摘要
针对环网柜设备局部放电信号微弱且易受多因素影响导致检测灵敏度低的问题,本研究提出一种配网环保气体环网柜设备局部放电检测技术。采用罗氏线圈传感器,结合信号放大、A/D转换和数字信号处理技术,通过三层小波包分解与变分模态分解技术,有效提取并去噪局部放电信号。利用加权模糊C均值聚类算法与支持向量机,识别不同放电模式。实验证明,该技术能显著提升局部放电检测的灵敏度。
Aiming at the problem of weak partial discharge signals in environmental-friendly gas ring main unit equipment of distribution networks,which are easily influenced by multiple factors and lead to low detection sensitivity,this study proposes a partial discharge detection technology for such equipment.By utilizing Rogowski coil sensors,combined with signal amplification,A/D conversion,and digital signal processing technology,local discharge signals are effectively extracted and denoised through threelevel wavelet packet decomposition and variational mode decomposition techniques.Weighted fuzzy C-means clustering algorithm and support vector machine are employed to identify different discharge patterns.Experiments demonstrate that this technology can significantly enhance the sensitivity of partial discharge detection.
作者
郭坚定
刘朝根
Guo JianDing;Liu Chaogen(Greno(Xiamen)Switch Co.,Ltd.,Xiamen,Fujian,China,361000)
出处
《仪器仪表用户》
2024年第10期7-9,共3页
Instrumentation
关键词
配网
环保气体
环网柜
局部放电
放电检测技术
distribution network
environmental-friendly gas
ring main unit
partial discharge
discharge detection technology
