恒(heng)壓(ya)供水(shui)專用(yong)變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)的(de)優點及其應用(yong)是怎么(me)樣的(de)?目前是如(ru)何發(fa)展(zhan)的(de)呢?隨(sui)著電(dian)(dian)力電(dian)(dian)子(zi)技術、微電(dian)(dian)子(zi)技術及現代控(kong)制(zhi)(zhi)(zhi)理論的(de)發(fa)展(zhan)，變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)已經成為(wei)電(dian)(dian)器(qi)調速(su)(su)的(de)主(zhu)(zhu)流(liu)，成為(wei)現代工業(ye)控(kong)制(zhi)(zhi)(zhi)的(de)主(zhu)(zhu)要(yao)組成部分(fen)。變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)在(zai)風機(ji)(ji)(ji)、水(shui)泵、壓(ya)縮機(ji)(ji)(ji)等流(liu)體(ti)機(ji)(ji)(ji)械上應用(yong)可(ke)以(yi)(yi)節約能(neng)(neng)源;在(zai)紡織、化(hua)纖、塑料(liao)、化(hua)工等工業(ye)領域應用(yong)可(ke)改善控(kong)制(zhi)(zhi)(zhi)性能(neng)(neng)，從而(er)提高(gao)其產品質量(liang)和(he)數(shu)量(liang);在(zai)機(ji)(ji)(ji)械行(xing)業(ye)中(zhong)應用(yong)，可(ke)以(yi)(yi)成為(wei)改造傳(chuan)統(tong)產業(ye)、實(shi)現機(ji)(ji)(ji)電(dian)(dian)一體(ti)化(hua)的(de)重要(yao)手段。變(bian)(bian)頻(pin)(pin)(pin)(pin)技術與傳(chuan)統(tong)的(de)交流(liu)拖(tuo)動系統(tong)相(xiang)比，利用(yong)變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)對(dui)交流(liu)電(dian)(dian)動機(ji)(ji)(ji)進行(xing)調速(su)(su)控(kong)制(zhi)(zhi)(zhi)有許多優點。如(ru)節電(dian)(dian)，可(ke)以(yi)(yi)實(shi)現大范圍內的(de)連續調速(su)(su)控(kong)制(zhi)(zhi)(zhi)，對(dui)速(su)(su)度的(de)控(kong)制(zhi)(zhi)(zhi)更精確(que)。電(dian)(dian)動機(ji)(ji)(ji)的(de)正反轉切換簡單，可(ke)以(yi)(yi)進行(xing)高(gao)強度的(de)起(qi)停(ting)運行(xing)、電(dian)(dian)氣制(zhi)(zhi)(zhi)動以(yi)(yi)及對(dui)電(dian)(dian)動機(ji)(ji)(ji)的(de)高(gao)速(su)(su)驅動。最為(wei)突出的(de)是變(bian)(bian)頻(pin)(pin)(pin)(pin)調速(su)(su)的(de)保(bao)護功能(neng)(neng)完善。變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)的(de)保(bao)護功能(neng)(neng)很強，在(zai)運行(xing)過程中(zhong)能(neng)(neng)檢(jian)測到各種故障(zhang)，并顯示故障(zhang)類別，繼而(er)立即封(feng)鎖輸出電(dian)(dian)壓(ya)。在(zai)保(bao)護變(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)的(de)同時也使電(dian)(dian)動機(ji)(ji)(ji)不易損壞(huai)。而(er)且，主(zhu)(zhu)要(yao)控(kong)制(zhi)(zhi)(zhi)部分(fen)有單片機(ji)(ji)(ji)執行(xing)，它(ta)體(ti)積小(xiao)、價(jia)格低、功能(neng)(neng)強大、可(ke)靠性高(gao)、靈活(huo)方便。總的(de)來說(shuo)，變(bian)(bian)頻(pin)(pin)(pin)(pin)調速(su)(su)生活(huo)消防恒(heng)壓(ya)供水(shui)系統(tong)有以(yi)(yi)下優點：

　　(1)高效節(jie)能:變頻恒壓供水(shui)系統的最(zui)顯(xian)著優點就是(shi)節(jie)約電能，節(jie)能量(liang)通(tong)常在30%～40%。從單(dan)臺水(shui)泵(beng)的節(jie)能來看(kan)，流量(liang)越(yue)小，節(jie)能量(liang)越(yue)大(da)。恒壓供水(shui)專用變頻器

　　(2)恒壓(ya)(ya)(ya)供水:該系(xi)統實現了系(xi)統供水壓(ya)(ya)(ya)力(li)(li)穩定(ding)而(er)流量(liang)可在大范圍內連續變化，從而(er)可以保證用(yong)戶任何時候(hou)的用(yong)水壓(ya)(ya)(ya)力(li)(li)，不(bu)會(hui)出現在用(yong)水高峰期(qi)用(yong)戶用(yong)水困難(nan)的情(qing)況。在發生火災時也(ye)會(hui)為消(xiao)防(fang)管網供應消(xiao)防(fang)所需的水壓(ya)(ya)(ya)。

