Design and implementation of A Sliding Mode Controller Technique for DC to DC Boost Converter fed Induction motor drive

Abstract

in this paper, a PI and sliding mode controller for the control of dc-dc boost converter fed induction motor drive application is designed and analyzed. Dynamic equations describing the boost converter are derived and sliding mode controller is designed. A two-loop control is employed for a boost converter. The sliding mode controlled buck converter system is tested for step load changes and input voltage variations. The theoretical predictions are validated by means of simulations. The performance of conventional PI controller and non-singular terminal sliding mode controller for current control is tested for reference disturbance, line disturbance and load disturbance conditions. The simulation results are presented. The boost converter is tested with operating point changes and parameter uncertainties. Fast dynamic response of the output voltage and load and input voltage variations are obtained.The traditional IM drive which integrates phase controlled boost converter in the facade end upshot tribulations like DC link fluctuations and deprived DC link voltage level. To overcome the problem, the conventional DC-DC converter is replaced with Proportional Integral (PI) and sliding mode controlled in the front end of IM drive that produces the DC link voltage in geometric progression. The Voltage Source Inverter (VSI) of the suggested system renders both open loop and closed loop control scheme for IM by feedback regulated Pulse Width Modulation (PWM) technique