STUDY OF ELECTROMAGNETIC COMPATIBILITY (EMC) FOR ULTRA HIGH-SPEED POWER

超高速电源的电磁兼容性 (EMC) 研究

• 批准号: 14550362
• 负责人: KUWABARA Nobuo
• 金额: $ 2.37万
• 依托单位: Kyushu Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550362/
• 关键词: High speed PLC; Power line communication(PLC); Electromagnetic environment; 4-port network; Electromagnetic compatibility (EMC); Telecommunication system using wire; Immunity; Equipment modeling; 高速電力線通; 干渉

Electromagnetic compatibility (EMC) for ultra high-speed power line communication (PLC) system has been studied m the frequency range of from 10 KHz to 100 MHz for two years. The following results have been obtained from the study,(1)Transmission model of AC mains lineVVF (PVC-insulated PVC-sheathed cable Flat type) cable, which was commonly used for the AC mains line in indoor environment, was investigated for the performance as the transmission line: The results indicated that the electrical characteristics of the insulator, such as dielectric constant and tans, had a frequency dependence in the frequency range where a high-speed PLC was used. The transmission model of the AC mains line was improved based on the results.(2)Emission model from AC mains lineIndoor AC mains line, electrical appliance and telecommunication line were modeled by the 4-port network. The coefficient presenting symmetry and the input impedance were calculated by the network constructed with the models. The an … More alysis was also applied to calculate the radiated electromagnetic field from the AC mains line.(3)Electromagnetic environment on AC mains systemEmission level was investigated in case of the electrical appliance connected with the AC mains system. The results indicated that the emission level in the frequency range of more than 1 MHz was lower than that less than 1 MHz. The coefficient presenting symmetry and the input impedance were investigated. The results indicated that the fluctuations of these values more than 1 MHz was smaller than that less than 1 MHz, and we could expect that the longitudinal conversion loss, which was one of the coefficient presenting symmetry, was more than 20 dB. The transmission characteristics was also studied using the simple AC mains system, and the results indicated that the position of the equipment was sensitive for the characteristics compared with the distance between transmitter and receiver equipment, Finally, the interference to the VDSL system was studied for the conditions where the PLC signal appeared at the.telecommunication line by the conduction coupling between the telecommunication port and the AC mains port, and by the induction coupling between the telecommunication line and the AC mains line. The results indicated that the influence of the PLC signal was not observed on the normal operation conditions for the systems using the study, but the investigation also showed that the influence might be appeared when the worse conditions.were overlapped.(4)Immunity of PLC systemThe immunity of the PLC system was studied to apply the artificial disturbances to the PLC signal. The narrow band and the broad band signal were applied. The results showed that the influence of the broad band disturbance signal was more severe than that of the narrow band disturbance signal.(5)Modeling of electrical applianceThe input impedance of the electrical appliance was measured on the operation conditions using the artificial mains network. The results were compared with the results when the appliance was not operating. The studies, indicated that the deviation between two conditions was small when the appliances were employing micro computers, and it appeared in the case of the simple appliance, for example, an incandescence electric bulb. Less

对超高速电力线通信（PLC）系统在10 KHz ~ 100 MHz频率范围内的电磁兼容性进行了两年的研究。研究得到以下结果：(1)交流市电线路的传输模型(evvf （pvc -绝缘pvc -护套电缆扁平型）电缆是室内环境中常用的交流市电线路，对其作为传输线的性能进行了研究：结果表明，在使用高速PLC的频率范围内，绝缘子的介电常数、绝缘系数等电气特性具有频率依赖关系。在此基础上，改进了交流干线的输电模型。(2)交流干线排放模型室内交流干线、电器和通信线路采用4口网络建模。利用该模型构建的网络计算了对称系数和输入阻抗。进一步的分析还应用于计算交流干线的辐射电磁场。(3)交流市电系统的电磁环境，研究了与交流市电系统连接的电器的辐射水平。结果表明，在1 MHz以上频率范围内的发射水平比小于1 MHz的发射水平低。研究了对称系数和输入阻抗。结果表明，这些大于1 MHz的值的波动小于小于1 MHz的值，并且可以预期纵向转换损耗（呈现对称性的系数之一）大于20 dB。研究了简单交流市电系统的传输特性，结果表明，设备的位置对传输特性的影响比收发设备之间的距离更敏感。最后，研究了PLC信号出现在VDSL系统的位置时对VDSL系统的干扰。通信线路通过通信端口与交流市电端口之间的传导耦合，以及通信线路与交流市电线路之间的感应耦合。结果表明，PLC信号对所研究系统的正常运行状态没有影响，但调查也表明，在较差的条件下可能会出现影响。是重叠的。(4) PLC系统的抗扰度研究PLC系统的抗扰度，将人为干扰作用于PLC信号。采用窄带信号和宽带信号。结果表明，宽带干扰信号的影响比窄带干扰信号的影响更大。(5)电器的建模利用人工市电网络在运行条件下测量电器的输入阻抗。并将结果与不操作时的结果进行了比较。研究表明，当器具采用微型计算机时，两种情况之间的偏差很小，这种偏差出现在简单器具的情况下，例如白炽灯泡。少

项目成果

M.A.Rashid, S.Hamada, M.Maki, N.Kuwabara: "Transmission characteristics of power line considering high-speed PLC and its immunity characteristics"Proceedings of Technical Report of IEICE (In Japanese). EMCJ2002-15 May. 49-54 (2002)

M.A.Rashid、S.Hamada、M.Maki、N.Kuwabara：“考虑高速PLC的电力线传输特性及其抗扰特性”IEICE技术报告论文集（日文）。

Y.Shimoduma, A.K.Rashid, N.Kuwabara, Y.Akiyama, H.Yamane: "A study of PLC signal influence on VDS system by indoor power line and telecommunication line"Proceedings of 2004 International Symposium on Electromagnetic Compatibility, Sendai, June 2004. June.

Y.Shimoduma、A.K.Rashid、N.Kuwabara、Y.Akiyama、H.Yamane：“室内电力线和电信线对 VDS 系统的 PLC 信号影响的研究”2004 年国际电磁兼容性研讨会论文集，仙台，2004 年 6 月

Y.Shimoduma, A.K.Rashid, N.Kuwabara, Y.Akiyama, H.Yamane: "A study of PLC signal influence on VDSL system by indoor power line and telecommunication line"2004 International symposium on electromagnetic compatibility. Sendai(2004年6月発表予定). (2004)

Y. Shimoduma、A. K. Rashid、N. Kuwabara、Y. Akiyama、H. Yamane：“室内电力线和电信线路对 VDSL 系统的 PLC 信号影响的研究”2004 年仙台国际电磁兼容性研讨会（2004 年 6 月）（ 2004）

T.Tominaga, Y.Akiyama, H.Yamane, N.Kuwabara: "Investigation of Electromagnetic Noise Transmission Characteristics from AC Mains Port to Telecommunication Port"2003 IEEE International Symposium on EMC. Boston. 505-510 (2003)

T.Tominaga、Y.Akiyama、H.Yamane、N.Kuwabara：“从交流电源端口到电信端口的电磁噪声传输特性的调查”2003 年 IEEE 国际 EMC 研讨会。

Y.Akiyama, H.Yamane, N.Kuwabara: "A Study of The impedance stabilization network for emission measurement of PLC eauinment"Proceedings of Technical Report of IEICE (In Japanese). EMCJ2003-12 April. 71-75 (2003)

Y.Akiyama、H.Yamane、N.Kuwabara：“用于 PLC 设备发射测量的阻抗稳定网络的研究”IEICE 技术报告论文集（日文）。