水(shui)(shui)(shui)電阻_水(shui)(shui)(shui)阻柜_水(shui)(shui)(shui)電阻起(qi)(qi)動(dong)柜_高壓水(shui)(shui)(shui)電阻軟(ruan)起(qi)(qi)動(dong)柜_高壓液態軟(ruan)起(qi)(qi)動(dong)的(de)(de)一(yi)個(ge)重點價(jia)值(zhi)就(jiu)是(shi)(shi)品牌(pai)價(jia)值(zhi)，品牌(pai)價(jia)值(zhi)的(de)(de)來源是(shi)(shi)多方面(mian)的(de)(de)，根本(ben)的(de)(de)一(yi)點就(jiu)是(shi)(shi)消費(fei)者(zhe)認可但是(shi)(shi)又超越消費(fei)者(zhe)的(de)(de)自身價(jia)值(zhi)，包括品牌(pai)形象、品牌(pai)感(gan)知(zhi)力(li)和品牌(pai)文(wen)化等。提升品牌(pai)的(de)(de)感(gan)知(zhi)力(li)是(shi)(shi)一(yi)個(ge)品牌(pai)價(jia)值(zhi)根本(ben)的(de)(de)體現，如何(he)提升品牌(pai)的(de)(de)感(gan)知(zhi)力(li)，生產(chan)水(shui)(shui)(shui)電阻_水(shui)(shui)(shui)阻柜_水(shui)(shui)(shui)電阻起(qi)(qi)動(dong)柜_高壓水(shui)(shui)(shui)電阻軟(ruan)起(qi)(qi)動(dong)柜_高壓液態軟(ruan)起(qi)(qi)動(dong)產(chan)品的(de)(de)湖(hu)北盛州機電成套(tao)設(she)備(bei)有限公司，總結了(le)以下幾點：

