Results 251 to 260 of about 181,213 (309)

Short-circuit fault analysis on microgrid

2015 International Conference on Renewable Energy Research and Applications (ICRERA), 2015
This paper presents, a fault simulation on a microgrid consisting of a wind turbine, a solar panel and fuel cell. The power produced by different sources is combined on the same DC bus and converted to AC form using a three phase inverter in order to transfer it to 3-phase AC load. The system takes some precautions against some undesired situations. In
IRMAK, ERDAL, GÜLER, NAKİ, ISSI, FATİH, BAYINDIR, RAMAZAN   +3 more
openaire   +2 more sources

Locating short-circuit faults in underground networks

2011 IEEE Industry Applications Society Annual Meeting, 2011
In power distribution networks, impedance short-circuit faults are hard to detect in their incipient stage, as the fault currents may not be large enough to trip circuit breakers. In this paper, we summarize our research activities in short-circuit fault localization in underground power distribution networks. First, a simulation testbed was built.
Jin Zhou 0005, Bulent Ayhan, Chiman Kwan, O. D. Limaye, M. Lu, W. Lee   +5 more
openaire   +1 more source

On the Numerical Complexity of Short-Circuit Faults in Logic Networks

IEEE Transactions on Computers, 1985
The problem of estimating the number of all possible multiple short circuit faults in a network with a given number of lines is settled in this correspondence. A new combinatorial number, namely an associated Bell number B'(r), which enumerates the number of possible partitions of a set \(\{\) 1,2,\(\cdot \cdot \cdot,r\}\) with certain constraints, is ...
Bhabani P. Sinha, Bhargab B. Bhattacharya   +1 more
openaire   +2 more sources

Short-Circuit Fault Detection Observer Design in a PMSM

IEEE Transactions on Aerospace and Electronic Systems, 2018
This paper explores detecting interturn short-circuit (ITSC) faults in surface permanent magnet synchronous machines (SPMSM) while simultaneously estimating the (typically large) fault current to determine if operation is within thermal limits. ITSC faults are caused by electrical insulation failures in the stator windings and can lead to shorts to ...
Richard T. Meyer, Raymond A. DeCarlo, Scott C. Johnson, Steven D. Pekarek   +3 more
openaire   +1 more source

Severity Estimation of Interturn Short Circuit Fault for PMSM

IEEE Transactions on Industrial Electronics, 2019
This paper presents a novel method to estimate the number of shorted turns in a permanent magnet synchronous machine (PMSM) following the detection of interturn short-circuit (ITSC) fault and its location. In this proposed method, PMSM is excited through a low sinusoidal voltage at standstill condition to obtain the winding resistance and synchronous ...
Yuan Qi, Emine Bostanci, Mohsen Zafarani, Bilal Akin   +3 more
openaire   +1 more source

A novel fault detection circuit for short-circuit faults of IGBT

2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2011
This paper proposed a novel fault detection circuit comparing the gate voltage of IGBT. The proposed scheme is operated to protect IGBT under short-circuit faults such as hard switch-fault (HSF). The proposed circuit consists of two parts. One is the difference generator which generates a difference between a gate voltage and an input voltage.
Min-Sub Kim, Byoung-Gun Park, Rae-Young Kim, Dong-Seok Hyun   +3 more
openaire   +1 more source

A Comprehensive Analysis of Short-Circuit Current Behavior in PMSM Interturn Short-Circuit Faults

IEEE Transactions on Power Electronics, 2018
This paper presents a detailed analysis of short-circuit current behavior during interturn short-circuit faults in permanent magnet synchronous machines (PMSMs) by considering the short-circuit contact resistance. For this purpose, an finite element analysis (FEA)-based equivalent circuit model is developed to understand the circulating current ...
Yuan Qi, Emine Bostanci, Vigneshwaran Gurusamy, Bilal Akin   +3 more
openaire   +1 more source

A Review of Short-Circuit Fault Analysis and Novel Fault Detection Methods

2021
This paper proposes a comprehensive review of short circuit fault analysis. It presents the different definitions and classifications of faults. It then discusses both symmetrical and unsymmetrical faults in detail and provides the equations used to solve for the fault current during each of these faults.
Moayad Osman, Ibrahim O. Habiballah
openaire   +1 more source

Research on Ignition Characteristic of Short-Circuit Fault

Advanced Materials Research, 2013
Under voltage of 220V, this article has carried out ignition test of three categories of combustible substance including polyurethane foam, cotton cloth and newspaper by simulation of short-circuit fault of aluminum conducting wire, so as to get the characteristic parameters of ignition of combustible substance due to short-circuit bead at different ...
Bin Li, Ying Wu
openaire   +1 more source

A Comprehensive Analysis of Short-Circuit Fault in Wound-Rotor Resolvers

IEEE Transactions on Vehicular Technology, 2020
This paper presents a detailed analysis of short circuit fault (SCF) in wound rotor (WR) resolvers. For this purpose, an analytical model based on winding function (WF) method is developed considering the stator and rotor windings’ fault, the severity of the fault, the phase of the stator faulty winding, and the tooth of shorted turns.
Hamed Lasjerdi, Zahra Nasiri-Gheidari
openaire   +1 more source