电网扰动信号频谱分析仪设计

Design of the disturbance signal spectrum analyzer

针对当前电网中大量电能质量信号需要进行频谱分析的问题,本文基于FFT算法,利用Atmega128L单片机大容量flash存储器、高速数据处理能力以及AD转换器,LCD12864液晶显示屏、结合串口通信模块,设计了一款电网扰动信号频谱分析仪,进行了实际测试,结果表明该分析仪功耗低,性价比高,实用性较强,可用于电网质量实时监测时进行频谱分析。

In view of the current power grid requires a lot of power quality signal spectrum analysis of the problems, this article is based on FFT algorithm, using the large capacity flash memory Atmega 128 l MCU, high-speed data processing ability and AD converter, LCD12864 LCD display, serial communication module, designed a grid disturbance signal spectrum analyzer, the results show that the analyzer, low power consumption, can be used in the power grid quality real time monitoring for frequency spectrum analysis.