Results 221 to 230 of about 11,373,640 (309)

Robust Open-Circuit Fault Diagnosis for PMSM Drives Using Wavelet Convolutional Neural Network With Small Samples of Normalized Current Vector Trajectory Graph

IEEE transactions on industrial electronics (1982. Print), 2023
Open-circuit fault is one of the most common faults in permanent-magnet synchronous machine (PMSM) drives. The open-circuit fault can cause the obvious change of stator currents of the PMSM.
J. Hang, Xiaoman Shu, Shichuan Ding, Yourui Huang   +3 more
semanticscholar   +1 more source

Machine Learning-Based Fault Diagnosis for Single- and Multi-Faults in Induction Motors Using Measured Stator Currents and Vibration Signals

IEEE transactions on industry applications, 2019
In this paper, a practical machine learning-based fault diagnosis method is proposed for induction motors using experimental data. Various single- and multi-electrical and/or mechanical faults are applied to two identical induction motors in lab ...
M. Z. Ali, Md. Nasmus Sakib Khan Shabbir, Xiaodong Liang, Yu Zhang, Tingbiao Hu   +4 more
semanticscholar   +1 more source

A Novel Fault Diagnosis Scheme Based on Local Fault Currents for DC Microgrids

IEEE Transactions on Power Delivery
The diversity of line fault types, the uncertainty of fault resistances, the limitation of available fault information, and the similarity of positive pole currents under different work conditions challenge the fault diagnosis of DC microgrids.
Weiwei Li, Hua Han, Yao Sun, Shimiao Chen, Hongyi Liu, Xinlong Zheng, Yonglu Liu, Jin Zhao   +7 more
semanticscholar   +1 more source

Random forest based intelligent fault diagnosis for PV arrays using array voltage and string currents

Energy Conversion and Management, 2018
With the rapid growth of installed capacity of photovoltaic power systems, status monitoring and fault diagnosis of PV arrays becomes increasingly important for improving the energy conversion and maintenance efficiency.
Zhicong Chen, F. Han, Lijun Wu, Jinling Yu, Shuying Cheng, P. Lin, Huihuang Chen   +6 more
semanticscholar   +1 more source

Fault-Current Measuring Device

Transactions of the American Institute of Electrical Engineers, 1946
IN electric power system operation numerous problems are encountered in analyzing the results of short circuits and in the physical location of the trouble. Some devices now available for analyzing short circuits in a-c circuits are the oscillograph, the annunciator ammeter, and a magnetic link device requiring rectifiers.
openaire   +1 more source

IGBT Fault Current Limiting Circuit

IEEE Industry Applications Magazine, 1995
Circuits are proposed which, by limiting the fault current magnitude, extends the short-circuit withstand time of high-efficiency (high-gain) IGBTs (insulated-gate bipolar transistors). Limiting of the fault current magnitude also results in reduced turn-off voltage transients, a desirable byproduct, especially for higher current modules. Moreover, the
R. Chokhawala, G. Castino
openaire   +1 more source

Multicell Fault Current Limiter

IEEE Transactions on Industrial Electronics, 2014
A multicell fault current limiter (MCFCL) is proposed in this paper. The MCFCL is composed of multiple fault current limiting cells. Each fault current limiting cell consists of a fault current limiting inductor and a power electronic module. The proposed MCFCL has the flexibility in expanding the operation voltage by increasing the number of fault ...
Wenyong Guo, Liye Xiao, Shaotao Dai, Zhifeng Zhang, Tao Ma, Yuanhe Li, Xi Xu   +6 more
openaire   +1 more source

Superconducting fault current limiters

IEE Colloquium on High Tc Superconducting Materials as `Magnets', 1995
Fault current limiters (FCLs), superconducting or otherwise, have the potential to reduce fault levels on electricity power networks, and may ultimately lead to lower rated components (i.e. cheaper) being used, or to increased capacity on existing systems.
openaire   +2 more sources

Cross-Forming Control and Fault Current Limiting for Grid-Forming Inverters

IEEE transactions on power electronics
This article proposes a “cross-forming” control concept for grid-forming inverters operating against grid faults. Cross-forming refers to voltage angle forming and current magnitude forming.
Xiuqiang He, Maitraya Avadhut Desai, Linbin Huang, F. Dörfler   +3 more
semanticscholar   +1 more source

Superconducting fault current limiters

IEEE Power Engineering Review, 2000
Events in the power utility industry, such as deregulation, demands for better power quality and reliability, the advent of high temperature superconductivity, and the push to use technology to realize greater profits, have renewed interest in fault current limiters (FCL).
openaire   +1 more source