Estudo sobre inversores de frequência e elaboração de guias experimentais para acionamento de motor de indução.

Abstract

The control of speed variation of alternating current motors always been desired and only since 60’s, due to availability of semiconductors, the researchers have turned their attention to devices able to achieve this goal – the frequency inverters. Only after two decades, with the technological development of microprocessors jointly with lower prices, frequency converters have improved considerably becoming more common in the market. With the increasing utilization of this equipment in various places and the constant technological innovation, it is necessary to rain new users on this widespread technology, giving them a perspective about the operating principles, fundamental characteristics and behavior in activation of three phase induction motors. To accomplish this, montages and essays were performed in the High Voltage Laboratory of the Federal University of Campina Grande, using the CFW-11, series 3.1X WEG, to activate three phase induction motors, aiming draft experimental guides for training students of Electrical Engeneering.