SMP-E201-A1

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描述

SMP-E201-A1

電氣系統(tǒng)納入DCS控制水平及技術(shù)要求

機組整套啟動時從鍋爐點火至發(fā)電機并網(wǎng)帶初始負荷夠?qū)崿F(xiàn)全過程的自動程序控制。(當然可以設(shè)有限幾個斷點人工分析判斷決定后介入操作),或機組停機時DCS能安全停機。
機組自啟??刂频囊笫牵?br /> 機組正常起動時,當發(fā)電機達到額定轉(zhuǎn)速時,DCS將投入AVR。當發(fā)電機電壓達到額定值時,DCS將投入同期裝置。發(fā)電機與電網(wǎng)的同期是由同期裝置自動實現(xiàn),在同期過程中通過DCS控制AVR、DEH,當同期條件滿足時,向發(fā)電機斷路器發(fā)合閘指令。在同期合閘成功,發(fā)電機電負荷達到一定值之后,DCS將高壓廠用電系統(tǒng)快速從啟備變切換到高壓廠變上。
機組正常停機時,DCS控制降低機組負荷,當機組負荷降到某一定值時,DCS將高壓廠用電系統(tǒng)快速切換到啟/備變系統(tǒng)供電;當機組負荷繼續(xù)降到零,跳開主開關(guān),聯(lián)跳汽輪機(主汽門關(guān)閉),發(fā)電機滅磁。
對于廠用電源系統(tǒng)控制的要求是:
在機組啟動時通過啟/備變向廠用負荷供電;在機組正常用電時,由廠變供電并經(jīng)低壓廠變向400VMCC低壓負荷供電以啟動機組所必需的輔機;在廠用電消失時,為了保護設(shè)備和系統(tǒng)的安全,廠用電快切裝置應(yīng)快速將廠用工作負荷自動切換至啟/備變;當確認保安段母線失壓后,應(yīng)啟動事故備用柴油機供電以保證設(shè)備安全。
依據(jù)以上控制水平的要求,電氣監(jiān)控納入DCS技術(shù)的要求是:
(1)發(fā)電機系統(tǒng)能實現(xiàn)程序控制和軟手操控制使發(fā)電機由零起升速、升壓直到并網(wǎng)帶初始負荷。
(2)廠用電系統(tǒng)能按啟動/停止階段和正常運行階段的要求程序控制和軟手操來實現(xiàn)。
(3)能實時顯示和記錄上述發(fā)變組系統(tǒng)和廠用電系統(tǒng)的正常運行、異常運行和事故狀態(tài)下的各種數(shù)據(jù)和狀態(tài),并提供操作指導(dǎo)和應(yīng)急處理措施。
(4)單元機組(爐機電)實現(xiàn)全CRT監(jiān)控。

產(chǎn)品承諾:
保?證?全新原裝進口,
保?證?安全準時發(fā)貨,
保?證售后服務(wù)質(zhì)量,
優(yōu)勢價格,大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機器人系統(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,西門子,摩托羅拉,安川。力士樂。ACSO,橫河等進口品牌。 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA
? 專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家

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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? 國內(nèi)實力庫存商家


選擇深圳長欣,選擇放心,售后無憂大量現(xiàn)貨,當天順豐發(fā)貨!
主營:本特利,英維思,伍德沃德,??怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機器人系統(tǒng)配件,大型伺服系統(tǒng)備件。

先介紹幾點經(jīng)驗。
1、先通讀一遍“系統(tǒng)手冊”(不管能不能看懂,先了解個大概,以便學(xué)習(xí)編程時查找);
2、由位控邏輯入手,逐漸增加定時、計數(shù)等條件,把或、與、非關(guān)系理順;
3、進而練習(xí)整數(shù)運算、實數(shù)運算、類型轉(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(最好是有個物理回路驗證,比如變頻器+電機+測速傳感器);
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)機器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅(qū)動器系列為主攻。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)會一種至于其它的學(xué)習(xí)起來也就簡單了。