Field Oriented Control of 3 Phase Induction Motor

Abstract

Field-Oriented Control (FOC), allows high performance of the induction motor drive by using vector control to overcome the coupling effect and inferior dynamic response of scalar control. The basic idea of the vector control is to decompose a stator current into a magnetic field-generating component (ids) and a torque generating component (iqs) and both components can be separately controlled to make the performance of the AC machine similar to that of DC machine. The instantaneous current magnitude and position of the rotor flux space vector must continuously be known with precision in order to achieve and maintain perfect field orientation. The effectiveness of the proposed control method is verified by using MATLAB/SIMULINK Software and results are presented to validate the effectiveness of topology.