相关分析法在功率因数测量中的应用研究  

Application Research of Correlation Analysis in the Measurement of Power Factor

作　　者：郑立新 

机构地区：[1]福建省产品质量检验研究院,福建福州350002

出　　处：《质量技术监督研究》2012年第5期18-20,32,共4页Quality and Technical Supervision Research

摘　　要：功率因数是低压电器通断试验的一个重要参数,其测量的准确与否直接关系到产品的分断性能。通过引入数学中的相关分析原理,介绍了自相关和互相关函数的公式及意义,列出其在功率因数测量中的编程思路及流程,并使用图形化编程软件LabVIEW编程实现。试验结果表明,采用的相关分析法原理计算的功率因数准确可靠,改进了功率因数测试手段,提高了通断试验预期参数的调试效率。The power factor is an important parameter of the make-break test of low voltage electrical apparatus, the measurement accuracy of it is directly related to the product＇s interrupting performance. In this article, I presented the formula and the significance of autocorrelation and cross- correlation functions by introduce correlation analysis, pointed out the thought and process of power factor measurement programming, and then used graphical programming software LabVIEW to program. The test results show that, power factor is more accurate and reliable by using the correlation analysis principle, which improves the method of power factor measurement, making the expected parameter debugging of making and breaking test more efficiency.

关 键 词：相关分析 自相关 互相关 功率因数 LABVIEW 

分 类 号：TM933.31[电气工程—电力电子与电力传动]