Adaptive _Robust sliding mode controller design for maximum power extracting in wind turbine power extracting

نوع: Type: thesis

مقطع: Segment: masters

عنوان: Title: Adaptive _Robust sliding mode controller design for maximum power extracting in wind turbine power extracting

ارائه دهنده: Provider: اسماعیلی علیرضا

اساتید راهنما: Supervisors: Dr . Seyyed Manuchehr Hoseini & Hamidreza Karami

اساتید مشاور: Advisory Professors: Dr. Mohammad Amin Ghasemi

اساتید ممتحن یا داور: Examining professors or referees: Dr Abbas Ramezani & Dr.Majid Ghanii

زمان و تاریخ ارائه: Time and date of presentation: 2022/12/03

مکان ارائه: Place of presentation: virtual

چکیده: Abstract: Due to the increasing demand for energy and due to the problems caused by fossil fuels consumption such as pollution of the environment, global warming, limited value and high priced, the use of renewable energy has increased dramatically in the world. On the other hand, the required equipment for using wind energy is very expensive and costly, so increasing the gain and increasing the efficiency of electrical energy production is very important. Maximum Power Point Tracking (MPPT) in wind turbines is one of the most efficient methods to increase the efficiency of electrical energy production which is addressed in this thesis. In this thesis, by designing a sliding mode controller, the speed of turbine is controlled so that it can be extracted from it. The main reason of sliding mode controller is that the wind turbine system is a system with many non - linear factors. On the other hand, the challenge of overcoming the disturbances and uncertainties requires that the control system has the conditions suitable for the nonlinear system. The turbine used in this study is the type of Permanent Magnet Synchronous Generator (PMSG). In this thesis to increase the robustness of the controller against uncertainty and disturbance, the adaptive of the discrete term in the controller design is considered. It should be noted that maximum power extraction algorithms in this research, the Tip speed ratio (TSR) method is used. Finally, the obtained results have been investigated by simulation in MATLAB software. the results of the simulation show that the tracking speed in the proposed system has decreased from one second in the sample of previous work to half a second , and it is no longer necessary to determine the high band of disturbance , and by using the proposed method , the chattering phenomenon has been reduced significantly . Key Words: MPPT,TSR, wind turbine , PMSG, variable speed Wind turbine, sliding mode controller, Maximum power Point tracking, the Tip speed ratio, robust adaptive control