892A-25259
    發(fā)布者:fzjfx0001  發(fā)布時(shí)間:2019-08-16 20:58:29  訪問次數(shù):186

    892A-25259現(xiàn)貨 in stock! 歡迎來電咨詢~!!

    892A-25259


    且無污染、運(yùn)行成本低、高效靈活、便于進(jìn)行電力調(diào)峰等優(yōu)點(diǎn),成為各國優(yōu)先開發(fā)的首選能源。
      隨著工業(yè)自動(dòng)化的發(fā)展,傳統(tǒng)水電站的運(yùn)行模式也亟待升級改造:從有人值守、少人值守,直至無人值守;從水利信息自動(dòng)化到無人值守水電站,再到連接智能變電站,這將是智慧電力的重要發(fā)展方向。
      四川樂山電力公司旗下的兩個(gè)水電站:象鼻嘴電站(裝機(jī)容量7000KW)和月兒山電站(裝機(jī)容量1500KW),都是混流式水電站(混流即水流是徑向流入水輪機(jī),軸向流出,一般中高高度水頭,即20-700M水頭都用這種類型的水輪機(jī))。
    水電廠計(jì)算機(jī)監(jiān)控系統(tǒng)目前均按對象設(shè)計(jì),采用分層分布、開放式網(wǎng)絡(luò)系統(tǒng)結(jié)構(gòu),具有典型的三層結(jié)構(gòu):主控層、通信層、現(xiàn)地層。 主控層、通信層(廠級控制單元)一般由集成商提供。現(xiàn)地層又稱現(xiàn)地控制單元(LCU),具備保護(hù)、測量及控制等所有功能,并遵循保護(hù)相對獨(dú)立和動(dòng)作可靠性的原則,且不依賴于通訊網(wǎng)絡(luò)和上位機(jī)管理層,能獨(dú)立完成監(jiān)控和保護(hù)的功能,符合部分標(biāo)準(zhǔn)要求。象月水電站的現(xiàn)地控制LCU都是由菲尼克斯電氣提供,每個(gè)機(jī)組LCU應(yīng)用菲尼克斯電氣大型PLC-AXC3050 2套;公用及開關(guān)站LCU采用菲尼克斯電氣中型PLC-AXC1050 1套;輔機(jī)(泵站)LCU采用菲尼克斯電氣小型PLC-INLINE131 4套;SOE模塊采用菲尼克斯電氣高速AXLDI32點(diǎn)模塊;現(xiàn)地LCU與主控層均采用MODBUS-TCP通訊協(xié)議。
    象鼻嘴水電站處于山區(qū),施工作業(yè)面小;來水量受季節(jié)變化影響大,工程實(shí)施時(shí)適逢春季,因此,施工進(jìn)度要求比較緊急。得益于菲尼克斯電氣產(chǎn)品與技術(shù)的特性,電氣工程技術(shù)人員從了解工藝到協(xié)助集成商編程調(diào)試、與上位聯(lián)調(diào)直至電站并網(wǎng)成功,只用了15天時(shí)間,無論是安裝公司還是甲方技術(shù)人員,對菲尼克斯都贊賞有加。
      菲尼克斯電氣的控制系統(tǒng)非常適合集成商在水電站建設(shè)中使用:
      1、菲尼克斯電氣CPU模塊,集成了電源、網(wǎng)口、以及多種網(wǎng)絡(luò)協(xié)議等硬軟件功能,這種一體化的設(shè)計(jì),可以省去很多選型、設(shè)計(jì)等麻煩,減少中間環(huán)節(jié),提高設(shè)計(jì)與應(yīng)用可靠性;
      2、本項(xiàng)目所使用的三種不同性能的控制器均集成Modbus TCP client/server功能,可十分方便與水電行業(yè)主流的計(jì)算機(jī)監(jiān)控上位平臺(tái)通訊。同時(shí)對于機(jī)組CPU控制器,比如3050控制器,它可以與多達(dá)32個(gè)設(shè)備(包括上位與其他設(shè)備)進(jìn)行Modbus TCP通訊,利于集成方案設(shè)計(jì);
      3、強(qiáng)大的IO擴(kuò)展功能,可以擴(kuò)展到63個(gè),因此,對于設(shè)計(jì)遺漏造成現(xiàn)場需要增加IO點(diǎn)數(shù),可以輕松解決;
      4、本項(xiàng)目中使用的PC WORX編程開發(fā)環(huán)境,全中文界面,支持IEC61131-3規(guī)范的編程語言,通過SFC(順序功能圖)編程語言形象化的顯示開機(jī)、停機(jī)等流程狀態(tài),一目了然。另外,PC WORX還提供其他便捷功能,比如:監(jiān)控/調(diào)試接口用于顯示變量狀態(tài)、覆蓋/強(qiáng)制變量或配方;斷點(diǎn),單步;實(shí)時(shí)邏輯分析器;程序如修改,修改后可在線下進(jìn)行安裝等,對于編程調(diào)試人員簡單易學(xué)、直觀方便;
      5、系統(tǒng)IO模塊,均采用直插式聯(lián)結(jié),既可以預(yù)接線,也可以現(xiàn)場快速布線,無需轉(zhuǎn)接端子,輕松、省力、可靠。
      6、IT Powered:支持各種IT技術(shù),實(shí)現(xiàn)IT與OT的融合。

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    892A-25259

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