科遠(yuǎn)DCS在大型火力發(fā)電機(jī)組熱工自動(dòng)化中的應(yīng)用
在火電廠自動(dòng)化控制領(lǐng)域，科遠(yuǎn)股份作為國(guó)內(nèi)知名的DCS設(shè)備供應(yīng)商，以十多年電力行業(yè)成熟的熱控和電氣工程經(jīng)驗(yàn)，針對(duì)大型火力發(fā)電機(jī)組自動(dòng)化的全面需求，科遠(yuǎn)股份不僅提供分散控制系統(tǒng)(DCS)，輔助車間(水、灰渣、煤、脫硫和空調(diào))程序控制系統(tǒng)、熱控盤臺(tái)柜箱盒、工業(yè)電視監(jiān)控、變頻控制、到廠級(jí)監(jiān)控信息系統(tǒng)(SIS)、虛擬DCS仿真系統(tǒng)、分布式能源計(jì)量監(jiān)控系統(tǒng)的熱工自動(dòng)化完整產(chǎn)品鏈，而且提供從方案設(shè)計(jì)、產(chǎn)品供貨、現(xiàn)場(chǎng)調(diào)試和技術(shù)培訓(xùn)在內(nèi)的熱工自動(dòng)化完整服務(wù)鏈，為電力企業(yè)提供全套的熱工自動(dòng)化完整解決方案。
科遠(yuǎn)DCS在大型火力發(fā)電機(jī)組熱工自動(dòng)化中的應(yīng)用
實(shí)現(xiàn)的功能
科遠(yuǎn)控制系統(tǒng)在大型機(jī)組中實(shí)現(xiàn)鍋爐、汽機(jī)及其輔屬設(shè)備、輔機(jī)冷卻水系統(tǒng)、發(fā)變組及廠用電、輔助車間(水、灰、煤)和脫硫等的監(jiān)視及控制。
具體功能包括：
數(shù)據(jù)采集系統(tǒng)(DAS)
模擬量控制系統(tǒng)(MCS)
順序控制系統(tǒng)(SCS)
爐膛安全監(jiān)視系統(tǒng)(FSSS)
電氣發(fā)變組及廠用電系統(tǒng)(ECS)
旁路控制系統(tǒng)(BPS)
汽輪機(jī)數(shù)字電液調(diào)節(jié)系統(tǒng)(DEH)
汽輪機(jī)緊急跳閘保護(hù)系統(tǒng)(ETS)
給水泵汽輪機(jī)控制系統(tǒng)(MEH)
大型機(jī)組自動(dòng)化解決方案主要技術(shù)特點(diǎn)
隨著日新月異的計(jì)算機(jī)技術(shù)、通信技術(shù)、控制技術(shù)和顯示技術(shù)的發(fā)展，科遠(yuǎn)股份積極致力于開發(fā)DCS 功能以實(shí)現(xiàn)火電廠生產(chǎn)效益最大化，使火電廠在分散控制系統(tǒng)投資得到良好回報(bào)，主要技術(shù)特點(diǎn)和功能：
◆既滿足特別快速的控制需求，例如ETS、MFT 等要求執(zhí)行速度在50mS以內(nèi)的保護(hù)系統(tǒng)，又可以通過控制系統(tǒng)靈活的擴(kuò)展功能，滿足大型系統(tǒng)的應(yīng)用需要。
◆DPU具有多任務(wù)分配功能，根據(jù)數(shù)據(jù)處理要求和控制功能要求對(duì)DPU處理周期進(jìn)行不同任務(wù)分配，合理利用DPU資源。
◆圖紙化組態(tài)方式，直接輸出SAMA圖和邏輯圖。
◆ 提供Modbus RTU ，Modbus TCP，Profibus DP，HART 等各種現(xiàn)場(chǎng)總線通訊接口，能夠?qū)⒅С脂F(xiàn)場(chǎng)總線的變送器、執(zhí)行機(jī)構(gòu)、電氣保護(hù)裝置等設(shè)備直接用通訊接入DCS ，而無需中間轉(zhuǎn)換環(huán)節(jié)。
◆ 針對(duì)大型火電廠的控制需求，開發(fā)了專業(yè)的熱工自動(dòng)化控制模塊。
◆ 提供了在線組態(tài)功能，能夠?qū)崟r(shí)修改控制組態(tài)，而不影響相關(guān)控制器其它控制邏輯的正常運(yùn)行。
◆ 提供調(diào)節(jié)系統(tǒng)整定參數(shù)優(yōu)化算法，既保證系統(tǒng)的快速響應(yīng)，又避免系統(tǒng)震蕩，進(jìn)一步提高調(diào)節(jié)控制品質(zhì)和精度。
◆結(jié)合電廠生產(chǎn)管理系統(tǒng)的需要，開發(fā)了專用的SIS 接口，確保在向SIS 系統(tǒng)提供數(shù)據(jù)時(shí)保護(hù)DCS 的安全。
◆ 提供了虛擬DCS仿真技術(shù)，DCS 系統(tǒng)在出廠前可經(jīng)過嚴(yán)格的仿真機(jī)調(diào)試，即向用戶提供的DCS 就如經(jīng)過了實(shí)際運(yùn)行，極大地提高了出廠質(zhì)量和方便操作員培訓(xùn)，提高操作水平。
控制系統(tǒng)配置
工程師站：1臺(tái)，操作員站5臺(tái)，SIS接口機(jī)1臺(tái)，報(bào)警打印機(jī)1臺(tái)，記錄打印機(jī)2臺(tái)，網(wǎng)絡(luò)打印機(jī)1臺(tái)，工程師站打印機(jī)1臺(tái)，等離子大屏1套，GPS 1套。
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