基于证据理论的智能变电站继电保护装置防误方法

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中图分类号：TM58;TQ333 文献标志码：A 文章编号：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

智能变电站在传统变电站的基础上，通过现代信息技术的应用，进一步提高了电力管理的精细化程度，发挥了更加优质的变换电压、分配电能的功能。（剩余6183字）