Raouf Amir Hossein, Yazdiniya Fatemeh Sadat, Ansarifar Gholam Reza
Department of Nuclear Engineering, Faculty of Physics, University of Isfahan, Isfahan, Iran.
Department of Mechanical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran.
Heliyon. 2024 Aug 17;10(16):e36428. doi: 10.1016/j.heliyon.2024.e36428. eCollection 2024 Aug 30.
This paper proposed a new method for maximum power point tracking in photovoltaic power generation systems by combining super-twisting sliding mode control and active disturbance rejection method. An incremental guidance method is used to find the point of maximum power. The non-linear extended state observer is applied to estimate the unmodeled dynamics and external disturbance. The ADRC based on a super-twisting sliding mode is designed to bring the state variables to the desired state. In the next step, the stability of NESO and ADRC are theoretically proved. Finally, the simulation results have been compared with the results of the PI controller, classical sliding mode control, and terminal sliding mode control (TSMC) presented in other articles. The results show the effectiveness and superiority of the proposed method. Also, to check the performance of the proposal method in real-time, real-time results have been compared with non-real-time results. The results obtained from the real-time and non-real-time simulations exhibited a minimal difference. This fact indicates the high accuracy of the modeling and simulations performed. Indeed, the mathematical models and non-real-time simulations have been able to accurately mimic the actual behavior of the photovoltaic system under various operating conditions.
本文提出了一种将超扭曲滑模控制与主动抗扰方法相结合的光伏发电系统最大功率点跟踪新方法。采用增量引导法来找到最大功率点。应用非线性扩展状态观测器来估计未建模动态和外部干扰。基于超扭曲滑模设计的主动抗扰控制将状态变量带至期望状态。下一步，从理论上证明了非线性扩展状态观测器和主动抗扰控制的稳定性。最后，将仿真结果与其他文章中提出的比例积分（PI）控制器、经典滑模控制和终端滑模控制（TSMC）的结果进行了比较。结果表明了所提方法的有效性和优越性。此外，为了实时检验所提方法的性能，将实时结果与非实时结果进行了比较。从实时和非实时仿真中获得的结果差异极小。这一事实表明所进行的建模和仿真具有很高的准确性。实际上，数学模型和非实时仿真能够准确模拟光伏系统在各种运行条件下的实际行为。
