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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: 141 تعداد دریافت فایل اصل مقاله: 125 |
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