飞机电源系统恒功率电子负载的EMI滤波器设计

功率开关装置驱动的电动机控制系统,作为飞机电源的负载时必须采用EMI滤波器,以消除对电网的高频噪声。由于闭环系统为电源的恒功率负载,有负阻抗特性,在EMI滤波器的设计中,必须考虑系统的稳定性。该论文研究了这种恒功率电子负载的EMI滤波器设计方法,给出了滤波器参数的约束条件。

The Design of EMI Filter for Electrical Constant Power Loads of Aircraft Power System

In power systems of a aircraft , the motor control system by power switch device driven, the EMI filter should be used to reduce the high frequency noise for the power net. Because the systems of closed loop are the constant power loads of the power systems, and they have a negative impedance characteristic, the stability of the power system must be considered. In this paper, a design method of the EMI filter is researched, a stability criteria and a restrict condition of the filter parameter are given.