Study of The Direct Torque Control of Two （直接转矩控制的研究）.pdfVIP

International Journal of Recent Advances in Engineering Technology (IJRAET) _______________________________________________________________________________________________ Study of The Direct Torque Control of Two-Phase Induction Motor Using Two, Three and Four Leg Inverters 1Snehil M. Meshram, 2A. Y. Fadnis 1,2Department of Electrical Engineering, Yeshwantrao Chavan College of Engineering Nagpur, India Abstract - In this paper the study of the direct torque In first topology, the performance is not satisfactory but control of symmetrical two-phase induction motors using because of minimum number of switches, it is a low-cost different inverter topologies that is using two, three and approach. Two-leg inverter is applicable in applications four- leg inverters are reviewed. For controlling both the where the middle point of DC voltage is accessible. The electromagnetic torque and stator flux, essential equations middle point of the supply is created with two capacitors are discussed and the switching tables for two, three and four-leg inverters are presented. With respect to the control along with a voltage equalization circuit. The voltage of electromagnetic torque, different inverter topologies are equalization can be done by using resistors in parallel compared. It is reviewed that, the DTC of two-phase with capacitors. This increases the volume of the drive induction motors using two and three-leg inverters, the system and power loss [7]. torque control fails in some regions of stator flux. In DTC of two-phase induction motor using f