| 脉冲序列控制DCM Buck变换器输出电压纹波研究 |
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| 引用本文： | 许建平,牟清波,王金平,秦明.脉冲序列控制DCM Buck变换器输出电压纹波研究[J].电机与控制学报,2010,14(5). |
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| 作者姓名： | 许建平 牟清波 王金平 秦明 |
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| 作者单位： | 西南交通大学电气工程学院,四川成都,610031 |
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| 基金项目： | 国家自然科学基金，中央高校基本科研业务费专项资金资助 |
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| 摘 要： | 针对脉冲序列控制开关DC-DC变换器的非线性控制特性导致输出电压纹波较大,研究脉冲序列控制方法,并对工作于电感电流断续模式的脉冲序列控制Buck变换器进行分析.该方法通过调整两组预先设定的控制脉冲的组合,实现开关变换器输出电压的调整,针对其控制特性研究存在滤波电容等效串联电阻时变换器在不同工作状态下的脉冲序列组合方式,最后基于现有的纹波分析方法分析其实际情况下输出电压纹波特性,为脉冲序列控制的实际应用提供参考.仿真实验结果表明脉冲组合及纹波分析的结论与实际相吻合.
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| 关 键 词： | DC-DC变换器 脉冲序列控制 输出电压纹波 Buck变换器 断续模式 |
Output Voltage ripple of pulse train controlled DCM buck converter |
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| XU Jian-ping,MU Qing-bo,WANG Jin-ping,QIN Ming.Output Voltage ripple of pulse train controlled DCM buck converter[J].Electric Machines and Control,2010,14(5). |
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| Authors: | XU Jian-ping MU Qing-bo WANG Jin-ping QIN Ming |
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| Affiliation: | XU Jian-ping,MU Qing-bo,WANG Jin-ping,QIN Ming (College of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | For the large output voltage ripple caused by the nonlinear characteristics of pulse train(PT) control DC-DC converters,a novel non-linear control method,PT control technique,is investigated. PT controlled Buck converter operating in discontinuous conduction mode (DCM) is studied in this paper. PT control realized the output voltage regulation of switching converter with two preset control pulses,the combination of control pulses in a pulse train repetition cycle considering the existence of the filter capa... |
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| Keywords: | DC-DC converters pulse train output voltage ripple Buck converter discontinuous con-duction mode |
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