Title :
Nonlinear control of power factor precompensators: an experimental study
Author :
Karagiannis, Dimitris ; Mendes, Eduardo ; Ortega, Romeo ; Astolfi, A.
Author_Institution :
Electr. & Electron. Eng. Dept, Imperial Coll., London, UK
Abstract :
An experimental comparative study of various controllers for a class of AC-DC converters, known as power factor precompensators, is presented. The control objective is to robustly regulate the output voltage to a desired constant level in the presence of variations in the load, while retaining a unit power factor at the input, i.e. the input current should follow in frequency and in phase with the input voltage. Several nonlinear and adaptive control schemes are presented and compared via experiments.
Keywords :
AC-DC power convertors; PWM power convertors; adaptive control; feedback; linearisation techniques; nonlinear control systems; power factor correction; voltage control; AC-DC converters; PWM power converters; adaptive control; feedback linearisation; internal model; nonlinear control; output voltage control; power factor precompensators; AC-DC power converters; Adaptive control; Equations; Power engineering and energy; Pulse width modulation; Reactive power; Robustness; Steady-state; Switching circuits; Voltage;
Conference_Titel :
Control Applications, 2002. Proceedings of the 2002 International Conference on
Print_ISBN :
0-7803-7386-3
DOI :
10.1109/CCA.2002.1038785
