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

• Main Authors: Zeynep Bala Duranay, Hanifi Guldemir, Servet Tuncer
• Format: Article
• Language: English
• Published: Politeknik Elektronika Negeri Surabaya 2020-06-01
• Series: Emitter: International Journal of Engineering Technology
• Subjects: frequency control; induction motors; motor drives; speed control; variable speed drive
• Online Access: https://emitter.pens.ac.id/index.php/emitter/article/view/490

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.