Title :
A digital controller for a unity power factor converter
Author :
Mitwalli, A.H. ; Leeb, S.B. ; Verghese, George C. ; Thottuvelil, V.J.
Author_Institution :
Lab. for Electron. Syst., MIT, Cambridge, MA, USA
Abstract :
A digital controller for a unity power factor AC-DC converter is designed, based on a linear large-signal model of the power supply. A hardware implementation of the design is presented and analyzed, along with simulations of the closed-loop system. Issues in digital control of power systems, such a quantization effects and fixed-point representation of system parameters, are examined in the context of this system. The experimental results are then compared with the simulations and used to evaluate the implementation.
Keywords :
closed loop systems; control system synthesis; controllers; digital control; power control; power convertors; power factor; AC-DC converter; closed-loop system; digital controller; experimental results; fixed-point representation; linear large-signal model; power supply; quantization effects; simulations; system parameters; unity power factor converter; AC-DC power converters; Analytical models; Digital control; Hardware; Power supplies; Power system analysis computing; Power system control; Power system modeling; Power system simulation; Reactive power;
Conference_Titel :
Computers in Power Electronics, 1992., IEEE Workshop on
Conference_Location :
Berkeley, CA, USA
Print_ISBN :
0-7803-0920-0
DOI :
10.1109/CIPE.1992.247306
