مهندسی مکانیک مدرس

مهندسی مکانیک مدرس

Control of Variable Speed Wind Turbines: Comparing 1DoF Closed-Loop, PID, and Modified PID Controllers

نویسندگان
مهرناز گلپور 1
مجید ساده دل 1
حمیدرضا ترکستانی 2
1 دانشگاه تربیت مدرس-دانشکده مهندسی مکانیک
2 دانشگاه صنعتی امیرکبیر-دانشکده مهندسی مکانیک،
10.48311/mme.2025.24028
چکیده
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
کلیدواژه‌ها
Wind turbine
Rotational speed
Step Tracking
Modified PID Controller

موضوعات

عنوان مقاله English

Control of Variable Speed Wind Turbines: Comparing 1DoF Closed-Loop, PID, and Modified PID Controllers

نویسندگان English

Mehrnaz Golpour 1
majid sadedel 1
Hamidreza Torkestani 2
1 M.Sc. Graduate of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran
2 M.Sc. Graduate of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran
چکیده English

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

کلیدواژه‌ها English

Wind turbine
Rotational speed
Step Tracking
Modified PID Controller
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مهندسی مکانیک مدرس
دوره 25، شماره 5
اردیبهشت 1404
صفحه 253-260