Multiloop controller for N-stage cascade boost converter Conference Paper

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Overview

abstract

• In recent years, the development of new technologies is requiring wider conversion ratios. A possible solution to this problem is to use n-stages connected in cascade; however, the major drawbacks are: (a) the total losses are increased mainly by the active switches, and (b) a more complex control circuitry is required. An alternative solution is to use a cascade boost converter with a single active switch. In this paper, nonlinear and linear models are given for the above converter. A controller is developed using average current-mode control where the current of the first inductor is selected for feedback purposes. For the inner loop, a current gain and a high gain compensator are selected. For the output loop, a conventional PI-controller is designed. © 2007 IEEE.

authors

• Carbajal Gutiérrez Enrique Eduardo
• Diaz-Saldierna L.H.
• Leyva-Ramos J.
• Ortiz-Lopez M.G.

publication date

• 2007-01-01

published in

• Proceedings of the IEEE International Conference on Control Applications  Proceedings

Research

keywords

• Cascade converters; Current-mode control; Nonlinear and linear models; Switch-mode DC-DC converters Cascade boost converter; Linear models; Multiloop controllers; Electric converters; Feedback control; Large scale systems; Linear equations; Nonlinear control systems; Control equipment

Identity

Digital Object Identifier (DOI)

• 10.1109/CCA.2007.4389295

Additional Document Info

start page

• 587

end page

• 592