传导干扰测试整改系统的研究
|
摘要
随着电子产品及与电力电子器件有关的变换装置的广泛应用,使得传导干扰成为一种公害,不仅严重干扰邻近其他电子设备的正常工作,而且还威胁着人类的健康与安全。传导干扰分为两大类型:差模干扰和共模干扰。电磁兼容标准测试中只是简单地进行综合传导干扰的测量,而没有任何方法将这两类干扰进行区分。而实际情况是,所有被测物体都同时存在这两种干扰,只是经常是其中的一类干扰起着主导作用而已。如果用户能够了解是哪一类干扰起作用,以及它的干扰量级,那么对于定位产生干扰的原因,确定解决干扰的方法,选择正确合理的电源滤波器等都起到很好的作用。研究证明,由电子装置产生的传导干扰可以通过EMI电源滤波器降低到电磁兼容标准要求的范围内,EMI电源滤波器是使电子设备满足电磁兼容标准行之有效的器件。
EMI滤波器是有效抑制电力电子装置电磁干扰对外传导发射的基本方法,但是EMI滤波器的实际效能不仅取决于其自身有关参数,还同电网的射频阻抗、电力电子装置内干扰源大小及电磁干扰的射频传输阻抗有关。工程师在实际使用EMI滤波器的过程中,会遇到种种十分棘手的问题,如果选用市面现有的EMI滤波器,其插入损耗性能大都在50Ω条件下测量的,未必能满足用户在具体过程中所遇到的实际问题。准确地描述电力电子装置对电网的传导干扰特性对于量化把握装置电磁干扰特点和采取有效的EMI抑制措施有着重要意义,有利于促进电力电子装置电磁兼容设计。
我针对目前传导干扰测试及滤波器设计中存在的各种问题,分析和设计了一套传导干扰测试整改系统,对传导干扰信号进行科学的理论分析,并据此设计了传导干扰的分离网络,并且考虑到了测量本身的误差特性,设计了硬件网络的修正软件,并且开发了滤波器的自动化设计软件对传导干扰信号的滤除提供指导作用。
With the application of the electric productions and the electronical productions, conducted interference has become a kind of social effects of pollution. It not only disturb other electronical equipments nearby, but also threaten the health of the humen. The conducted interference can be divided into two types: the common-mode interference and the differential-mode interference. The EMC only tests the general conducted interference ,and dosen't take any easures to distinguish the two types of interference. But actually, the two types of interference exist in all of the EUTs., and one of them is dominant. If users know which one work, and its level, they can find the origin of the interference, adopt the appropriate steps, choose the correct EMI filters to solve the problems. With the maturity of the EMC rules at home and abroad, how to reduce the electromagnetic interference, improve the EMC capability of the electronical productions has become important for the possession of the market, the cuts of the exploiture period and the reduction of the cost. As the research indicates, the conducted interference producted by the electronical productions can be reduced to the level not preponderates over the EMC standard. The EMI filter is the efficient component makes the electronical equipments accord with the EMC standard.
EMI filter is the basic method to restrain the electromagnetic interference of the electric productions and the electronical productions. But the actual capability of the EMI filter is not only determined by its own parameters, but also by the radio- impedance of the electric net., the interference source inside the equipment, and the transmitted impedance of the electromagnetic interference. The engineer will meet many intractable problems during the application of the EMI filter. If they choose the existing filters, the capability of the filters was measyred under the condition of 50Ω. It didn't accord with the actual condition for the users. The exact description of the conducted interference of the electric productions and the electronical productions is important for the hold of the electromagnetic interference of the electronical equipments, the restraint of the electromagnetic interference, and the boost of the design of the EMC.
