摘要
电流互感器(CT)饱和是继电保护误动作的主要影响因素。利用电流互感器等值电路模型,分析了现有电流互感器饱和后二次畸变电流波形修复的方法及其不足。提出了基于差分算法的波形修复方法,并通过Matlab仿真波形修复前后的对比,验证了该方法的可行性和优越性。
The current transformer（CT） saturation is the main influence factors on the false operation of relay protection.Current transformer equivalent circuit model is used to analyze secondary distortion current waveform repair method and its deficiency after the existing current transformer is saturated.Based on difference algorithm,waveform repair method is proposed and by contrasting Matlab simulation waveform before and after the repair,the feasibility and superiority of this method were verified.
出处
《电力学报》
2014年第4期322-324,352,共4页
Journal of Electric Power
关键词
电流互感器
波形畸变
剩磁
差分算法
current transformer
distortion waveform
remanent magnetization
difference algorithm
