Results 41 to 50 of about 112,832 (334)

CAD enabled trajectory optimization and accurate motion control for repetitive tasks [PDF]

open access: yes, 2019
As machine users generally only define the start and end point of the movement, a large trajectory optimization potential rises for single axis mechanisms performing repetitive tasks.
Ceulemans, David   +5 more
core   +2 more sources

Enhanced Virtual Inertia Controller for Microgrid Applications

open access: yesEnergies, 2023
Unlike Synchronous Generators (SGs), Virtual Synchronous Generators (VSGs) inertia is not fixed once it is manufactured and only has an upper limit defined by its energy storage components. In this paper, a novel Enhanced Virtual Inertia Controller (EVIC) is proposed.
Ahmed Sheir, Vijay K. Sood
openaire   +2 more sources

Self-Adaptive Virtual Inertia Control-Based Fuzzy Logic to Improve Frequency Stability of Microgrid With High Renewable Penetration

open access: yesIEEE Access, 2019
Maintaining frequency stability of low inertia microgrids with high penetration of renewable energy sources (RESs) is a critical challenge. Solving this challenge, the inertia of microgrids would be enhanced by virtual inertia control-based energy ...
Thongchart Kerdphol   +3 more
doaj   +1 more source

An adaptative control strategy for interfacing converter of hybrid microgrid based on improved virtual synchronous generator

open access: yesIET Renewable Power Generation, 2022
Inertial support for hybrid AC/DC microgrid systems is provided by the virtual synchronous generator (VSG). However, the fast performance of the system is neglected while enhancing the stability of the system. To address this problem, an adaptive virtual
Liang Zhang   +5 more
doaj   +1 more source

Virtual inertia analysis of photovoltaic energy storage systems based on reduced-order model

open access: yesFrontiers in Energy Research, 2023
The problem of non-ideal inertia of the photovoltaic energy storage system (PVESS) may occur due to unreasonable voltage control parameters. In response to this issue, this paper establishes an equivalent reduced-order model (EROM) for PVESS.
Guanyang Li   +3 more
doaj   +1 more source

Distributed Adaptive Attitude Synchronization of Multiple Spacecraft

open access: yes, 2011
This paper addresses the distributed attitude synchronization problem of multiple spacecraft with unknown inertia matrices. Two distributed adaptive controllers are proposed for the cases with and without a virtual leader to which a time-varying ...
A. Abdessameud   +26 more
core   +1 more source

The use of pseudo-inertia in asymptotic modelling of constraints in boundary value problems [PDF]

open access: yes, 2009
In recent publications, the validity of using positive and negative inertial penalty parameters and the advantage of this approach over the conventional positive penalty function approach have been established for linear eigenvalue problems.
Henderson, L., Ilanko, Sinniah
core   +2 more sources

Inertia estimation of new energy power system with virtual inertia response of wind power

open access: yes电力工程技术, 2023
The accurate estimation of inertia is the premise of analyzing the security and stability of the system frequency, but the existing methods can not quantitatively evaluate the effect of virtual inertia on the equivalent inertia of the power system.
LI Shichun   +3 more
doaj   +1 more source

Inertial and retardation effects for dislocation interactions [PDF]

open access: yes, 2009
A new formulation for the equation of motion of interacting dislocations is derived. From this solution it is shown that additional coupling forces, of kinetic and inertial origin, should be considered in Dislocation Dynamics (DD) simulations at high ...
C. Denoual   +4 more
core   +6 more sources

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

open access: yesFEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini   +2 more
wiley   +1 more source

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