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A Laboratory of Electromagnetic Compatibility for Power System
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作者 张文亮 邬雄 郎维川 《Electricity》 2002年第2期43-46,共4页
The first laboratory of electromagnetic compatibility in Chinais possessed of vivid characteristics in respect of design and configurationof testing equipment. It has successively completed some testing projectsand wi... The first laboratory of electromagnetic compatibility in Chinais possessed of vivid characteristics in respect of design and configurationof testing equipment. It has successively completed some testing projectsand will unfold a more extensive range of measurement and test works inthe days to come.[ 展开更多
关键词 power system electromagnetic compatibility (emc) electromagnetic interference (EMI) LABORATORY
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System-Level EMC Assessment for Military Vehicular Communication Systems Based on a Modified Four-Level Assessment Model 被引量:5
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作者 Ping Zhou Yinghua Lv +1 位作者 Zhihong Chen Hongping Xu 《China Communications》 SCIE CSCD 2018年第8期39-53,共15页
With the development of EMC technology, EMC assessment has become increasingly important in EMC design. Although numerous EMC assessment models are available today, few of them can provide a tradeoff between efficienc... With the development of EMC technology, EMC assessment has become increasingly important in EMC design. Although numerous EMC assessment models are available today, few of them can provide a tradeoff between efficiency and accuracy for the specific case of military vehicular communication systems. Face to this situation, a modified four-level assessment model is proposed in the paper. First, the development of EMC assessment technology is briefly reviewed, and the theoretical mechanism of EMI environment is introduced. Then, the architecture of the proposed model is outlined, and the assessment methods are explored. To demonstrate the application of it, an example involving a communication system in a military vehicle is presented. From the physical layer to the signal layer, a hierarchical assessment on the entire system is successfully performed based on the proposed model, and we can make a qualitative EMC assessment on the EMC performance of the system. Based on a comparison with the traditional model, we conclude that the proposed model is more accurate, more efficient and less time-consuming, which is suitable for the EMC assessment on militaryvehicular communication systems. We hope that the proposed model will serve as a useful reference for system-level EMC assessments for other systems. 展开更多
关键词 military vehicular communication system system-level electromagnetic compatibility emc assessment four-level assessment model
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Research on electromagnetic relay's dynamic characteristics disturbed by uniform static magnetic field 被引量:3
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作者 Guo-fu ZHAI Qi-ya WANG Wan-bin REN 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2008年第4期577-582,共6页
Electromagnetic relay is a widely used apparatus which usually works in a magnetic disturbance environment. To evaluate its electromagnetic compatibility (EMC) in a static magnetic field, dynamic characteristics of a ... Electromagnetic relay is a widely used apparatus which usually works in a magnetic disturbance environment. To evaluate its electromagnetic compatibility (EMC) in a static magnetic field, dynamic characteristics of a clapper relay in a uniform static magnetic field situation based on the finite element method (FEM) is studied. Influences of the magnetic field on dynamic parameters (delay time, pick-up time, end pressure, and final velocity) as well as a situation in which the relay cannot function normally are analyzed. Simulation reveals that the external magnetic field which weakens the relay’s air-gap field has a greater influence on the relay’s dynamic parameters than the one strengthening the field. The validity of the simulation is verified by measured results of coil current and armature displacement. 展开更多
关键词 Dynamic characteristics Uniform static magnetic field electromagnetic relay Finite element method (FEM) electromagnetic compatibility emc
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Evaluation of Nuclear Electromagnetic Pulse (NEMP) Vulnerability on Cots Electronic Equipments 被引量:1
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作者 Laurent Labarbe 《Journal of Physical Science and Application》 2013年第5期341-344,共4页
This study deals with a new evaluation method of nuclear electromagnetic pulse (NEMP) vulnerability on cots electronic equipments. The method consists in comparing electromagnetic compatibility (EMC) test severiti... This study deals with a new evaluation method of nuclear electromagnetic pulse (NEMP) vulnerability on cots electronic equipments. The method consists in comparing electromagnetic compatibility (EMC) test severities to NEMP conducted stresses. The comparison uses five characteristic criteria of the induced stresses, calculated with an analytic method. The process is based on a software named "SUSIE" (in French: SUSceptibilite a I'IEMN "Impulsion ElectroMagnttique d'origine Nucl6aire Haute Altitude"). Today, only conducted stresses are analyzed. An evolution is planned in 2013 to determine the equivalent vulnerability of radiated stresses and to validate the software. 展开更多
关键词 VULNERABILITY electromagnetic compatibility emc test comparative method.
