摘要
针对三相四开关有源电力滤波器(Three-phase Four-switch Active Power Filter,TFAPF)非线性强耦合的特点,设计了一种新型的基于多输入-多输出反馈线性化和空间矢量脉宽调制的控制器。首先推导出了三相四开关有源电力滤波器在d-q同步旋转坐标系下的数学模型。在此基础上,应用多输入-多输出反馈线性化的控制方法,实现了d-q坐标系下的有功电流和无功电流解耦控制。通过选取适当的反馈系数,得到有源电力滤波器交流侧的指令电压,采用三相四开关的空间电压矢量脉宽调制技术对指令电压进行逼近。通过MATLAB仿真分析,验证了所提方案的正确性和可行性。
As the three-phase four-switch active power filter （TFAPF） has the feature of nonlinearity and strong-coupling, a new controller based on multi-input multi-output （MIMO） feedback linearization and space vector pulse width modulation （SVPWM） is designed. First, the mathematical model of the three-phase four-switch APF in rotating d-q synchronous frame is derived. Based on the mathematical model, MIMO feedback linearization method is used to achieve the decoupling control of active and reactive compensation currents. The ac reference voltage can be obtained by selecting appropriate feedback coefficients, which can be approached by using the three-phase four-switch SVPWM method. MATLAB simulation is carried out to verify the validity and feasibility of the proposed control method.
出处
《控制工程》
CSCD
北大核心
2016年第7期1063-1068,共6页
Control Engineering of China
基金
国家自然科学基金资助项目(51377013
51407023)
中国博士后科学基金资助项目(2013M540224)
中央高校基本科研业务费专项资金资助项目(DUT13RC(3)23)
