基于Saber的飞机变频发电系统数字调压技术研究

Reseach on Digital Voltage Regulator Technology in the VF Power System

以飞机变频发电系统为应用背景,分析了发电系统的结构和调压器的性能需求,提出了数字调压器的设计方法。对比分析了瞬时采样和积分法采样算法,确定出数字调压器的采样算法,使用MAST语言编写数值积分计算信号均方根值模板,对数字调压器的采样进行仿真验证。通过对模拟调压器控制函数的分析,得出数字式调压器的控制算法。最后,在仿真软件Saber中搭建数字调压器的仿真模型,在不同转速、不同频率的条件下对系统进行突加和突卸负载实验,通过对波形的分析,发现了其满足交流电压瞬变极限的要求。

Based on the application of variable frequency power system, it puts forward a figure of the basic structure of regulator through the analysis of the power system structure and performance requirements of the regulator. The sampling algorithm of the digtal regulator is determined by comparing the difference of the instantaneous sampling and integration sampling method and uses the MAST language to compile the RMS template in order to carry out the digital simulation. It derived the control algorithm of the digtal regulator through the transfer function of analog voltage regulator. Finally,it establishs the simulation model of digtal voltage regulator in the simulation software to impact and sudden connect and disconnect of the load in the different speed and frequencies,through the analysis of waveforms and found that it meets the AC voltage transient limit. This design method to meet the requirements of the aircraft powersystem.