摘要
基于backstepping的方法提出了一种应用于并联型混合有源电力滤波器(SHAPF)的控制方法。首先在三相静止坐标系中建立SHAPF的数学模型,然后变换到d-q坐标系下设计控制器。控制系统分为电流环和电压环分别进行控制,电流环通过使得李雅普诺夫函数的导数始终为负求得电流控制律,电压环采用PI控制器。直流侧电压能够稳定在80V,有效的降低了有源滤波器部分的容量。仿真和实验都验证了该算法有良好的稳态以及动态补偿效果。
Based on back-stepping, a kind of control method is proposed which is applied to SHAPE First, mathematic model of SHAPF is built in three phase static frame; and then this model is transformed into d-q frame and controller is designed in d-q frame. Control system is divided into current loop and voltage loop. In current loop, current control law is obtained by making the derivative of Lyapunov function negative. PI controller is utilized in voltage loop. DC voltage can stabilize on 80V which reduces the capacity of active power filter. Both simulation and experiment results verify the compensation effect of steady and dynamic state.
出处
《控制工程期刊(中英文版)》
2015年第1期1-8,共8页
Scientific Journal of Control Engineering
基金
山东省自然科学基金(ZR2011EEM024)、国家自然科学基金(11201179)支持资助