Results 41 to 50 of about 4,854,873 (396)
Impact of Inverter Based Resources on System Protection
Energies, 2021 Inverter-based resources (IBRs) exhibit different short-circuit characteristics compared to traditional synchronous generators (SGs). Hence, increased uptake of IBRs in the power system is expected to impact the performance of traditional protective ...
A. Haddadi +3 more
semanticscholar +1 more source
IET Generation, Transmission & Distribution, 2023 Optimal coordination of the protection devices (PDs) is performed here simultaneous with optimal allocation of them and the DGs. The PDs are a set of directional overcurrent relays (DOCRs) and voltage relays, each with its own fast switch (FS).
Seyed Salman Fatemi, Haidar Samet
doaj +1 more source
A transient current based micro-grid connected power system protection scheme using wavelet approach
International Journal of Electrical and Computer Engineering (IJECE), 2019 Micro-grids comprise Distributed Energy Resources (DER’s) with low voltage distribution networks having controllable loads those can operate with different voltage levels are connected to the micro-grid and operated in grid mode or islanding mode in a ...
S. C. Shekar, G. Kumar, S. Lalitha
semanticscholar +1 more source
The Power System and Microgrid Protection—A Review
Applied Sciences, 2020 In recent years, power grid infrastructures have been changing from a centralized power generation model to a paradigm where the generation capability is spread over an increasing number of small power stations relying on renewable energy sources.
Jalal Sahebkar Farkhani +4 more
semanticscholar +1 more source
FEBS Letters, EarlyView.Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi +5 more
wiley +1 more source
Overload protection system for power inverter [PDF]
, 1977 An overload protection system for a power inverter utilized a first circuit for monitoring current to the load from the power inverter to detect an overload and a control circuit to shut off the power inverter, when an overload condition was detected. At
Nagano, S.
core +1 more source
Recursive least squares for online dynamic identification on gas turbine engines [PDF]
, 2016 Online identification for a gas turbine engine is vital for health monitoring and control decisions because the engine electronic control system uses the identified model to analyze the performance for optimization of fuel consumption, a response to ...
Nalianda, Devaiah +2 more
core +1 more source
IET Generation, Transmission & Distribution, 2021 This study proposes a a novel efficient strategy for identifying symmetrical faults from power swings in order to improve the performance of distance relay.
Mohsen Jannati, Mohammad Mohammadi
doaj +1 more source
By dawn or dusk—how circadian timing rewrites bacterial infection outcomes
FEBS Letters, EarlyView.The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo +2 more
wiley +1 more source
Phase protection system for ac power lines [PDF]
, 1974 The system described provides protection for phase sensitive loads from being or remaining connected to ac power lines whenever a phase reversal occurs.
Wong, W. J.
core +1 more source