Abstract
In this paper, we aim to stabilize and improve the performance of the system which includes time-delay elements in closed-loop system and uncertainty of the wind turbine system. Time-delay will happen during the long distance communication. By observing and controlling the attitude of wind turbine system from distance, the transmitted control input and output signal will be delayed certainly. For this reason it will be an unstable system by time-delay elements. So, here we consider Internal Model Controller (IMC) method which is one of the robust controllers. IMC method is composed of optimum controller and uncertainty model of plant and time-delay elements. The optimum controller is designed by minimizing the coefficients of external disturbance of output signal by H2 norm in order to stabilize the closed loop system considering the uncertainty of plant and predicted time-delay element and at the same time minimize the effects of time-delay element in sensitivity function. In this research controlling of the angular velocity and pitch angle of blade is considered. As consequences, angular velocity had better performance in nominal case compare to non-nominal case.
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Asharif, F., Tamaki, S., Nagado, T., Tomokazu, N., Alsharif, M.R. (2012). Evaluation of Internal Model Controller in Time and Frequency Domain on Application to Wind Turbine. In: Sambath, S., Zhu, E. (eds) Frontiers in Computer Education. Advances in Intelligent and Soft Computing, vol 133. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27552-4_58
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DOI: https://doi.org/10.1007/978-3-642-27552-4_58
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-27551-7
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