Performance analysis of DC to DC boost converter using different control methods

This paper focuses on analyzing the performance of DC-DC boost converter using different control methods. DC-DC boost converters are one of the widely used electronic circuits. Conventional linear DC-DC converters like PWM with proportional (P), proportional integral (PI), and proportional integral derivative (PID) perform well for fixed switching frequencies and small signals. But their performance falls while operating under load variations and large parameters. Most of the practical problems are nonlinear and nonlinear controllers can handle large parameters and variations of load quite satisfactorily. For these reasons, nonlinear controllers such as sliding mode controller, hysteresis controller, boundary controller and fuzzy logic controller are used. In this paper, design and simulation of DC to DC boost converter using sliding mode and fuzzy logic controller have been shown under continuous conduction mode of inductor current. The converters and controllers have been simulated by MATLAB/SIMULINK. Their robustness under step load variations has been tested and shown which is more feasible for boost converters.