Aiming at the existing problems during the test of the conducted interference and the design of the filter, I analyse and design a test and diagnosis system for the conducted interference. I analyse the signal of the conducted interference in theory, and design the separation net. Besides, I design the correction software considering the error of the test. I also design the software for the design of the filter. It would be guidance for the elimination of the conducted interference
EMI滤波器是有效抑制电力电子装置电磁干扰对外传导发射的基本方法,但是EMI滤波器的实际效能不仅取决于其自身有关参数,还同电网的射频阻抗、电力电子装置内干扰源大小及电磁干扰的射频传输阻抗有关。工程师在实际使用EMI滤波器的过程中,会遇到种种十分棘手的问题,如果选用市面现有的EMI滤波器,其插入损耗性能大都在50Ω条件下测量的,未必能满足用户在具体过程中所遇到的实际问题。准确地描述电力电子装置对电网的传导干扰特性对于量化把握装置电磁干扰特点和采取有效的EMI抑制措施有着重要意义,有利于促进电力电子装置电磁兼容设计。
我针对目前传导干扰测试及滤波器设计中存在的各种问题,分析和设计了一套传导干扰测试整改系统,对传导干扰信号进行科学的理论分析,并据此设计了传导干扰的分离网络,并且考虑到了测量本身的误差特性,设计了硬件网络的修正软件,并且开发了滤波器的自动化设计软件对传导干扰信号的滤除提供指导作用。
With the application of the electric productions and the electronical productions, conducted interference has become a kind of social effects of pollution. It not only disturb other electronical equipments nearby, but also threaten the health of the humen. The conducted interference can be divided into two types: the common-mode interference and the differential-mode interference. The EMC only tests the general conducted interference ,and dosen't take any easures to distinguish the two types of interference. But actually, the two types of interference exist in all of the EUTs., and one of them is dominant. If users know which one work, and its level, they can find the origin of the interference, adopt the appropriate steps, choose the correct EMI filters to solve the problems. With the maturity of the EMC rules at home and abroad, how to reduce the electromagnetic interference, improve the EMC capability of the electronical productions has become important for the possession of the market, the cuts of the exploiture period and the reduction of the cost. As the research indicates, the conducted interference producted by the electronical productions can be reduced to the level not preponderates over the EMC standard. The EMI filter is the efficient component makes the electronical equipments accord with the EMC standard.
EMI filter is the basic method to restrain the electromagnetic interference of the electric productions and the electronical productions. But the actual capability of the EMI filter is not only determined by its own parameters, but also by the radio- impedance of the electric net., the interference source inside the equipment, and the transmitted impedance of the electromagnetic interference. The engineer will meet many intractable problems during the application of the EMI filter. If they choose the existing filters, the capability of the filters was measyred under the condition of 50Ω. It didn't accord with the actual condition for the users. The exact description of the conducted interference of the electric productions and the electronical productions is important for the hold of the electromagnetic interference of the electronical equipments, the restraint of the electromagnetic interference, and the boost of the design of the EMC.
