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Indirect Vector Control of Induction Motor Using Sliding-Mode Controller ABSTRACT: The paper presents a sliding-mode speed control system for an indirect vector controlled induction motor drive for high performance. The analysis, design and simulation of the slidingmode controller for indirect vector control induction motor are carried out. The proposed slidingmode controller is compared with PI controller with no load and various load condition. The result demonstrates the robustness and effectiveness of the proposed sliding-mode control for high performance of induction motor drive system.
KEYWORDS: 1. Indirect vector control 2. Sliding mode control 3. PI controller 4. Induction motor 5. Speed control
SOFTWARE: MATLAB/SIMULINK
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ELECTRICAL PROJECTS USING MATLAB/SIMULINK Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in
0-9347143789/9949240245 BLOCK DIAGRAM:
Figure 1: Indirect vector controlled induction motor drive
EXPECTED SIMULATION RESULTS:
Figure 2: Speed response of PI controller at no load
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Figure 3:Speed response of Sliding-mode controller at no load
Figure 4: Speed response of PI controller at load
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Figure 5: Speed response of Sliding- mode controller at load
Figure 6:X-Y plot of Rotor flux of PI controller
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Figure 7: x-v plot of Rotor flux of Sliding-mode controller
CONCLUSION: In this paper sliding-mode controller for the control of an indirect vector-controlled induction motor was described. The drive system was simulated with sliding-mode controller and PI controller and their performance was compared. Here simulation results shows that the designed sliding-mode controller realises a good dynamic behaviour of the motor with a rapid settling time, no overshoot and has better performance than PI controller. Sliding-mode control has more robust during change in load condition. .
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ELECTRICAL PROJECTS USING MATLAB/SIMULINK Gmail: asokatechnologies@gmail.com, Website: http://www.asokatechnologies.in
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REFERENCES: [1] B.K Bose "Modern power electronics and ac drives "Prentice-Hall OJ India, New Delhi, 2008. [2] M.Masiala;B.Vafakhah,;A.Knght,;J.Salmon,;"Performa nce of PI and fuzzy logic speed control of field-oriented induction motor drive," CCECE , jul. 2007, pp. 397-400. [3] F.Barrero;A.Gonzalez;A.Torralba,E.Galvan,;L.G.Franqu elo; "Speed control of induction motors using a novel Fuzzy-sliding mode structure,"IEEE Transaction on Fuzzy system, vol. 10, no.3, pp. 375-383, Jun 2002. [4] H.F.Ho,K.W.E.Cheng, "position control of induction motor using indirect adaptive fuzzy sliding mode control," P ESA, , Sep. 2009, pp. 1-5. [5] RKumar,R.A.Gupta,S.V.Bhangale, "indirect vector controlled induction motor drive with fuzzy logic based intelligent controller," IETECH Journals of Electrical Analysis, vol. 2, no. 4, pp. 211-216, 2008.
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