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Experimental evaluation of differential voltage protection scheme based on a coherence function applied to AC machine stator windings. [PDF]

Sci Rep
Mahmoud RA.
europepmc   +1 more source

Chiller sensor fault diagnosis based on circle mapping and adaptive t-distribution Runge-Kutta algorithm optimized LSTM. [PDF]

Sci Rep
Wang Y, Liu J, Liu F, Duan X.
europepmc   +1 more source

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Internal Faults in Modular Multilevel Converter

2018 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2018
The Modular Multilevel Converter (MMC) has modular and redundant structure, which makes it more reliable during certain fault conditions. Hence MMC technology has received considerable attention among various topologies for interconnecting High Voltage Direct Current (HVDC) grid.
Shilpi Kedia, Rohit S. Thute, Himanshu J. Bahirat, Anshuman Shukla   +3 more
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A simple method to detect internal and external short-circuit faults, classify and locate different internal faults in transformers

Electrical Engineering, 2020
In new power systems, transformer monitoring and on-time detection of internal faults in power transformers are of great importance because if these faults are not identified on-time, the lifetime of the transformer might be reduced, the transformer might be completely disconnected, and network reliability might decrease. In this paper, a new method is
Hossein Ahmadi, Behrooz Vahidi, Amin Foroughi Nematollahi   +2 more
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Microgrid Protection Against Internal Faults: Challenges in Islanded and Interconnected Operation

IEEE Power and Energy Magazine, 2021
Microgrids have gained significant interest over the last 20 years and are perceived as key components of future power systems. Microgrids are defined as distribution networks with distributed energy resources (DERs) (e.g., distributed generators ...
Dimitris T. Lagos, V. Papaspiliotopoulos, G. Korres, N. Hatziargyriou   +3 more
semanticscholar   +1 more source

Novel Method for Location of Internal Faults in Ungrounded Double Wye Shunt Capacitor Banks

IEEE Transactions on Power Delivery, 2021
Double wye shunt capacitor banks (SCB) are commonly used for reactive power support in high voltage transmission systems. Neutral current unbalance method is often used for protecting double wye SCBs against internal faults.
P. S. Pavan, Sarasij Das
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Diagnostic technique for analysing the internal faults within power transformers based on sweep frequency response using adjusted R-square methodology

IET Science, Measurement & Technology, 2020
The sweep frequency response analysis (SFRA) technique is based on measuring the power transformer electrical transfer functions over a wide frequency range to identify the abnormal areas prior to serious failure.
O. Gouda, S. H. El-hoshy
semanticscholar   +1 more source

Robust Passive Fault Tolerant Control for Air Fuel Ratio Control of Internal Combustion Gasoline Engine for Sensor and Actuator Faults

Journal of the Institution of Electronics and Telecommunication Engineers, 2021
This paper presents a novel Passive Fault Tolerant Control System (PFTCS) for Air Fuel Ratio (AFR) control system of the Internal Combustion (IC) gasoline engine to prevent its shutdown.
Dr. Arslan Ahmed Amin, Khalid Mahmood-Ul-Hasan   +1 more
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Modeling Transformers with Internal Incipient Faults

IEEE Power Engineering Review, 2002
Incipient fault detection in transformers can provide early warning of electrical failure and could prevent catastrophic losses. To develop the transformer incipient fault detection technique, a transformer model is required, to simulate internal incipient faults.
null Hang Wang, K.L. Butler
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Internal deformation due to shear and tensile faults in a half-space

Bulletin of The Seismological Society of America (BSSA), 1992
A complete set of closed analytical expressions is presented in a unified manner for the internal displacements and strains due to shear and tensile faults in a half-space for both point and finite rectangular sources.
Y. Okada
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