| 隔离式DC/DC变换器的建模与控制 |
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| 引用本文： | 皇金锋,董锋斌. 隔离式DC/DC变换器的建模与控制[J]. 电力电子技术, 2010, 44(4) |
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| 作者姓名： | 皇金锋 董锋斌 |
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| 作者单位： | 陕西理工学院,陕西,汉中,723003;陕西理工学院,陕西,汉中,723003 |
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| 基金项目： | 陕西省教育厅科学研究计划资助项目，陕西理工学院基金资助项目 |
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| 摘 要： | 根据隔离式DC/DC变换器的基本原理,在低频、小信号、小纹波3个假设条件下,利用状态空间平均法和欧拉公式建立了正激直流变换器的小信号数学模型,采用超前-滞后校正装置对系统进行了串联校正,并利用Matlab软件进行校正辅助分析。在此基础上组建了电压型闭环自动控制系统,实验结果表明系统具有良好的动静态性能,验证了该数学模型的正确性以及控制策略的合理性。
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| 关 键 词： | 变换器 正激 建模 欧拉公式 |
Modeling and Control on Isolated DC/DC Converter |
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| Abstract: | According to the principle of isolated DC/DC converter, under the assumption conditions of low-frequency, small signal and small ripple wave,small signal math model of forward DC/DC converter is estabished by using state-space averaging method and euler formula.The system is corrected correction by the series device with lead and lag correction, and the Matlab sofeware is also used to assistant analysis system.On this basis,the automatic closed control system is set up.The experimental resuhs show that the system has perfect dynmaic and static character.So it proves that the mathematical model is correct and the control strategy is reasonable. |
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| Keywords: | converter forward modeling euler formula |
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