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Adaptive Repetitive Control for Periodic Disturbance Rejection with Unknown Period | ||
| International Journal of Industrial Electronics Control and Optimization | ||
| مقاله 8، دوره 3، شماره 2، تابستان 2020، صفحه 187-194 اصل مقاله (639.3 K) | ||
| نوع مقاله: Research Articles | ||
| شناسه دیجیتال (DOI): 10.22111/ieco.2019.31017.1197 | ||
| نویسندگان | ||
Hassan Farokhi Moghadam1؛ Nastaran Vasegh  2؛ Seyed Mohsen Seyed Moosavi1
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| 1Department of Electrical Engineering, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran | ||
| 2Electrical Engineering Faculty, Shahid Rajaee Teacher Training University, Lvizan, Tehran, Iran | ||
| چکیده | ||
| In this paper, an adaptive repetitive controller (ARC) is proposed to reject periodic disturbance with an unknown period. First, a repetitive controller is designed when the disturbance period is known. In this case, the RC time delay is equal to the period of disturbance. Then, the closed-loop system with the RC controller is analyzed and the effect of RC gain, k, is studied analytically. It is shown that by increasing k, the steady-state error is reduced. It is dependent on the speed of the response convergence. Secondly, an adaptive fast Fourier transform (AFFT) algorithm is proposed to extract the accurate period of disturbance adaptively. Simulation results show that the period is converged to its true value even though varying the period. Also, simulation results about the effect of controller gain are in good agreement with analytical results. Finally, it is shown that the proposed method can decrease the amplitude and energy of output signal significantly. | ||
| کلیدواژه‌ها | ||
| Optimization؛ Disturbance rejection؛ Adaptive Repetitive Control | ||
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آمار تعداد مشاهده مقاله: 166 تعداد دریافت فایل اصل مقاله: 142 |
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