Review on Performance Analysis of Three Control Techniques for Buck Converter feeding a Resistive Load

Ghulam Mustafa; Fiaz  Ahmad

Authors

Ghulam Mustafa Air University, Islamabad
Dr. Fiaz Ahmad Air University, Islamabad

Keywords:

Buck converter, PID control, Fuzzy logic control (FLC), Sliding mode control (SMC)

Abstract

In power systems, DC/DC converters are used to reduce or improve the dc voltage level. A dc/dc converter's major difficulty is controlling the output dc voltage closer to the desired set-point voltage at the load and input voltage fluctuation. Designers aim for better efﬁciency, reduced harmonics, and higher power while keeping converter size and power under safe limits. Several control techniques are used in dc/dc converters to overcome the problems mentioned above. This paper compares the transient performance of three control techniques, namely proportional-integral-derivative (PID) control, fuzzy logic control (FLC), and sliding mode control (SMC) methods, after a brief introduction of these techniques. Secondly, the three techniques have performed simulation results of a buck converter feeding a resistive load. Comparative analyses are presented for various conditions such as input voltage and load variation tests. It is observed that SMC outperforms the other two methods for both simulation scenarios.

Author Biography

Dr. Fiaz Ahmad, Air University, Islamabad

Dr. Fiaz Ahmad is working as Associate Professor in the academia. He has served as laboratory engineer, laboratory coordinator, lecturer, assistant professor and now serving as associate professor in electrical engineering. He is a multi skilled academician with diverse skills such as Power system state estimation and control, Power Converters design and control, Electronics circuits design and analysis, programing languages such as; C++, Assembly languages, Matlab and Simulink, and other skills like LaTeX, Beamer. office tools, Leadership, and Project Management. He is a strong education professional with a Doctor of Philosophy (PhD) in Mechatronics Engineering from Sabanci University Turkey.

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