并联混合有源电力滤波器的新型控制方法  

Novel Control Method for Shunt Hybrid Active Power Filter

作　　者：徐帅[1] 孙晓云[2] 

机构地区：[1]包头铁道职业技术学院机车车辆系,内蒙古包头014160 [2]石家庄铁道大学电气与电子工程学院,石家庄050000

出　　处：《控制工程》2016年第8期1192-1196,共5页Control Engineering of China

基　　金：国家自然科学基金国际合作项目(51274144)

摘　　要：提出了一种新型滑模控制方法用于混合型并联有源电力滤波器中。通过对电网电流的有效控制,进而有效的抑制电网中电压变化以及由于电网中负载变化引起的谐波电流。首先介绍了HAPF的工作原理并建立了无变压器的HAPE数学方程,在此基础上设计了一种新型滑模控制算法,利用李雅普诺夫函数推导出该控制方法的稳定条件。仿真结果证明本文所提的控制方法能够有效抑制电网中的谐波电流,在同等条件下电磁干扰更小。A novel sliding mode control method for shunt hybrid active power filter is presented in this paper. The harmonic current caused by voltage and load change of the power grid is effectively suppressed through grid current control. Firstly, the working principle of HAPF is introduced and the mathematical equation of HAPF without transformers is also established. A novel sliding mode control algorithm is designed and its stability condition is derived by using Lyapunov function. The simulation results show that the control method proposed in this paper can effectively suppress the harmonic current in the power grid and obtain a smaller electromagnetic interference under the same condition.

关 键 词：有源电力滤波器 滑模控制 谐波电流 李雅普诺夫函数 

分 类 号：TM761[电气工程—电力系统及自动化]