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Redbud 工廠位于俄克拉荷馬州，擁有四臺相同的一拖一機(jī)組，總發(fā)電能力為 1,230 兆瓦。該工廠于 2003 年開始商業(yè)運(yùn)營，配備了來自九家不同供應(yīng)商的控制裝置。這種拼湊而成的控制系統(tǒng)為工廠帶來了許多挑戰(zhàn)。

OG&E 控制裝置升級項(xiàng)目經(jīng)理 Khoa Le 表示：“我們認(rèn)識到，使用多種不同的控制系統(tǒng)必然會導(dǎo)致效率低下。我們希望將這些不同的控制系統(tǒng)整合到一個(gè)標(biāo)準(zhǔn)的自動化平臺，以提高所有機(jī)組的可靠性和一致性。與艾默生合作，我們在較短的時(shí)間內(nèi)完成了這次重大的控制裝置升級，幾乎能立即感受到此次升級對運(yùn)營產(chǎn)生積極影響?！?br />
為了解決效率低下的問題，艾默生用集成的  Ovation? 解決方案取代了汽輪機(jī)控制裝置，以及靜態(tài)勵(lì)磁和振動監(jiān)測系統(tǒng)。此外，艾默生還對汽輪機(jī)進(jìn)行了復(fù)雜的機(jī)械改造，以消除單點(diǎn)故障并提供更準(zhǔn)確和快速的響應(yīng)。通過升級和調(diào)整的汽輪機(jī)控制裝置以及冗余的機(jī)械設(shè)計(jì)，汽輪機(jī)可以更快地達(dá)到設(shè)定值，從而將每臺機(jī)組的冷啟動時(shí)間縮短了 25-35 分鐘。

此外，艾默生還更換了每臺機(jī)組的余熱利用蒸汽發(fā)電機(jī)和電廠輔助控制裝置，并將輔助鍋爐、水處理、污水去離子和風(fēng)道燃燒器控制裝置集成到  Ovation? 系統(tǒng)中。每臺機(jī)組的  Ovation? 系統(tǒng)與 OEM 燃?xì)廨啓C(jī)控制裝置接合在一個(gè)網(wǎng)絡(luò)上，從而實(shí)現(xiàn)監(jiān)測和控制。

過去，電廠人員并未深入了解控制邏輯，只能監(jiān)控來自不同供應(yīng)商的多個(gè)過程和報(bào)警畫面。 Ovation? 系統(tǒng)將成千上萬的控制儀表縮減到數(shù)百個(gè)，并在整個(gè)電廠實(shí)施一致的邏輯、圖形和報(bào)警理念，使員工對電廠過程有了更清楚的了解，從而在問題升級之前快速識別并解決問題。

另外，由于到達(dá)現(xiàn)場所花的時(shí)間較長、文件資料不完整以及人工收集數(shù)據(jù)，因此對電廠進(jìn)行故障排查可能需要數(shù)天時(shí)間。采用艾默生  Ovation? 企業(yè)數(shù)據(jù)解決方案后，OG&E 公司和電廠人員可以遠(yuǎn)程查看實(shí)時(shí)或歷史的過程圖形、控制圖、報(bào)警列表和趨勢，為本地操作員提供實(shí)時(shí)指導(dǎo)

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