Revista Eletrônica de Potência (Brazilian Journal of Power Electronics)

Title: Vector Control of a Single-Phase Induction Machine with Scott-T Connectionin the Stator and Estimation of Velocity with Sliding Mode Observer

Keywords: field orientation control (FOC), Induction motor, Scott-T connection, sensorless, sliding mode observer (SMO)

Abstract

This paper shows a high-performance sensorless driver for an induction machine with a Scott-T connection in the stator windings.
This connection is used to transform a single-phase machine into a three-phase only by changing the winding configuration, increasing efficiency
and minimizing the cost impact. This type of solution can be used as an alternative to the use of highperformance drivers controlling single-phase
induction machines. The motor model using the Scott-T connection is developed and the experimental results of a vector control approach by field
orientation are shown. A sliding mode observer is also developed for estimating the speed of the machine tested.

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