一种电力二次设备自适应开关量数据采集系统的设计

Design of Adaptive Switching Input Data Acquisition System in Power System Secondary Equipment

文中介绍了高压继电保护装置开关量数据采集系统的基本功能及组成,提出了一种电力二次设备自适应开关量数据采集的系统设计及软件判别方法。文章通过对自适应开关量数据采集系统的光耦采集回路设计及实验验证,阐述了该数据采集系统的硬件及软件实现方法.可以通过软件调节自适应开关量输入电压动作门槛值,具备开关量电源的状态监测功能。对提高系统硬件研发的一次成功率、提高电力二次设备运行的稳定性和可靠性具有非常重要的作用。

The basic function and composition of adaptive switching input data acquisition system is introduced according to the design process of new generation high-voltage relay protection. A system design and software identification method for the data acquisition of the adaptive switching value of Power System Secondary Equipment is proposed. According to the optocoupler acquisition loop and experimental verification on the design of adaptive switch data acquisition system, the hardware and software implementation method of the data acquisition system is described. By software the systeru can adjust the threshold value of the adaptive switching input voltage and monitor switching power supply voltage. This system has a very important role in improving the success rate of hardware research and development, and improving the stability and reliability of the power system secondary equipment.