Results 31 to 40 of about 3,160,518 (299)

A Discontinuous Modulation Method with Variable Clamping Interval Width of the Modular Multilevel Converter

open access: yesWorld Electric Vehicle Journal, 2022
The modular multilevel converter (MMC) has been widely used because of the advantages of easier expansion, lower harmonic distortion and higher output voltage level.
Xin Gu   +3 more
doaj   +1 more source

Estimation of Semiconductor Switching Losses under Hard Switching using Matlab/Simulink Subsystem

open access: yesElectrical, Control and Communication Engineering, 2013
The conventional tools for the system level simulation of the switch-mode power converters (for example, MATLAB/SIMILINK) allow simulating the behavior of a power converter jointly operating with the control system in a closed automatic regulation system.
Volodymyr Ivakhno   +2 more
doaj   +1 more source

A practical approach to switching-loss reduction in a large-capacity static VAr compensator based on voltage-source inverters [PDF]

open access: yes, 2000
This paper presents a simple method for reduction of switching and snubbing losses in a large-capacity static VAr compensator (SVC) consisting of multiple three-phase voltage-source square-wave inverters.
Fujita, Hideaki   +2 more
core   +1 more source

The effect of switching transitions on switched capacitor converters losses [PDF]

open access: yes2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, 2012
The contribution of the rise and fall times of switches to the losses of Switched Capacitors Converters was evaluated by an approximate analysis applying the equivalent resistance concept. It was found that switch turn-on and turn-off durations increase the equivalent resistance of the converter and, consequently, the losses, except in the case of ...
M. Evzelman, Shmuel Ben-Yaakov
openaire   +1 more source

Application of a Novel ARCP Circuit in UPS

open access: yesJournal of Harbin University of Science and Technology, 2017
In order to reduce the loss of the power switching device and improve the efficiency of the UP system,the ARCP soft switching technology can be used.
MA Jun-jie   +3 more
doaj   +1 more source

Power Quality Analysis of a Hybrid Microgrid-Based SVM Inverter-Fed Induction Motor Drive with Modulation Index Diversification

open access: yesEnergies, 2022
The effects of varying modulation indices on the current and voltage harmonics of an induction motor (IM) powered by a three-phase space vector pulse-width modulation (SVM) inverter are presented in this research.
Subramanian Vasantharaj   +3 more
doaj   +1 more source

Modified Design of Two-Switch Buck-Boost Converter to Improve Power Efficiency Using Fewer Conduction Components

open access: yesApplied Sciences, 2022
In this study, a modified design of a two-switch buck-boost (TSBB) converter is proposed to improve power efficiency using fewer conduction components, and the optimal power range is measured.
Sunghwan Kim   +2 more
doaj   +1 more source

Asymmetric Split-Gate 4H-SiC MOSFET with Embedded Schottky Barrier Diode for High-Frequency Applications

open access: yesEnergies, 2021
4H-SiC Metal-Oxide-Semiconductor Field Effect Transistors (MOSFETs) with embedded Schottky barrier diodes are widely known to improve switching energy loss by reducing reverse recovery characteristics.
Kyuhyun Cha, Kwangsoo Kim
doaj   +1 more source

Quantum computation and communication using electron spins in quantum dots and wires [PDF]

open access: yes, 2001
The recent discovery of efficient quantum algorithms for factoring and database search has shown that quantum computing would allow to solve important problems which are intractable with conventional computers.
Burkard, Guido
core   +1 more source

A Parallel Dual LLC Resonant Converter with Wide Output Voltage Range for Energy System Applications

open access: yesEnergies
This paper proposes a half-bridge parallel dual LLC resonant converter with wide output voltage range. The proposed converter uses a conventional parallel double half-bridge LLC resonant converter.
Chih-Chiang Hua   +2 more
doaj   +1 more source

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