【摘要】 电力线耦合装置是电力线载波通信系统中关键环节之一,一个安全、高效、简易的高频载波信号耦合装置是实现电力线通信的基础。文中首先从低压配电网网络结构和传输信号特性的角度,分析了耦合装置的结构和频带要求,并研究了配电网高频阻抗特性,提出了设计耦合装置的主要原则。最后介绍了常用的两种宽带耦合技术及其装置的具体实现。更多还原

【Abstract】 The coupling device is one of the most important devices for the power line communication systems. A convenient,safe and high efficiency couple device is the basis to realize power line communication of high frequency carrier signal. In this paper,we firstly analyze the requirement of the coupler’s structure and frequency band from the view of the network’s structure and signal transmission characteristics. And we research the distribution impedance character in high frequency,further more the design principle of coupling device is advised. Finally,the design and realization of two kinds of technology and devices are introduced.更多还原