Comparative analysis of Different Control Techniques on Interleaved Boost Converter in Discrete Time Domain

Abstract

This paper propose a comparative study of interleaved boost converter with different control techniques in discrete time domain, which includes discretized classical type three controller, discrete PID controller and discretized Particle Swarm Optimization (PSO) based Optimal type Three controller. Comparison have been made on the basis of settling time, Rise time, Steady state error and percentage overshoot. Interleaved Boost converter helps in producing suppress ripples of output voltages which helps in reducing size and cost of output filter and is better than simple Boost converter because of the presence of different parallel paths for power switching the Degree of Freedom (DOF) of IBC is increased but due to non-minimum phase issue its bandwidth of close-loop dynamics is limited that effects the converter Response and slower them. IBC can implemented on hardware which should be very cost effective and easy to handle, Classical type three controller, PID and PSO based Type three controller is being discretized and implemented with discretized IBC and the results is being carried out in MATLAB 16.