This paper deals with maximum power point tracking control (MPPT) of wind turbines systems based on double fed induction generator (DFIG). To minimize the variable and random character of wind speed impact on the wind turbine system, a maximum power point tracking algorithm based on sliding mode control is proposed. The MPPT algorithm is designed with sliding-mode control theory, this solution shows good robustness with respect to parameter variations, measurement errors and robustness with respect to external disturbances and unmodeled dynamics (DFIG-WT). A comparative study is elaborated using PI, first and second order sliding mode controllers. The simulation results confirm the effectiveness of the proposed approach either in transient and steady state.

中文翻译：

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基于双馈感应发电机的风电系统二阶滑模最大功率点跟踪

本文研究了基于双馈感应发电机（DFIG）的风力涡轮机系统的最大功率点跟踪控制（MPPT）。为了最小化风速对风力发电机系统影响的可变性和随机性，提出了一种基于滑模控制的最大功率点跟踪算法。MPPT算法是采用滑模控制理论设计的，该解决方案在参数变化，测量误差和外部干扰以及非建模动力学方面都具有良好的鲁棒性（DFIG-WT）。使用PI，一阶和二阶滑模控制器进行了比较研究。仿真结果证实了该方法在瞬态和稳态下的有效性。