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Implementation of Sliding Mode Control in a Full Bridge (DC-DC) Converter


Affiliations
1 Department of Electrical Engineering, University of Tafresh, Tafresh, Iran, Islamic Republic of
2 Department of Electrical Engineering, Science and research branch, Islamic Azad University, Arak, Iran, Islamic Republic of
3 Department of Electrical Engineering, Arak University, Arak, Iran, Islamic Republic of
 

Converters are widely used in many fields specially Distributed Generation applications. Because of the non-linear and the uncertain characteristics of DC-DC converters, Sliding Mode Control (SMC), which is robust against uncertainties and disturbances, is implemented in a full-bridge converter in order to control the converter output by varying the duty cycle of the converter. The proposed method is explained and formulated using state-space average model of the fullbridge converter. Additionally, the effects of changing the design parameters of the introduced sliding mode controller in tracking performance and tracking are discussed. Moreover, the system behavior during load and source sudden changes is analyzed. High performance and tracking accuracy of the system under parameter variation are confirmed appropriately using simulations.

Keywords

Full-Bridge Converter, Sliding Mode Control, Nonlinear Control, DG
User

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  • Implementation of Sliding Mode Control in a Full Bridge (DC-DC) Converter

Abstract Views: 569  |  PDF Views: 169

Authors

Amir Hassan Shams-Ansari
Department of Electrical Engineering, University of Tafresh, Tafresh, Iran, Islamic Republic of
Farzad Razavi
Department of Electrical Engineering, University of Tafresh, Tafresh, Iran, Islamic Republic of
Ali Asghar Ghadimi
Department of Electrical Engineering, Science and research branch, Islamic Azad University, Arak, Iran, Islamic Republic of
Hossein Abolmasoumi
Department of Electrical Engineering, Arak University, Arak, Iran, Islamic Republic of

Abstract


Converters are widely used in many fields specially Distributed Generation applications. Because of the non-linear and the uncertain characteristics of DC-DC converters, Sliding Mode Control (SMC), which is robust against uncertainties and disturbances, is implemented in a full-bridge converter in order to control the converter output by varying the duty cycle of the converter. The proposed method is explained and formulated using state-space average model of the fullbridge converter. Additionally, the effects of changing the design parameters of the introduced sliding mode controller in tracking performance and tracking are discussed. Moreover, the system behavior during load and source sudden changes is analyzed. High performance and tracking accuracy of the system under parameter variation are confirmed appropriately using simulations.

Keywords


Full-Bridge Converter, Sliding Mode Control, Nonlinear Control, DG

References





DOI: https://doi.org/10.17485/ijst%2F2012%2Fv5i5%2F30441