Out impedance optimization for bus converter in high-performance computer

doi:10.3724/SP.J.1087.2012.01774

Journal of Computer Applications ›› 2012, Vol. 32 ›› Issue (06): 1774-1777.DOI: 10.3724/SP.J.1087.2012.01774

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Out impedance optimization for bus converter in high-performance computer

YAO Xin-an¹,²,HU Shi-ping¹,SONG Fei¹

1. School of Computer Science, National University of Defense Technology, Changsha Hunan 410073, China
2. School of Electrical and Information Engineering, Hunan University, Changsha Hunan 410082, China

Received:2011-11-29 Revised:2012-01-18 Online:2012-06-04 Published:2012-06-01
Contact: YAO Xin-an

高性能计算机总线变换器输出阻抗优化设计

姚信安¹,²,胡世平¹,宋飞¹

1. 国防科学技术大学计算机学院,长沙 410073
2. 湖南大学电气与信息工程学院，长沙 410082

通讯作者: 姚信安
作者简介:姚信安(1972-)，男，江西萍乡人，副研究员，博士研究生，主要研究方向：高性能计算机电源系统；〓胡世平(1954-)，男，湖北广济人，研究员，主要研究方向：高性能计算机电源系统设计、电磁兼容；〓宋飞(1973-)，男，江苏睢宁人，助理研究员，硕士，主要研究方向：高性能计算机电源系统。
基金资助:
国家863计划项目

Abstract

Abstract: To solve system stability of high-performance computer powered by intermediate-bus distributed power system, the output impedance characteristics of three control schemes of bus converters were analyzed in detail, and the input impedance low-frequency value of point of load converter and the output impedance peak of bus converter were presented. Based on impedance criterion, the output impedance of bus converter was optimized. Then, the input and output impedance were measured by frequency response analyzer, which verified theoretical analysis. Experimental and application results show that output impedance optimization can effectively solve power system stability of high-performance computer.

Key words: high-performance computer, intermediate bus architecture, bus converter, output impedance, stability

摘要： 针对中间母线架构分布式供电的高性能计算机电源稳定性问题，详细分析了三种不同控制方法总线变换器的输出阻抗特性，给出了负载点变换器输入阻抗低频值和总线变换器输出阻抗峰值的计算公式。建立了由一个总线变换器和两个负载点变换器组成的实验电路，对总线变换器输出阻抗进行了优化设计，并实际测量了输入和输出阻抗，验证了理论分析的正确性。实验和应用结果表明，输出阻抗优化设计可以有效解决高性能计算机电源稳定性问题。

关键词: 高性能计算机, 中间母线架构, 总线变换器, 输出阻抗, 稳定性

CLC Number:

TP303.3

YAO Xin-an HU Shi-ping SONG Fei. Out impedance optimization for bus converter in high-performance computer[J]. Journal of Computer Applications, 2012, 32(06): 1774-1777.

姚信安胡世平宋飞. 高性能计算机总线变换器输出阻抗优化设计[J]. 计算机应用, 2012, 32(06): 1774-1777.

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Out impedance optimization for bus converter in high-performance computer

高性能计算机总线变换器输出阻抗优化设计

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