Abstract Maximum Power Point Tracking (MPPT) strategy is necessary to extract the maximum power production of a Photovoltaic (PV) system. Since the PV has nonlinear dynamics, it is more suitable to use a nonlinear MPPT controller to improve the tracking efficiency. The modelling and control of most systems in real-time are not fully precise and introduce some variations such as : the steady state error and ripples in the system outputs. In this paper, a classical sliding mode controller has been designed and applied experimentally to the PV system to achieve the Maximum Power Point (MPP). The results show that the system responses present chattering phenomena with no negligible state error. In order to reduce these drawbacks (chattering and steady-state error), an Integral Backstepping combined with a discontinuous Sliding Mode Controller (IBSMC) is proposed and applied experimentally to the PV system. The obtained experimental results for the two controllers are compared under the same weather conditions, in terms of chattering phenomena and state error. As a result, the proposed hybrid controller (IBSMC) has achieved high dynamic system performances. Moreover, the stability of this system has been proved using Lyapunov stability criteria.

中文翻译：

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体验式积分反步滑模控制器实现光伏系统最大功率点

摘要 最大功率点跟踪 (MPPT) 策略对于提取光伏 (PV) 系统的最大功率产生是必要的。由于 PV 具有非线性动力学特性，因此更适合使用非线性 MPPT 控制器来提高跟踪效率。大多数系统的实时建模和控制并不完全精确，并且会引入一些变化，例如：系统输出中的稳态误差和纹波。在本文中，一个经典的滑模控制器已被设计并通过实验应用于光伏系统，以实现最大功率点 (MPP)。结果表明，系统响应呈现颤振现象，状态误差不可忽略。为了减少这些缺点（抖动和稳态误差），提出了与不连续滑模控制器 (IBSMC) 相结合的积分反步法，并通过实验将其应用于光伏系统。两种控制器在相同天气条件下获得的实验结果在颤振现象和状态误差方面进行了比较。因此，所提出的混合控制器（IBSMC）实现了高动态系统性能。此外，使用李雅普诺夫稳定性准则证明了该系统的稳定性。