电力电缆电力传送实验平台测试系统设计

Design of testing system for electricity transmission experimental platform

为研究高效安全传送绿色电力的方法,设计电力传送实验平台测试系统。该系统以S3C2440A微处理器为核心构建嵌入式测试电路,该电路通过MIK-DZU-400 V电压变送器、HD-T101-300A电流变送器、MIK-ST500温度变送器等集成模块实现电力电压、电流及电缆温度的感知与调理。基于Linux操作系统,在Qtopia2.2.0集成开发环境中设计嵌入式测试软件,该测试软件主要包括电力电压、电流及电缆温度信号的采集与保存模块,电力电缆热特征参数分析模块、通信模块、电力电缆寿命疲劳分析模块接口、电缆动态增容传输分析功能接口、电力传送控制模块接口。在上位机PC中利用Visual C++6.0 MFC模块开发上位机分析处理软件。实验表明:测试系统能够感知电缆温度、电力电压和电流,能够基于电缆热路模型分析电力电缆热特征参数,能够通过接口开放地添加电力电缆寿命、疲劳分析、电力传送动态控制等新方法。

In order to explore methods to transmit the green electricity efficiently and securely, a testing system on the experimental platform for electricity transmission through cable was designed. The microprocessor S3C2440A was used to design the measurement circuit, in which the integrated module MIK-DZU-400V, HD-T101-300A and MIK-STS00 were adopted to sense the voltage and current of the electric power which is being transmitted, and the temperature of cable, through which the power is being carried, respectively, and the signals are conditioned. Based on the operation system Linux, the embedded testing software was designed in the integrated development environment Qtopia2.20. It runs in the microprocessor $3C2440A and mainly includes signal acquisition and storage module which can sample and save the signals of the voltage, current and temperature, and communication module, cable thermal characteristic parameters analysis module, and the interfaces of cable fatigue and life span analysis module, Dynamic Capability Increasing analysis module and electric power transmission control module. In PC, host analysis software was designed in the integrated development environment Visual C＋＋6.0. Experiment shows the testing system can sample and save the signals of electric power voltage, current and cable temperature, and analyze cable characteristic parameters of cable thermal model. With the interfaces, new methods can be embedded to analyze cable fatigue and life span and dynamically control electric power transmission.