单相三电平有源电力滤波器控制策略研究  

Research on Control Strategy for Single Phase Three-level Active Power Filter

作　　者：谢丰[1] 何怡刚[1] 张金安[1] 王东楼 

机构地区：[1]合肥工业大学电气与自动化工程学院,安徽合肥230009

出　　处：《电气传动》2015年第6期51-55,共5页Electric Drive

基　　金：国家杰出青年科学基金(50925727);国防科技计划项目(C1120110004;9140A27020211DZ5102);教育部科学技术研究重大项目(313018);安徽省科技计划重点项目(1301022036)

摘　　要：将滑模控制策略运用于单相三电平有源电力滤波器中,取得了良好的控制效果。为了使电源电流为正弦波,首先建立单相有源电力滤波器的统一数学模型并分析其控制矢量图。然后计算等效控制量,根据等效控制量推导对应的矢量选择规则。此外,为了使直流侧电容电压保持均衡,通过对小矢量的选取把中点电流的积分值限制在极小的范围之内,从而使上下电容电压保持相等。最后,在Matlab/Simulink环境下对控制策略进行了仿真研究,仿真结果表明所提出的方法很好地抑制了谐波。Put forward a novel control strategy for single phase three-level active power filter（APF） by using the sliding mode control （SMC） technology and achieved good results. For the sake of optimal control goal to enable the source being sinusoidal, established the mathematical model for single phase APF, analyzed its control vectors and calculated equivalent control, then the corresponding vector selection rule was deduced based on the equivalent control. In addition , in order to make the DC side capacitors voltage be balanced, used the small vector to restrict the integral value of neutral current to a scope of minimal, then the voltage between the two capacitors were equal.The simulation in Matlab/Sinmulink was provided to verify the proposed control strategy , the simulation results show that the proposed method is good enough to suppress the harmonic.

关 键 词：三电平 有源电力滤波器 滑模控制 

分 类 号：TM464[电气工程—电器]