分析了综合利用电压和电流量的励磁涌流识别判据的优缺点。
The merits and demerits of the distinguishing inrush using voltage and current are researched.
励磁涌流识别一直是电力变压器差动保护中比较关注的问题。
Inrush identification is always a key problem in power transformer current differential protection.
本文提出了一种基于磁通轨迹特征的变压器励磁涌流识别方法。
In this paper, a new method of identifying magnetizing inrush currents based on features of flux locus is presented.
目前应用于实际的励磁涌流识别方法均不能很好地满足现代大型电力变压器保护的要求。
Inrush current identification methods currently being used, can't very well meet the requirements of modern large power transformer protection.
目前已有多种识别励磁涌流的方法。
At present, there are some methods of identifying inrush current.
在分析瞬时功率频谱特性的基础上，提出了一种基于瞬时功率的变压器励磁涌流和内部故障电流识别新方法。
A new method, based on the analysis of frequency spectrum of instantaneous power, for the discrimination between internal fault currents and inrush currents in transformer is proposed.
在此基础上，提出基于综合隶属度的三取二原则方式来识别涌流，提高了变压器差动保护励磁涌流闭锁的可靠性。
Using the two-out-of-three principle which is based on the integrated membership grade, this new algorithm improves the reliability of transformer protection in blocking inrush current.
提出了一种基于网格分形和自适应形态滤波器识别励磁涌流与内部故障电流的新方法。
Based on grille fractal and self-adaptive morphological filter, a novel approach to identify inrush current and internal fault current is presented.
迄今，变压器差动保护的核心问题仍然是如何准确识别励磁涌流。
So far, the core problem of transformer differential protection is still how to precisely identify the magnetizing inrush current.
由于励磁涌流的多变性和不确定性，给基本故障的识别造成困难，因而出现保护误动。
Polytrope and uncertainty of exciting surge make it difficult to identify from faults which result in malfunction of protection.
浅析浅析了目前区分变压器励磁涌流和故障电流的多种原理及存在的不足，提出了利用模糊识别原理来识别变压器励磁涌流的策略。
The paper analyses many theory of the current distinction between transformer inrush current and fault current and their problems and puts forward a method which is using the fuzzy recognition theory.
因此，正确识别励磁涌流是保证变压器差动保护可靠运行的关键。
So distinguishing between magnetizing inrush current and fault current correctly is the key to ensure transformer differential relay to operate credibly.
数字仿真结果表明，本方法可准确识别故障电流和励磁涌流，即使在空载合闸于内部故障时，保护继电器也能迅速可靠动作，避免了采用二次谐波制动导致的误动问题。
The results of the digital simulation show that the method can identify fault current and energizing inrush current precisely and makes it rapid and reliable for the protective relay to …
数字仿真结果表明，本方法可准确识别故障电流和励磁涌流，即使在空载合闸于内部故障时，保护继电器也能迅速可靠动作，避免了采用二次谐波制动导致的误动问题。
The results of the digital simulation show that the method can identify fault current and energizing inrush current precisely and makes it rapid and reliable for the protective relay to …
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