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
Feasibility of high frequency alternating current power distribution for the automobile auxiliary electrical system [PDF]
, 2011 This study investigates the feasibility and potential benefits of high frequency alternating current (HFAC) for vehicle auxiliary electrical systems. A 100Vrms, 50kHz sinusoidal AC bus is compared with 14V DC and 42V DC electrical systems in terms of ...
Antaloae, C. C.
core +3 more sources
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
core +1 more source
PWM ZCS DC Motor Drive and DC Power Supply [PDF]
, 2011 Following the extension and increase in capacity of power electronic elements, many convertors with special applications have been designed. Convertors such as rectifiers, AC and DC power supplies, AC and DC drivers and so on. At present, optimization of
Montazeri, Bardia; Department of Electrical Engineering, Islamic Azad University, Iran
core +1 more source
Influence of DC Voltage Droop Settings on AC System Stability [PDF]
, 2012 This paper presents a methodology to study the impact of different DC voltage droop settings on the AC system stability. When several Voltage Source Converters (VSC) in a DC system jointly control the DC voltage by means of droop control, an outage of ...
Beerten, Jef +8 more
core +1 more source
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
core +3 more sources
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
core +2 more sources
New cascaded multilevel inverter with series connection of novel capacitor based basic units
IET Power Electronics, 2023 This research proposes a novel multilevel inverter based on a new capacitor basic unit. Four capacitors are deployed in this unit to provide both even and odd voltage levels.
Sara Laali, Reza Nasiri‐Zarandi
doaj +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
Multipulse improved-power-quality AC–DC convertors for vector-controlled induction-motor drives
, 2006 The paper deals with polygon autotransformer-based 12-pulse and 18-pulse AC-DC convertors feeding vector-controlled induction-motor drives (VCIMDs) for improving power quality at the point of common coupling (PCC).
Singh, B., Garg, V., Bhuvaneswari, G.
core +1 more source