民机变频交流电源供电特性测试系统校准技术研究

Research on Calibration Technology of Test System for Civil Aircraft Variable Frequency AC Power Supply Characteristic

概述了民用飞机电源系统发展趋势,针对变频交流电源系统,结合国内外研究现状,阐述了民机变频交流电源供电特性测试系统校准技术研究的意义。依据变频交流电源供电特性测试系统的技术要求,研究了校准方法并编写了校准规范;基于直接数字频率合成(DDFS)、直接数字波形合成(DDWS)、宽带信号放大和滤波等技术,研制了变频交流电源供电特性校准信号源;依据校准方法中的工作流程及信号设置,编制了校准程序,形成了自动化的校准系统。最后,将上述校准系统应用于多个主机厂、所的电源试验系统,完成了现场试验验证。通过上述研究过程,建立了完善的民机电源供电特性测试系统校准能力,为未来民机电网特性和用电设备供电适应性领域的研究奠定了坚实基础。

This paper summarizes the development trend of civil aircraft power supply system.Aiming at the variable frequency AC power supply system,the significance of the research on calibration technology of the test system for civil aircraft variable frequency AC power supply characteristic is expounded.According to the technical requirements of the test system for the characteristics of variable frequency AC power supply,the calibration method is studied and the calibration specification is compiled.Based on the technologies of direct digital frequency synthesis(DDFS),direct digital waveform synthesis(DDWS),broadband signal amplification and filtering,the calibrating signal source for power supply characteristics of variable frequency AC power supply is developed.According to the workflow and signal setting in the calibration method,the calibration program is compiled,and an automatic calibration system is formed.Finally,the above calibration system is applied to the power supply test systems of several main engine plants and institutes,and the field test verification is completed.Through the above research process,a complete calibration capability of civil aircraft power supply characteristics test system is established,which lays a solid foundation for the future research of civil aircraft power supply characteristics and power supply adaptability of electrical equipment.