摘要
提出利用S变换暂态能量和对单相短路、故障性雷击、非故障性雷击与电容投切等4种常见暂态信号进行分类识别的方法。基于PSCAD/EMTDC的500 kV输电线路仿真模型,产生4种暂态信号,然后利用S变换暂态能量和对各个暂态信号不同频带的暂态能量和进行提取,通过分析比较,得出分类识别的判据。算例验证,该方法具有准确率高、结果直观等优点。
The recognition method for 4 common transient signals： single-phase short circuit, fault lightning strike, non-fault lightning strike, capacitor switch is proposed based on S transform. These 4 transient signals are generated at 500 kV transmission line simulation model by PSCAD/EMTDC, and then the sum of transient energies of different frequency are picked up from these singles by using S transform, and recognition criterions are obtained by analysis and comparison. Examples results show that the proposed method is accurate and intuitionistic.
出处
《广西电力》
2011年第5期15-18,39,共5页
Guangxi Electric Power
关键词
暂态信号
S变换
输电线路
识别
transient signal, S transform, transmission line, recognition
