TITLE

Improved Performance of the Positive Output Elementary Split Inductor-Type Boost Converter using Sliding Mode Controller plus Fuzzy Logic Controller

AUTHOR(S)
KUMAR, K. RAMASH; JEEVANANTHAN, S.; RAMAMURTHY, S.
PUB. DATE
January 2014
SOURCE
WSEAS Transactions on Systems & Control;2014, Vol. 9, p215
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This article presents a design of variable frequency based reduced-order sliding mode controller (ROSMC) plus fuzzy logic controller (FLC) for positive output elementary split inductor-type boost converter (POESITBC). Because of the time varying switched mode of operation, the dynamic characteristics of POELSITBC is non-linear in nature. The conventional controllers are not able to improve the dynamic performance under the line and load variations. In order to enhance the dynamic characteristics together with the inductor current and output voltage regulation of the POTSITBC, a ROSMC plus FLC is developed. The designed ROSMC is fit to the naturally variable-structured POESITBC when expressed in the reduced order state-space average based model. The ROSMC is act as an inner current loop control for POESITBC and the FLC is act as an outer loop for the same converter, which are used to regulate the inductor current, regulate output voltage and reduce the steady state error as well as the outstanding initial start-up response of the converter in spite of line and load changes. The performance of the developed controller is validated at different working regions through the MATLAB/Simulink model over a ROSMC plus proportional-double integralcontroller (PDIC). Simulated results are indicated that designed controller can acquire the superior output voltage and inductor current regulations at different stages.
ACCESSION #
97264686

 

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