变压器油中溶解气体无线数据采集终端的研制

为满足变压器油中溶解气体在线监测中数据采集以及实时传送的要求,提出了在线监测中数据无线传输方法,即充分利用通用分组无线业务(GPRS)所具有的优点来进行数据的无线传输,从而实现变压器状态数据的远程、快捷及低成本传输。给出了基于GPRS的变压器油中溶解气体在线监测系统的总体设计方案;编写了系统的无线通信协议、无线数据采集终端通信规约以及采集模块的通信规约;开发完成了高精度采集模块和无线数据采集终端以及相应的上位机软件。该无线数据采集终端集GPRS网络通信与数据采集与一体,实现了变压器油中溶解气体状态信息的在线采集以及数据的实时、低成本传输;能适于多种传感器,根据实际需要进行各种参数的设置,除了能用于变压器油中溶解气体多组分在线监测,还能用于其他多种领域,为产业化打下了坚实的基础。

Design and Realization of the Wireless Data Acquirement Terminal of Dissolved Gas in Transformer Oil

A new method of data wireless transmission is presented after thoroughly studying on monitoring gas dissolved in the transformer oil.The method taking advantage of GPRS(General Packet Radio Service)for data wireless transforming can realize the long-distance,rapid and low cost transmission of transformer state data.In the paper,the structural design of online monitoring system of dissolve gas in the transformer oil is given,special wireless communication protocol of online monitoring system in the transformer oil and communication protocol of the wireless data acquisition terminal of the dissolved gas in the transformer oil and data acquirement module are compiled,and data acquisition module,the wireless data acquisition terminal of the dissolved gas in the transformer oil and software of the host computer are developed.The wireless data acquisition terminal integrates with GPRS network communication and data acquisition,which realizes the acquisition of the dissolving gas in the transformer oil and data timely and low cost transmission.The terminal is suitable for various sensors and can adjust parameters according to practical situation.The terminal not only can realize data transmission of transformer,but also can be used for several fields,which provide a solid foundation for industrialization.