Article : [PAP180]

Info : ANSWER 1, le 29/01/2001.

Titre : M.D. MANJREKAR, R. KIEFERNDORF, G. VENKATARAMANAN, Power electronic transformers for utility applications, IAS Annual Meeting, october 2000, pp. 2496-2502.

Cité dans : [DIV175]  Recherche sur les mots clés DESIGN et STATIC et CONVERTER.

Meeting : 35th IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy.
Location : Rome, Italy
Date : 08 Oct 2000-12 Oct 2000
Source : Conference Record - IAS Annual Meeting (IEEE Industry Applications Society) v 4 2000.
Pages : 2496 - 2502
Info : IEEE, Piscataway, NJ, USA, 00CB37129
CODEN : CIASDZ
ISSN : 0197-2618
Année : 2000
Info : Meeting_Number : 57662
Language : English
Stockage : Thierry LEQUEU
Lien : private/MANJREKAR.pdf - 7 pages, 492 Ko.

Abstract :
A transformer is employed to perform several functions such as
voltage transformation, isolation, noise decoupling and has been an
indispensable component in power conversion systems. However, at low
operating frequencies, it is one of the heaviest and the most
expensive equipment in an electrical distribution system. The
concept of realizing a small size 'solid-state' transformer has been
discussed for some time. A fairly straightforward approach to
accomplish size reduction in a transformer feeding a conventional
rectifier-inverter system is to introduce an isolated dc-dc
converter in the dc link, isolation being provided by a high
frequency transformer. So also, several topologies that employ ac-ac
converters connected on primary and secondary sides of a high
frequency transformer to reduce the size and weight of the magnetic
core have been reported in literature. Such ac-ac converters need
switches with bi-directional voltage blocking and current carrying
capability, which are commonly realized with pairs of gate turn-off
devices such as Insulated Gate Bipolar Transistors (IGBT). This
paper explores the possibilities of employing ac-ac switched mode
power converters in combination with reactive elements to realize a
chopped ac link, thereby decreasing the required magnetic core size
for voltage transformation and isolation. A primary advantage of
this approach is that, the static power converter needs only six
devices to implement a three-phase electronic transformer, which
makes it an economical solution. Operating principles, magnetic
design and other practical issues are discussed. Detailed computer
simulations accompanied with experimental verification are presented
in the paper.(Author abstract)

References : 15 Refs.

Accession_Number : 2001(5):1478 COMPENDEX

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