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傅里叶变换是分析飞机供电系统谐波含量等参数的主要方法,但该方法计算量大、实时性差。在此通过分析国军标谐波参数标准,利用Lab VIEW虚拟仪器技术,构建了简单实用的程序分析飞机供电系统谐波。相对传统分析方法可以快速得到供电系统的谐波特征参数,使用方便、实时性好。通过传感器、信号采集模块等建立了某型飞机地面电源测试系统,对采集的系统波形采用Lab VIEW谐波分析程序,可以实时显示系统的谐波含量等特征参数,判断出该系统的供电质量。
Fourier transform is the main method to analyze the harmonic content and other parameters of the aircraft power supply system. However, this method is computationally intensive and has poor real-time performance. In this paper, by analyzing the national standard harmonic parameter standard, the use of Lab VIEW virtual instrument technology to build a simple and practical program to analyze aircraft power system harmonics. Relatively traditional analysis methods can quickly get the harmonic characteristic parameters of the power supply system, which is easy to use and has good real-time performance. The ground power test system of a certain type of aircraft is established by sensors and signal acquisition modules. Lab VIEW harmonic analysis program is used to collect the waveform of the system. The harmonic parameters of the system can be displayed in real time and the power quality of the system can be judged.