基于虚拟仪器技术的相角测量研究

Research of Phase Difference Measurement based on Virtual Instrument Technology

将虚拟仪器技术应用于电力系统相角的测量,本文介绍了基于LabWindows/CVI开发平台的相角测量的相关分析法。对相关分析法进行了改进,提出了双相关分析法。通过实验,分析了算法对相角测量精度的影响。与传统的硬件电路测量方法相比,基于虚拟仪器技术的相角测量算法具有测量精度高、抗干扰能力强等优点。借助于通信网络,可以实现电力系统相角的实时测量。

Virtual Instrument technology is applied in phase difference measurement for electric power system, in this paper correlation analysis are discussed. Correlation analysis is improved, and a sort of new method is brought forward on double correlation analysis. By simulate experiment, the measuring error is analyzed.Compared with traditional way, the algorithm for phase difference measurement based on LabWindows/CVI has the advantages of exactitude, speedy and anti jamming. In virtue of computer communications network, the phase difference real time measurement is realized.