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Progress of Expert Systems in Electromagnetic Engineering 被引量:1
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作者 赖生建 王秉中 《Journal of Electronic Science and Technology of China》 2005年第4期328-333,共6页
It is urgent to solve various problems in electromagnetic (EM) engineering under the increasingly complicated environment. Some expert systems (ES) come into being just to keep up with the demand for solving these... It is urgent to solve various problems in electromagnetic (EM) engineering under the increasingly complicated environment. Some expert systems (ES) come into being just to keep up with the demand for solving these problems. Combined with the analysis of development orES technology and the development trend of EM engineering software in recent years, the application orES technology in EM engineering is discussed, and especially the progress of complete ES in electromagnetic compatible (EMC) is introduced. 展开更多
关键词 electromagnetic (EM) engineering expert system KNOWLEDGE-BASE engineering software electromagnetic compatible emc electromagnetic interfere(EMI)
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PERIODIC DYADIC GREEN’S FUNCTION FOR FIELD ANALYSIS IN EMC CHAMBER
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作者 Lv Feiyan Ding Jianjin Sha Fei 《Journal of Electronics(China)》 2006年第6期906-912,共7页
Herein a novel Dyadic Green’s Function (DGF) is presented to calculate the field in ElectroMag-netic Compatibility (EMC) chamber. Due to the difficulty of simulating the whole chamber environment, the analysis combin... Herein a novel Dyadic Green’s Function (DGF) is presented to calculate the field in ElectroMag-netic Compatibility (EMC) chamber. Due to the difficulty of simulating the whole chamber environment, the analysis combines the DGF formulation and the FEM method, with the latter deals with the reflection from absorbers. With DGF formulation for infinite periodic array structures, this paper investigates electromagnetic field in chamber with truncated arrays. The reflection from the absorber serves as the virtual source contribut-ing to the total field. Hence the whole chamber field calculation can be separated from the work of absorber model set-up. Practically the field homogeneity test and Normal Site Attenuation (NSA) test are carried out to evaluate the chamber performance. Based on the method in this paper, the simulation results agree well with the test, and predict successfully the victim frequency points of the chamber. 展开更多
关键词 electromagnetic compatibility emc chamber Dyadic Green's Function (DGF) Periodic array
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Conducted EMI Suppression in Plasma Cutting Power Supply 被引量:1
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作者 Abdolreza Esmaeli 孙力 赵克 《Plasma Science and Technology》 SCIE EI CAS CSCD 2005年第6期3170-3173,共4页
A systematic approach to the design of the conducted electromagnetic interference (EMI) filter of high-density plasma cutting power supply has been developed. Converter components have been accurately modeled, with ... A systematic approach to the design of the conducted electromagnetic interference (EMI) filter of high-density plasma cutting power supply has been developed. Converter components have been accurately modeled, with parasitic elements extracted to reveal their impacts on the EMI noises. Circuit simulations have been used to analyze and minimize the EMI noises. Conducted EMI noise measurement and filter design of this power supply have been achieved which successfully satisfy the FCC class B limits in the frequency range from 150 kHz to 30 MHz. The analyses and experimental results show that the designed filter guarantees that the required attenuation will be achieved. 展开更多
关键词 conducted electromagnetic interference (EMI) plasma cutting power supply electromagnetic compatibility emc saber designer filter design
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Noise properties in breaking and loose contacts and their effect on quality degradation of digital signal
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作者 TAKAGI Tasuku 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2007年第3期357-360,共4页
Electric contact discharge is subject closely related to digital information transmission, and integrity of digital signals for realizing high reliablility transmission. This kind of problem is a part of EMC (electrom... Electric contact discharge is subject closely related to digital information transmission, and integrity of digital signals for realizing high reliablility transmission. This kind of problem is a part of EMC (electromagnetic compatibility). From such a viewpoint, contact noise problems will be mentioned which disturb and degrade digital signals. The induction noise and radiation noise from discharge, electrostatic discharge (ESD), and connector related fundamental subject will be mentioned. 展开更多
关键词 emc electromagnetic compatibility Electric contacts DISCHARGE Induction noise Radiation noise ESD (electrostatic discharge) CONNECTOR
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Black-box Modeling of Converters in Renewable Energy Systems for EMC Assessment:Overview and Discussion of Available Models
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作者 Lu Wan Abduselam H.Beshir +4 位作者 Xinglong Wu Xiaokang Liu Flavia Grassi Giordano Spadacini Sergio A.Pignari 《Chinese Journal of Electrical Engineering》 CSCD 2022年第2期13-28,共16页
The development of renewable energy systems interfaced with the grid by power electronic converters leads to increasing issues of electromagnetic coexistence between power and communication lines,as well as severe pow... The development of renewable energy systems interfaced with the grid by power electronic converters leads to increasing issues of electromagnetic coexistence between power and communication lines,as well as severe power quality issues,such as total harmonic distortion at the consumer side.Therefore,high-frequency modeling of renewable energy systems is of great importance to guide the design and development of distribution networks involving renewable sources.Owing to system complexity,black-box modeling approaches offer more advantages than traditional circuit modeling,as far as electromagnetic compatibility(EMC)analysis and filter design are the targets.In this study,different black-box modeling techniques for power converters are introduced and systematically analyzed.First,the general theory of black-box modeling is explained.Subsequently,three different modeling approaches are compared in terms of accuracy and the required experimental setup.Finally,the possible limitations of black-box modeling of power converters are investigated and discussed. 展开更多
关键词 Renewable energy system black-box modeling electromagnetic compatibility(emc) conducted emission(CE)
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Common-mode radiation characteristic analysis of connections between cables and metal cases
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作者 Haifeng SONG Zhiyu CHEN 《Frontiers of Electrical and Electronic Engineering in China》 CSCD 2008年第3期353-357,共5页
In this paper,the common-mode radiation characteristic of the connection between a cable and a conductor is analyzed by the electric field integral function(EFIF)and the method of moment(MoM).The RWG basis function is... In this paper,the common-mode radiation characteristic of the connection between a cable and a conductor is analyzed by the electric field integral function(EFIF)and the method of moment(MoM).The RWG basis function is adopted as the conductor basis function,the pulse basis function as the wire basis function and the juncture employs Costa basis function.A scheme of singular region separation is proposed to overcome the integration singularity of juncture matrix elements.Some new conclusions of the common-mode radiation characteristics with the metal case are obtained by numeration. 展开更多
关键词 method of moment(MoM) common-mode radiation metal case electromagnetic compatibility(emc)
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