A NOVEL DESIGN AND IMPLEMENTATION OF THREE-PHASE RECTIFIER-INVERTER FOR DFIG IN WIND POWER APPLICATIONS

Abstract

Abstract- The three-phase grid connected converter is most widely used in renewable and wind power applications. A study of the literature shows that there are some limitations in the conventional standard vector control method. The other researchers have found out some of these limitations. It is found in many research papers that still there exist a limitation in the conventional vector control technique.
This paper proposes a new enhanced fuzzy control method for rectifier –inverter model. The merits of both the conventional and the proposed control methods are compared and evaluated in a laboratory hardware experiment environments. The results shows that fuzzy control approach is effective for grid connected power converter control in a wide range of system conditions.

Keywords

• Power converter; fuzzy logic; rectifier –inverter; Direct current vector control

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22. Mrs. P. Suganya received
23. B.E., M.Tech., and pursuing
24. Ph.D. Her areas of interest
25. are power electronics, Fuzzy
26. and Control Systems. She
27. is continuing the teaching
28. services since sixteen years.
29. She published journal papers
30. under her specialization.
31. Dr. N. Rengarajan received
32. B.Sc., B.Tech., M.E.,Ph.D.
33. His areas of specialization
34. are Power System Control,
35. Power Electronics, ANN,
36. Fuzzy and Control Systems.
37. He is continuing the teaching
38. services for more than two
39. decade. He also holds industrial experiences for 5
40. years as in Tata Consultant System. He published
41. several journal papers under his Specialization.