Recent development in power semiconductor technology, digital electronics, magnetic materials and control theory have enabled modern AC motor drives to face challenging high efficiency and high performance requirements in the industry. The Permanent Magnet Synchronous Motors (PMSM) is becoming popular in high performance applications compared to other types of AC motors due to its advantages features including high torque to current ratio, higher efficiency, low noise and robustness [1]. Fuzzy logic control is one of the most interesting fields where fuzzy theory can be effectively applied. Fuzzy logic techniques attempt to imitate human thought processes in technical environments. This paper presents a study on fuzzy rule-base of fuzzy logic controlled permanent magnet synchronous motor (PMSM) drive. Fuzzy rule-base design is viewed as control strategy. All fuzzy rules contribute to some degree in obtaining the desired performance. However, some rules fired weakly do not contribute significantly to the final result and can be eliminated. In this case total 27 rules are designed. Simulation results that verify appropriateness of the approach are included. Fuzzy logic based motor stator condition monitoring control of PMSM drive is presented in this paper.

1. T. sabastial, G. R. Slemon and M. A. Rahman, "Modeling of Permanent Magnet Synchronous Motors", IEEE Trans on Magnetics, Vol. Mag-22, No. 5 , Sept. 1986, p 1069.
2. J. -W. Jung Y. -S. Choi, Leu H. H. Choi "Fuzzy PI-type current controllers for permanent magnet synchronous motors" V. Q. , IET Electric Power Applications, July 2010
3. T. A. Lipo, "Recent progress in the development of solid-state ac motor drives," IEEE Trans. Power Elecrron. , vol. 3, pp. 105-1 17, April 1988.
4. M. P. Kazmierkowski and W. Sulkowski, "A novel vector control scheme for transistor pwm inverter-fed induction otor drive," IEEE Trans. , Ind. Elec. , vol. 38, pp. 4147, Feb. 1991. M. P. Kazmierkowski, R. Krishnan, and F. Blaabjerg, Control in Power Electronics. New York, USA: Academic, 2002. .
5. N. Mohan, T. M. Undeland, and W. P. Robbins, Power Electronics. New York, USA: Wiley, 1995, 2nd ed.
6. P. C. Krause, Analysis of Electric Machinery, New York, McGraw Hill, 1996
7. Fuzzy logic toolbox, mathworks. com
8. Pillay P. , Krishnan R. , Modelling of Permanent Magnet Motor Drives, IEEE Transactions on Industrial Electronics, Vol. 35, November 1988, pp. 537-541
9. Faiz J. , Manoochehri M. , Shahgholia Gh. , Performance Improvement of a Linear Permanent Magnet Synchronous Drive using Fuzzy Logic Controller,Proceedings of the IEEE
10. LIU Ting-Ting. , TAN Yu. , WU Gang. , WANG Shu-mao. , Simulation Model of PMSM Vector Control System Based on Matlab/Simulink, Proceedings of the IEEE International Conference on Measuring Technology and Mechatronics Automation, 2009, pp. 343-346.
11. Life Science Journal 2012;9(1s) International Conference on Power System Technology, 2010, pp. 1-5.
12. Bhim Singh. , B. P. Singh. ,Sanjeet Dwivedi. , DSP Based Implementation of Hybrid Speed Controller for Vector Controlled Permanent Magnet Synchronous Motor Drive, IEEE ISIE. ,July 9-12, 2006, pp. 2235-2241
13. R. Krishnan. , Selection criteria for servo motor drives, IEEE Trans. ,Ind. App. , Vol. IA 23, March/April 1987, pp. 270-275.

Pmsm Fuzzy Logic Current Controller