• NAVNEET KUMAR
• Abhishek Thakur
• GEENA SHARMA

Multilevel inverters continue to receive more and more attention because of their high voltage operation capability, low switching losses, high efficiency and low output of Electro Magnetic Interference (EMI). Induction motors are most commonly used motors in industrial applications, control systems as well as in main powered home appliances. Simple and rugged construction, low-cost, good efficiency, low maintenance, simplicity of control and direct connection to an ac power source are the main advantages of induction motors. Speed control of slip ring induction motor (SIM) has major role in controlled speed drive applications. The power semiconductor technology has played a crucial role in the advancement of variable speed induction motor drives employing slip power recovery scheme (SRS). SIM drive operates at limited speed range and has slip power a smaller part of motor power rating, hence low rating of converter and lower cost. This paper presents the performance characteristics of IGBT chopper and inverter-controlled SRS based IMD. The simulation model of IMD using IGBT based buck-boost chopper and pulse width modulated voltage source inverter (PWM) have been build up in MATLAB 2013b for performance evaluations. The performances of IMD have been investigated by taking in to account the parameters viz. power factor, efficiency and total harmonic distortion (THD). The simulation results signifies that the IGBT chopper and PWM voltage source inverter controlled SRS based IMD has higher power factor, efficiency with lesser THD in comparison of SRS with SCR inverter control.

efficiency, power factor, slip power recovery scheme.

"Controlling Technique of Induction Motor Drive using IGBT Chopper and Multi-Level Inverter for Enhanced Performance ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 8, page no.13-18, August-2018, Available :http://www.jetir.org/papers/JETIR1808643.pdf

"Controlling Technique of Induction Motor Drive using IGBT Chopper and Multi-Level Inverter for Enhanced Performance ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 8, page no. pp13-18, August-2018, Available at : http://www.jetir.org/papers/JETIR1808643.pdf