Results 41 to 50 of about 5,464 (277)

Fractional-order Sliding Mode Control of Hybrid Drive Wind Turbine for Improving Low-voltage Ride-through Capacity

Journal of Modern Power Systems and Clean Energy, 2023
A hybrid drive wind turbine equipped with a speed regulating differential mechanism can generate electricity at the grid frequency by an electrically excited synchronous generator without requiring fully or partially rated converters.
Ziwei Wang, Wenliang Yin, Lin Liu, Yue Wang, Cunshan Zhang, Xiaoming Rui   +5 more
doaj   +1 more source

Optimal PID Controllers for AVR System Considering Excitation Voltage Limitations Using Hybrid Equilibrium Optimizer

Machines, 2021
Automatic voltage regulator (AVR) represents the basic voltage regulator loop in power systems. The central part of this loop is the regulator, which has parameters that define the speed of the voltage regulation, quality of responses, and system ...
Martin Ćalasan, Mihailo Micev, Milovan Radulović, Ahmed F. Zobaa, Hany M. Hasanien, Shady H. E. Abdel Aleem   +5 more
doaj   +1 more source

Dynamic Performance of a Hybrid Synchronous Machine with Ultra-High XD/XQ Ratio

ABUAD Journal of Engineering Research and Development, 2023
This paper presents a hybrid synchronous machine with ultra-high XD/XQ ratio. A conventional synchronous machine has two components of output power; the excitation and the reluctance component.
Linus Uchechukwu Anih, Eugene Okenna Agbachi, Emeka Simon Obe   +2 more
doaj   +1 more source

Modeling and Control of a 7-phase Claw-pole Starter-alternator for a Micro-hybrid Automotive Application [PDF]

, 2008
This paper deals with the modeling and the control of a new high power 12V Integrated Starter Alternator (ISA). This system is used to bring micro-hybrid functions to standard Internal Combustion Engine (ICE) vehicles.
BOUSCAYROL, Alain, A. Bouscayrol, MIPO, Jean-Claude, J.C. Mipo, DUBUS, Jean-Marc, BRUYERE, Antoine, LOCMENT, Fabrice, E. Semail, A. Bruyere, F. Locment, CHARLEY, Jacques, SEMAIL, Eric, J.M. Dubus   +12 more
core   +1 more source

Electromagnetic characteristic of a novel hybrid excitation generator for vehicles based on the field-and-circuit method

Frontiers in Mechanical Engineering
IntroductionThe electro-magnetic generator commonly used in automobiles generally has high excitation loss leading to low efficiency. And it cannot effectively provide power for the vehicle, thus shortening battery life.In order to solve the issues, a ...
Jianwei Ma, Jianwei Ma, Xianjun Zeng, Xianjun Zeng, Jun Liu, Kaikai Shao, Kaikai Shao, Hao Huang, Xiaojia Zhang, Zengpu Xun   +9 more
doaj   +1 more source

High-Fidelity Model of Stand-Alone Diesel Electric Generator With Hybrid Turbine-Governor Configuration for Microgrid Studies

IEEE Access, 2022
Diesel electric generators are an inherent part of remote hybrid microgrids found in remote regions of the world that provide primary frequency response (PFR) to restore system frequency during load or generation changes.
Chinmay Shah, Richard W. Wies, Timothy M. Hansen, Reinaldo Tonkoski, Mariko Shirazi, Phylicia Cicilio   +5 more
doaj   +1 more source

Disturbance Rejection-Based Optimal PID Controllers for New 6ISO AVR Systems

Fractal and Fractional, 2023
In the literature, different approaches that are employed in designing automatic voltage regulators (AVRs) usually model the AVR as a single-input-single-output system, where the input is the generator reference voltage, and the output is the generator ...
Muhyaddin Rawa, Sultan Alghamdi, Martin Calasan, Obaid Aldosari, Ziad M. Ali, Salem Alkhalaf, Mihailo Micev, Shady H. E. Abdel Aleem   +7 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

Molecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano, Giuseppina Minopoli, Simona Romano, Laura Marrone, Katia Aquilano, Maria Lina Tornesello, Raffaella Faraonio   +6 more
wiley   +1 more source

Validação de modelos de simulação em sistemas elétricos utilizando medição fasorial sincronizada [PDF]

, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2015.A qualidade dos modelos tem sido uma constante preocupação dos engenheiros de planejamento, desde que a ...
Goméz Castro, Jorge Enrique
core