| 基于MATLAB的数字式DC／DC开关电源系统建模 |
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| 引用本文： | 刘晓宇,徐申,孙伟锋.基于MATLAB的数字式DC／DC开关电源系统建模[J].通信电源技术,2009,26(2):1-5. |
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| 作者姓名： | 刘晓宇 徐申 孙伟锋 |
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| 作者单位： | 东南大学,江苏,南京,210096 |
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| 摘 要： | 数字电源的开发是电源的发展趋势，有着更加灵活的控制性能，更加稳定的系统输出，并且可以防止系统老化等诸多优势。文中以数字电源系统结构为基础，使用MATLAB这一功能强大的数学处理工具，分别完成了DC／DC变换器，PID（比例、积分、微分）控制算法以及数字式脉冲宽度调制技术（DPWM）；接着利用MATLAB的绘图功能，在对DC／DC变换器主结构与反馈回路进行系统联调后，清晰地给出了控制算法的实现效果图，为数字电源算法的验证及其程序化搭建了一个简捷明了的平台。
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| 关 键 词： | 数字电源 PID算法 数字脉宽调制技术 MATLAB仿真 |
The Model of the Digital DC / DC Converter System Based on MATLAB |
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| LIU Xiao-yu,XU Shen,SUN Wei-feng.The Model of the Digital DC / DC Converter System Based on MATLAB[J].Telecom Power Technologies,2009,26(2):1-5. |
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| Authors: | LIU Xiao-yu XU Shen SUN Wei-feng |
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| Affiliation: | (Southeast University, Nanjing 210096,China) |
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| Abstract: | The development of digital power supply has becoming a trend of power supply, which has a more flexible control performance, a more stable system output, and an advantage of preventing system aging. In this paper, on the basis of the digital power system structure, a DC / DC converter model , Proportional, Integral and Derivative （PID） control algorithm and Digital Pulse Width Modulation （DPWM） are realized by MATLAB. After combined adjusting of the main structure and feedback loop of DC / DC converter, the graph of digital power control algorithmt is clearly given by using graphic function in MATLAB. This work provides a simple and an effective platform for the verification and program of digital power supply. |
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| Keywords: | digital power supply PID control algorithms pulse width modulate digital pulse width modulation technique MATLAB simulation |
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