，上(shang)海變(bian)(bian)(bian)頻(pin)器，水(shui)電(dian)(dian)(dian)阻(zu)(zu)(zu)_水(shui)阻(zu)(zu)(zu)柜(ju)(ju)_水(shui)電(dian)(dian)(dian)阻(zu)(zu)(zu)起(qi)(qi)(qi)動(dong)(dong)(dong)(dong)柜(ju)(ju)_高(gao)壓水(shui)電(dian)(dian)(dian)阻(zu)(zu)(zu)軟(ruan)(ruan)起(qi)(qi)(qi)動(dong)(dong)(dong)(dong)柜(ju)(ju)_高(gao)壓液態軟(ruan)(ruan)起(qi)(qi)(qi)動(dong)(dong)(dong)(dong)產(chan)(chan)品定(ding)位務(wu)必要清(qing)晰。在(zai)當前(qian)軟(ruan)(ruan)起(qi)(qi)(qi)動(dong)(dong)(dong)(dong)競爭紅海中，伴隨著大(da)量(liang)的(de)(de)(de)(de)新品的(de)(de)(de)(de)夭折(zhe)同(tong)(tong)時也會有(you)大(da)量(liang)的(de)(de)(de)(de)新品誕(dan)生，華邦變(bian)(bian)(bian)頻(pin)器，在(zai)這個潮(chao)(chao)起(qi)(qi)(qi)潮(chao)(chao)落的(de)(de)(de)(de)行(xing)業中，產(chan)(chan)品的(de)(de)(de)(de)定(ding)位乃是(shi)重(zhong)中之重(zhong)的(de)(de)(de)(de)事情(qing)，因(yin)為這牽(qian)扯到產(chan)(chan)品與眾不同(tong)(tong)差(cha)異化的(de)(de)(de)(de)根本(ben)(ben)，要清(qing)晰表達我是(shi)誰，以便于消費者能(neng)從(cong)浩瀚的(de)(de)(de)(de)產(chan)(chan)品中對于本(ben)(ben)品知(zhi)道(dao)。如湖北盛(sheng)州機電(dian)(dian)(dian)成套設(she)備(bei)有(you)限(xian)公司生產(chan)(chan)的(de)(de)(de)(de)水(shui)電(dian)(dian)(dian)阻(zu)(zu)(zu)_水(shui)阻(zu)(zu)(zu)柜(ju)(ju)_水(shui)電(dian)(dian)(dian)阻(zu)(zu)(zu)起(qi)(qi)(qi)動(dong)(dong)(dong)(dong)柜(ju)(ju)_高(gao)壓水(shui)電(dian)(dian)(dian)阻(zu)(zu)(zu)軟(ruan)(ruan)起(qi)(qi)(qi)動(dong)(dong)(dong)(dong)柜(ju)(ju)_高(gao)壓液態軟(ruan)(ruan)起(qi)(qi)(qi)動(dong)(dong)(dong)(dong)，變(bian)(bian)(bian)頻(pin)器是(shi)什(shen)么(me)，根據電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機起(qi)(qi)(qi)動(dong)(dong)(dong)(dong)理論，在(zai)電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機的(de)(de)(de)(de)定(ding)子回路(lu)中串入一適(shi)當的(de)(de)(de)(de)可(ke)變(bian)(bian)(bian)水(shui)電(dian)(dian)(dian)阻(zu)(zu)(zu)進行(xing)分壓，充分利用(yong)水(shui)電(dian)(dian)(dian)阻(zu)(zu)(zu)熱容量(liang)大(da)不會燒毀以及可(ke)調可(ke)恢復性(xing)等(deng)優良特性(xing)，通過控制系統控制傳動(dong)(dong)(dong)(dong)機構拖動(dong)(dong)(dong)(dong)電(dian)(dian)(dian)極(ji)極(ji)板運(yun)動(dong)(dong)(dong)(dong)，改變(bian)(bian)(bian)動(dong)(dong)(dong)(dong)、定(ding)極(ji)板間(jian)的(de)(de)(de)(de)距離，從(cong)而達到改變(bian)(bian)(bian)水(shui)電(dian)(dian)(dian)阻(zu)(zu)(zu)阻(zu)(zu)(zu)值的(de)(de)(de)(de)大(da)小，使水(shui)電(dian)(dian)(dian)阻(zu)(zu)(zu)阻(zu)(zu)(zu)值的(de)(de)(de)(de)變(bian)(bian)(bian)化與電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機轉差(cha)率的(de)(de)(de)(de)變(bian)(bian)(bian)化同(tong)(tong)步，達到恒(heng)電(dian)(dian)(dian)流(liu)起(qi)(qi)(qi)動(dong)(dong)(dong)(dong)的(de)(de)(de)(de)目的(de)(de)(de)(de)，并使電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機均勻加速至額定(ding)轉速，縮短起(qi)(qi)(qi)動(dong)(dong)(dong)(dong)時間(jian)。當起(qi)(qi)(qi)動(dong)(dong)(dong)(dong)完成后，星點接觸器自動(dong)(dong)(dong)(dong)投(tou)入并旁(pang)路(lu)水(shui)電(dian)(dian)(dian)阻(zu)(zu)(zu)，電(dian)(dian)(dian)動(dong)(dong)(dong)(dong)機全壓運(yun)行(xing)。

總之，我國(guo)550KV高壓開關設備(bei)有(you)大的(de)發展空(kong)間。據電力(li)(li)部(bu)門提供的(de)資(zi)(zi)料，2003年電力(li)(li)系統裝備(bei)550KVSF6斷(duan)路(lu)器164臺，而(er)2003年高壓開關行業才生產(chan)(chan)73臺，2004年也只有(you)77臺（不包括外(wai)(wai)資(zi)(zi)及合(he)(he)資(zi)(zi)企業），缺口基本為外(wai)(wai)國(guo)產(chan)(chan)品所填(tian)補。550KVGIS的(de)產(chan)(chan)量更少，變頻(pin)器生產(chan)(chan)，2003年僅(jin)生產(chan)(chan)4間隔(ge)，由于國(guo)內(nei)能(neng)力(li)(li)及裝備(bei)政(zheng)策關系，三峽(xia)左岸(an)39間隔(ge)550KVGIS全部(bu)被ABB公(gong)司中標(biao)。550KVGIS反映了一(yi)個企業的(de)綜(zong)合(he)(he)生產(chan)(chan)能(neng)力(li)(li)，它是附(fu)加值很高的(de)高科技產(chan)(chan)品。

高壓超高壓領域是國內企業提高占有率的一個重要方面。超高壓部分市場上升空間大，技術含量高，現已有引進消化的基礎，需要加大研制力度，提高技術水平，爭取在斷路器、GIS和混合技術開關設備產品方面擴大市場占有率。

