基于十字形阵列传感器的局放超声定位实验研究

Experimental Study of PD Ultrasonic Location Based on Cross-shaped Ultrasonic Array Sensor

局部放电超声阵列定位方法是一种将超声阵列传感器与阵列信号处理技术相结合的局放定位新方法,具有较高的可靠性和信噪比,能有效实现局放源的空间定位。实验设计研制了超声阵列传感器阵元与阵列传感器装配体,组合后得到九元和十六元的十字形超声阵列传感器,并据此搭建了一套局放定位系统。然后结合现有局放超声阵列定位方法,开展了大量的局放定位实验研究。结果表明,局放定位系统可以有效实现对局放源的空间定位,满足工程需要。

The PD ultrasonic array location method is a new method combined ultrasonic array sensorwith array signal processing technology. This method has high reliability and signal-to-noise ratio, and itcan locate the PD sources effectively. The nine arrays and sixteen arrays cross-shaped ultrasonic arraysensors were obtained by assembling ultrasonic array sensor element and array sensor assembly that wedesigned and developed, and accordingly a set of PD location system was set up. Then a large numberof PD location experiments were carried out combined with the existing PD ultrasonic array locationmethods. The results show that the PD location system is effective to locate PD source and satisfy theproject needs.