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Register a new userComputerized Modeling of Variable Speed Wind Turbines and developing its control systems
النمذجة الحاسوبية للعنفات الريحية متغيرة السرعة و تطوير أنظمة التحكم فيها
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Tishreen University ورقة بحثية
Publication date
2015
fields
Electrical Power Engineering
and research's language is
العربية
Authors
زياد هرموش( باحث )
Created by
Shamra Editor
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إن هدف التحكم بالعنفات هو الحصول على الحد الأعظمي من الطاقة المأخوذة من الرياح في الوقت الذي يتم فيه انقاص الأحمال الميكانيكية. إن تقنيات التحكم الحالية لا تأخذ بالحسبان الجانب الديناميكي للريح و للعنفة, و هذا يؤدي إلى خسائر مهمة في الطاقة, إضافة إلى كونها ليست فعالة. لذلك و من أجل إدخال بعض التحسينات على تقييم الفعالية التطبيقية للمتحكمات اللاخطية، يمكن اشتقاق متحكمات التغذية العكسية للحالتين الستاتيكية و الديناميكية اللاخطيتين و ذلك بالنسبة لمُقِّيم سرعة الريح، ثم اختبار المتحكمات وفقاً لنموذج رياضي تم تطبيقه على محاكي عنفة ريحية بوجود اضطرابات و ضجيج قياسي. أظهرت النتائج فعلياً تحسناً مهماً بالمقارنة مع المتحكمات الخطية المستخدمة حالياً.
The turbine control purpose is to achieve the maximum limit of wind power, associated with reducing the mechanical loads. The current control techniques do not take into consideration the dynamical side of wind and turbine, which leads to power loss. To improve the effectiveness of the nonlinear controllers, we can derive the nonlinear feedback controllers for static and dynamic conditions in order to reach the wind speed estimator. Then we can test the controllers by a mathematical model applied on the wind turbine simulator, with disturbances and noise. The results have shown important improvements in comparison with the current used controllers.
References used
L. V. Divone, Evolution of modern wind turbines, pp.73-183.David A. Sepra,amse press ed., 1995
X. Ma. Adaptive extremum control and wind turbine control. PhD thesis, Technical University of Denmark, 1997
M.M. Hand and M.J. Balas, “Non-linear and linear model based controller design for variable-speed wind turbine,” pp.1-8.NREL Report 2010
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