面向加固计算机的低频传导发射抑制技术研究

Research on the control of low-frequency conduction emission with power line of the ruggedized computer

针对加固计算机低频传导发射抑制困难、无法满足电磁兼容性能的问题,在阐述加固计算机谐波产生机理的基础上,通过分析主动式和被动式功率因数校正方法及加固计算机的特点,提出了基于储能方式的被动式功率因数校正方法,并结合加固计算机的结构形式特点,形成了研制6U电抗器模块的思路。通过试验验证,该方法能有效抑制加固计算机低频传导发射,满足了国家军用标准中对加固计算机低频传导发射的要求。

Aiming at low-frequency conduction emission with the ruggedized computer,it introduces the mechanism of harmonics,analyzes the passive power factor correction,active power factor correction and the characteristic of ruggedized computer.Based on passive power factor correction and saving energy,it combines the especial structure of ruggedized computer and proposes the module of reactor with 6U.The result of test shows that the method satisfies the electromagnetic compatibility.