Title :
Adaptive Variable Switching Frequency Digital Controller Algorithm to Optimize Efficiency
Author :
Al-Hoor, Wisam ; Abu-Qahouq, Jaber A. ; Huang, Lilly ; Batarseh, Issa
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Central Florida Univ., Orlando, FL
Abstract :
An adaptive digital controller with maximum efficiency point tracking to optimize DC-DC converter switching frequency is presented in this paper. The adaptive-frequency-optimization (AFO) method changes the DC-DC converter switching frequency while tracking the converter minimum input power (maximum efficiency) point under variable conditions including variable load and variable input voltage. The AFO digital controller continuously finds the optimum switching frequency that result in the minimum total loss while converter parameters and conditions vary. In this paper, the AFO method is discussed analyzed and its digital control algorithm and experimental implementation are presented.
Keywords :
DC-DC power convertors; adaptive control; digital control; switching convertors; DC-DC converter; adaptive digital controller; adaptive-frequency-optimization method; optimum switching frequency; point tracking; switching frequency digital controller algorithm; Adaptive control; Centralized control; DC-DC power converters; Digital control; Lighting control; Programmable control; Switching converters; Switching frequency; Switching loss; Voltage control;
Conference_Titel :
Circuits and Systems, 2007. ISCAS 2007. IEEE International Symposium on
Conference_Location :
New Orleans, LA
Print_ISBN :
1-4244-0920-9
Electronic_ISBN :
1-4244-0921-7
DOI :
10.1109/ISCAS.2007.378002
