航空交流电源畸变系数测试方法研究  

Research on measurements of distortion coefficient of aeronautic supply voltage

作　　者：郭慧娟[1] 张泾周[1] 马存福[1] 张广标[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710129

出　　处：《电子设计工程》2014年第10期141-143,共3页Electronic Design Engineering

摘　　要：为了有效的测量航空交流电源的畸变系数,文中提出了新的测量航空电源交流电压畸变系数的方法。通过对采样得到的三相电压数据进行基于FFT和IFFT的改进算法的分析运算,将电压的基波分量与谐波分量(包括整数次谐波分量和非整数次谐波分量)进行分离和提取,进而通过算法计算得到交流电压的畸变系数,设计验证算法。仿真和实验结果表明本文的方法具有测量精度高、效率高和实时性好的特点,且已应用于航空电源的测试系统中。In order to measure the distortion of the aeronautic AC voltage effectively, this paper proposes new methods to measure the distortion coefficient of aeronautic AC voltage. The paper utilizes the algorithm which bases FFT and IFFT algorithm to analysis the sampling data of the three-phase voltage, via separating and extracting the fundamental component and the harmonic component （including integer and non-integer harmonic components harmonics）, and then calculated the distortion coefficient by the algorithm. Design verification algorithms, and simulation and experimental results show that the methods has high accuracy, high efficiency and good features. And the measurements have been used in aviation supply test system.

关 键 词：交流电压畸变系数 过零点 FFT IFFT 数据采集与处理 

分 类 号：TN919.5[电子电信—通信与信息系统]