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Smart technique for calculating fault current model parameters using short circuit current measurements. [PDF]

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Mahmoud RA, Malik OP, Fayek WM.
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An improved fault current limiter for hybrid DC circuit breakers in large-scale MMC-HVDC systems

Rashid Hussain Chandio, Madad Ali Shah, Abdul Aziz Memon, Faheem Akhtar Chachar   +3 more
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Rectifier Fault Currents

Transactions of the American Institute of Electrical Engineers, 1945
CURRENTS in excess of normal, or fault currents, flow in rectifier circuits under conditions of arc-back or d-c short circuit. In normal service, faults are imposed on rectifiers by both the arc-backs that occur in the rectifier itself and the short circuits that occur in the external d-c system.
C. C. Herskind, H. L. Kellogg
semanticscholar   +3 more sources

Nonsuperconducting Fault Current Limiter With Controlling the Magnitudes of Fault Currents

IEEE Transactions on Power Electronics, 2009
In this paper, a diode-bridge-type nonsuperconductor fault current limiter (NSFCL) is proposed. The structure has the capability of controlling the DC reactor current that yields to control the magnitude of fault current. In order to control the magnitude of DC reactor current, a discharging resistor is used in the proposed structure.
M.T. Hagh, M. Abapour
openaire   +2 more sources

Factors Affecting Battery Unit Contributions to Fault Currents in Grid-connected Battery Storage Systems

Annual Meeting of the IEEE Industry Applications Society, 2021
This paper investigates factors affecting the contributions of battery units to fault currents in grid-connected battery storage systems (BSSs). The work in this paper is intended to examine effects of the state-of-charge (SOC) on battery currents that ...
S. A. Saleh, E. Ozkop, Marcelo Valdes, A. Yuksel, M. Haj-ahmed, Zaid Garcia Sánchez, C. Mardegan   +6 more
semanticscholar   +1 more source

Mitigation of Half-Cycle Saturation of Adjacent Transformers During HVDC Monopolar Operation—Part II: Detecting Zero-Sequence Fault Currents

IEEE Transactions on Power Delivery, 2020
This two-part paper presents a method to mitigate half-cycle saturation of transformers caused by monopolar operation of neighboring HVDC transmission lines while keeping the ability to detect the zero-sequence fault currents (ZSFC) when ground faults ...
Ming Yang, Digvijay Deswal, Francisco de Leόn   +2 more
semanticscholar   +1 more source

Employing Fault Currents in the Reliability Analysis of Motor Drives

IEEE transactions on industry applications, 2020
This article presents a method to include fault currents in the reliability analysis of motor drives. The presented method is based on formulating a fault current matrix (FCM), the elements of which are values of the currents flowing in all parts of a ...
S. Saleh, E. Ozkop, M. S. Ayas, T. Boileau, B. Nahid-Mobarakeh   +4 more
semanticscholar   +1 more source

Adaptive Fault-Tolerant Control for Open-Circuit Faults in Dual Three-Phase PMSM Drives

IEEE transactions on power electronics, 2023
The traditional fault-tolerant procedure usually comprises fault detection and fault tolerance. Fault detection is adopted to locate the specific fault, which increases the complexity and misdiagnosis risk of fault-tolerant systems.
Pengchuan Shi, Xueqing Wang, Xin Meng, Mingzhi He, Yao Mao, Z. Wang   +5 more
semanticscholar   +1 more source

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

Rectifier Fault Currents---II

Transactions of the American Institute of Electrical Engineers, 1949
A comprehensive procedure for the analysis of fault currents in power rectifiers has been developed and some of the more usual cases have been analyzed for the 6-phase double-Y circuit. However, further analyses are still required to cover all the conditions which may be encountered in practice and provide a ready means for determining fault currents.
C. C. Herskind, A. Schmidt, C. E. Rettig
openaire   +1 more source