基于DSP的全频段继电保护专用收发信机的设计与实现  

Design and implementation of full-band transceiver dedicated to protection based on DSP

作　　者：纪建设 王志强 刘铁吨 李常青 

机构地区：[1]许继昌南通信设备有限公司,河南许昌461000 [2]许继停车系统有限公司,河南许昌461000

出　　处：《电力系统保护与控制》2011年第20期120-124,共5页Power System Protection and Control

摘　　要：介绍了基于TI浮点型数字信号处理器TMS320C6713的全频段收发信机的设计和实现。重点介绍了收发信机的系统结构,DSP控制滤波器参数的原理和软硬设计方法,发信LC滤波器的设计方法,收信回路数字IIR带通滤波器的设计方法。基于DSP的收发信机能够实现40～400kHz全频段现场改频,滤波器的性能稳定,有效地减少了带外噪声信号对收发信机的干扰。系统具有工作稳定,抗干扰能力强,运行维护方便等优点,值得在电力系统中推广应用。This paper introduces a designing method and the implementation of a full-band transceiver dedicated to protection based on TI DSP TMS320C6713. The paper focuses on the transceiver＇s system structure, the principle of DSP control filter parameters, and the designing method for system＇s hardware and software, sending circuits LC filter, and receiving circuits digital IIR pass-band filter. The transceiver based on DSP can change frequency on 40-400 kHz full-band in field. The filter works stably. It can effectively reduce the out-band noise interference. The system has advantages of working stably, high ability of anti-interference, easy maintenance, and so on. The system is worthy to use in power system.

关 键 词：继电保护收发信机 DSP TMS320C671 3 全频段 IIR滤波器 LC滤波器 

分 类 号：TM774[电气工程—电力系统及自动化]