| 级联式DC/DC变换器输出阻抗的优化设计与稳定性 |
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| 引用本文： | 姚雨迎,张东来,徐殿国.级联式DC/DC变换器输出阻抗的优化设计与稳定性[J].电工技术学报,2009,24(3). |
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| 作者姓名： | 姚雨迎 张东来 徐殿国 |
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| 作者单位： | 1. 哈尔滨工业大学深圳研究生院,深圳,518055
2. 哈尔滨工业大学电气工程及自动化学院,哈尔滨,150001 |
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| 摘 要： | 级联式DC/DC变换器的稳定性是分布式供电系统设计中的重要问题.本文通过仿真和实验研究了单个DC/DC变换器的闭环输出阻抗的特性,提出源变换器输出阻抗的优化设计准则;在分析容性负载对变换器性能影响的基础上得出母线滤波电容的设计原则;并对实际的级联式DC/DC系统进行改进,采用注入电压源扰动法测试阻抗比,分析了系统的稳定性.实验结果表明,阻抗比的优化设计可以保证级联系统的稳定性.
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| 关 键 词： | 级联式DC/DC变换器 输出阻抗 阻抗比 稳定性 |
Output Impedance Optimization and Stability for Cascade DC/DC Converter |
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| Yao Yuying,Zhang Donglai,Xu Dianguo.Output Impedance Optimization and Stability for Cascade DC/DC Converter[J].Transactions of China Electrotechnical Society,2009,24(3). |
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| Authors: | Yao Yuying Zhang Donglai Xu Dianguo |
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| Affiliation: | 1.Harbin Institute of Technology Shenzhen Graduate School Shenzhen 518055 China 2.Harbin Institute of Technology Harbin 150001 China |
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| Abstract: | Stability of the cascade DC/DC converter is a significant issue in distributed power supply(DPS) system design.For a single DC/DC converter,the characteristics of closed-loop output impedance are analyzed by simulations and experiments.The optimal criterion show that output impedance should be designed under the condition of manimum input voltage and no-load.The influence of capacitors on the source converter is simulated and analyzed.Several propositional rules are concluded for DC bus filter design.Furthe... |
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| Keywords: | Cascade DC/DC converter output impedance impedance ratio stability |
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