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1771-DA

發(fā)布者：工控備件發(fā)布時(shí)間：2019-08-14 14:39:21 訪問(wèn)次數(shù)：290

1771-DA現(xiàn)貨 in stock! 歡迎來(lái)電咨詢~！！

1771-DA

且無(wú)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(guó)優(yōu)先開(kāi)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(jí)改造：從有人值守、少人值守，直至無(wú)人值守;從水利信息自動(dòng)化到無(wú)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(lè)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(duì)象設(shè)計(jì)，采用分層分布、開(kāi)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(jí)控制單元)一般由集成商提供�，F(xiàn)地層又稱現(xiàn)地控制單元(LCU)，具備保護(hù)、測(cè)量及控制等所有功能，并遵循保護(hù)相對(duì)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(kāi)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(lái)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(wú)論是安裝公司還是甲方技術(shù)人員，對(duì)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(duì)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(duì)于設(shè)計(jì)遺漏造成現(xiàn)場(chǎng)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(kāi)發(fā)環(huán)境，全中文界面，支持IEC61131-3規(guī)范的編程語(yǔ)言，通過(guò)SFC(順序功能圖)編程語(yǔ)言形象化的顯示開(kāi)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(duì)于編程調(diào)試人員簡(jiǎn)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(chǎng)快速布線，無(wú)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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1771-DA

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來(lái)源：工控備件

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