發(fā)布時間：2018-10-18 08:53

【摘要】：在大中型水力發(fā)電機組中,水力不平衡故障是較為常見的故障。為了實現(xiàn)對該故障的自動化判定和診斷,分析了水力不平衡故障產生的機理,闡述了水力不平衡對機組穩(wěn)定運行的影響,提出了用于辨識水力不平衡故障的指標參數(shù)和自動化辨識模型。通過多個電站的實際應用表明,該研究方法能夠實現(xiàn)由于轉輪葉道不一致、葉型不一致、葉端間隙不一致等原因造成的水力不平衡故障的自動化的檢測和診斷。該研究方法可用于水電站機組在線狀態(tài)監(jiān)測和故障診斷系統(tǒng)的設計和實現(xiàn)。
[Abstract]:Hydraulic imbalance is a common fault in large and medium hydropower units. In order to realize the automatic judgment and diagnosis of the fault, the mechanism of hydraulic imbalance fault is analyzed, and the influence of hydraulic imbalance on the stable operation of the unit is expounded. The index parameters and automatic identification model for identifying hydraulic imbalance faults are presented. The practical applications of several power stations show that the research method can realize the automatic detection and diagnosis of hydraulic imbalance faults caused by the impeller blade track inconsistency, blade shape inconsistency and blade tip clearance inconsistency. The research method can be used in the design and implementation of on-line condition monitoring and fault diagnosis system for hydropower units.
【作者單位】： 福建水口發(fā)電集團有限公司;
【分類號】：TV738

【參考文獻】

相關期刊論文 前6條

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本文編號：2278625