摘要
以NI公司的虚拟仪器软件LabWindows/CVI为开发平台,完成对电能质量常用参数的分析测量。试验过程中利用窗函数,低通滤波对信号进行处理,应用快速傅立叶变换求取基波和谐波的幅值、相位,利用相关方法求取信号的相位差,并将分析结果显示在上位机的界面上。最后对比传统检测方法得出结论,图形化的界面简洁清晰,检测的电能质量参数符合实际验算结果。
LabWindows/CVI of NI Corporation was used as platform, to measure general parameters of power quality. Mainly utilize Window Function, Lower Passed Filter to process the signal, apply Fast Fourier Transform to measure the amplitude and phase of fundamental and harmonious, use the correlation to obtain phase deflection, also show the analysis results on the interface of host computer. Finally, comparing with the traditional measurement methods, we can include that graphical interface has simple and clear features, power quality parameters by measurement accord with actual calculating result.
出处
《现代科学仪器》
2008年第5期28-30,共3页
Modern Scientific Instruments
