机床电器-成都机床电器研究所 关键词：电机智能保护；对称分量法；保护算法 [gap=609]Key words：intellective protection;symmetrical component method;protective arithmetic
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And, the equivalent current algorithm for the electric motor heat accumulation is proposed based on the symmetrical component method.
同时根据对称分量法的基本原理，提出以等效电流作为电动机热积累计算的依据的算法。
Based on symmetrical component method and linear superposition principle, the additional positive sequence network after fault is established and the matching index on fault point is defined.
该方法首先运用对称分量法和线性叠加原理建立故障后的附加正序网络并且定义了故障点的匹配指标，进而基于该指标运用遍历搜索方法寻找故障点位置。
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