大連控制柜、變頻控制箱和大連PLC變頻控制柜出現在市場中引(yin)起銷售熱潮，其功(gong)(gong)能(neng)全面特點是起到(dao)(dao)很大(da)作(zuo)用(yong)，不同(tong)功(gong)(gong)能(neng)迎合到(dao)(dao)市場不同(tong)用(yong)戶群(qun)體，迅速占據到(dao)(dao)各大(da)市場空間。以下(xia)就來為大(da)家全面介紹PLC變頻(pin)控制(zhi)柜功(gong)(gong)能(neng)信息內(nei)容： 

1、電源(yuan)切換(huan)與(yu)保(bao)護(hu)(hu)功能，PLC變頻(pin)控(kong)(kong)制(zhi)柜(ju)通常設(she)計有短路(lu)器元件，連接(jie)著進線電源(yuan)，可以幫助變頻(pin)設(she)備完成電路(lu)通斷控(kong)(kong)制(zhi)，并能夠在電路(lu)和(he)變頻(pin)器出現短路(lu)或是運行過載時(shi)給予保(bao)護(hu)(hu)，解(jie)決設(she)備在運行中會(hui)發生(sheng)電力(li)輸送(song)安全(quan)問題，對(dui)操(cao)控(kong)(kong)人員人身安全(quan)起到(dao)保(bao)護(hu)(hu)。 

2、變(bian)頻(pin)(pin)(pin)調速(su)功(gong)能，PLC變(bian)頻(pin)(pin)(pin)控(kong)制柜面板上設有變(bian)頻(pin)(pin)(pin)調速(su)用電位器，可以(yi)根據操作人員輸送頻(pin)(pin)(pin)率(lv)，向電機輸送指令信號，控(kong)制電機運行速(su)度，并且在部分產品設有工(gong)頻(pin)(pin)(pin)切(qie)換功(gong)能，以(yi)確保變(bian)頻(pin)(pin)(pin)器出現(xian)故(gu)(gu)障時，可以(yi)通過裝置實現(xian)最低故(gu)(gu)障發生，減少(shao)設備出現(xian)損(sun)壞次(ci)數。 

國家發改委(wei)啟動的(de)十大(da)重點(dian)節(jie)(jie)能工(gong)程之一(yi)就是電機(ji)(ji)系統(tong)節(jie)(jie)能，并要求：推廣(guang)變(bian)頻(pin)調速(su)節(jie)(jie)能技術(shu)，風(feng)機(ji)(ji)、水泵、壓(ya)縮機(ji)(ji)等通用機(ji)(ji)械系統(tong)采用變(bian)頻(pin)調速(su)節(jie)(jie)能措施(shi)，工(gong)業機(ji)(ji)械采用交流(liu)電動機(ji)(ji)變(bian)頻(pin)調速(su)技術(shu)；制定相關經濟(ji)激(ji)勵政策(ce)、完善(shan)電機(ji)(ji)能效標準體系等配套措施(shi)；“十一(yi)五(wu)”期間(jian)，實現電機(ji)(ji)系統(tong)運行效率提高2個百分(fen)點(dian)，形成年節(jie)(jie)電能力(li)200億千瓦時。 

為(wei)推動(dong)全(quan)社(she)會(hui)(hui)展(zhan)開節(jie)(jie)能降耗(hao)，緩解能源瓶頸的(de)制(zhi)約，建(jian)(jian)設(she)節(jie)(jie)能型社(she)會(hui)(hui)，國家發改委(wei)制(zhi)定了《節(jie)(jie)能中長期專項(xiang)規劃(hua)》，并在2004年11月25日向全(quan)社(she)會(hui)(hui)發布。該“規劃(hua)”明確(que)指出(chu)：能源是戰略資源，是全(quan)面(mian)建(jian)(jian)設(she)小(xiao)康社(she)會(hui)(hui)的(de)重要物質基礎(chu)，必須堅(jian)持節(jie)(jie)約優(you)先。 

隨(sui)著(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)技(ji)術和(he)(he)開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)行(xing)業的(de)(de)(de)飛(fei)速(su)發展，電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)設備(bei)與人們的(de)(de)(de)工(gong)作、生(sheng)活的(de)(de)(de)關(guan)(guan)(guan)(guan)(guan)系日益密切，而電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)設備(bei)都離(li)不開(kai)(kai)(kai)可靠的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，進入(ru)(ru)80年代(dai)(dai)(dai)計(ji)算機電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)全(quan)面實現了開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)化，率先完成計(ji)算機的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)換代(dai)(dai)(dai)，進入(ru)(ru)90年代(dai)(dai)(dai)開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)相(xiang)繼進入(ru)(ru)各(ge)種電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)、電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)設備(bei)領域，程(cheng)控(kong)交(jiao)換機、通(tong)訊、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)檢測設備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)、控(kong)制設備(bei)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)等(deng)都已廣(guang)泛(fan)地(di)使用了開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，更促進了開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)技(ji)術的(de)(de)(de)迅速(su)發展。開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)是利用現代(dai)(dai)(dai)電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)技(ji)術，控(kong)制開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)晶體管開(kai)(kai)(kai)通(tong)和(he)(he)關(guan)(guan)(guan)(guan)(guan)斷(duan)的(de)(de)(de)時間比率，維持穩定(ding)輸出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)壓的(de)(de)(de)一種電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)一般(ban)由脈(mo)沖寬度(du)調制（PWM）控(kong)制IC和(he)(he)MOSFET構成。開(kai)(kai)(kai)關(guan)(guan)(guan)(guan)(guan)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)和(he)(he)線(xian)性電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)相(xiang)比，二者的(de)(de)(de)成本都隨(sui)著(zhu)輸出(chu)功率的(de)(de)(de)增加(jia)而增長(chang)，但二者增長(chang)速(su)率各(ge)異。