| 基于电容电荷平衡的DC/DC变换器的数字控制算法 |
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| 引用本文： | 陈乐柱,刘雁飞.基于电容电荷平衡的DC/DC变换器的数字控制算法[J].电工技术学报,2009,24(5). |
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| 作者姓名： | 陈乐柱 刘雁飞 |
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| 作者单位： | 安徽工业大学电气信息学院,马鞍山,243002 |
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| 摘 要： | 利用电容电荷平衡原理来推导出直流,直流变换器的动态控制算法.介绍了变换器在负载电流突变和输入电压突变时的最优算法模型,详细分析了如何减少输出电压的波动以及缩短恢复时间以提高变换器的动态响应.试验结果验证了这两种算法的有效性,在25W、400kHz的同步整流Buck变换器中,应用该控制算法使得直流/直流变换器的动态响应达到最优.
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| 关 键 词： | DC/DC变换器 数字控制算法 电压波动 电容电荷平衡 |
Digital Control Algorithms for DC/DC Converters Based on Capacitor Charge Balance |
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| Chen Lezhu,Liu Yanfei.Digital Control Algorithms for DC/DC Converters Based on Capacitor Charge Balance[J].Transactions of China Electrotechnical Society,2009,24(5). |
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| Authors: | Chen Lezhu Liu Yanfei |
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| Abstract: | The principle of capacitor charge balance is utilized to develop dynamic performance control algorithms for DC/DC converters.The digital model of optimal algorithms are presented under load current variation or input voltage variation.The proposed algorithms effectively improve the dynamic response of the converter by reducing the output voltage under/overshoot and minimizing the recovery time.Experimental results test the effectiveness of these two algorithms,in 25W,400kHz synchronous rectifier Buck conver... |
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| Keywords: | DC/DC converter digital control algorithms voltage fluctuation capacitor charge balance |
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