Results 31 to 40 of about 10,583,291 (292)

Intelligent maximum power point tracker enhanced by sliding mode control

International Journal of Power Electronics and Drive Systems (IJPEDS), 2022
In solar photovoltaic systems applications, the maximum power point tracker has been involved for different purposes to support their performance. The maximum power point tracking (MPPT) works on growing the obtained electricity from the solar photovoltaic energy and consequently increases the quantity of the delivered electrical power from the ...
Hussain Attia, Ahmad Elkhateb
openaire   +2 more sources

A Fast and Efficient MPPT Technique Based on Voltage Transients for PV Systems Under Partial Shading Conditions

IET Renewable Power Generation
Obtaining maximum power from photovoltaic (PV) systems operating under partial shading conditions (PSC) is quite challenging. Maximum power point tracking (MPPT) algorithms are necessary to extract the maximum power from the PV system in a very short ...
Resat Celikel, Musa Yilmaz
doaj   +1 more source

A Fuzzy Logic Controller Based on Maximum Power Point Tracking Algorithm for Partially Shaded PV Array-Experimental Validation

Elektronika ir Elektrotechnika, 2018
In the last two decades, the maximum power point tracking (MPPT) methods for PV system is becoming very interesting subject. Among these methods there is Fuzzy-MPPT, which is mainly based on two inputs and at least 25 rules.
Boualam Benlahbib, Noureddine Bouarroudj, Saad Mekhilef, Tameur Abdelkrim, Abdelkader Lakhdari, Farid Bouchafaa   +5 more
doaj   +1 more source

Nonlinear Observer Based on Linear Matrix Inequalities for Sensorless Grid-tied Single-stage Photovoltaic System

Advances in Electrical and Computer Engineering, 2021
The objective of this work is to design a Nonlinear Observer used in a Cascade Control scheme for Maximum Power Point Tracking goals of a grid-tied single-phase photovoltaic inverter. The main contribution of this work is to employ a nonlinear observer
TERAN-GONZALEZ, R. A. J., PEREZ, J., BERISTAIN, J. A.   +2 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Comparative Assessment of P&O, PSO Sliding Mode, and PSO-ANFIS Controller MPPT for Microgrid Dynamics

Elektronika ir Elektrotechnika
This paper compares different maximum power point tracking (MPPT) control strategies in microgrid dynamics, focussing on perturb and observe (P&O), adaptive neuro-fuzzy inference system (ANFIS), particle swarm optimisation (PSO), and PSO sliding mode ...
Mohammed Yassine Dennai, Hamza Tedjini, Abdelfatah Nasri   +2 more
doaj   +1 more source

Ligand‐dependent transcriptional heterogeneity in cell cycle gene expression delays G1/S entry

FEBS Letters, EarlyView.
EGF and HRG induce distinct G1/S progression programs in ErbB2‐amplified BT474 breast cancer cells. Despite activating the potent ErbB2–ErbB3 heterodimer, HRG does not accelerate cell‐cycle entry. Instead, EGF promotes earlier restriction‐point passage via ERK–FOS signaling, whereas HRG activates the AKT–MYC axis, driving transcriptional heterogeneity ...
Ririn Rahmala Febri, Ayaka Nagasato‐Ichikawa, Keita Iida, Shuhei Kimura, Akira Imamoto, Mariko Okada   +5 more
wiley   +1 more source

Driving an asynchronous motor powered by PV‐MPPT using equivalent RST controller of fractional order PI and IP, based on generalized predictive control

IET Generation, Transmission & Distribution
The article introduces a new model of a Reference Signal Tracking (RST) controller for the fractional order quantities. The controller is applied to an indirect field‐oriented control (IFOC) system used for the speed control of an asynchronous motor ...
Besma Nemouchi, Salah Eddine Rezgui, Abdulrahman Babqi, Ambe Harrison, Hocine Benalla, Enas Ali, Sherif S. M. Ghoneim   +6 more
doaj   +1 more source

Circulating microRNA signatures of cachexia and cancer in Canis familiaris as a comparative oncology model for human disease

Molecular Oncology, EarlyView.
Circulating microRNAs as biomarkers of cachexia and sex‐specific cancer in senior dogs. In 25 client‐owned dogs, four circulating miRNAs (miR‐15a, miR‐15b, miR‐16, miR‐140) were downregulated in cachexia, with miR‐16 the strongest individual biomarker (AUC = 0.899).
Soon‐Seok Park, Kyongman An, Gyeonghwa Kim, Soo‐Nyun Choi, Hong‐Ki Lee, Keun Hur, Kyu‐Shik Jeong   +6 more
wiley   +1 more source

Microcontroller Servomotor for Maximum Effective Power Point for Solar Cell System [PDF]

, 2010
In this paper a Maximum Power point (MPP) tracking algorithm is developed using dual-axis servomotor feedback tracking control system. An efficient and accurate servomotor system is used to increase the system efficiency and reduces the solar cell system
Noaman, N., Al-Rawi, O., Al-Khalidy, M.
core