一种新型智能配电终端的设计与研究

Design and Research of a New Type of Intelligent Power Distribution Terminal

智能配电终端分散安装于智能配电网的开关节点处,完成数据采集、分布式故障检测、自愈控制、通信、与高级配电自动化系统进行信息数据交互,构成智能配电网的重要组成部分。本文在常规配电终端基础上提出了一种新型智能配电终端的设计模式,同时提出了智能配电终端硬件平台架构和软件架构分层、分模块设计思路。智能配电终端硬件平台采用基于ARM9系列的i.mx28主控芯片和ADSP-BF518的DSP芯片进行硬件平台架构搭建;软件平台采用基于嵌入式Linux系统、SQLite数据库以及实时数据、消息库完成软件架构技术搭建。为了详细介绍智能配电终端设计方法,对智能配电终端软件系统支撑层、基础功能层、管理维护层、业务应用层进行了分类分项介绍,对智能配电终端硬件平台结合总体架构、应用层、硬件相关层、硬件层进行了逐项介绍,对智能配电终端电源设计和后备电源选择模式进行了比较,同时结合现场实施提出了智能配电终端工程项目标准化设计方案。

Intelligent power distribution terminals are installed at the switching nodes of smart distribution grids for data collection,fault detect,self-healing control,communication,information exchange with higher level of power distribution automation system,consisting a critical part of the smart distribution grids.Based on regular power distribution terminal,a design method for new type of intelligent power distribution terminal is provided in the paper,the design methods of hardware framework,hierarchical and modulized software framework are also proved.To build the hardware platform,the hardware framework adopts the ARM9 series based i.mx28 chipsets and ADSP-BF518 based DSP chipsets.The software platform adopts the architecture based on embedded Linux system,SQLite database and real-time database/information data.To introduce the intelligent power distribution terminal in detail,the system support layer,basic function layer,management/maintenance layer,business application layer of software platform are described in the paper,the hardware platform and the architecture,application layer,hardware related layer,power-supply system,and the method of standard design are also described.