The influence of frequency of AC component on space charge behaviours in polyethylene under combined AC and DC electric fields [PDF]
, 2014 Combined ac and dc voltages may occur in high voltage power transmission system, which bring challenges to the dielectric materials. Generally speaking, space charge is well recognised under high voltage dc conditions but has received little attention ...
C. Zhou +3 more
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A power sharing series power BJT array with isolated low voltage control for AC power control applications [PDF]
, 2006 A technique for a continuously variable AC resistance using a series BJT array is presented. This array provides high power dissipation capability and uniform voltage and power distribution across the individual transistors. The array, controlled using a
Paul Cho +3 more
core +1 more source
High frequency inverter-transformer-cycloconverter system for DC to AC (3-phase) power conversion [PDF]
, 1991 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis is concerned with a 3-phase multistage high frequency link DC to AC power conversion with a novel inverter-cycloconverter circuitry.
Karamat, Asghar
core +6 more sources
Control of Modular Multilevel Converter based on bridge cells for 3-phase AC/AC converter [PDF]
, 2013 The Modular Multilevel Converter (MMC) with full bridge cells is available for a utility interactive inverter in high voltage line. When it is interconnected with power line, it is possible to control the active power flow in order to supply or charge ...
Shin-ichi Hamasaki +5 more
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High pulse AC/DC convertors and their application to HVDC transmission. [PDF]
, 1992 AC/DC convertors used in HVdc transmission systems inject harmonics into their associated AC and DC systems. A conventional approach to filter these harmonics is to use passive filters on both AC and DC sides of the convertor.
Villablanca, Miguel
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Tradeoffs between AC power quality and DC bus ripple for 3-phase 3-wire inverter-connected devices within microgrids [PDF]
, 2011 Visions of future power systems contain high penetrations of inverters which are used to convert power from dc (direct current) to ac (alternating current) or vice versa.
Finney, Stephen J. +2 more
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A Direct Single-Phase to Three-Phase AC/AC Power Converter
, 2022 The traditional DC-link indirect AC/AC power converters (AC/DC/AC converters) employ two-stage power conversion, which increases the circuit complexity along with gate driving challenges, placing an excessive burden on the processor while implementing ...
Joysree Nath +4 more
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Application of novel AC–AC matrix VFD for power factor improvement in conventional AC–DC–AC VFD-loaded power distribution lines / [PDF]
, 2022 In this study, an innovative approach to matrix-converter-based AC-–AC variable frequency drives (VFDs) is introduced. The possibility of using AC–AC matrix VFDs for reactive power compensation in conventional AC–DC–AC VFD-loaded power distribution lines
Svinkunas, Gytis, +11 more
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Introdução e avaliação de cultivares e porta-enxertos de citros em Rio Branco-AC. [PDF]
, 1992 O presente estudo tem como objetivo avaliar o desempenho de 17 cultivares e 4 porta-enxertos de citros, nas condições edafoclimáticas de Rio Branco ...
AZEVEDO, F. F. de +3 more
core +1 more source
, 1998 The following topics are dealt with: AC-DC converter; power flow solution; harmonic solution; three-phase power and harmonic flow; electromagnetic transient simulation; electromechanical stability and transient converter ...
Bruce Smith +3 more
core +1 more source