A hardware tool for explained power electronics control of induction motors
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This paper presents a digital controller suitable for an instructional laboratory in electric drives. A
prototype has been designed specifically to meet the requirements of low cost and motivating education
tool, and it contains all of the active functions required to implement the open loop control of induction
motors. This approach develops the concept of “grey box” module where the details are built for
convenience, but not hidden inside as a “black box”. Introductory laboratory experiments are presented to
demonstrate how this hardware can be integrated in laboratory classes to present the most important
concepts as regards adjustable speed drives.
