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 sliding-mode controller for indirect vector control induction
motor are carried out. The proposed sliding-mode 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
BLOCK DIAGRAM:
Figure
1: Indirect vector controlled induction motor drive
EXPECTED SIMULATION RESULTS:
Figure 2: Speed response of PI controller at no load
Figure 3:Speed response of Sliding-mode controller at no load
Figure 4: Speed response of PI controller at load
Figure 5: Speed response of Sliding- mode controller at load
Figure 6:X-Y plot of Rotor flux of PI controller
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.
.
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.
