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مهندسی مکانیک مدرس، جلد ۲۵، شماره ۵، صفحات ۲۵۳-۲۶۰
عنوان فارسی Control of Variable Speed Wind Turbines: Comparing ۱DoF Closed-Loop, PID, and Modified PID Controllers
چکیده فارسی مقاله Effective control strategies are necessary for enhancing wind turbine efficiency and lifespan. The purpose of this paper is to control the rotational speed of a wind turbine by adjusting the pitch angle of the blades. Initially, a one-degree-of-freedom closed-loop controller is designed based on the complementary sensitivity function, followed by a PID and a modified PID controller. Finally, their performance in tracking the desired rotational speed of the wind turbine, which includes step and sinusoidal signals, is compared. The 1DOF controller introduced oscillation, while the PID controller eliminated oscillation but exhibited steady-state error. To preserve the advantages of the PID controller and eliminate steady-state error, an integrator term (1/s) has been added to the controller. Consequently, the modified PID controller has been designed. The results of the modified PID controller show no steady-state error or peak overshoot percentage for step inputs. While, the PID and the one-degree-of-freedom closed-loop controller in tracking the step reference input result in steady-state errors of 1.464% and 0.497% and peak overshoot percentages of 23.688% and 84.389%, respectively. During the implementation of the one-degree-of-freedom closed-loop controller, significant oscillations occur while tracking the desired input. The oscillations occurring in the rotor speed can lead to increased fatigue in various wind turbine components, which is an undesirable outcome. However, no oscillations are observed in rotor speed with the PID and modified PID controllers. Finally, according to the obtained results, the modified PID controller demonstrates superior performance compared to the other controllers in tracking the desired rotor speed
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Control of Variable Speed Wind Turbines: Comparing 1DoF Closed-Loop, PID, and Modified PID Controllers
چکیده انگلیسی مقاله Effective control strategies are necessary for enhancing wind turbine efficiency and lifespan. The purpose of this paper is to control the rotational speed of a wind turbine by adjusting the pitch angle of the blades. Initially, a one-degree-of-freedom closed-loop controller is designed based on the complementary sensitivity function, followed by a PID and a modified PID controller. Finally, their performance in tracking the desired rotational speed of the wind turbine, which includes step and sinusoidal signals, is compared. The 1DOF controller introduced oscillation, while the PID controller eliminated oscillation but exhibited steady-state error. To preserve the advantages of the PID controller and eliminate steady-state error, an integrator term (1/s) has been added to the controller. Consequently, the modified PID controller has been designed. The results of the modified PID controller show no steady-state error or peak overshoot percentage for step inputs. While, the PID and the one-degree-of-freedom closed-loop controller in tracking the step reference input result in steady-state errors of 1.464% and 0.497% and peak overshoot percentages of 23.688% and 84.389%, respectively. During the implementation of the one-degree-of-freedom closed-loop controller, significant oscillations occur while tracking the desired input. The oscillations occurring in the rotor speed can lead to increased fatigue in various wind turbine components, which is an undesirable outcome. However, no oscillations are observed in rotor speed with the PID and modified PID controllers. Finally, according to the obtained results, the modified PID controller demonstrates superior performance compared to the other controllers in tracking the desired rotor speed
کلیدواژه‌های انگلیسی مقاله Wind turbine,Rotational speed,Step Tracking,Modified PID Controller
نویسندگان مقاله مهرناز گلپور | Mehrnaz Golpour
M.Sc. Graduate of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
دانشگاه تربیت مدرس-دانشکده مهندسی مکانیک

مجید ساده دل | majid sadedel
Assistant Professor, Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran.
دانشگاه تربیت مدرس-دانشکده مهندسی مکانیک

حمیدرضا ترکستانی | Hamidreza Torkestani
M.Sc. Graduate of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran
دانشگاه صنعتی امیرکبیر-دانشکده مهندسی مکانیک،

نشانی اینترنتی http://mme.modares.ac.ir/browse.php?a_code=A-10-82763-3&slc_lang=fa&sid=15
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