Aiming at the existing problems during the test of the conducted interference and the design of the filter, I analyse and design a test and diagnosis system for the conducted interference. I analyse the signal of the conducted interference in theory, and design the separation net. Besides, I design the correction software considering the error of the test. I also design the software for the design of the filter. It would be guidance for the elimination of the conducted interference
引文
[1]高攸纲.电磁兼容总论.北京:北京邮电大学出版社,2001
[2]石上彦一.无线电应用数学.北京:科学普及出版社,1980
[3]陈永春.MATLAB M语言高级编程.北京:清华大学出版社,2004
[4]哥宾德.达瑞南尼.有源网络综合与设计原理.北京:人民邮电出版社,1986
[5]区健昌.电子设备的电磁兼容性设计.北京:电子工业出版社,2003
[6]雷新.电源EMI滤波器的设计,特性及其选取原则.电磁兼容设计与检测,2002年8月第4期:50-54
[7]和军平,姜建国,陈斌.电力电子装置传导电磁干扰特性测量的新方法.电力电子技术,2001年10月第5期:32-35
[8]甘明刚,陈杰,区健昌,蔡涛.EMI电源滤波器的共模插入损耗在失配状态的优化计算.北京邮电大学学报,2006年6月第3期:95-98
[9]A.E.Fitzgerald Charles Kingsley,Jr.Stephen D.Umans等.电机学(第六版).北京:电子工业出版社,2004
[10]何渝.计算机常用数值算法与程序(C++版).北京.人民邮电出版社,2003
[11]巴纳比..NET分布式编程:C#篇.北京:清华大学出版社,2004
[12]李自良.变压器等效电路的类型和阻抗参数的分析与变换.变压器,1997年3月第3期:25-29
[13]沙占友.EMI滤波器的设计原理.电子技术应用,2001年5月第5期:46-47
[14]JAMES LJ.BROOKS.A Low-Frequency Current Probe System forMaking Conducted Noise Power Measurements,June 1968:269
[15]F.COSTA,E.LABOURE,F.FOREST,S.LEFEBVRE.Quantification and minimization of conducted interferences generated in hard switching and zero current switching cells.,Feb 1994:615-621
[16]Richard Mordson and Daithi Power.The Effect of Switching Frequency Modulation on the Differential-Mode Conducted Interference of the Boost Power-Factor Correction Converter.Electromagnetic Compatibility,IEEE Transactions on,Aug.2007:526-536
[17]Julian A.Monrcya.Electromagnetic compatibility in semiconductor manufacturing.Northcon 95.IEEE Technical Applications Conference and Workshops, Oct.1995:162
[18]E P Fowler and D J Bardsley.Testing system immunity to conducted interference.EMC in large systems-IEEE Colloquium at Savoy Place.,1994:1-6
[19]Harrison,P.Hamilton.An overview of interface management.Rail Conference,2004,April 2004:89-99
[20]姜保军,孙力,赵克.EMI滤波器阻抗失配与EMI信号的有效抑制.电机与控制学报,2006年5月第3期:252-255
[21]蔡骏,沈雪梅,尹海平,赵阳,李世锦.传导性电磁干扰噪声的诊断与抑制方法.安全与电磁兼容,2006年第6期:64-68
[22]王天顺,吕朝晖.传导干扰研究.飞机设计,2006年3月第1期:29-35
[23]吴昕,钱照明.开关电源传导干扰的诊断.电工技术杂志,2000年第1期:26-27
[24]孙伟国,邱扬等.共模与差模传导干扰分析及抑制技术研究.电子质量,2004年第10期:18-19
[25]Shuo Wang,Fred C.Lee,Willem Gerhardus Odendaal.Characterization and parasitic extraction of EMI filters using scattering parameters.Power Electronics,Mar 2005:502-510
[26]Shuo Wang,F.C.Lee,W.G.Odendaal.Using scattering parameters to characterize EMI filters.Power Electronics Specialists Conference,2004,June 2004:297-303
[27]Patel,Himanshu K.Critical Considerations for EMI Filter Design in Switch Mode Power Supply.Industrial Technology,2006,Dec.2006:1843-1848
[28]Liang,Yan;van Wyk,J.D.;Ngo,Khai.Parametric Characterization of Differential-Mode Transmission Line EMI Filter.Applied Power Electronics Conference,APEC 2007-Twenty Second Annual IEEE,Feb.25 2007-March 1 2007:1217-1223
[29]Wang,S,van Wyk,J.D,Lee,F.C.Effects of Interactions Between Filter Parasitics and Power Interconnects on EMI Filter Performance.Industrial Electronics,IEEE Transactions on,Dec.2007:3344-3352
