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The Required Voltage Compensation to Overcome the Effect of Changing Flux and Back-emf in Squirrel Cage Three Phase Induction Motor Drives

Adil Omar Ahmed1,a,   Alaa M. Abdulrahman2,a

University of Sulaimani, College of Engineering, Electrical  Engineering Department

Received  7 August  2019,      Accepted 16 April 2020,      Published Available online 1 June 2020


This paper demonstrates the design and development of decoupling method in vector control induction motor. Three-phase induction motor is one of the most electric devices which is widely used in industrial applications. One of the most problems at high power application is controlling the transient current to protect the motor from damage. Various control schemes have been used however vector control is the most promised one which is used nowadays for the control purposes. A motor model for 1.5kW three phase squirrel cage induction is chosen for the design. In vector control three phase current is represented with two phase which are d-axis and q-axis. At first, current control for each axis is designed, later decoupling between them is shown and described. Matlab Simulation is used to validate the design and to show the results.


Induction motor, decoupling, 3-phase conversion


1- Gonen Turan. Electrical Machine with Matlab. second edition 2012

2- Shakuntla Boora, S. K Agarwal, K. S Sandhu. Dynamic d-q axis modeling of three-phase asynchronous machine using matlab. International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering, Vol. 2, pp. 3942-3951, 2013.

3- K.L. Shi, T.F. Chan, Y. K. Wong and S. L. Ho. Modeling and simulation of the three-phase induction motor using simulink. International Journal of Electrical Engineering Education, vol. 36, pp. 163- 172, 1999.

4- Vithayathil, J. Power electronics: principles and applications. McGraw-Hill International, 2006

5- Ramon C. Orost, Guillermo O. Forte, Luis Canali. Scalar Speed Control of dq Induction Motor Model Using Fuzzy Logic Controller. 2007

6- Lee, R.J., Pillay, P., and Harley, R.G.. D-Q Reference frame for the simulation of induction motors. Electric Power Systems Research Journal, vol. 8, pp. 15-16, October 1984.

7- Shah, S., Rashid, A. and Bhatti, M.K.L., 2012. Direct quadrate (dq) modeling of 3-phase induction motor using matlab/simulink. Canadian Journal on Electrical and Electronics Engineering, 3(5), pp.237-243.

8- Duesterhoeft, W.C., Schulz, M.W. and Clarke, E., 1951. Determination of instantaneous currents and voltages by means of alpha, beta, and zero components. Transactions of the American Institute of Electrical Engineers, 70(2), pp.1248-1255.