【作者】 田家英；

【导师】 赵舫；

【作者基本信息】 浙江大学 ， 电力系统及其自动化， 2006， 硕士

【摘要】 电力系统信息化建设的第一步要求是将反映系统运行的各种参数转化为数字量,以便利用计算机技术进行处理,为此在电力系统厂站端设置了大量的智能设备(IED)。这些IED设备已经可以采集到丰富的运行数据,同时能够利用自身的远动通讯功能将数据传输到远方,但是由于“信息孤岛”现象的存在,多数数据都不能得到充分利用。问题的根源在于:IED装置的通讯接口不一致,同时也没有一个统一的数据存储场所。PI数据库系统的引入为厂站内IED装置的数据建立了一个统一的存储场所。本文所讨论的是如何将厂站端IED装置的数据导入PI数据库中。本文基于CIM模型来构建信息集成系统,先将IED数据转换到标准的模型下,再通过OPC接口将IED数据导入PI系统中。在设计上采用了“主站+子站”的框架,子站负责采集IED数据并进行CIM模型转换;主站管理各个子站,同时将数据导入PI系统。在此基础之上,本文利用嵌入式系统实现数据采集子站,其软硬件均可根据应用需求而进行剪裁。更多还原

【Abstract】 In order to facilitate data-processing with computer, the first step in power system information integration is to convert substation operation parameters into digital signal, so kinds of intelligent electronic devices (IED) are introduced into the substation. Now these IED can provide various data for power system operation, and possess the ability to transmission their data to the remote control center. Howe ever, a large number of IED data can not be used efficiently, that is the so-called "Island of Information" problem. There are mainly two factors resulting in the information waste: the absence of database which can store all the substation data makes data-sharing difficult;on the other hand, the variety of protocols which IED conform to complex the data-acquisition system. The use of Plant Information (PI) system in Power system eliminates the first factor, that is, the PI system acts as a unified data integration platform holding all substation data. This paper is to bridging IED and the PI system. The seamless communication of power system is based on the IEC 61850 Standard in the future, so our substation data-acquisition system is designed to abide IEC 61850 and based on common information model (CIM). The whole system consists of several slave stations installed in substations and a master station located in control center. The slave station performs data-acquisition & model-translation function. The master station manages all slave stations and passes IED data into PI system. The substation data-acquisition system not only has traditional data acquisition and communication functions, but also satisfies data-integrity and real-time requirements in power system information integration.更多还原