Optimal tracking control for an AC-DC power converter

Author

Zuniga, Guillermo C. ; Ornelas-Tellez, Fernando

Author_Institution

Fac. of Electr. Eng., Univ. Michoacana de San Nicolas de Hidalgo, Morelia, Mexico

fYear

2013

fDate

13-15 Nov. 2013

Firstpage

1

Lastpage

6

Abstract

This paper presents an optimal controller in order to achieve trajectory tracking for the DC output voltage of an AC-DC power converter, which is described by nonlinear dynamics. The synthesized optimal control law comes from solving the Hamilton-Jacobi-Bellman equation for state-dependent coefficient factorized nonlinear systems. The proposed controller results in a state feedback optimal control law plus a time varying term, which minimizes a quadratic performance index. In order to illustrate the tracking to a desired reference, the controller is applied to an AC-DC converter, considering two cases: fixed and variable frequency for the input voltage source. Simulation results illustrate the effectiveness of the control scheme.

Keywords

AC-DC power convertors; nonlinear dynamical systems; optimal control; AC-DC power converter; Hamilton-Jacobi-Bellman equation; factorized nonlinear systems; nonlinear dynamics; optimal tracking control; state feedback optimal control; state-dependent coefficient; voltage source; AC-DC power converters; Inductors; Nonlinear systems; Optimal control; Riccati equations; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power, Electronics and Computing (ROPEC), 2013 IEEE International Autumn Meeting on

Conference_Location

Mexico City

Type

conf

DOI

10.1109/ROPEC.2013.6702727

Filename

6702727