超声自触发式在线检测的局放被动定位原理与应用研究(Ⅰ)

Theory and application study of on-line test and self-trigger ultrasonic passive locailization system for partial discharges (Ⅰ)

本工作详细描述了一种新颖的超声自触发式局放被动定位系统的硬软件实现。对声触发、在线检测的原理，实用化的时延估计方法和被动定位算法进行了初步理论探讨；最后，通过实验和工业现场测试运行，证明本系统对电力设备检测有许多独特的优点，有着重要的实用价值，本文先介绍原理和方法。

In this research, a new self-trigger ultrasonic passive localization system for partial discharges and its hardware and software realization have been described Either the;principle of ultrasonic trigger and on-line test or the useful algorithm of time delay estimation and passive localization is discussed theoretically. By means of experimental,and industrial operation,this system has been proved to have many special advantages, especially having important practical value in examination of electrical equipment,Principle and method are introduced in this paper as part I.