Results 51 to 60 of about 9,364,788 (352)

Spin Seebeck Power Conversion [PDF]

open access: yesIEEE Transactions on Magnetics, 2015
14 pages, 14 ...
Adam B. Cahaya   +2 more
openaire   +2 more sources

Surface-emitting circular DFB, disk-, and ring-Bragg resonator lasers with chirped gratings. III: gain saturation effects and above-threshold analysis [PDF]

open access: yes, 2009
As Part III of this series, this paper focuses on an above-threshold modal analysis which includes gain saturation effects in the surface-emitting chirped circular grating lasers. We derive an exact energy relation which states that, in steady state, the
Sun, Xiankai, Yariv, Amnon
core   +1 more source

Design of PR current control with selective harmonic compensators using Matlab

open access: yesJournal of Electrical Systems and Information Technology, 2017
This paper presents a procedure to design a Proportional Resonant (PR) current controller with additional PR selective harmonic compensators for Grid Connected Photovoltaic (PV) Inverters.
Daniel Zammit   +3 more
doaj   +1 more source

Nature of power electronics and integration of power conversion with communication for talkative power

open access: yesNature Communications, 2020
Power electronics and communication electronics are both based on electromagnetic theory, but they are usually regarded as two distinct subfields in electrical engineering.
Xiangning He   +3 more
semanticscholar   +1 more source

Parameter Identification of Electrical Equivalent Circuits including Mass Transfer Parameters for the Selection of the Operating Frequencies of Pulsed PEM Water Electrolysis

open access: yesEnergies, 2022
This paper proposes a parameter identification method for a PEM electrolyzer electrical equivalent circuit for pulse electrolysis. Since general water electrolysis mainly uses DC currents, identifying equivalent circuit parameters using electrical ...
Jae-Hoon Kim   +4 more
doaj   +1 more source

Analysis of the safe operation region of grid-connected converters under time-varying operating point conditions

open access: yesInternational Journal of Electrical Power & Energy Systems
Plenty of engineering operation experience indicates that the performance of grid-connected converters (GCCs) undergoes a transformation in response to alterations in operating points.
Weijie Xie   +6 more
doaj   +1 more source

An accurate analysis method for transient characteristics of DC line faults in voltage source converter‐based DC systems

open access: yesIET Generation, Transmission & Distribution, 2021
Voltage source converter‐based DC systems face severe overcurrent problem under DC line faults, which causes significant influence on security, reliability and stability of the power system. As the theoretical basis for relay coordination and protection,
Zhengguang Xiao   +6 more
doaj   +1 more source

Suspension of Australian National Electricity Market in 2022 Necessitates Mechanism Evolution Ensuring Power Supply Security

open access: yesJournal of Modern Power Systems and Clean Energy, 2023
The National Electricity Market (NEM) in Australia was suspended during June 15-23, 2022, with a primary attribution to the lack of available generation capacity.
Zhenfei Tan   +4 more
doaj   +1 more source

A Multiport Power Conversion System for the More Electric Aircraft

open access: yesIEEE Transactions on Transportation Electrification, 2020
In more electric aircraft (MEA), weight reduction and energy efficiency constitute the key figures. In addition, the safety and continuity of operation of its electrical power distribution system (EPDS) are of critical importance.
Chunyang Gu   +9 more
semanticscholar   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

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