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Analysis and design of predictive control strategy for sheppard-taylor based PFC rectifier

Abedi, M. R ; Sharif University of Technology | 2008

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  1. Type of Document: Article
  2. DOI: 10.1109/ISIE.2008.4677024
  3. Publisher: 2008
  4. Abstract:
  5. In this paper CCM/CVM operation and modeling of the Sheppard-Taylor topology is reviewed and a predictive control strategy is applied for a Sheppard-Taylor-based power factor correction (PFC) rectifier. Compared to conventional boost or buck - boost PFC's, this topology allows a better current tracking at the AC side, with a relatively reduced voltage at the DC side. Consequently, the high frequency AC filters required by the buck PECs are avoided, and the voltage stresses on the boost switches are significantly reduced. Furthermore In predictive control strategy the duty cycle required to achieve unity power factor in a half line period can be calculated in advance. The main advantage of this digital control PFC method is achieving on high dynamics directly depend on the processing speed of micro processor. Simulation results show that a Sheppard-Taylor converter controlled by both this strategy can achieve sinusoidal current waveform with good dynamic response. Input voltage feed-forward compensation makes the output voltage insensitive to the input voltage variation and guarantees sinusoidal input current even if the input voltage is distorted. © 2008 IEEE
  6. Keywords:
  7. AC generator motors ; Digital control systems ; Dynamic response ; Electric power factor ; Industrial electronics ; Predictive control systems ; Topology ; AC filters ; Ac sides ; Analysis and designs ; Boost switches ; Buck boosts ; Current tracking ; Digital controls ; Duty cycles ; Half lines ; High dynamics ; High frequencies ; Input voltages ; Micro processors ; Operation and modeling ; Output voltages ; Power-factor corrections ; Predictive control strategies ; Processing speeds ; Simulation results ; Sinusoidal currents ; Sinusoidal input currents ; Unity power factors ; Voltage stresses ; Electric rectifiers
  8. Source: 2008 IEEE International Symposium on Industrial Electronics, ISIE 2008, Cambridge, 30 June 2008 through 2 July 2008 ; 2008 , Pages 397-402 ; 1424416655 (ISBN); 9781424416653 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/4677024