一种基于形态学梯度的电流互感器饱和检测改进算法

分析了目前电流互感器(CT)饱和检测各种算法的优势和不足，提出一种基于形态学梯度的电流互感器饱和检测的改进算法。算法包括两方面：一方面，利用混合形态滤波器对信号进行滤波预处理，最大限度地去除噪声对饱和检测的影响；另一方面，利用合适的形态学算子对去噪后的信息进行暂态突变检测。仿真结果表明，该算法设计简单、计算量小，具有较强的抗噪与奇异性检测性能，可通过选择合适的结构元素准确地确定CT饱和发生与结束的时刻。

An improved algorithm for current transformer saturation detection based on morphology grade

Based on the analysis of advantages and disadvantages to current transformer(CT) detecting algorithms,an improved algorithm to detect CT saturation is presented based on morphological gradient.The algorithm includes two aspects: on the one hand,using the mixed morphological filters to remove noise;on the other hand,using the improved morphological operators to detect the transient information.Simulation results show that the algorithm has features of easy implementation and fast speed.The CT saturation occu...