This paper presents L-Z source inverter used to control the speed of an induction motor using the V/f method. Capacitors using Z source inverters may result in large volume, expensive cost, inrush current and resonance at start up. So to overcome this problem in Z source inverters, new topology of L-Z source inverter is used which can suppress the resonance thoroughly by removing capacitor, thus improving the efficiency of power supply. This paper also discusses about the implementation of variable speed drive to maintain constant speed of three phase induction motor. The system is simulated in MATLAB SIMULINK as well as hardware is set up for the same. The results are presented to show the superiority of L-Z source inverter.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.