Results 1 to 10 of about 3,566,556 (147)

Pathways toward a Decarbonized Future—Impact on Security of Supply and System Stability in a Sustainable German Energy System

open access: yesEnergies, 2021
Pathways leading to a carbon neutral future for the German energy system have to deal with the expected phase-out of coal-fired power generation, in addition to the shutdown of nuclear power plants and the rapid ramp-up of photovoltaics and wind power ...
Michael Metzger   +13 more
doaj   +1 more source

On the stability of fuzzy systems [PDF]

open access: yesIEEE Transactions on Fuzzy Systems, 1997
Studies the global asymptotic stability of a class of fuzzy systems. It demonstrates the equivalence of stability properties of fuzzy systems and linear time invariant (LTI) switching systems. A necessary and sufficient condition for the stability of such systems are given, and it is shown that under the sufficient condition, a common Lyapunov function
Thathachar, MAL, Viswanath, Pramod
openaire   +2 more sources

Zero Moment Line—Universal Stability Parameter for Multi-Contact Systems in Three Dimensions

open access: yesSensors, 2022
The widely used stability parameter, the zero moment point (ZMP), which is usually defined on the ground, is redefined, in this paper, in two different ways to acquire a more general form that allows its application to systems that are not supported only
Tilen Brecelj, Tadej Petrič
doaj   +1 more source

Overview on Grid-Forming Inverter Control Methods

open access: yesEnergies, 2020
In this paper, different control approaches for grid-forming inverters are discussed and compared with the grid-forming properties of synchronous machines. Grid-forming inverters are able to operate AC grids with or without rotating machines. In the past,
Peter Unruh   +3 more
doaj   +1 more source

System Integrity Protection Schemes: Naming Conventions and the Need for Standardization

open access: yesEnergies, 2022
The energy transition is placing increased strain on power systems and making it challenging for Transmission System Operators (TSOs) to securely operate power systems. System Integrity Protection Schemes (SIPSs) are one of the solutions to address these
Stefan Stanković   +2 more
doaj   +1 more source

Formation of Characteristic Polynomials on the Basis of Fractional Powers j of Dynamic Systems and Stability Problems of Such Systems

open access: yesEnergies, 2021
The article presents the creation of characteristic polynomials on the basis of fractional powers j of dynamic systems and problems related to the determination of the stability intervals of such systems.
Orest Lozynskyy   +11 more
doaj   +1 more source

Experimental Study on the Stability and Transient Behavior of a Closed-Loop Two-Phase Thermosyphon (CLTPT) Charged with NOVEC 649

open access: yesEnergies, 2021
Currently, the growing need for efficient refrigeration resources in the industrial sector has led to an increasing interest in finding technologies with a higher heat removal potential and better cooling performance.
Ana Larrañaga   +3 more
doaj   +1 more source

Design and Development of a Mathematical Model for an Industrial Process, in a System Dynamics Environment

open access: yesApplied Sciences, 2022
This research proposes a methodology based on control engineering, transforming the simulation model of system dynamics into a mathematical model expressed as a system transfer function.
Jorge Manuel Barrios Sánchez   +2 more
doaj   +1 more source

Dynamic Modeling and Stability Analysis for a Spur Gear System Considering Gear Backlash and Bearing Clearance

open access: yesMachines, 2022
In practice, gear backlash and bearing clearance usually exist together in a gear system. They may induce complicated dynamic responses and degrade transmission performance.
Gang Tian   +3 more
doaj   +1 more source

Optimal Allocation of Wind Turbines by Considering Transmission Security Constraints and Power System Stability

open access: yesEnergies, 2013
A novel optimization methodology consisting of finding the near optimal location of wind turbines (WTs) on a planned transmission network in a secure and cost-effective way is presented on this paper.
Rodrigo Palma-Behnke, Claudia Rahmann
doaj   +1 more source

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