International Journal of Advancements in Electronics and Electrical Engineering
Author(s) : AJAY KUMAR BANSAL, R. A. GUPTA, RAJESH KUMAR, VIRENDRA SANGTANI
The direct torque control (DTC) scheme for a matrix-converter-fed induction motor drive system is a high performance motor control scheme with fast torque and flux responses. The main disadvantage of conventional DTC is electromagnetic torque ripple. Matrix converter is a single-stage ac-ac power conversion device without dc-link energy storage elements. Switching pattern of the different switches of matrix converter are generated by direct torque control scheme and by suitably selecting switching pattern, the electromagnetic torque ripple of the motor is effectively reduced. By this switching strategy, the advantages of the DTC schemes and the benefits of the matrix converters can be combined and as a result, a satisfactory servo drive can be achieved. This paper presents a literature survey on the direct torque control of matrix converter fed induction motor drive. Different techniques for DTCIMD are described and attempt is made to provide a guideline and quick reference for the researchers and practicing engineers those are working in the area of DTCIMD.