The adaptive interval type-2 (IT2) fuzzy event-triggered saturation control scheme is proposed for a photovoltaic power system with unknown equivalent resistances and the disturbance of the power grid voltage. As the equivalent resistors and the disturbance are uncertain, interval type-2 fuzzy logic systems (IT2FLSs) are used to handle the uncertain nonlinear dynamics. Based on backstepping control design and command filtered techniques, by considering the limited communication resources of the system, an event-triggered saturation controller is designed, and the constraint conditions of the control signal are guaranteed. According to the Lyapunov theory, it is ensured that all the variables of the closed-loop photovoltaic system are bounded. The simulation results demonstrate the effectiveness and superiority of the presented control method.

针对具有未知等效电阻和电网电压干扰的光伏发电系统，提出了一种自适应区间2型（IT2）模糊事件触发饱和控制方案。由于等效电阻和干扰是不确定的，因此使用区间2型模糊逻辑系统（IT2FLS）处理不确定的非线性动力学。基于反推控制设计和命令过滤技术，考虑系统有限的通信资源，设计了事件触发的饱和控制器，保证了控制信号的约束条件。根据李雅普诺夫理论，可以确保闭环光伏系统的所有变量都是有界的。仿真结果证明了该控制方法的有效性和优越性。