宽电压输入范围调节/变换装置的建模与仿真  

Modeling and Simulation for a Converter/Regulatorwith a Wide Range of Input Voltage

作　　者：周增福[1] 严仰光[1] 

机构地区：[1]南京航空航天大学航空电源航空科技重点实验室,南京210016

出　　处：《南京航空航天大学学报》2005年第3期365-370,共6页Journal of Nanjing University of Aeronautics & Astronautics

摘　　要：提出了一种适用于未来先进飞机的新型专用电源系统的设计方案,它由永磁同步发电机和宽电压输入范围的变换/调节装置组成。本文利用Matlab工具建立了宽电压输入范围变换/调节装置的仿真模型。另外,还对滤波器的结构和参数对输出直流电压脉动和发电机相电流波形的影响及相电流谐波进行了仿真分析。仿真结果表明,在Boost-buck变换器之前增加滤波器,并不能改善系统直流输出电压脉动情况,反而会造成发电机三相电流谐波含量增大,对发电机产生不利的影响。新型专用电源系统直流电压脉动幅值的控制是靠变换器自身调节实现的。A novel design project for the special electrical power supply system of the future advanced aircraft is provided. The system consists of a permanent magnet synchronous generator (PMSG) and a converter/regulator with a wide range of the input voltage. This paper presents a model of the converter/regulator by using Matlab tool. In addition, the paper analyzes the influence of the filter structure and parameters on the output DC voltage ripple and the shape of phase currents, as well as harmonics of phase currents. Simulation results show that the ripple cannot be improved if the filter is added to the system in front of the boost-buck converter. The filter produces more content of harmonic currents in the generator, which can make bad effect on the generator. The ripple of the new system is controlled only by self-adjustment of the converter.

关 键 词：飞机专用电源系统 变换/调节装置 建模与仿真 

分 类 号：TM46[电气工程—电器]