基本分(fen)類單(dan)元串聯型(xing)變頻器

利德華福高壓變頻器(qi)(qi)(qi)再創新(xin)這(zhe)是近幾年才發(fa)展(zhan)起來(lai)的(de)一種電(dian)路拓撲結構，它主要(yao)由(you)輸(shu)入變壓器(qi)(qi)(qi)、功(gong)(gong)率單(dan)(dan)元和控制單(dan)(dan)元三大部(bu)分組成(cheng)。采用模塊化設(she)計，由(you)于采用功(gong)(gong)率單(dan)(dan)元相(xiang)互串聯的(de)辦法解決了高壓的(de)難(nan)題(ti)而(er)得名，可直(zhi)接驅(qu)動交流電(dian)動機，無需輸(shu)出變壓器(qi)(qi)(qi)，更不需要(yao)任(ren)何形式的(de)濾(lv)波器(qi)(qi)(qi)。

該變頻(pin)器的特點如下：

① 采用多重(zhong)化PWM方式控制，輸出(chu)電(dian)壓波(bo)形接近正弦波(bo)。

② 整流電路的多重化，脈沖數多達(da)36，功率因數高，輸入(ru)諧波(bo)小。

③ 模塊化設(she)計，結構緊(jin)湊，維(wei)護方便，增強(qiang)了產品的互換性。

④ 直接高(gao)壓輸(shu)出，無(wu)需輸(shu)出變(bian)壓器。

⑤ 極低的(de)dv/dt輸(shu)出(chu)，無需(xu)任何形式的(de)濾波(bo)器。

⑥ 采用光纖(xian)通訊技術，提(ti)高了產品的抗干擾能力和可靠性。

⑦ 功率單元自動旁通電路，能夠實現故障不停機功能。

同(tong)整(zheng)流(liu)器(qi)(qi)相反(fan)，逆變(bian)器(qi)(qi)是將直流(liu)功率(lv)變(bian)換(huan)為所(suo)要求頻率(lv)的交(jiao)流(liu)功率(lv)，以(yi)所(suo)確定(ding)的時間使6個(ge)開關(guan)器(qi)(qi)件(jian)導通、關(guan)斷就可以(yi)得到3相交(jiao)流(liu)輸出(chu)。以(yi)電(dian)壓型pwm逆變(bian)器(qi)(qi)為例(li)示出(chu)開關(guan)時間和電(dian)壓波(bo)形。

控(kong)(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)是(shi)給異步電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機供電(dian)(dian)(dian)(dian)(dian)(dian)（電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)、頻(pin)率可調）的(de)(de)(de)主(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)提(ti)供控(kong)(kong)制(zhi)信號的(de)(de)(de)回路(lu)(lu)，它有頻(pin)率、電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)(de)(de)“運算(suan)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)”，主(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)(de)“電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)(dian)(dian)(dian)流檢(jian)測電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)”，電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機的(de)(de)(de)“速度(du)檢(jian)測電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)”，將運算(suan)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)的(de)(de)(de)控(kong)(kong)制(zhi)信號進行(xing)放大(da)的(de)(de)(de)“驅(qu)動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)”，以及逆變器和電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機的(de)(de)(de)“保護電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)”組成。

（1）運算(suan)電(dian)(dian)路：將(jiang)外部的(de)速度、轉矩等指令同檢(jian)測電(dian)(dian)路的(de)電(dian)(dian)流、電(dian)(dian)壓(ya)信號進行比較運算(suan)，決定逆變器的(de)輸出電(dian)(dian)壓(ya)、頻率。

（2）電(dian)壓、電(dian)流檢(jian)測電(dian)路(lu)：與(yu)主(zhu)回(hui)路(lu)電(dian)位隔(ge)離檢(jian)測電(dian)壓、電(dian)流等。

（3）驅(qu)動(dong)電路：驅(qu)動(dong)主電路器(qi)件的電路。它與控制電路隔離使主電路器(qi)件導通、關斷。

（4）速度(du)檢(jian)測電路:以裝在異步電動機軸機上的(de)速度(du)檢(jian)測器(tg、plg等)的(de)信號(hao)(hao)為(wei)速度(du)信號(hao)(hao)，送入運算回路，根據指令和運算可(ke)使電動機按指令速度(du)運轉。

（5）保護電(dian)路：檢(jian)測主電(dian)路的電(dian)壓、電(dian)流(liu)等，當發生過載或過電(dian)壓等異常(chang)時，為了防止逆變(bian)器和異步電(dian)動機損(sun)壞，使(shi)逆變(bian)器停止工作或抑制電(dian)壓、電(dian)流(liu)值。