Performance analysis of a microcontroller based slip power recovery drive

Abstract

Slip power recovery wound rotor induction motor drives are used in high power, limited speed range applications where control of slip power provides the variable speed drive system. In this paper, the steady state performance analysis of conventional slip power recovery scheme using static line commutated inverter in the rotor circuit is presented. Simulation of the scheme is carried out using Matlab/Simulink environment and experimental set-up is prepared in the laboratory for a 2-hp wound rotor induction motor. Microcontroller technique is used for the generation of firing pulses for the inverter bridge. The simulation and experimental results are analyzed.