摘要
大规模并行计算机电源系统通常都采用分布式供电架构,系统稳定性设计是其中的难点和关键点。本文提出了一种实用的输入输出阻抗匹配方法,详细分析了变换器的输入和输出阻抗,绘制了阻抗特性波特图,根据仿真结果确定了总线上的输出电容。电源系统测试和运行结果表明,在总线上放置合适的电容可以解决系统稳定性问题。
The distributed power architecture is generally used in the power system of massively parallel eomputers. The most important factor is system stability in the bus architecture design. An effective impedance matching technique is introduced in this paper. The input and output impedance of converters are analyzed in detail, and the Bode plots of impedance characteristics are presented. Based on the simulation results, the quantity of bus capacitors is decided The experimental results show that system stability can be solved by placing the right bus capacitors.
出处
《计算机工程与科学》
CSCD
北大核心
2009年第3期118-121,共4页
Computer Engineering & Science
关键词
大规模并行计算机
分布式电源系统
稳定性分析
输入输出阻抗
massively parallel computer
distributed power system
stability analysis
input and output impedance