[30]杨继深.共模干扰和差摸干扰.安全与电磁兼容,2002第2期:48
[31]赵阳,李世锦等.传导性EMI噪声的模态分离与噪声抑制问题探讨.南京师范大学学报,2004第12期:1-2
[32]徐朋根等.电磁兼容性原理及应用.北京:国防工业出版社,1996
[33]董维国.深入浅出MATLAB 7.x混合编程.北京:机械工业出版社,2006
[34]孙祥,徐流,美吴清.MATLAB 7.0基础教程.北京:清华大学出版社,2005
[2]石上彦一.无线电应用数学.北京:科学普及出版社,1980
[3]陈永春.MATLAB M语言高级编程.北京:清华大学出版社,2004
[4]哥宾德.达瑞南尼.有源网络综合与设计原理.北京:人民邮电出版社,1986
[5]区健昌.电子设备的电磁兼容性设计.北京:电子工业出版社,2003
[6]雷新.电源EMI滤波器的设计,特性及其选取原则.电磁兼容设计与检测,2002年8月第4期:50-54
[7]和军平,姜建国,陈斌.电力电子装置传导电磁干扰特性测量的新方法.电力电子技术,2001年10月第5期:32-35
[8]甘明刚,陈杰,区健昌,蔡涛.EMI电源滤波器的共模插入损耗在失配状态的优化计算.北京邮电大学学报,2006年6月第3期:95-98
[9]A.E.Fitzgerald Charles Kingsley,Jr.Stephen D.Umans等.电机学(第六版).北京:电子工业出版社,2004
[10]何渝.计算机常用数值算法与程序(C++版).北京.人民邮电出版社,2003
[11]巴纳比..NET分布式编程:C#篇.北京:清华大学出版社,2004
[12]李自良.变压器等效电路的类型和阻抗参数的分析与变换.变压器,1997年3月第3期:25-29
[13]沙占友.EMI滤波器的设计原理.电子技术应用,2001年5月第5期:46-47
[14]JAMES LJ.BROOKS.A Low-Frequency Current Probe System forMaking Conducted Noise Power Measurements,June 1968:269
[15]F.COSTA,E.LABOURE,F.FOREST,S.LEFEBVRE.Quantification and minimization of conducted interferences generated in hard switching and zero current switching cells.,Feb 1994:615-621
[16]Richard Mordson and Daithi Power.The Effect of Switching Frequency Modulation on the Differential-Mode Conducted Interference of the Boost Power-Factor Correction Converter.Electromagnetic Compatibility,IEEE Transactions on,Aug.2007:526-536
[17]Julian A.Monrcya.Electromagnetic compatibility in semiconductor manufacturing.Northcon 95.IEEE Technical Applications Conference and Workshops, Oct.1995:162
[18]E P Fowler and D J Bardsley.Testing system immunity to conducted interference.EMC in large systems-IEEE Colloquium at Savoy Place.,1994:1-6
[19]Harrison,P.Hamilton.An overview of interface management.Rail Conference,2004,April 2004:89-99
[20]姜保军,孙力,赵克.EMI滤波器阻抗失配与EMI信号的有效抑制.电机与控制学报,2006年5月第3期:252-255
[21]蔡骏,沈雪梅,尹海平,赵阳,李世锦.传导性电磁干扰噪声的诊断与抑制方法.安全与电磁兼容,2006年第6期:64-68
[22]王天顺,吕朝晖.传导干扰研究.飞机设计,2006年3月第1期:29-35
[23]吴昕,钱照明.开关电源传导干扰的诊断.电工技术杂志,2000年第1期:26-27
[24]孙伟国,邱扬等.共模与差模传导干扰分析及抑制技术研究.电子质量,2004年第10期:18-19
[25]Shuo Wang,Fred C.Lee,Willem Gerhardus Odendaal.Characterization and parasitic extraction of EMI filters using scattering parameters.Power Electronics,Mar 2005:502-510
[26]Shuo Wang,F.C.Lee,W.G.Odendaal.Using scattering parameters to characterize EMI filters.Power Electronics Specialists Conference,2004,June 2004:297-303
[27]Patel,Himanshu K.Critical Considerations for EMI Filter Design in Switch Mode Power Supply.Industrial Technology,2006,Dec.2006:1843-1848
[28]Liang,Yan;van Wyk,J.D.;Ngo,Khai.Parametric Characterization of Differential-Mode Transmission Line EMI Filter.Applied Power Electronics Conference,APEC 2007-Twenty Second Annual IEEE,Feb.25 2007-March 1 2007:1217-1223
[29]Wang,S,van Wyk,J.D,Lee,F.C.Effects of Interactions Between Filter Parasitics and Power Interconnects on EMI Filter Performance.Industrial Electronics,IEEE Transactions on,Dec.2007:3344-3352
[30]杨继深.共模干扰和差摸干扰.安全与电磁兼容,2002第2期:48
[31]赵阳,李世锦等.传导性EMI噪声的模态分离与噪声抑制问题探讨.南京师范大学学报,2004第12期:1-2
[32]徐朋根等.电磁兼容性原理及应用.北京:国防工业出版社,1996
[33]董维国.深入浅出MATLAB 7.x混合编程.北京:机械工业出版社,2006
[34]孙祥,徐流,美吴清.MATLAB 7.0基础教程.北京:清华大学出版社,2005