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由于存在开关器件,有源电力滤波器(Active Powe Filter,APF)本身就是一个变结构系统。以并联型有源电力滤波器作为研究对象,在分析系统数学模型的基础上将APF系统等效为一个一阶系统,并提出了利用积分滑模控制对APF输出进行控制的方法。在控制过程中可以很容易地获得切换函数和控制律,并提高系统的鲁棒性,解决了传统滑模控制中存在的抖振问题。该控制算法简单且容易
Active Powe Filter (APF) itself is a variable structure system due to the presence of switching devices. Taking parallel shunt active power filter as the research object, the APF system is equivalent to a first-order system based on the analysis of the mathematical model of the system, and a method of controlling the APF output by using integral sliding mode control is proposed. In the control process, the switching function and the control law can be easily obtained, and the robustness of the system is improved, and the chattering problem existing in the traditional sliding mode control is solved. The control algorithm is simple and easy