摘要
针对传统电能质量分析系统存在的存储容量小,显示功能单调,非正弦电参量测量误差大,数据分析处理能力欠缺等问题,提出了基于LabWindows/CVI虚拟技术平台的电能质量分析仪的设计方案,其中包括利用过零检测方法进行频率检测和测量;利用快速傅立叶变换求出基波和谐波幅值、相位;利用相关方法求信号的相位差等.经反复测量及试验,效果良好.
Traditional power quality analyzer has the problems that storage capacity is small, the display function is monotonous, the measurement error of non-sinusoidal parameter is big and the data analyzing and processing is imperfect. This paper proposed the design scheme of power quality analyzer based on LabWindows/CVI. It includes Measure the frequency by Zero Cross Detection.To measure the amplitude and phase of fundamental and harmonious by Fast Fourier Transform and to get the phase deflection by correlation. The experimental effect is good.
出处
《湖南城市学院学报（自然科学版）》
CAS
2008年第3期47-50,共4页
Journal of Hunan City University:Natural Science
基金
湖南省自然科学基金资助项目(07JJ6120)
