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標題: Adaptive backstepping control with integral action for PWM buck DC-DC converters
作者: Lin, S.C.
Tsai, C.C.
關鍵字: adaptive control;backstepping;DC-DC converter;digital signal;processor;pulse width modulation;regulation;sliding mode control;switch
Project: Journal of the Chinese Institute of Engineers
期刊/報告no:: Journal of the Chinese Institute of Engineers, Volume 28, Issue 6, Page(s) 977-984.
This paper develops a novel control methodology for voltage regulation and implementation of a buck DC-DC converter using a digital signal processor (DSP). Such a converter is modeled as a linear averaged state-space system model with an adjustable load. An adaptive backstepping voltage regulator is presented based on the measurements of an output voltage and a capacitor current. An approximate averaged circuit model is derived in order to show that the fast and stable mode of the capacitor current can be ignored and the buck DC-DC converter can be well approximated by the averaued circuit model. With the approximate averaged model, an adaptive backstepping control with integral action is proposed to regulate a stand-alone buck DC-DC converter. This proposed control method has been verified by computer simulation and implemented utilizing a stand-alone digital signal processor (DSP) TMS320C542 from Texas Instruments. Experimental results show that the proposed control method is capable of giving satisfactory voltage regulation performance under a wide range of input voltage variations and load changes.
ISSN: 0253-3839
DOI: 10.1080/02533839.2005.9671072
Appears in Collections:期刊論文

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