Direct Field Oriented Controller Applied to Observe Its Advantages over Scalar Control

Abstract

A new squirrel cage induction motor (IM) model, which is based on the state model in d-q coordinate system, is proposed so that it is available for direct field oriented control (FOC), which is of rotor flux oriented type, or vector control. Then, using the IM model, field oriented and scalar speed controllers are designed in Simulink environment. MATLAB figures have been used to visualize the simulation results of either control principles. Ill. 6, bibl. 14 (in English; abstracts in English and Lithuanian).