标题:
高压电气设备局部放电表征信息提取研究Research on Partial Discharge Characterization Information Extraction of High Voltage Electrical Equipment
作者:
曾锦河, 徐卫东, 周文文, 刁庆宪
关键字:
局部放电, 表征信息, Simulink仿真, 放电模型Partial Discharge, Characterization Information, Simulink Simulation, Discharge Model
期刊名称:
《Advances in Energy and Power Engineering》, Vol.4 No.6, 2016-12-02
摘要:
针对现有局部放电主要集中在去噪和识别研究，对局部放电过程中产生的表征信息却鲜有探讨。解决局部放电表征信息提取的问题。提取出正负半周放电次数比值、放电次数、相邻放电幅值比值以及相邻放电时间间隔等7项指标，通过检测表征信息可以反映出不同的局部放电状态，对于研究局部放电严重程度有着重要作用。基于simulink平台搭建局部放电试验电路，通过实验产生的局放波形，提取出多种局放表征信息，更加详尽地描述局部放电的发生机理，为后续局部放电严重程度评估提供了理论基础。
For the existing partial discharge mainly concentrated on the de-noising and identification re-searches, the partial discharge of the process of characterization information is rarely discussed. The problem of partial discharge representation information extraction is solved. There are 7 in-dicators extracted that the ratio of the number of positive and negative half cycles, the number of discharges, the ratio of the adjacent discharge amplitude and the interval between adjacent dis-charges. It is very important to study the mechanism of the partial discharges. Basing on the sim-ulink platform builds up a partial discharge test circuit. Through the partial discharge waveform generated by the experiment, a variety of partial discharge characterization information is obtained. The mechanism of partial discharge is described in more detail. It provides the theoretical basis for the evaluation of the PD severity.