电力计量装置电压异常状态检测系统设计

Design of voltage abnormal state detection system for power metering device

摘要:

针对电力计量装置电压异常的问题,设计出了检测电力计量装置异常电压状态的检测系统。该系统首先对检测装置的电压、电流信息进行采样,然后将采集到的电压、电流信息输入至放大单元进行信息放大。放大单元将放大后的信息输出至A/D转换单元进行模数转换,A/D转换单元将输出信号输出至STM32F407VGT6计算单元进行计算、分析。与STM32F407VGT6计算单元还连接有模拟开关,实现多路复用采集的方式,有效地节约了物质资源,缩小了硬件使用面积。本文设计的系统还能够实现数据的远距离传输,使得更高一层管理系统实时获取底层检测数据,有助于用户及时把握电力计量装置的整体运行情况。通过试验,结果表明,该系统的检测数据准确性达100%,符合设计及使用要求,具备较强的实用性。

Abstract:

A detection system for detecting the abnormal voltage state of the power metering device is designed for the problem of abnormal voltage of the power metering device. The system first samples the voltage and current information of the detecting device, and then inputs the collected voltage and current information to the amplifying unit for information amplification. The amplifying unit outputs the amplified information to the A/D conversion unit for analog-to-digital conversion, and the A/D conversion unit outputs the output signal to the STM32F407VGT6 computing unit for calculation and analysis. An analog switch is also connected to the STM32F407VGT6 computing unit to implement multiplexed acquisition, which effectively saves material resources and reduces the hardware usage area. The system designed in this paper can also realize the long-distance transmission of data, so that the higher-level management system can obtain the underlying detection data in real time, which helps the user to grasp the overall operation of the power metering device in time. Through the test, the results show that the accuracy of the detection data of the system reaches 100%, which meets the design and use requirements, and has strong practicability.