变压器绕组局部放电定位的电磁逆时技术

IF 0.9 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Viral B. Rathod;Ganesh B. Kumbhar;Bhavesh R. Bhalja
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引用次数: 0

摘要

本文介绍了一种基于电磁时间反转(EMTR)理论的变压器绕组局部放电定位新技术。该技术包括测量绕组两端的PD信号,创建绕组的阶梯网络模型,随后进行时间反转并将测量到的PD信号回注到阶梯网络模型中。然后使用阶梯网络模型计算不同猜测PD位置(gpdl)的PD电流信号能量,并将实际PD位置识别为与最大能量集中对应的位置。最后,基于仿真的验证验证了该技术准确识别变压器绕组内局部放电位置的能力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An Electromagnetic Time Reversal Technique to Locate Partial Discharge in Transformer Winding
This letter introduces a new technique based on electromagnetic time reversal (EMTR) theory to locate partial discharge (PD) in transformer windings. The technique involves measuring PD signals at both ends of the winding, creating a ladder network model of the winding, and subsequently time-reversing and back-injecting the measured PD signals into the ladder network model. The PD current signal energy is then calculated for different guessed PD locations (GPDLs) using the ladder network model, and the actual PD location is identified as the location that corresponds to the maximum energy concentration. Ultimately, the simulation-based validation confirms the capability of the technique to accurately identify the location of PD within transformer winding.
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