国内plc的研究促进国际标准的发展-----外文翻译.doc

约28页DOC格式手机打开展开

国内plc的研究促进国际标准的发展-----外文翻译,abstractin the field of plc, the standardization process on international level is progressing very slowly. the emc laboratory of the north china electric power...
编号:19-212105大小:72.50K
分类: 论文>外文翻译

内容介绍

此文档由会员 wanli1988go 发布

Abstract
In the field of PLC, the standardization process on international level is progressing very slowly. The EMC Laboratory of the North China Electric Power University has received the task to develop a measurement method for the field radiated by PLC installations and a standard to be used in the future for the regulation of the PLC deployment. After a short introduction of the standardization process at international level, the paper presents measurements performed at the North China Electric Power University of radiated fields due to PLC. Comparisons of the field with various limits are shown. Finally the paper also presents a review of the regulatory situation on international level.
Keywords: PLC, standardization, electromagnetic disturbances.
1. Introduction
In the last 6 to 7 years, feasibility studies have been performed in various countries to check the possibility of using the low voltage distribution network to provide data transmission and eventually also telephonic links to individual customers at frequencies up to 30 MHz. This new technology is called Power Line Communication (PLC). This application is particularly interesting for power utilities which, on one side can enter in this way the telecommunication market and use their network for power network data transmission, on the other side can use this technology to control their own network. However, this transmission mode in the frequency band extending from 1.6 to 30 MHz presents various and quite complex EMC problems. The main problem isproduction of disturbances in the network and in the environment.
摘要
在该领域的PLC ,标准化进程,国际一级的进展十分缓慢。 EMC的实验室,华北电力大学收到了任务,制定一个测量方法,为外地辐射装置用PLC和标准,用于在今后的监管的PLC部署。经过简短介绍的标准化进程在国际一级,提出了测量数据进行的华北电力大学的辐射领域,由于PLC的。比较外地的各种限制显示。最后,文件还提出了审查监管情况,国际一级。
关键词: PLC ,标准化,电磁干扰。
1 .导言
在过去6至7年,可行性研究已经完成在不同国家,以检查是否有可能利用低压配电网络,使数据传输和电话联系,最终也对个人客户的频率高达30 MHz的。这一新技术被称为电力线通信( PLC )的。这种应用是特别有趣的是电力,一方可以以这种方式进入电信市场,并利用其网络,电力网络的数据传输,另一边可以使用此技术来控制自己的网络。然而,这种传输模式中频段从6月1日至30兆赫的各种礼物和相当复杂的电磁兼容问题。主要的问题is production的网络中的干扰和环境。
2 .干扰源
干扰的来源都是辐射,并进行:-排放的电磁噪声,可干扰无线电通讯的安全或军事用途,或干扰无线电业余爱好者;-进行差分和共模电流可以穿透任何设备连接到网络中,公司正在努力。骚乱有两种类型的来源:-信号源的不对称,由于耦合不对称;-不平衡的低压配电网( LVDN ) ,因此一个共同的模式,以差模转换。转换差别的共同模式由于网络不平衡分析了各种文件,例如在[ 1 ] 。不同的解决方案已经缓解还提议在文献[ 2 , 3 , 4 ] ,但研究工作必须进一步继续。