Asynchronous bidirectional direct frequency converter controlled by space vectors

E. P. Wiechmann, J. R. Espinoza, J. R. Rodriguez

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

With the development of gated turn off devices, integrated power electronis switches and microprocessor control, power converter circuits structures are becoming increasingly complex. Following this trend, this paper presents a Direct Frequency Converter (DFC) suitable for medium to high power levels. Compared with the traditional PWM frequency converter, the proposed DFC converter produces output voltages 73% higher, posseses inherent current balance of a larger number of switches, ensures lower commutation loses, complete eliminates the bulky dc link filter and reduces ac input filter requirements. To simulate, analize and compare the DFC main characteristics a model based on an Instantaneous Transfer Matrix is introduced. Moreover, the concept of converter transfer states enables high accuracy and minimize the processing time. The model is generalized and three phase ac to ac converters can be fully analized regardless of its internal structure and/or control method. Complete per unit results of the DFC controlled by space vector control are presented.

Original languageEnglish
Title of host publicationProceedings of the 1990 IEEE Colloquium in South America, COLLOQ 1990
EditorsWillis J. Tompkins
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages178-183
Number of pages6
ISBN (Electronic)0879426101, 9780879426101
DOIs
Publication statusPublished - 1 Jan 1990
Event1990 IEEE Colloquium in South America, COLLOQ 1990 - Buenos Aires, Argentina
Duration: 31 Aug 199015 Sep 1990

Publication series

NameProceedings of the 1990 IEEE Colloquium in South America, COLLOQ 1990

Conference

Conference1990 IEEE Colloquium in South America, COLLOQ 1990
Country/TerritoryArgentina
CityBuenos Aires
Period31/08/9015/09/90

ASJC Scopus subject areas

  • Management of Technology and Innovation
  • Computer Networks and Communications
  • Computer Science Applications
  • Energy Engineering and Power Technology
  • Biomedical Engineering
  • Health Informatics

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