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SETSCI - Volume 4(5) (2019)
HORA2019 - International Congress on Human-Computer Interaction, Optimization and Robotic Applications, Ürgüp, Turkey, Jul 05, 2019

Comparative Analysis of PI and Sliding Mode Control Methods for Cascade DC/DC Boost Converters
Kemal Kaya1*, Yakup Hameş2
1Iskenderun Technical University, Iskenderun, Turkey
2Iskenderun Technical University, Iskenderun, Turkey
* Corresponding author:
Published Date: 2019-10-12   |   Page (s): 120-124   |    80     13

ABSTRACT In this study, a single switch cascade DC/DC boost converter has been preferred instead of conventional cascade DC/DC boost converter to reduce cost and provide simple system control. High-performance controller design for DC/DC converters is the most important problem of power electronics. To solve this problem, PI (proportional-integral) and SMC (sliding-mode control) are used for the purpose of control the voltage at the cascade DC/DC boost converter output. The advantages and disadvantages of these two control methods have been discussed in the study. Furthermore, the cascade DC/DC boost converter circuit is designed by connecting two boosters in succession. The simulation results of the control methods applied to this converter circuit have been analyzed and the most efficient controller has been determined to overcome the disadvantages of the system. Moreover, since the number of circuit elements in the proposed cascade DC/DC boost converter is less than in the conventional boost converter, both the cost has decreased and the output voltage has been more easily controlled.
KEYWORDS Cascade DC/DC boost converter, PI controller, sliding mode control, power electronics
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