摘要
提出一种基于磁通补偿原理和谐波电流分流技术的新型并联混合型有源电力滤波器,并推导了这一新理论。这种新型滤波器通过拓扑结构的改变,使电网中的谐波电流流入三绕组变压器的两个线圈,在变压器铁芯中产生的谐波磁通部分补偿,未完全补偿的部分由APF产生的谐波电流的磁通进行补偿,最终达到减小APF容量的目的。在此基础上,利用MATLAB对这种新型滤波器的稳态和暂态的特性进行了仿真研究,并与传统并联混合型电力滤波器APF容量的计算比较,证明了该原理的正确性。
A novel shunt hybrid active power filter based on the principle of magnetic flux compensation and the shunt technology of harmonic current is proposed and analyzed in this paper. Changes of topology in the novel filter guarantee that harmonic current from network flows into the three-winding transformer, Harmonic magnetic flux caused by harmonic current in the transformer core is partly compensated.The part that hasn＇t completely been compensated is compensated by the harmonic magnetic flux caused by harmonic current from APF,and APF capacity can be reduced finally. On top of this principle ,transient and steady-state characteristics are simulated and analysed by MATLAB in the paper. Compared with APF capacity of conventional shunt hybrid active power filter, the principle is correct.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2008年第13期37-42,共6页
Power System Protection and Control
