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Optimum nonlinear model predictive controller design for flyback PFC rectifiers

Tahami, F ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1109/ISIEA.2010.5679494
  3. Publisher: 2010
  4. Abstract:
  5. Single-phase ac-dc Power Factor Correction (PFC) rectifiers have attracted considerable attention in recent years due to the adoption of increasingly stringent power quality regulations. In this paper a nonlinear model predictive controller design for a single-phase Flyback PFC rectifier is presented. After approximation of the tracking error in the receding horizon by its Taylor-series expansion to a specified order, an analytic solution to the model predictive control (MPC) is developed and a closed-loop nonlinear predictive controller is introduced. The main advantage of this digital control method is that unity power factor can be achieved over wide input voltage, load current range and on high dynamics directly depend on the processing speed of microprocessor. This method is applied to a flyback PFC rectifier, can improve the voltage control dynamics. Simulation results show that flyback PFC rectifier with NMPC provides better and more accurate performance in both steady states and transient compared to linear control methods
  6. Keywords:
  7. Power Factor Correction (PFC) Rectifier ; Accurate performance ; Analytic solution ; Closed-loop ; Control dynamic ; Dc power ; Digital control ; Flyback ; Flyback converters ; High dynamic ; Input voltages ; Linear controls ; Load currents ; Non-linear model ; Nonlinear Model Predictive Control (NMPC) ; Power factor corrections ; Predictive controller ; Processing speed ; Quality regulation ; Receding horizon ; Simulation result ; Steady state ; Taylor series expansions ; Tracking errors ; Unity power factor ; Control theory ; Controllers ; DC power transmission ; Digital control systems ; Electric potential ; Electric power factor ; Electric rectifiers ; Industrial electronics ; Linear control systems ; Model predictive control ; Voltage regulators ; Predictive control systems
  8. Source: ISIEA 2010 - 2010 IEEE Symposium on Industrial Electronics and Applications, 3 October 2010 through 5 October 2010 ; October , 2010 , Pages 70-75 ; 9781424476473 (ISBN)
  9. URL: http://ieeexplore.ieee.org/document/5679494/?reload=true