飞机电网有源电力滤波技术

提出了一种适用于飞机电网的三相四线并联有源电力滤波器来实现电网谐波、无功和不平衡电流的集中补偿。针对飞机电网为独立小容量电源系统,电源内阻抗比较大的特点,选择用改进的交叉矢量算法进行补偿电流基准的检测计算。采用滞环电流控制实现较高频率电源系统的电流瞬时补偿并对直流侧电压进行稳压调节。仿真和实验结果证明,采用本文提出的有源滤波器能对飞机电网电流进行集中净化,具有较好的补偿效果,证实了飞机APF的可行性和正确性。

Shunt Active Power Filter for Aircraft Power Utility

A shunt active power filter with three-phase four-leg topology for aircraft ac power system is proposed.Aimed at the un-negligible inner impendence of the independent low power utility,the improved cross-vector scheme for the current reference generation is presented.The real time current compensation is realized by the hysterisis current control and the dc side voltage active power filter(APF) is regulated.Simulation and experimental results verify the compensation performances of harmonics,reactive and unbalance power filter for the aircraft shunt active filter.