基于ARM和DSP的电网监测系统的设计

Design of a Electrical Network Monitoring Device Based on ARM and DSP

设计了一种基于ARM和DSP的电网监测系统的软硬件设计方案;利用TMS320F2812DSP和高速AD芯片ADS8364实现对现场电信号的采集分析与加Nuttall窗多层插值校正处理,仿真结果表明该算法能够实现电力系统谐波的准确分析;DSP通过串口和嵌有Linux操作系统的S3C2440通信,通过Internet登陆检测系统网页,电网工作人员能够实时查看电网参数情况及对故障进行处理,用户能够实时查看消费信息;该设计方案满足分布式供电系统电能参数的计量要求,实现了电网参数实时远程网络监控。

A new design of ARM and DSP electrical network monitoring device is proposed in this paper. TMS320F2812 DSP and high precision ADS8364 are used for power quality data synchronous acquisition. Nuttall window are studied, the using of the phase of rotation ad- justment and multilayer summation reduce the spectral interferences, the proposed can achieve the electrical harmonic analysis and fulfill the electric parameter measuring requirements. Distributed electric Monitoring values are computed in the DSP, which communicates with $3C2440 embedded with Linux system via serial port and transfers power data and computed values. By logging in to the homepage of the ob- servation system, power grid manager can check the operation status of electric power network in real--time and deal with the failure messa- ges, user can view the consumer information and power grid parameters in real-- time. The operation system fulfill the electric parameter measuring requirements of distributed electric energy supply system and it is satisfactory in remote network monitor control and real--time.