基于LabView的电能质量虚拟仪器分析仪

为了检测电能质量,本文提出一种基于Lab View软件的电能质量虚拟仪器分析仪,并解释了部分原理知识和Lab View程序设计的过程。该虚拟仪器可以简单快捷地检测电能质量并模拟不同情况电能质量波形图,然后计算其电能质量的失真度。该虚拟仪器分析仪利用利用小波算法检测电能信号突变点,选用的小波基为Meyer小波。该虚拟仪器分析仪也有助于加深学习者对于电能质量各种不同恶化情况的印象,可以直观地看到电能质量的变化。

To detect the power quality, this paper mainly proposes a virtual power quality analyzer based on the LabView to detect the power quality. Our paper also introduces the some basic principle and the design of the Lab View program. The analyzer can detect the power quality easily and swiftly and simulate different kinds of deterioration waveform before calculating the degree of distortion. The principle of detection is finding the signal singularity by wavelet algorism, which chooses Meyer wavelet as its wavelet basis. The virtual analyzer impress the learner of power quality with concrete waveform of various situations of power quality.