Redbud 工廠位于俄克拉荷馬州，擁有四臺(tái)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(kāi)始商業(yè)運(yùn)營(yíng)，配備了來(lái)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(lái)了許多挑戰(zhàn)。
OG&E 控制裝置升級(jí)項(xiàng)目經(jīng)理 Khoa Le 表示：“我們認(rèn)識(shí)到，使用多種不同的控制系統(tǒng)必然會(huì)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(dòng)化平臺(tái)，以提高所有機(jī)組的可靠性和一致性。與艾默生合作，我們?cè)谳^短的時(shí)間內(nèi)完成了這次重大的控制裝置升級(jí)，幾乎能立即感受到此次升級(jí)對(duì)運(yùn)營(yíng)產(chǎn)生積極影響！
為了解決效率低下的問(wèn)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(dòng)監(jiān)測(cè)系統(tǒng)。此外，艾默生還對(duì)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(guò)升級(jí)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(tái)機(jī)組的冷啟動(dòng)時(shí)間縮短了 25-35 分鐘。
此外，艾默生還更換了每臺(tái)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(tái)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(cè)和控制。
過(guò)去，電廠人員并未深入了解控制邏輯，只能監(jiān)控來(lái)自不同供應(yīng)商的多個(gè)過(guò)程和報(bào)警畫(huà)面。 Ovation? 系統(tǒng)將成千上萬(wàn)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(duì)電廠過(guò)程有了更清楚的了解，從而在問(wèn)題升級(jí)之前快速識(shí)別并解決問(wèn)題。
另外，由于到達(dá)現(xiàn)場(chǎng)所花的時(shí)間較長(zhǎng)、文件資料不完整以及人工收集數(shù)據(jù)，因此對(duì)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(guò)程圖形、控制圖、報(bào)警列表和趨勢(shì)，為本地操作員提供實(shí)時(shí)指導(dǎo)
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