This thesis makes a systematic reaserch and analysis about distribution network , compares some schemes about realizing feeder automation system and discusses the universal layered and distributed feeder automation sheme which based on feeder terminal unit ( ftu ) in detail 本论文对配电网络进行了系统的研究与分析，比较了目前适用于馈线自动化系统的各种方案，并重点讨论了通用型基于馈线终端单元( ftu )的分层分布式馈线自动化( fa )系统的研究内容。
Fault location is an importrant function in distribuiton automation . in the thesis , the transferred information from feeder terminal unit is computed with load ’ s trapezoid fuzzy figure . the fault location is affirmed by the result of computation using the trapezoid fuzzy math theory . the atp and matlab softwares are used to simulate the 10kv lines in urmuqi distribution network . and the results shows the reliability and accuration of the method in the thesis 线路故障定位是配电自动化的一项重要功能,文中提出利用线路始端电压、电流和线路ftu (馈线终端单元, feederterminalunit )的上传信息,结合配电变压器负荷的梯形模糊数模型,运用模糊数学理论通过电流计算来进行故障定位的新方法。
This paper summarizes distribution automation system and expatiates ttu ' s important situation in it ; introduces the dsp ic , emphasizes on the performances and characteristics of tms320lf2407a as well ; studies the calculation methods of harmonics analysis , mainly the principle and arithmetic of fast fourier transform ( fft ) ; researches the hardware and software design of ttu like measure module , display module , communication module , and so on 介绍dsp芯片tms320lf2407a的性能及特点。研究谐波分析的计算方法，着重介绍快速傅立叶变换( fft )原理及编程算法。重点研究了配电变压器远方终端单元的硬件、软件设计方案，如测量检测、显示、存储、通信模块以及通信上位机软件设计等。
This paper aims at the request of distribution automation and the disadvantages of existent ttu products and puts forward a scheme of ttu design : dsp ic tms320lf2407a of ti ltd . is chosen as a controller because of its high performance ; a three - phase power / energy ic developed by sames ltd . is used as a measure module to simplify the hardware circuit and software program ; the embedded modem and rs485 / rs232 mode communication interfaces are designed to make the data transfer more flexible and effective ; the 101 communication protocols of international electric power standard are adopted to improve its compatibility 本文针对配电自动化的要求及现有ttu产品的不足，提出了一种基于dsp的配电变压器远方终端单元的研制方案：微控制器选用ti公司高性能定点dsp芯片tms320lf2407a ；使用sames公司推出的三相电能计量芯片sa9904a作为测量模块，简化了硬件电路和软件编程；采用siliconlaboratories的嵌入式modem 、 rs485 rs232等多种通信方式，使数据传送变得灵活、高效；为了提高设备兼容性及通用性，通信协议采用国际电力标准101规约。
The feeder automation technology which based on the feeder terminal unit ( ftu ) is a key technology and the core content of distribution network automatization , and it realizes all the distribution network real - time monitoring by ftu , communication network and coordinated operation of power distribution automatization master station system . when the breakdown occurs , it can rapidly carry on the breakdown localization , and realize the failure isolation and the load shift with the master station system participation , thus it completes the network reconstruction 基于馈线终端单元( ftu )的馈线自动化技术是配电自动化的一项关键技术和核心内容,通过ftu 、通信网络和配电自动化主站系统的协调运行实现对整个配电网的实时监控,当故障发生时,能够迅速进行故障检测、定位,并在主站系统的参与下实现故障隔离及负荷转移,从而完成网络重构。
