微型断路器电动操作系统的电磁兼容性设计  

EMC Design of Electric Operating System for Miniature Circuit Breaker

作　　者：刘剑滨 姜岩峰 李莎[1] 张喆 LIU Jian-bin;JIANG Yan-feng;LI Sha;ZHANG Zhe(Jiangsu Key Construction Laboratory of Iot Application Technology,Wuxi Taihu University,Wuxi,Jiangsu 214064,China;Engineering Research Center of the Ministry of Education of Internet of Things Applied Technology,Jiangnan University,Wuxi,Jiangsu 214122,China)

机构地区：[1]无锡太湖学院江苏省物联网应用技术重点建设实验室,江苏无锡214064 [2]江南大学物联网应用技术教育部工程研究中心,江苏无锡214122

出　　处：《电子学报》2020年第5期914-921,共8页Acta Electronica Sinica

基　　金：江苏省高等学校自然科学研究项目(No.18KJB510045);江苏省物联网应用技术重点建设实验室资助项目(No.18WXWL05)。

摘　　要：为实现对微型断路器误动作的弥补,本文设计了一种与微型断路器配套使用的电动操作系统.该设计属于机电一体化产品,测试标准对标欧盟家用电器、电动工具或类似器具的电磁兼容标准EN55014.本文重点关注其中4类指标:发射干扰EMI(Electron-Magnetic Interference),抗干扰性EMS(Electron-Magnetic Susceptibility),谐波干扰Harmonic,电压扰动Flicker.通过设计高集成、谐波强衰减、高抗浪涌能力的低通滤波器,采用准谐振软开关技术及分时变频的控制策略,优化的PCB(Printed Circuit Board)布局布线,实现对电磁兼容性的优化,并在第三方检测机构测试通过,获得CE认证.An electric operation system matched with the miniature circuit breaker is designed in order to compensate for the mis-operation of miniature circuit breaker.The breaker is a kind of mechatronic products and European Union EMC standard EN55014 is required.For the design in the paper,four characteristics are mostly concerned:EMI,EMS,Harmonic and Flicker.The strategies in the design include three aspects.The first one is using the low-pass filter with high integration,strong harmonic attenuation and high surge resistance.The second one is the quasi resonant soft switch technology and time-sharing frequency conversion control strategy.The third one is optimizing the PCB layout and the wiring.Finally,the designed breaker reaches the critical standards and obtains the qualified CE certification.

关 键 词：微型断路器 电磁兼容性 集成低通滤波器 准谐振 

分 类 号：TN86[电子电信—信息与通信工程]