Control Logic Algorithm for Medium Scale Wind Turbines
Recently, sustainable attention has been drawn to renewable energy sources. Wind energy systems as renewable source of energy have been extensively studied because of its benefits as an environmentally friendly clean energy, inexhaustible, safe and a low-cost for long term. Because of its unpredictable availability, power management control algorithms are essential to extract as much power as possible from the wind during its availability durations. This paper is motivated for proposing the main control algorithm for wind turbines each incorporating two generators. The proposed main algorithm contains several sub algorithm models (strategies) for power control, pitch control, status checking, starting, grid connection, normal and emergency shutdown that are studied, designed and also, tested under operation. The testing phase shows that in the high wind speed range, the pitch control seems the most relevant to release a power margin. While in the low wind speed range, the increase of the rotation speed is more convenient.
Keywords: wind turbine, control logic algorithm, pitch control, status checking, starting, grid connection, normal shut down, and emergency shutdown
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ABOUT THE AUTHORS
Osama Abdel Hakeem Abdel Sattar
Production Research Center Manager in A.O.I.E.F. and wind turbine Designer in A.O.I
R. R. Darwish
she is an associative professor in the Department of Mechatronics at the Faculty of Engineering, Helwan University, Egypt.
Saad Mohamed Ali Eid
Professor of Control Engineering, Faculty of Engineering, Univ. of Cairo. He is Author of 70 and/or Co-author of 200 scientific papers.
Elsayed Mostafa Saad
Professor of Electronic Circuits, Faculty of Engineering, Univ. of Helwan. He was an International scientific member of the ECCTD, 1983. He is Author and/or Co-author of 132 scientific papers. He is a member of the national Radio Science Comittee, member of the scientific consultant committee in the Egyptian Eng. Syndicate for Electrical Engineers, till l May 1995, Member of the Egyptian Eng. Sydicate, Member of the European Circuit Society (ECS), Member of the Society of Electrical Engineering(SEE).
Osama Abdel Hakeem Abdel Sattar
Production Research Center Manager in A.O.I.E.F. and wind turbine Designer in A.O.I
R. R. Darwish
she is an associative professor in the Department of Mechatronics at the Faculty of Engineering, Helwan University, Egypt.
Saad Mohamed Ali Eid
Professor of Control Engineering, Faculty of Engineering, Univ. of Cairo. He is Author of 70 and/or Co-author of 200 scientific papers.
Elsayed Mostafa Saad
Professor of Electronic Circuits, Faculty of Engineering, Univ. of Helwan. He was an International scientific member of the ECCTD, 1983. He is Author and/or Co-author of 132 scientific papers. He is a member of the national Radio Science Comittee, member of the scientific consultant committee in the Egyptian Eng. Syndicate for Electrical Engineers, till l May 1995, Member of the Egyptian Eng. Sydicate, Member of the European Circuit Society (ECS), Member of the Society of Electrical Engineering(SEE).
