基于指令滤波的直驱永磁风机自适应有限时间反推控制

为解决额定风速以下直驱式永磁同步风力发电系统最大功率跟踪控制问题，提出一种基于有限时间指令滤波的自适应反推控制器。建立了直驱式永磁同步风力发电系统的动力学模型。引入高阶滑模微分器作为指令滤波器，并设计滤波补偿信号，解决了传统反推法中“计算爆炸”和控制器饱和问题，并保证有限时间收敛。使用自适应算法克服参数变化和系统未建模部分的影响，增强系统鲁棒性。利用Matlab/Simulink建立仿真模型，PI控制和反推控制器相比，克服了参数不确定性的影响，并具有更快的响应速度。

Finite-time Adaptive Backstepping Control of Direct-drive Permanent Magnet Wind Generator With Command-filter

Aiming at the maximum power point tracking control problem of direct-drive permanent magnet synchronous wind power generation system under rated wind speed,an adaptive finite-time command-filtered backstepping controller was designed.The dynamic model of direct drive permanent magnet synchronous wind power generation system was established.The higher-order sliding mode differentiator was introduced as command-filter to solve the saturation and expansion of controller in traditional backstepping control,while ensuring the finite time convergence.An adaptive algorithm was introduced to overcome the influence of parameter change and unmodeled part of the system,and enhance the robustness of the system.The simulation model of the system was established by using Matlab/Simulink.Compared with the traditional PI controller and backstepping controller,it overcomes the influence of parameter uncertainty and has faster response speed.