Results 41 to 50 of about 60,225 (279)
Stability and Frequency Regulation of Inverters with Capacitive Inertia [PDF]
, 2017 In this paper, we address the problem of stability and frequency regulation of a recently proposed inverter. In this type of inverter, the DC-side capacitor emulates the inertia of a synchronous generator.
De Persis, Claudio +4 more
core +8 more sources
Energy Reports, 2022 The current small-signal stability analysis and parameter selection of converters that mimic synchronous generators usually ignore some dynamic characteristics and the changes of steady-state operating points for simplicity. It could only judge the trend
Xuekai Hu +5 more
doaj +1 more source
Energies, 2019 Large synchronous generators are the heart of the modern world, while producing the vast majority of the electric power consumed globally. Although they are robust devices, they are prone to degradation and failure.
Konstantinos N. Gyftakis +3 more
doaj +1 more source
A CONCISE OVERVIEW OF GENERATORS FOR WIND ENERGY SYSTEM [PDF]
Journal of Sustainable Energy, 2020 Wind power generator have been operational since 1888. Over this period, various types of wind turbine generator have been developed from the existing types of electric machines.
AIKA T. A. +3 more
doaj
Generalized Synchronization Trees [PDF]
, 2014 This paper develops a generalized theory of synchronization trees. In their original formulation, synchronization trees modeled the behavior of nondeterministic discrete-time reactive systems and served as the foundational theory upon which process algebra was based.
James Ferlez +2 more
openaire +1 more source
Dynamic Patterns in the Small-Signal Behavior of Power Systems with Wind Power Generation
EnergiesThis paper investigates the dynamic patterns in the small-signal behavior of power systems with wind power generation. The interactions between synchronous generators and wind generators are investigated.
Luis Rouco
doaj +1 more source
Fractional-Order Virtual Synchronous Generator
IEEE Transactions on Power Electronics, 2023 In this letter, a novel control scheme is proposed by combining the fractional-order control and the virtual synchronous generator, whereby more degrees of freedom are involved in the controller design. A well-damped power control without oscillations is achieved. At the same time, a significant improvement in the inertial effect is attained.
Yun Yu +5 more
openaire +2 more sources
Demonstration of sustained and useful converter responses during balanced and unbalanced faults in microgrids [PDF]
, 2012 In large power grids where converter penetration is presently low and the network impedance is predominantly reactive, the required response from converters during faults is presently specified by phrases such as “maximum reactive output”.
Burt, Graeme +4 more
core +1 more source
Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley +1 more source
IET Energy Systems IntegrationIn autonomous alternating current microgrids, the grid‐forming virtual synchronous generators can cooperate with the conventional synchronous generators to improve system inertia and frequency regulation capability.
Rui Liu +3 more
doaj +1 more source