摘要
为了提高有源滤波器的谐波补偿效果,设计了一种新型滑模控制器,用于三相三线制并联有源滤波器的参考电流跟踪控制。谐波电流检测方法采用基于瞬时无功功率理论的谐波电流检测方法,能快速、准确的检测出负载电流中的谐波分量。直流侧电压控制方法采用PI控制方法实现。Simulink仿真结果显示,与传统的滞环比较控制方法相比,所设计的新型滑模控制方法能够有效的降低跟踪误差,提高有源滤波器的谐波补偿效果。
In order to improve the harmonic compensation performance, a novel sliding mode controller is designed to implement the reference current tracking control in three-phase three-wire shunt active power filter. The harmonic detection method based on instantaneous reactive power theory is applied and the harmonic component in load currents can be extracted quickly and exactly. The PI control technique is used to control the stability of capacitor voltage in DC side. Simulation results reveal, compared to the hysteresis controller, the designed sliding mode controller can reduce tracking error obviously and improve the harmonic compensation effect.
出处
《电子设计工程》
2013年第23期66-68,72,共4页
Electronic Design Engineering
关键词
有源滤波器
滑模控制
谐波补偿
跟踪控制
active power filter
sliding mode control
harmonic compensation
tracking contro
