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Buck电路PID参数继电反馈自整定仿真分析
资料介绍
摘要:基于MATLAB平台,以Buck型电路为对象,在MATLAB/Simulink中先搭建数学模型,采用改进型继电反馈技术,通过激励电源系统产生极限环振荡,测出原系统参数,根据经验公式,确定补偿电路,最后分析闭环控制系统性能指标.通过与原始Z—N法和适度超调法仿真对比,建立的改进型仿真电路可以实现对Buck型开关电路的PID补偿参数自动整定,达到了较好的设计要求.
Based on MATLAB platform, and Buck type circuit as target, we first build mathemat- ical models in the MATLAB / Simulink, adopting improved relay feedback technology, through the excitation power system to generate limit cycle oscillations, then measure the parameters of the origi- nal system according to the empirical formula to determine the compensation circuit, finally analyse the closed--loop control system performance. Comparing the simulation of the original Z--N method with that of moderate overshoot method, we achieve the established circuit simulation on PID com- pensatory parameter auto--tuning to Buck switching circuit, which better meet the desired design re- quirements.
部分文件列表
文件名 | 大小 |
Buck电路PID参数继电反馈自整定仿真分析.pdf | 276K |
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