Results 71 to 80 of about 54,052 (304)
A voltage-source inverter for microgrid applications with an inner current control loop and an outer voltage control loop [PDF]
, 2009 Distributed generation (DG) units are commonly inter-faced to the grid by using voltage-source inverters (VSI’s). Extension of the control of these inverters allows to improve the power quality if the main power grid is disturbed or disconnected. In this
De Belie, Frederik +4 more
core +1 more source
Optimization of LCL Filter Grid-Connected Inverters
Academic Journal of Science and Technology, 2023 The increasing use of grid-connected inverters in power systems, driven by renewable energy growth and high-voltage, high-power open-loop devices, poses challenges due to PWM modulation generating harmful high-frequency harmonic currents. Optimizing parameter selection becomes crucial.LCL grid-connected inverters, as third-order systems, suffer from ...
openaire +1 more source
Advanced Functional Materials, EarlyView.AgCrP2S6 reveals a momentum‐indirect band edge (≈1.35 eV) and chain‐locked linear dichroism: the first direct transitions emerge at 1.6–1.8 eV for E||a. Resonant Raman and photoemission corroborate this assignment. In ACPS/graphene heterostructures, photocurrent turns on above ≈1.5 eV and follows the same polarization selection rules (anisotropy ≈0.53),
Oleksandr Volochanskyi +9 more
wiley +1 more source
Simulation of High Power Factor Single Phase Inverter For PV Solar Array [PDF]
, 2017 Photovoltaic (PV) systems are solar energy supplySystems which either supply power directly to an electrical equipment or feed energy into the public electricity grid.
Aziz, A. (Anam), Purwar, M. V. (Mr)
core
PI-based controller for low-power distributed inverters to maximise reactive current injection while avoiding over voltage during voltage sags [PDF]
, 2018 This paper is a postprint of a paper submitted to and accepted for publication in IET Power Electronics and is subject to Institution of Engineering and Technology Copyright.
Camacho Santiago, Antonio +4 more
core +2 more sources
Stability analysis of distributed generation grid‐connected inverter
The Journal of Engineering, 2018 With the distributed new energy power generation increased, the power grid system becomes more and more complex, leading to its stability more likely to be affected. Among them, the resonance caused by impedance mismatch is particularly critical. The small‐signal model of phase‐locked loop and current control in the inverter control system have been ...
Xuemei Zheng +4 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.Here, a biointerface membrane engineered with site‐specific interfacial properties is developed. During implantation between gingival and bone defect, the membrane creates a pro‐osteogenic microenvironment, precisely modulates cellular activities at each biointerface, and facilitates the orchestration of complex healing events, ultimately leading to ...
Yuwei Zhu +13 more
wiley +1 more source
Color Routing and Beam Steering of Single‐Molecule Emission with a Spherical Silicon Nanoantenna
Advanced Functional Materials, EarlyView.We experimentally demonstrate broadband directional emission from single molecules using a single spherical silicon nanoparticle assembled via DNA origami. By varying nanoparticle (NP) size and emitter position, we achieve unidirectional emission, beam steering, and color routing at the nanoscale, revealing modal interference as the underlying ...
María Sanz‐Paz +9 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.This study introduces an innovative approach to treating intervertebral disc degeneration using ultrasound‐triggered in situ hydrogel formation. Proof‐of‐concept experiments using optimized biomaterial and ultrasound parameters demonstrate partial restoration of biomechanical function and successful integration into degenerated disc tissue, offering a ...
Veerle A. Brans +11 more
wiley +1 more source
Application of Fuzzy Control in a Photovoltaic Grid-Connected Inverter
Journal of Electrical and Computer Engineering, 2018 To realize the maximum power output of a grid-connected inverter, the MPPT (maximum power point tracking) control method is needed. The perturbation and observation (P&O) method can cause the inverter operating point to oscillate near the maximum power ...
Zhaohong Zheng +2 more
doaj +1 more source