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On model predictive control of quasi-resonant converters

Tahami, F ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1142/S0218126609005605
  3. Publisher: 2009
  4. Abstract:
  5. In this paper, different model predictive control synthesis frameworks are examined for DCDC quasi-resonant converters in order to achieve stability and desired performance. The performances of model predictive control strategies which make use of different forms of linearized models are compared. These linear models are ranging from a simple fixed model, linearized about a reference steady state to a weighted sum of different local models called multi model predictive control. A more complicated choice is represented by the extended dynamic matrix control in which the control input is determined based on the local linear model approximation of the system that is updated during each sampling interval, by making use of a nonlinear model. In this paper, by using and comparing these methods, a new control scheme for quasi-resonant converters is described. The proposed control strategy is applied to a typical half-wave zero-current switching QRC. Simulation results show an excellent transient response and a good tracking for a wide operating range and uncertainties in modeling. © 2009 World Scientific Publishing Company
  6. Keywords:
  7. Control inputs ; Control schemes ; Control strategies ; Extended dynamic matrix control ; Extended dynamics ; Half-wave ; Linear model ; Linearized models ; Local linear models ; Local model ; Multi model ; Multi model predictive control ; Non-linear model ; Operating ranges ; Predictive control ; Quasi resonant converters ; Quasi-resonant converter ; Sampling interval ; Simulation result ; Steady state ; Transient response ; Weighted Sum ; Zero-current switching ; Electric converters ; Linearization ; Matrix algebra ; Predictive control systems ; Proportional control systems ; Model predictive control
  8. Source: Journal of Circuits, Systems and Computers ; Volume 18, Issue 7 , 2009 , Pages 1167-1183 ; 02181266 (ISSN)
  9. URL: https://www.worldscientific.com/doi/10.1142/S0218126609005605