Results 21 to 30 of about 1,452,967 (344)
Distributed Generation as Voltage Support for Single Wire Earth Return Systems [PDF]
, 2004 Key issues for distributed generation (DG) inclusion in a distribution system include operation, control, protection, harmonics, and transients. This paper analyzes two of the main issues: operation and control for DG installation.
Kashem, Mohammad, Ledwich, Gerard
core +2 more sources
Contribution of a smart transformer in the local primary control of a microgrid [PDF]
, 2013 In order to enable an easy participation of microgrids in the electricity markets, the smart transformer (ST) concept has been developed. The ST controls the power exchange between a microgrid and the utility network by only controlling its microgrid ...
De Kooning, Jeroen +4 more
core +2 more sources
Voltage controlled metamaterial [PDF]
Applied Physics Letters, 2004 A tunable metamaterial based on conducting coils loaded by an electronic circuit containing a varicap diode has been demonstrated. The agility exceeds one octave inside the 100–500 MHz range. Permeability levels are significantly increased when the loop is loaded by a proper magnetic material.
Reynet, Olivier, Olivier, Acher
openaire +2 more sources
Energies, 2022 The dynamic performance of the DC bus significantly influences the impedance characteristics of MMC and the system stability in a high-voltage direct current system.
Tong Huang, Xin Chen
doaj +1 more source
Transition from Islanded to grid-connected mode of microgrids with voltage-based droop control [PDF]
, 2013 Microgrids are able to provide a coordinated integration of the increasing share of distributed generation (DG) units in the network. The primary control of the DG units is generally performed by droop-based control algorithms that avoid communication ...
De Kooning, Jeroen +3 more
core +1 more source
Special Issue “Applications of Finite Element Modeling for Mechanical and Mechatronic Systems”
Applied Sciences, 2021 Modern engineering practice requires advanced numerical modeling because, among other things, it reduces the costs associated with prototyping or predicting the occurrence of potentially dangerous situations during operation in certain defined conditions.
Marek Krawczuk, Magdalena Palacz
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Overview of Various Voltage Control Technologies for Wind Turbines and AC/DC Connection Systems
Energies, 2023 Wind power generation is one of the mainstream renewable energy resources. Voltage stability is as important as the frequency stability of a power system with a high penetration of wind power generation.
Yuan-Kang Wu +2 more
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Energies, 2020 This paper presents research on a hybrid photovoltaic-battery energy storage system, declaring its hourly production levels as a member of a balancing group submitting common scheduling unit to the day-ahead market.
Robert Małkowski +2 more
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Voltage control of ferromagnetic resonance [PDF]
Journal of Advanced Dielectrics, 2016 Voltage control of magnetism in multiferroics, where the ferromagnetism and ferroelectricity are simultaneously exhibiting, is of great importance to achieve compact, fast and energy efficient voltage controllable magnetic/microwave devices. Particularly,
Ziyao Zhou +3 more
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Analysis and Suppression of High Speed Dv/Dt Induced False Turn-on in GaN HEMT Phase-Leg Topology
IEEE Access, 2021 Gallium nitride high electron mobility transistor (GaN HEMT) is liable to gate false turn-on problem when the gate crosstalk voltage exceeds its threshold voltage in the widely adopted phase-leg topology due to its low threshold voltage and high ...
Xiao Long +4 more
doaj +1 more source