刷、紡織印(yin)(yin)染、光纜線(xian)纜設備(bei)、包裝(zhuang)機械(xie)(xie)、電(dian)工(gong)機械(xie)(xie)、食(shi)品加工(gong)機械(xie)(xie)、橡膠機械(xie)(xie)、生物設備(bei)、印(yin)(yin)制電(dian)路板(ban)設備(bei)、實驗(yan)設備(bei)、焊接(jie)切(qie)割、輕(qing)工(gong)機械(xie)(xie)、物流輸送(song)設備(bei)、機車車輛、醫設備(bei)、通訊設備(bei)、雷(lei)達設備(bei)、衛星(xing)地面接(jie)受系統等(deng)行(xing)業廣泛應(ying)用(yong)。
變頻(pin)(pin)(pin)(pin)器(qi)(qi)(qi)按頻(pin)(pin)(pin)(pin)率變換(huan)的方法分為交(jiao)(jiao)-交(jiao)(jiao)型(xing)變頻(pin)(pin)(pin)(pin)器(qi)(qi)(qi)和交(jiao)(jiao)-直(zhi)(zhi)交(jiao)(jiao)型(xing)變頻(pin)(pin)(pin)(pin)器(qi)(qi)(qi)。交(jiao)(jiao)-交(jiao)(jiao)型(xing)變頻(pin)(pin)(pin)(pin)器(qi)(qi)(qi)可將工頻(pin)(pin)(pin)(pin)交(jiao)(jiao)流(liu)電(dian)(dian)直(zhi)(zhi)接(jie)轉換(huan)成(cheng)頻(pin)(pin)(pin)(pin)率、電(dian)(dian)壓均可以控制的交(jiao)(jiao)流(liu),故稱(cheng)直(zhi)(zhi)接(jie)式變頻(pin)(pin)(pin)(pin)器(qi)(qi)(qi)。交(jiao)(jiao)直(zhi)(zhi)-交(jiao)(jiao)型(xing)變頻(pin)(pin)(pin)(pin)器(qi)(qi)(qi)則是先把工頻(pin)(pin)(pin)(pin)交(jiao)(jiao)流(liu)電(dian)(dian)通過整流(liu)裝置轉變成(cheng)直(zhi)(zhi)流(liu)電(dian)(dian),然后再把直(zhi)(zhi)流(liu)電(dian)(dian)變換(huan)成(cheng)頻(pin)(pin)(pin)(pin)率、電(dian)(dian)壓均可以調節的交(jiao)(jiao)流(liu)電(dian)(dian),故又稱(cheng)為間接(jie)型(xing)變頻(pin)(pin)(pin)(pin)器(qi)(qi)(qi)。
低壓通(tong)用變頻輸出電(dian)(dian)壓為(wei)380~650V,輸出功率為(wei)0.75~400kW,工(gong)作(zuo)頻率為(wei)0~400Hz,它的主(zhu)電(dian)(dian)路(lu)都采用交—直—交電(dian)(dian)路(lu)。其控(kong)制方式經歷(li)了(le)以下四代:
西門子直流控制器啟動面板無顯示修理診斷正弦脈(mo)寬調制(zhi)(SPWM)控(kong)(kong)制(zhi)方(fang)(fang)式(shi)→電(dian)壓空間矢(shi)量(SVPWM)控(kong)(kong)制(zhi)方(fang)(fang)式(shi)→矢(shi)量控(kong)(kong)制(zhi)(VC)方(fang)(fang)式(shi)→直(zhi)接轉矩控(kong)(kong)制(zhi)(DTC)方(fang)(fang)式(shi)→矩陣式(shi)交—交控(kong)(kong)制(zhi)方(fang)(fang)式(shi)
矩(ju)陣式(shi)交—交控制(zhi)方式(shi)的具體方法(fa):
1、控制定(ding)(ding)子磁鏈引(yin)入定(ding)(ding)子磁鏈觀測器,實現無速度傳(chuan)感(gan)器方式;
2、自動(dong)識別(ID)依靠電機(ji)數(shu)(shu)學模型(xing),對電機(ji)參數(shu)(shu)自動(dong)識別;