基于极限学习机的小电流接地故障融合选线Small Current Grounding Fault Line Selection Based on Limit Learning Machine
梁喆,杨铁梅
摘要(Abstract)：
针对单一选线无法实现适应各种单相接地故障的情况,提出基于极限学习机的融合选线方法。首先在MATLAB中建立110/35 kV的小电流系统模型,用小波包变换算法提取特征分量。采用零序导纳法、自适应陷波法、改进锁相环的5次谐波法分析在不同接地系统、不同接地电阻等故障类型发生故障时的暂态特征,利用极限学习机方法进行融合选线,并与PNN融合选线方法进行对比。实验证明本算法可实现100%正确选线,且选线时间短。
关键词(KeyWords)： 小电流系统;单相接地故障;融合选线;极限学习机
基金项目(Foundation): 国家青年基金(F030507);; 国家自然基金(U1510112);; 山西重点实验室开放课题(MEI201504)
作者(Author): 梁喆,杨铁梅
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