Title :
An adaptive digital controller for a unity power factor converter
Author :
Mitwalli, Ahmed H. ; Leeb, Steven B. ; Verghese, George C. ; Thottuvelil, V. Joseph
Author_Institution :
Lab. for Electromagn. & Electron. Syst., MIT, Cambridge, MA, USA
fDate :
3/1/1996 12:00:00 AM
Abstract :
This paper describes an adaptive digital controller for a unity power factor AC-DC power converter. The controller is based on a linear large-signal model of the boost power converter. A hardware design is presented and analyzed, followed by the software implementation of the control algorithm. Issues in digital control of power converters, such as quantization effects and fixed-point representation of system parameters, are examined in the context of this system. Experimental results are presented and compared with simulations
Keywords :
AC-DC power convertors; adaptive control; control system analysis; control system synthesis; digital control; electric current control; power engineering computing; power factor correction; power system harmonics; voltage control; AC-DC power converter; adaptive digital controller; boost power converter; control algorithm; fixed-point parameters representation; hardware design; linear large-signal model; quantization effects; simulations; software implementation; unity power factor; AC-DC power converters; Adaptive control; Algorithm design and analysis; Digital control; Hardware; Power system modeling; Programmable control; Quantization; Reactive power; Software algorithms;
Journal_Title :
Power Electronics, IEEE Transactions on
