数字式光纤纵差保护的研究

Study on Protection of Currrent-differential Relay Based on Digital Optical Fiber Transmission

本文叙述了一种新型的利用光纤传输技术和微型计算机技术的全数字式光纤纵差保护装置,它是由华中理工大学和武汉邮电科学研究院激光通信研究所联合研制的,适用于短距离输电线路及其由短线路组成的环网。主要介绍了这套保护装置的原理和构成,针对短线纵差保护中的实际问题,提出了新的解决方案。

This paper gives an outline of a new current—differential relay based on the techniques of optical fiber transmission and microcomputer, and further describes the principle and construction of the relay. Moreover,new methods are put forward to surmount the'particular problems existing in short-line protections. The relay applies to short distance power transmission line as well as network of short lines.