Published in: International Journal of Engineering Research & Technology
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Volume/Issue: Vol. 3 - Issue 5 (May - 2014)
Advances in power Electronics have permitted Variable Voltage Variable Frequency (VVVF)controlled device for induction motors becoming immensely popular. These devices save power and permit the robust squirrel cage motor to drive from the smallest pump motors to fuel efficient hybrid drive cars and buses to the most powerful Diesel loco upto 4000 kW and Electric Locomotives up to 9000kW. This paper presents a novel method of modelling AC Traction drive using MATLAB. Power system Block set/simulation software focusingon Rectifier – Inverter – Motor systems. Three phase induction motor used in electric locomotive has been considered for the model. The inverter has been simulated to operate in two modes i.e. six step and Pulse Width Modulation (PWM) mode with rectifier block. The inverter fault condition has also been simulated to study the performance of electric traction drive under loaded condition. The model can be used to evaluate the load torque value for a particular speed of traction motor drive
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