基于證據(jù)理論的智能變電站繼電保護(hù)裝置防誤方法

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中圖分類號(hào)：TM58;TQ333 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：1001-5922（2025）07-0147-05

Abstract：The conventional relay protection device inteligent substation mainly uses the dynamic analysis and judgment nodeoperation torealize theeror preventionprocess，ignoring the influence interphase side current on the error prevention result，resulting inalow tripconsistency the error prevention result.Ananti-error method for relay protection device inteligent substation was proposed based on evidence theory.Based on the three-phase current wiring mode the intelligent substation，the interphase side current was convertedand calculated，and the controllogicthe inteligentsubstation was analyzed bycombining the diffrential current andthecontrolcurrent， andthe evidence theory was introduced to fuse andanalyze the working state credibility therelay protection device，and the comprehensivecriterion hard pressure plateand st pressure plate analysis was combined to realize the error prevention processThe experimental results showed that the error prevention results obtained by the proposed method after application showed high trip consistency and high error prevention accuracy，which meets the practical application requirements relay protection devices in intellgent substations.

Key words：relay protection device；evidence theory;；relay protection error prevention;intelligent substation；substation equipment；error prevention methods

智能變電站在傳統(tǒng)變電站的基礎(chǔ)上，通過(guò)現(xiàn)代信息技術(shù)的應(yīng)用，進(jìn)一步提高了電力管理的精細(xì)化程度，發(fā)揮了更加優(yōu)質(zhì)的變換電壓、分配電能的功能。（剩余6183字）