Implementation of a V/f Controlled Variable Speed Induction Motor Drive

Keywords: frequency control, induction motors, motor drives, speed control, variable speed drive


DSP implementation of speed control of three phase induction motor drive is presented in this paper. A closed loop speed control has been achieved using constant V/f technique which is a simple scalar control method used to control the magnitude of the control quantities. In this study, a fourth order polynomial drived from V/f curve is constructed instead of using look up table which takes much time for determination of voltage from frequency value. A PI controller is used in speed control.  dSPACE DS-1103 controller board is used for the implementation with Matlab/Simulink, which has a simple real time interface. Steady-state speed characteristics and transient responses with various reference speed commands are presented by experimental system.  The simulation and experimental results provide a smooth speed response and good performance under various dynamic operations. Real time speed control has been implemented and some results are presented.


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How to Cite
Duranay, Z. B., Guldemir, H., & Tuncer, S. (2020). Implementation of a V/f Controlled Variable Speed Induction Motor Drive. EMITTER International Journal of Engineering Technology, 8(1), 35-48.