Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Chenqingyu Zhang"'
Autor:
Lijun Zhou, Woyang Li, Yingyi Xia, Jiawei Chen, Chenqingyu Zhang, Xiaohu Cai, Lei Guo, Dongyang Wang
Publikováno v:
High Voltage, Vol 9, Iss 1, Pp 172-181 (2024)
Abstract The analysis of the eddy‐current field in the wound core widely used in the field of transformer energy conservation is taken as the theme. Adopting the homogenisation idea to consider the unique geometry of the wound core and features of
Externí odkaz:
https://doaj.org/article/e996f50b20e049d9b4768f5a13323e46
Publikováno v:
IEEE Transactions on Magnetics. 58:1-5
Publikováno v:
IEEE Transactions on Industrial Electronics. 69:9440-9450
Partial discharge (PD) online monitoring is an essential part of transformer insulation condition based maintenance and prognostics and health management (CBM/PHM) in industrial power system. In order to realize online localization of multiple PD sou
Publikováno v:
IEEE Transactions on Transportation Electrification. 6:752-761
The primary objective of evaluation of eddy-current losses is to provide a guide for optimized design of tractive transformer. It is not sensible to directly create the detailed laminations of a transformer core for analyzing the eddy-current field b
Publikováno v:
IEEE Transactions on Transportation Electrification. 6:625-634
Autotransformer (AT) is the most core power supply equipment, and overvoltage and short circuit (SC) fault may lead to winding deformation, which will have a negative impact on its insulation and even affect the operation of a train. The frequency re
Publikováno v:
IET Science, Measurement & Technology. 14:104-110
This study proposes a high-accuracy method of localising partial discharge (PD) for transformer fault diagnosis. This study aims to solve the problem of high-accuracy estimation of PD in transformers by detecting the acoustic signals. First, by combi
Publikováno v:
IEEE Transactions on Transportation Electrification. :1-1
Publikováno v:
IEEE Transactions on Magnetics. 55:1-12
The exploration for estimation of eddy-current losses is of great significance to optimize the design of the transformer. This paper provides a more accurate formula to calculate the eddy-current losses in rectangle section of electrical steel by sol
Publikováno v:
IET Electric Power Applications. 13:243-250
Multi-point grounding of the core is one of the common transformer faults. In this study, a homogenisation model based on the finite element method is developed for calculating multi-point grounding current of the transformer core. The equivalent con
Large Energy-Saving Wound Core Traction Transformer : Theoretical Modeling and Manufacturing Process
This book delves into the innovative realm of wound core transformers designed for high-voltage power grids, moving beyond the traditional laminated core structures prone to magnetic flux leakage and energy dissipation. Through a novel enclosed wound