一种新型的有源电力滤波器直接功率控制方法  

A novel APF direct power control approach

作　　者：沈玲菲[1] 危韧勇[1] 徐保友[1] 李志勇[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410083

出　　处：《电力系统保护与控制》2013年第4期91-96,共6页Power System Protection and Control

基　　金：中央高校基本科研业务费(201021200066)~~

摘　　要：提出了一种新型的有源电力滤波器恒频直接功率控制方法,该算法直接采用电源功率对APF进行控制,从而省略了负载谐波和无功的检测及计算环节,提高了控制的可靠性、降低了成本;采用恒频直接功率控制保证了开关频率固定,提高了系统的动态性。另外分析了直流侧电压与功率损耗以及补偿能力之间的关系,应用下垂控制器获得直流侧电压控制参考值,从而实现APF的有功功率损耗与补偿性能的综合优化。仿真结果验证了该方法的正确性与有效性。This paper proposes a novel APF constant frequency direct power control approach. The approach adopts source power to control APF, omits the load detection and calculation part, improves the control reliability and reduces the cost. And it adopts constant frequency DPC to achieve constant switch frequency and high-dynamic. Moreover, it analyzes the relationship between DC link voltage and power loss and APF compensation, then adopts the droop controller to achieve a comprehensive optimization between active power loss and the compensation performance of APF. Simulation results prove the validity and feasibility of the control approach.

关 键 词：有源电力滤波器 电源功率 恒频直接功率控制 下垂控制 

分 类 号：TM76[电气工程—电力系统及自动化] TN713.8[电子电信—电路与系统]