期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
期号：ICIET
页码：508
出版社：S&S Publications
摘要：Direct Torque Control is most widelyused in industrial standard for high power inductionmotor drives. The conventional DTC method uses thehysteresis-based voltage switching method which hassome drawbacks of higher torque ripple and speedpulsation. The main aim of the paper is to obtain theenhanced torque control and smooth flux trajectory. Theproposed approach uses the sensorless drive which isincorporated in Direct Torque Control to improve theperformance. Sensorless drive eliminates the shaftmounted speed encoder which is undesirable in a drivebecause it increases the cost and reliability problems.Sensorless method is used to estimate the speed signalwith the help of machine terminal voltages and currents.The proposed method is simulated with the help ofMATLAB and result shows that performances areimproved.
