摘要
分析了感应雷击的暂态过程及其波形特征,提出了一种基于数学形态学梯度变换和相关系数的方法实现对感应雷击以及短路故障的识别。该方法具有运算速度快、对硬件配置要求低的特点,大量的Matlab仿真验证了该方法的正确性和有效性。
Indirect lightning may interfere with transient protection and lead to transient protection act mistakenly. The paper analyzes the transient process and waveform characteristics of indirect lightning stroke. Then, a method based on mathematical morphology gradient transformation and correlation coefficient is used to identify indirect lightning stroke and short - circuit fault . Calculation speed of this method is fast. In addition, the method has a low requirement for the hardware. Through a large number of Matlab simulation results, the validity and correctness of the proposed method is proved.
出处
《电力科学与工程》
2013年第3期7-11,共5页
Electric Power Science and Engineering
关键词
超高压输电线路
感应雷击
数学形态学
相关系数
EHV transmission line
indirect lightning stroke
mathematical morphology
correlation coefficient
