火力發(fā)電廠主輔機(jī)設(shè)備“單點(diǎn)保護(hù)”可靠性提升研究

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［摘要］通過(guò)從增加兩臺(tái)機(jī)組重要輔機(jī)冗余保護(hù)測(cè)點(diǎn)，優(yōu)化重要輔機(jī)單點(diǎn)保護(hù)控制邏輯；獨(dú)立開(kāi)列采用同一根電纜的多個(gè)主保護(hù)測(cè)點(diǎn)及信號(hào)電纜；重新分配在同一塊卡件、同一個(gè)支線的保護(hù)測(cè)點(diǎn)等措施，2021年中煤哈密發(fā)電有限公司主輔機(jī)設(shè)備熱工保護(hù)可靠性得到持續(xù)提升，為機(jī)組的安全穩(wěn)定運(yùn)行保駕護(hù)航。

［關(guān)鍵詞］保護(hù)；可靠性；優(yōu)化；冗余；單點(diǎn)保護(hù)

［中圖分類號(hào)］TM621.7［文獻(xiàn)標(biāo)志碼］A［文章編號(hào)］1001-523X （2022）08-0100-03

Reliability Improvement of "Single Point Protection" of Main and Auxiliary Equipment in Thermal Power Plants

Zhang Guo-kun，Dong Li-jiang

[Abstract]By adding redundant protection measuring points of important auxiliary machines of two units，the singlepoint protection control logic of important auxiliary machines is optimized；multiple main protection measuring points and signal cables using the same cable are listed independently；In 2021，the reliability of thermal protection of the main and auxiliary equipment of China Coal Hami Power Generation Co.，Ltd. will be continuously improved，escorting the safe and stable operation of the unit.

[Keywords]protection；reliability；optimization；redundancy；single point protection

1概述

熱控系統(tǒng)的可靠性不高最直接的體現(xiàn)就是保護(hù)誤動(dòng)與拒動(dòng)。（剩余4116字）