廈門莫格電氣自動化有限公司
我們提供:PLC模塊,DCS卡件,ITCC卡件,AI DI AO DO模塊
網(wǎng)絡(luò)模塊 計數(shù)模塊 適配器模塊 CPU模塊 掃描模塊
本特利3500系列卡件 Triconex模塊 HIMA模塊 ICS卡件 GE 燃機備件 艾默生DCS備件
聯(lián)系人：雷琳
24小時銷售熱線：18050035902
Q Q : 1982497648
電話：0592-6808394
傳真：0592-6514751
地址：廈門市湖里區(qū)安嶺路1012號202之二單元
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控制與操作
機組LCU可以接受上位機或LCU操作面板上的輸入命令，執(zhí)行相應(yīng)操作。機組LCU都是通過其開出繼電器的空接點去動作現(xiàn)場設(shè)備，共使用單接點形式的開出點50多點，分別作用于各種管路的電磁閥、電路的斷路器、高壓油泵、潤滑油泵、漏油箱油泵的電動機等現(xiàn)地設(shè)備輸入點。
機組的控制操作需要編寫以下主要流程：
1) 機組順序控制流程。該流程包括以下幾種工況：停機—空載；空載—發(fā)電；發(fā)電—空載；空載—停機。
2) 緊急停機流程。
3) 發(fā)電組事故報警流程。
4) 發(fā)電組事故報警及停機流程。
5) 高壓頂起油泵控制流程。
6) 潤滑油泵控制流程。
7) 漏油箱油泵控制流程。
8) 故障、事故音響處理流程。
9) 其它流程。
2.3 機組的有功和無功調(diào)節(jié)
LCU裝置對機組有功（P）、無功（Q）調(diào)節(jié)是根據(jù)LCU控制面板或主機設(shè)置的P、Q值，通過對機組的導(dǎo)葉開度和勵磁電壓進行調(diào)節(jié)，使機組按給定的P、Q值運行。對于P、Q的調(diào)節(jié)，LCU輸出的調(diào)節(jié)量采用脈寬的方式，調(diào)節(jié)脈沖均通過中間繼電器輸出給微機調(diào)速器和微機勵磁調(diào)節(jié)器，在P、Q的調(diào)節(jié)中還設(shè)立了發(fā)電機電壓、電流、P、Q負荷差等多種調(diào)節(jié)保護，確保P、Q調(diào)節(jié)在安全的范圍內(nèi)進行。PLC直接通過以太網(wǎng)與廠級網(wǎng)絡(luò)進行通訊，可確保當(dāng)現(xiàn)地LCU中操作面板出現(xiàn)故障，監(jiān)控系統(tǒng)仍能從遠方監(jiān)控所控設(shè)備（包括機組開、停機控制、增減有、無功率等）。
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IDIFIER B39840