　　(3)安全衛生：系統實行(xing)閉(bi)環供(gong)水(shui)(shui)(shui)后(hou)，用戶的水(shui)(shui)(shui)全部由(you)管(guan)道直接供(gong)給，取(qu)消(xiao)了(le)水(shui)(shui)(shui)塔、天面(mian)水(shui)(shui)(shui)池、氣(qi)壓罐等設(she)施，避免(mian)了(le)用水(shui)(shui)(shui)的“二次污染”，取(qu)消(xiao)了(le)水(shui)(shui)(shui)池定(ding)期清理(li)的工作。

　　(4)自(zi)動(dong)(dong)運行(xing)、管(guan)理方便：新(xin)型的變頻恒壓供水系統具各(ge)了過電流(liu)、過電壓、欠(qian)電壓、斷相(xiang)、短(duan)路保(bao)(bao)護(hu)(hu)、瞬(shun)時停(ting)電保(bao)(bao)護(hu)(hu)、失速保(bao)(bao)護(hu)(hu)、低液位保(bao)(bao)護(hu)(hu)，主(zhu)泵定時輪換控(kong)制等功能。全自(zi)動(dong)(dong)控(kong)制，自(zi)動(dong)(dong)運行(xing)，泵房不設(she)崗位，只(zhi)需派人定期檢查、保(bao)(bao)養。

　　(5)實時監控：采用工控組態軟件，實時監控各個站(zhan)點，如電機的電壓、電流(liu)、工作頻率、管網壓力(li)及流(liu)量等。可(ke)無人(ren)值守，節(jie)省人(ren)力(li)。

