基于嵌入式系统的配电网络重构模拟实验平台的研究与设计

发布时间：2018-05-10 10:02

本文选题：配电网络重构 + 嵌入式Linux　；参考：《中南大学》2012年硕士论文

【摘要】：配电网络重构作为改善配电网络运行结构、降低网络损耗、提高网络可靠性的重要手段,也是电力自动化研究的主要方向。本文设计和开发了基于嵌入式系统的配电网络重构模拟实验平台,用于验证配电网络重构算法和模拟重构执行过程,对于配电网络自动化的研究具有深远的意义。从理论上分析配电网络重构的研究对象及其拓扑结构,对嵌入式配电网络重构模拟实验平台进行功能和需求分析,提出系统的设计流程和设计理念。根据ARM+FPGA原设计方案搭建系统的软硬件平台并进行测试分析,针对其存在的缺陷和不足,提出新的模拟节点组网的改进设计方案。嵌入式配电网络重构实验装置采用模块化设计理念：介绍嵌入式运算模块的硬件结构,相关单元的设计原理和功能特点,PCB设计及EMC注意事项,建立Linux系统开发环境,为嵌入式运算模块移植BootLoader、移植嵌入式Linux内核、构建根文件系统,并开发、测试、添加内核中所缺少的设备驱动模块；分析数据采集模块的单相交流电能参数测量方式和硬件设计结构,核心测量芯片78M6613的数据采集计算原理、体系结构和程序开发特点,并在Linux系统下使用C语言编写主机测试程序,通过串行接口使用SLIP协议完成对数据采集模块主要功能的测试；描述配电网络模拟节点的硬件结构,各单元的功能原理和硬件实现,以及节点间组建配电网络模拟模块的电气连线,对Modbus协议和TCP/IP协议进行简介,分析了模拟节点基于Modbus协议和TCP/IP协议的软件设计特点和程序流程,以及不同协议主机测试程序的实现方法。在PC主机上使用VC++为系统开发软件测试平台,对重构装置的各模块进行集成测试,选择不同的配电网络系统进行重构并完成网损分析和可靠性分析。总结嵌入式配电网络重构模拟实验平台开发和测试过程中完成的工作和碰到的问题,指出该平台存在的缺陷和今后完善升级的方向。
[Abstract]:As an important means to improve the operation structure of the distribution network, reduce the loss of the network and improve the reliability of the network, the distribution network reconfiguration is also the main direction of the research of power automation. This paper designs and develops a simulation experiment platform of distribution network reconfiguration based on embedded system, which is used to verify the implementation of the distribution network reconfiguration algorithm and the simulation reconstruction. Cheng has far-reaching significance for the research of distribution network automation.
The research object and topology structure of distribution network reconfiguration are analyzed theoretically, the function and requirement of the embedded distribution network reconfiguration simulation experiment platform are analyzed, and the design flow and design idea of the system are put forward. The software and hardware platform of the system is set up and the test analysis is carried out according to the original design scheme of ARM+FPGA. A new design scheme of simulation node networking is proposed.
The embedded distribution network reconfiguration experiment device adopts the modular design concept: introduces the hardware structure of the embedded operation module, the design principle and function characteristics of the related units, the design of PCB and the matters needing attention in EMC, the establishment of the Linux system development environment, the transplant of BootLoader for embedded operation module, the transplant of the embedded Linux kernel and the construction of the root file system. And develop, test, add the device driver module that is missing in the kernel, analyze the measurement mode of the single phase alternating current energy parameter and the hardware design structure of the data acquisition module, the principle of data acquisition and calculation, the architecture and the development characteristics of the core measurement chip 78M6613, and write the host test program in the C language under the Linux system. The SLIP protocol is used to test the main functions of the data acquisition module through the serial interface. It describes the hardware structure of the distribution network simulation node, the function principle and the hardware implementation of each unit, and the electrical connection of the distribution network simulation module between the nodes. The Modbus protocol and the TCP/IP protocol are briefly introduced, and the analog node base is analyzed. The software design features and program flow of Modbus protocol and TCP/IP protocol, as well as the implementation method of different protocol host test program are discussed.
Using VC++ to develop the software testing platform for the system on the PC host, the modules of the reconfigurable device are integrated and tested, the different distribution network systems are selected to restructure, and the network loss analysis and reliability analysis are completed.
This paper summarizes the work and problems encountered in the development and testing of the embeded distribution network reconfiguration simulation experiment platform, and points out the shortcomings of the platform and the direction for the improvement and upgrading in the future.

【学位授予单位】：中南大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TM76;TP368.1

【引证文献】