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| 电压控制型Buck DC/DC变换器输出阻抗优化设计 | |
| 引用本文： | 王建华,张方华,龚春英,陈小平. 电压控制型Buck DC/DC变换器输出阻抗优化设计[J]. 电工技术学报, 2007, 22(8): 18-23 |
| 作者姓名： | 王建华 张方华 龚春英 陈小平 |
| 作者单位： | 南京航空航天大学自动化学院,南京,210016;雅达电源科技(南京)有限公司,南京,210013 |
| 基金项目： | 台达电力电子科教基金(DRE02006007) |
| 摘 要： | 提出了电压控制型Buck DC/DC变换器最优截止频率fc选择,在此基础上给出了电压控制型Buck变换器输出阻抗的优化设计准则:采用PI调节器或单极点双零点补偿器,当截止频率满足最优截止频率选择时,能够有效抑制输出阻抗尖峰,从而确保系统良好的稳定与动态性能.实验结果验证了理论分析的正确性. |
| 关 键 词： | 输出阻抗 Buck变换器 截止频率 电压型控制 |
| 修稿时间： | 2007-03-03 |
Study of Output Impedandce Optimization for Voltage Mode Control Buck DC/DC Converter |
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| Wang Jianhua,Zhang Fanghua,Gong Chunying,Cheng Xiaoping. Study of Output Impedandce Optimization for Voltage Mode Control Buck DC/DC Converter[J]. Transactions of China Electrotechnical Society, 2007, 22(8): 18-23 | |
| Authors: | Wang Jianhua Zhang Fanghua Gong Chunying Cheng Xiaoping |
| Affiliation: | 1. Nanjing University of Aeronautics & Astronautics Nanjing 210016 China 2. ASTEC Nanjing 210013 China |
| Abstract: | In this paper, an optimum cut-off frequency for voltage mode control Buck dc/dc converter is presented, and a criterion for output impedance optimization is given as follows: with PI controller or single-pole-double-zero controller, the peak of output impedance is restrained effectively based on the optimum cut-off frequency compensation, which ensures good stability and dynamic performance of converters. Experimental results verified the theoretical analysis. |
| Keywords: | Output impedance Buck converter cut-off frequency voltage mode control |
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