基于Android系统的电力谐波检测仪

基于目前电力系统电能质量现状设计了一款基于Android系统的便携式电力谐波检测仪。介绍了检测仪硬件实现方案和软件设计方法。数据采集模块基于16位,6通道同步采样芯片AD7606,上层Cortex-A9平台搭载Android操作系统,完成检测系统配置,实现了数据处理、数据存储、人机界面控制功能。采用加窗FFT算法完成数据处理,降低了栅栏效应和频谱泄漏造成的检测误差。测试结果表明,该检测仪能够提取电能谐波信息,满足电力谐波检测要求。

Detection device for power harmonic based on Android system

According to the current situation of power quality in power system, a portable detection device for power harmonic based on Android is designed.This paper introduces the hardware implementation scheme and software design methods of detector.The circuit of data acquisition module based on the 16 bits, 6 channels simultaneous sampling chip of AD7606.Cortex-A9 platform which has equipped with Android operating system can complete configuration management and achieves data processing, data storage, human-computer interaction.The add window FFT algorithm is chosen to achieve data processing which can reduce the detection error caused by fence effect and spectral leakage problems.Test results show that this detector can extract the harmonic information and meet the testing requirements.