• Alka Raj
• Jeena Joy
• Geethu James

High-step-up and high-efficiency DC-DC converters are necessary to handle large input currents and to reach high output voltages. Here the low voltage source is boosted to high voltages for feeding into inverter drive three phase induction motor. The conventional boost converter realize high voltage gains at rather large duty cycles (normally exceeding 50%) resulting in saturation of inductors but the impedance networks boost converter can reach a higher voltage gain with fewer diodes and small duty cycle and avoid instability caused by saturation of its inductors. Further, it can well fulfill the stringent industrial requirements, particularly of renewable power systems. Theoretically conventional boost converters may realize infinite voltage gains for switching duty-cycles very close to 100\% which however degrade the converter's overall efficiency. The induction motor became the workhorse in the industries. Low cost, high efficiency, high robustness, reliability and low maintenance are some the advantages of the induction motors over DC motors. When mechanical loads are changed the speed characteristics for induction motor also changes. The induction motors do not have the constant speed characteristics. A three phase induction motor is basically a constant speed motor so it’s somewhat difficult to control its speed. There are many control methods the induction motor to provide it with the constant speed characteristics. Some of the prominent methods are scalar control, vector control etc. The popular V/F method of induction motor operation has been done here. In the present work, low voltage is boosted by the impedance networks boost converter and then it drives the induction motor for traction application. Simulation of the system was done in MATLAB/SIMULINK and verified. The hardware of the system was also done and verified the result.

Boost converter, high voltage gain, few diodes, inductor saturation, induction motor.

"AN IMPEDANCE NETWORKS BOOST CONVERTER FOR AC TRACTION APPLICATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 5, page no.364-371, May-2018, Available :http://www.jetir.org/papers/JETIR1805659.pdf

"AN IMPEDANCE NETWORKS BOOST CONVERTER FOR AC TRACTION APPLICATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 5, page no. pp364-371, May-2018, Available at : http://www.jetir.org/papers/JETIR1805659.pdf