光纤通信网络传送继电保护信号传输方法研究

发布时间：2018-06-17 00:17

本文选题：光纤通信 + 继电保护　；参考：《计算机仿真》2017年10期

【摘要】：为了保障电力系统的安全稳定运行,需要对光纤通信网络传送继电保护信号传输方法进行研究,但是采用当前方法进行继电保护信号传输时,信号处理设备会产生较大的信号延迟,存在引发继电保护等装置误动的问题。为解决上述问题,提出一种基于编码波形的光纤通信网络传送继电保护信号传输方法。上述方法先利用相位差定义光纤通信信号传输系统的组成结构,给出网络绝对传输延时组成模型,得到延时包含的主要因素,将NRZ码和时钟信号相异或进行编码,采用保护式继电器接法对编码器和解码器进行设计,设定通信的同步头,组建光纤通信网络传送继电保护信号的双向传输机制,利用该机制完成对光纤通信网络传送继电保护信号传输。仿真证明,所提方法传输精度较高,为保障电力系统的安全稳定运行提供了依据。
[Abstract]:In order to ensure the safe and stable operation of power system, it is necessary to study the transmission method of relay protection signal in optical fiber communication network, but when the current method is used to transmit the relay protection signal, The signal processing equipment will produce large signal delay and cause the maloperation of relay protection and so on. In order to solve the above problems, a transmission method of relay protection signal based on coded waveform in optical fiber communication network is proposed. The above method firstly defines the structure of optical fiber communication signal transmission system by using phase difference, and gives the network absolute transmission delay composition model, obtains the main factors of delay, and encodes NRZ code and clock signal. The encoder and decoder are designed by using protective relay connection method, the synchronous head of communication is set up, and the bidirectional transmission mechanism of relay protection signal is set up in optical fiber communication network. This mechanism is used to transmit relay protection signal to optical fiber communication network. Simulation results show that the proposed method has high transmission accuracy and provides a basis for the safe and stable operation of power system.
【作者单位】：西安建筑科技大学机电工程学院;
【分类号】：TN929.11

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