基于特高频无线智能传感器的局部放电定位法

鉴于传统有线传输的局部放电监测系统需要铺设信号传输线,安装维护工作量大。研制了利用无线传感网络技术的UHF无线智能传感器。同时为克服现有基于时延的UHF局部放电定位技术所带来的昂贵硬件开销等问题,提出了基于信号幅值强度分布的局部放电定位方法,具有低硬件成本及易实现性的特点,能很好的适应性复杂空间环境的影响。试验结果表明,平均定位误差为1.009 m,59%的定位误差低于1 m,定位方差也较小,具有很好的推广应用价值。

Partial Discharge Localization Based on UHF Wireless Smart Sensors

Considering that the partial discharge (PD) detection system for traditional wire transmission requires huge workload of installation and maintenance due to inevitable laying of signal transmission lines.In this paper, a smart wireless UHF sensor is presented on the basis of wireless sensor network technology.On the other hand, in order to avoid high cost of hardware due to present UHF partial discharge localization based on time delay, it proposes a partial discharge localization methodology based on signal amplitude intensity distribution, which, characterized through low hardware cost and easy implementation, is highly applicable to complex spatial environment.Test results show that the mean localization error is 1.009 m, with 59% of localization errors under 1m, and that its localization variance is small.Thus, it has a good value for popularization.