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|標題:||Adaptive backstepping control with integral action for PWM buck DC-DC converters||作者:||Lin, S.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.||摘要:||
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.
|Appears in Collections:||期刊論文|
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