电源学报
電源學報
전원학보
JOURNAL OF POWER SUPPLY
2012年
1期
76-79
,共4页
曹海洋%张玉成%朱启伟%郭攀峰
曹海洋%張玉成%硃啟偉%郭攀峰
조해양%장옥성%주계위%곽반봉
开关电源%电磁干扰%功率变换器%EMI滤波器
開關電源%電磁榦擾%功率變換器%EMI濾波器
개관전원%전자간우%공솔변환기%EMI려파기
switching power supply%EMI%power converter%EMI filter
开关电源由于其可靠性高、输出稳定等优点而广泛应用于电力电子系统中,但其自身产生的电磁干扰对整个系统的影响不容忽视。为了抑制开关电源所产生的传导电磁干扰,提出了集成EMI滤波的级联技术,并针对功率变换器的输出波形进行仿真。仿真实验结果表明:这种级联的集成EMI滤波器对谐波有良好的抑制作用。
開關電源由于其可靠性高、輸齣穩定等優點而廣汎應用于電力電子繫統中,但其自身產生的電磁榦擾對整箇繫統的影響不容忽視。為瞭抑製開關電源所產生的傳導電磁榦擾,提齣瞭集成EMI濾波的級聯技術,併針對功率變換器的輸齣波形進行倣真。倣真實驗結果錶明:這種級聯的集成EMI濾波器對諧波有良好的抑製作用。
개관전원유우기가고성고、수출은정등우점이엄범응용우전력전자계통중,단기자신산생적전자간우대정개계통적영향불용홀시。위료억제개관전원소산생적전도전자간우,제출료집성EMI려파적급련기술,병침대공솔변환기적수출파형진행방진。방진실험결과표명:저충급련적집성EMI려파기대해파유량호적억제작용。
Switching power supply is widely used in power electronic systems for its high reliability and stable output. Meanwhile, it should be recognized that the self-generated electromagnetic has a profound effect on the whole system. In order to suppress conducted interference generated by switching power supply, a cascaded technology about the integrated EMI filter was proposed and a simulation was carried out for the power converter output waveform. Experimental results show that the proposed cascaded technology about the integrated EMI filter has a good inhibition on the harmonic.