DESIGN AND DEVELOPMENT OF HIGH PERFORMANCE INDUCTION MOTOR DRIVE

Abstract

Project Seminar & Dissertation, which form an integral part of our 12 year academic program are, according to the popular view, are tedious affairs. Contrary to this belief, I was determined to retrieve utmost dividends of the thesis work. Hence, prior to embarking upon this undertaking, much ' time was devoted towards selecting a suitable dissertation, suitable in the sense that it should provide me with an opportunity for applying concepts learnt and should be feasible, and viable for further use in industries. From amongst the plethora of thesis ideas the: present one was quite unanimously contemplated, primarily because the scheme was a novel one. For me, who never hitherto undertook such a fabrication job, the task seemed titanic to the hilt. In the course of work, however, the presumptive notion was proved to be baseless, as I faced several difficulties in completing the different stages of the thesis work; thanks also to our learned guides who streamlined and coordinated my efforts and whose divine dictum "Take up an idea, devote yourself on it have patience the sun will rise for you" has been the spring of driving force that motivated me.. Right from the stage of designing the PCB, mounting components on PCB, in software development and interfacing work, the project was rather a cruising voyage of creative learning. Ultimately all factors appear pygmy considering the immense joy and knowledge that I derived out of it. Since induction motors find wide applicability in domestic as well as industrial fields, speed control at negligible losses is an essential necessity today. In this project the switching signal are generated through a PC for a PWM, VSI using minimum loss variable pulse rate space vector technique, along with a •Data Acquisition Interface for the drive unit.And after developing the open loop drive I implemented close loop schemes successfully, and performance of the drive is studied.