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An isolated three-phase three-switch buck rectifier with inrush current limiting

Noroozi, N ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1109/PEDSTC.2015.7093322
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2015
  4. Abstract:
  5. In this paper a single stage structure is proposed for realizing a three-phase unity power factor rectifier. This topology utilizes a forward/flyback transformer to allow the high-frequency isolation. The principle of the operation and the applied control concept is discussed. Space vector modulation is used in order to achieve unity power factor and to have the output voltage be regulated. Furthermore, the system transient is analyzed during turn-on and a novel method is applied to the control system in order to limit inrush current during startup. The proper operation of the soft-start method is confirmed by numerical simulation of a 6KW, 380V/48Vdc. The stability of the closed-loop as well as the converter performance is verified by measurements on a low-power prototype
  6. Keywords:
  7. Inrush current limiter ; Power Factor Correction (PFC) ; Single-stage conversion ; Electric power factor ; Limiters ; Numerical methods ; Power electronics ; Rectifying circuits ; Vector spaces ; Converter performance ; Forward/Flyback converter ; High-frequency isolation ; Power factor corrections ; Single stage ; Space Vector Modulation ; Unity power factor ; Unity power factor rectifier ; Electric rectifiers
  8. Source: 6th Annual International Power Electronics, Drive Systems, and Technologies Conference ; 2015 , Pages 480-485 ; 9781479976539 (ISBN)
  9. URL: http://ieeexplore.ieee.org/document/7093322/?arnumber=7093322