基于高次谐波干扰的计算机电源净化技术  

Research on computer power purification technology of high harmonic disturbance

作　　者：张卫苓[1] 孟云侠[1] 

机构地区：[1]石家庄信息工程职业学院,河北石家庄050035

出　　处：《电源技术》2013年第1期138-140,共3页Chinese Journal of Power Sources

摘　　要：EMI电磁干扰是目前计算机电源稳定运行的主要干扰源之一,而EMI电磁干扰由多种高次谐波构成,成分复杂而多变。通过对目前供电电网中的各种高次谐波干扰的频谱分析,采用有源滤波器和LC无源滤波器相结合的治理方式。实验结果表明,采用有源滤波器和LC无源滤波器相结合的电源滤波净化方式,对消除相应的电磁干扰有良好的效果。这项研究成果对通信、电视、广播等领域的谐波治理有实际的指导作用。EMI electromagnetic interference is one of the main sources to interfere the stable operation of the computer power,composed of a variety of high-order harmonic with complex and varied components.In this paper,the spectrum of the various high harmonic interference in the power supply grid were analyzed,and the combination of active filter and passive LC filter was used to control the EMI electromagnetic interference.The experiment results show that the combination of active filter and passive LC filter can effectively eliminate the corresponding electromagnetic interference.

关 键 词：EMI电磁干扰 计算机电源谐波治理 滤波器 

分 类 号：TM154[电气工程—电工理论与新技术]