Modeling, Simulation and Implementation of a Five-Phase Induction Motor Drive System

 ABSTRACT:  

This paper presents a comprehensive simulation model of a five-phase induction motor drive system. Both open loop and closed-loop control is elaborated. The complete component modeling is developed using ‘simpower system’ blocksets of Matlab/Simulink. To address the real time implementation issues, dead banding of the inverter switches are also incorporated in the simulation model. To validate the modeling procedure, experimental implementation is done in TMS320F2812 DSP platform with a custom built five-phase drive system. Excitation, acceleration and loading transients are investigated. The developed simulation model is fully verified by the real time implementation.

 KEYWORDS:

1.      Five-phase drive

2.      V/f control

3.      Induction motor

 SOFTWARE: MATLAB/SIMULINK

 BLOCK  DIAGRAM:

 

Fig. 1. Constant V/F control scheme for a five-phase drive.

   EXPERIMENTAL RESULTS:

 

Fig. 2. Speed response for open-loop constant v/f control at no-load.

Fig. 3. Speed response for constant v/f control at rated load operating at

1500rpm

Fig. 4.(a) Speed response of a five-phase IM for open loop constant v/f

control at no-load (three step rising and one step fall).

 

Fig. 4.(b) Speed response of a five-phase IM for open loop constant v/f

control at no-load(step rising)

Fig. 5. Speed response of a five-phase IM for open loop constant v/f

control at rated load operating at 1500rpm

 

Fig. 6. Speed response for closed-loop constant v/f control of a five-phase

Induction motor.

 

CONCLUSION:

This paper presents a complete simulation model to simulate a five-phase induction motor drive system for constant v/f speed control method. The simulation model is developed using simpower system block sets of the Matlab/Simulink software. Step by step model development is elaborated. Dead banding in the simulation procedure is presented. A detailed simulation results are presented to validate the modeling procedure. Experimental set up is discussed and the experimental results are provided to exactly match the results obtained using simulation. This proves the successful implementation of the control scheme.

 REFERENCES:

[1] D. Novotony, and T.A. Lipo, Vector control and dynamics of ac drives, Clarendon Press, Oxford, UK, 2000.

[2] A.M. Trzynadlowski, The field oriented Principle in Control of Induction motors, Kuluwer Press, 1994.

[3] I. Boldea and S.A. Nasar, Vector Control of AC Drives, CRC Press, London, 1992.

[4] D.C. White and H.H. Woodson, Electromechanical energy conversion, John Wiley and Sons, New York, 1959.

[5] S.A. Nasar and I. Boldea, The Induction Machine Handbook, CRC Press, London, 2002.