　　恒(heng)壓(ya)(ya)供(gong)(gong)水(shui)(shui)專用(yong)變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi)(qi)系(xi)(xi)(xi)統(tong)(tong)(tong)可以(yi)跟據供(gong)(gong)水(shui)(shui)管網(wang)的(de)(de)(de)(de)(de)壓(ya)(ya)力(li)變(bian)(bian)(bian)(bian)(bian)化自(zi)動調節(jie)(jie)系(xi)(xi)(xi)統(tong)(tong)(tong)的(de)(de)(de)(de)(de)運(yun)(yun)行(xing)參(can)數，保持(chi)水(shui)(shui)壓(ya)(ya)恒(heng)定以(yi)滿(man)足(zu)用(yong)水(shui)(shui)需(xu)(xu)求，另一(yi)(yi)(yi)方(fang)面也提(ti)高(gao)(gao)(gao)了(le)用(yong)戶的(de)(de)(de)(de)(de)消(xiao)防(fang)(fang)安(an)全系(xi)(xi)(xi)數，是當今(jin)高(gao)(gao)(gao)效、安(an)全、節(jie)(jie)能型(xing)供(gong)(gong)水(shui)(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)。在21世紀以(yi)來(lai)，變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)調速(su)(su)恒(heng)壓(ya)(ya)供(gong)(gong)水(shui)(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)歷(li)經了(le)一(yi)(yi)(yi)個逐(zhu)步(bu)完善發展的(de)(de)(de)(de)(de)過(guo)程，早(zao)期的(de)(de)(de)(de)(de)單泵(beng)(beng)(beng)調速(su)(su)恒(heng)壓(ya)(ya)供(gong)(gong)水(shui)(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)逐(zhu)漸被多泵(beng)(beng)(beng)系(xi)(xi)(xi)統(tong)(tong)(tong)代(dai)替，到現在的(de)(de)(de)(de)(de)生活與(yu)消(xiao)防(fang)(fang)結合的(de)(de)(de)(de)(de)恒(heng)壓(ya)(ya)供(gong)(gong)水(shui)(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)，它的(de)(de)(de)(de)(de)投(tou)資更(geng)節(jie)(jie)省、運(yun)(yun)行(xing)效率(lv)高(gao)(gao)(gao)，成為主導產品(pin)。自(zi)從變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi)(qi)問世以(yi)來(lai)，變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)技術在各(ge)個領域(yu)得到了(le)廣泛的(de)(de)(de)(de)(de)應(ying)(ying)用(yong)。變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)調速(su)(su)恒(heng)壓(ya)(ya)供(gong)(gong)水(shui)(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)實現了(le)水(shui)(shui)泵(beng)(beng)(beng)電機(ji)(ji)的(de)(de)(de)(de)(de)軟(ruan)啟動和(he)無級調速(su)(su)，依據用(yong)戶管網(wang)壓(ya)(ya)力(li)的(de)(de)(de)(de)(de)變(bian)(bian)(bian)(bian)(bian)化自(zi)動調節(jie)(jie)系(xi)(xi)(xi)統(tong)(tong)(tong)的(de)(de)(de)(de)(de)運(yun)(yun)行(xing)參(can)數。隨著(zhu)電力(li)電子技術的(de)(de)(de)(de)(de)飛速(su)(su)發展，變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi)(qi)的(de)(de)(de)(de)(de)功(gong)能越來(lai)越強(qiang)大，充(chong)分(fen)利用(yong)變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi)(qi)內置的(de)(de)(de)(de)(de)各(ge)種功(gong)能，可以(yi)對(dui)供(gong)(gong)水(shui)(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)設(she)(she)備(bei)的(de)(de)(de)(de)(de)設(she)(she)計更(geng)加(jia)(jia)完善，降低成本等(deng)方(fang)面更(geng)有潛力(li)。流(liu)量(liang)(liang)(liang)(liang)是恒(heng)壓(ya)(ya)供(gong)(gong)水(shui)(shui)系(xi)(xi)(xi)統(tong)(tong)(tong)在使用(yong)過(guo)程中需(xu)(xu)要(yao)(yao)調節(jie)(jie)的(de)(de)(de)(de)(de)主要(yao)(yao)參(can)數。當用(yong)水(shui)(shui)量(liang)(liang)(liang)(liang)較低時(shi)(shi)(shi)，變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi)(qi)控(kong)制一(yi)(yi)(yi)號(hao)(hao)泵(beng)(beng)(beng)機(ji)(ji)調速(su)(su)運(yun)(yun)行(xing);當用(yong)水(shui)(shui)量(liang)(liang)(liang)(liang)增加(jia)(jia)時(shi)(shi)(shi)控(kong)制器(qi)(qi)將一(yi)(yi)(yi)號(hao)(hao)泵(beng)(beng)(beng)機(ji)(ji)轉到工頻(pin)(pin)運(yun)(yun)行(xing)，而以(yi)變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi)(qi)控(kong)制二(er)號(hao)(hao)泵(beng)(beng)(beng)機(ji)(ji)調速(su)(su)運(yun)(yun)行(xing);當用(yong)水(shui)(shui)量(liang)(liang)(liang)(liang)更(geng)大時(shi)(shi)(shi)控(kong)制器(qi)(qi)和(he)變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi)(qi)按同(tong)樣(yang)方(fang)法對(dui)二(er)號(hao)(hao)和(he)三號(hao)(hao)泵(beng)(beng)(beng)機(ji)(ji)進行(xing)切換操作(zuo)(zuo)。當用(yong)水(shui)(shui)量(liang)(liang)(liang)(liang)減(jian)少時(shi)(shi)(shi)，控(kong)制器(qi)(qi)按相(xiang)反方(fang)向進行(xing)操作(zuo)(zuo)。這樣(yang)系(xi)(xi)(xi)統(tong)(tong)(tong)可在全排量(liang)(liang)(liang)(liang)范圍內滿(man)足(zu)出口壓(ya)(ya)力(li)的(de)(de)(de)(de)(de)設(she)(she)定要(yao)(yao)求。樓層高(gao)(gao)(gao)度不同(tong)對(dui)應(ying)(ying)需(xu)(xu)要(yao)(yao)保持(chi)的(de)(de)(de)(de)(de)水(shui)(shui)壓(ya)(ya)值也不同(tong)。常量(liang)(liang)(liang)(liang)運(yun)(yun)行(xing)和(he)變(bian)(bian)(bian)(bian)(bian)量(liang)(liang)(liang)(liang)運(yun)(yun)行(xing)的(de)(de)(de)(de)(de)電機(ji)(ji)效率(lv)都很高(gao)(gao)(gao)，節(jie)(jie)能效果顯(xian)著(zhu)，節(jie)(jie)電率(lv)一(yi)(yi)(yi)般在30%~40%左右。三臺(tai)泵(beng)(beng)(beng)機(ji)(ji)分(fen)時(shi)(shi)(shi)共用(yong)一(yi)(yi)(yi)臺(tai)變(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)裝置，設(she)(she)備(bei)利用(yong)率(lv)高(gao)(gao)(gao)，三臺(tai)泵(beng)(beng)(beng)機(ji)(ji)可以(yi)定時(shi)(shi)(shi)輪換主泵(beng)(beng)(beng)運(yun)(yun)行(xing)減(jian)少了(le)機(ji)(ji)械磨損(sun)，延長(chang)設(she)(she)備(bei)使用(yong)壽命，維護方(fang)便。

　　單片(pian)機(ji)控制的(de)變(bian)(bian)頻(pin)調速生活消防恒(heng)壓供水(shui)系(xi)統采用(yong)(yong)了數字PID控制技術，使PID的(de)參數整定和(he)調整實現在(zai)線控制。通過給定壓力(li)值(zhi)與檢測(ce)的(de)實際(ji)壓力(li)值(zhi)采用(yong)(yong)PID控制，使恒(heng)壓供水(shui)專(zhuan)用(yong)(yong)變(bian)(bian)頻(pin)器系(xi)統的(de)輸(shu)出(chu)變(bian)(bian)化快(kuai)速、穩定。