飞艇DC-DC配电器供电系统优化设计  

Optimization Design of DC-DC Distributors Power Supply System Used in Airships

作　　者：宋青[1,2] 李兆杰[1] 

机构地区：[1]中国科学院光电研究院,北京100094 [2]中国科学院大学,北京100190

出　　处：《计算机仿真》2015年第12期30-35,71,共7页Computer Simulation

摘　　要：研究飞艇DC-DC配电器供电系统的优化问题。飞艇配电器内含有多个DC-DC,它们在工作时会辐射高频电磁波,造成相互干扰。干扰对配电安全构成了隐患,亟待解决。采用滤波的方法,为DC-DC安装外置滤波器,可减小干扰和隐患。而传统滤波器结构和功能较单一,鲁棒性较差,不适合飞艇用。为解决上述问题,设计了一种改进型低通滤波器。首先构建了该滤波器的模型,在电源线滤波器的基础上增加了阻尼单元,去掉了扼流圈,然后分析了滤波器的频率特性,最后用Simulink仿真。结果表明,改进滤波器能够有效过滤DC-DC产生的高频干扰。This paper dealed with an optimization problem of DC - DC distributors power supply system used on airships. A distributor of an airship usually contains multiple DC - DC modules. When running, they radiate high - frequency electromagnetic waves towards each other, causing interference, which brings a hidden danger to power distribution safety. It is an urgent problem to be solved. Using filtering method, installing an external filter for DC - DC can reduce interference and hidden trouble. In this respect, this paper designed an improved low - pass filter. First, we constructed the model of the filter by increasing a damping unit and removing the choke based on power line filters. Then we analyzed its frequency characteristics, and finally we made a simulation using Simulink. The result shows that the filter designed in this paper can effectively filter the high - frequency interference produced by DC - DC modules.

关 键 词：飞艇 配电器 直流转直流模块 高频干扰 滤波器 

分 类 号：TM743[电气工程—电力系统及自动化]