DS200SDCIG2AHB

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描述

DS200SDCIG2AHB
分析了電氣系統(tǒng)控制的特點(diǎn)，結(jié)合實(shí)際工程的應(yīng)用情況介紹了電氣系統(tǒng)納入DCS監(jiān)控的范圍和控制要求，并就有關(guān)DCS硬件配置、軟件功能、公用系統(tǒng)控制等問(wèn)題進(jìn)行了有益的探討，為以后同類(lèi)工程提供借鑒。
300MW及以上容量機(jī)組的熱工控制已全面采用DCS控制系統(tǒng)，逐步形成了數(shù)據(jù)采集(DAS)、模擬量控制(MCS)、順序控制(SCS)、燃燒器管理(BMS)四大系統(tǒng)。從實(shí)際運(yùn)行情況來(lái)看，DCS較好地實(shí)現(xiàn)了其控制功能，并發(fā)揮了安全經(jīng)濟(jì)、使用可靠的優(yōu)點(diǎn)，取得了良好的效果，而電氣控制仍然采用較常規(guī)的控制手段，使用盤(pán)臺(tái)上一對(duì)一硬手操方式。隨著計(jì)算機(jī)的快速發(fā)展和控制技術(shù)的不斷提高，使得機(jī)爐控制與電氣控制日益顯得不協(xié)調(diào)，控制水平也逐漸拉大。為了解決這一矛盾，有效的辦法就是將電氣納入DCS控制之中，這樣既利用DCS已成熟的分散控制技術(shù)，又能提高電氣控制水平。電氣控制納入DCS以后，可充分利用DCS的手段，使電氣防誤操作等功能實(shí)現(xiàn)更方便、更完備，并且將相關(guān)量的顯示報(bào)警與電氣設(shè)備的控制調(diào)節(jié)有機(jī)地結(jié)合起來(lái)，有效提高整個(gè)電氣控制的安全性和可靠性。
1997年7月原電力部召開(kāi)了熱工自動(dòng)化領(lǐng)導(dǎo)小組第六次擴(kuò)大會(huì)，對(duì)電氣設(shè)計(jì)如何與DCS配合提出了具體意見(jiàn)：“實(shí)現(xiàn)爐、機(jī)、電集中管理，使電廠主控室爐、機(jī)、電控制水平協(xié)調(diào)發(fā)展是必要的而且在現(xiàn)有技術(shù)和裝備條件下是可行的，可以起到省人、省主控制室面積，便于集控值班運(yùn)行的作用，而且不提高造價(jià)。領(lǐng)導(dǎo)小組要求以積極的態(tài)度加入電氣納入DCS的工程試點(diǎn)。”按此精神，九江電廠三期2×350MW、信陽(yáng)電廠一期2×300MW、益陽(yáng)電廠一期2×300MW工程電氣系統(tǒng)均納入DCS監(jiān)控?，F(xiàn)依據(jù)這幾個(gè)工程中具體實(shí)施的過(guò)程和要求，就電氣系統(tǒng)納入DCS監(jiān)控的一些有關(guān)問(wèn)題進(jìn)行分析和探討。

產(chǎn)品承諾：
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨，
保?證售后服務(wù)質(zhì)量，
優(yōu)勢(shì)價(jià)格，大量現(xiàn)貨。

主營(yíng)DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌：ABB???,AB??,GE,FOXBORO,本特利，英維思，伍德沃德，西屋，瑞恩，施耐德，西門(mén)子，摩托羅拉，安川。力士樂(lè)。ACSO，橫河等進(jìn)口品牌。 專(zhuān)業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA ? 專(zhuān)業(yè)銷(xiāo)售進(jìn)口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家

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PLC模塊，可編程控制器，CPU模塊，IO模塊，AI模塊，通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國(guó)內(nèi)實(shí)力庫(kù)存商家


選擇深圳長(zhǎng)欣，選擇放心，售后無(wú)憂大量現(xiàn)貨，當(dāng)天順豐發(fā)貨！
主營(yíng)：本特利，英維思，伍德沃德，福克斯波羅、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門(mén)子、摩托羅拉、GE發(fā)那科、安川、博世力士樂(lè)，ACSO，力士樂(lè)等各大品牌的DCS系統(tǒng)配件，機(jī)器人系統(tǒng)配件，大型伺服系統(tǒng)備件。

先介紹幾點(diǎn)經(jīng)驗(yàn)。
1、先通讀一遍“系統(tǒng)手冊(cè)”（不管能不能看懂，先了解個(gè)大概，以便學(xué)習(xí)編程時(shí)查找）；
2、由位控邏輯入手，逐漸增加定時(shí)、計(jì)數(shù)等條件，把或、與、非關(guān)系理順；
3、進(jìn)而練習(xí)整數(shù)運(yùn)算、實(shí)數(shù)運(yùn)算、類(lèi)型轉(zhuǎn)換；
4、量程轉(zhuǎn)換、PID調(diào)節(jié)回路的建立及P、I、D參數(shù)的理解（最好是有個(gè)物理回路驗(yàn)證，比如變頻器+電機(jī)+測(cè)速傳感器）；
5、循環(huán)、順序、跳轉(zhuǎn)等程序控制（盡量避免跳轉(zhuǎn)，非跳不可時(shí)也是跳的越近越好）；
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機(jī)器人配件DSQC系列和Motorola MVME系列，GE 卡件 模塊 驅(qū)動(dòng)器系列為主攻。各位電工朋友可根據(jù)自己的條件選擇適合自己的PLC品牌，由于PLC的基本框架大同小異，學(xué)會(huì)一種至于其它的學(xué)習(xí)起來(lái)也就簡(jiǎn)單了。

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