A General Digital PID Controller Based on PWM for Buck Converter

被引：0

作者：

Zhou, Chu ^{[1
]}

Zhang, Qiongying ^{[1
]}

Ezechias, D. D. ^{[1
]}

Gao, Yu ^{[1
]}

Deng, Hongtao ^{[1
]}

Qu, Shaocheng ^{[1
]}

机构：

[1] Cent China Normal Univ, Coll Phys Sci & Technol, Dept Elect & Informat Engn, Wuhan, Hubei Province, Peoples R China

来源：

2014 11TH WORLD CONGRESS ON INTELLIGENT CONTROL AND AUTOMATION (WCICA) | 2014年

基金：

中国国家自然科学基金;

关键词：

DSP; Buck converter; Digital PID control; PWM;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Based on the function of high performance DSP analog-digital converter (ADC) and pulse width modulator (PWM), a general digital PID control Buck converter is designed. Based on design of main circuit, the basic principle of PID control algorithm based on PWM is discussed in detail. Through the analysis of the PWM generation mode by DSP and PID control algorithm, a universal digital PID controller is designed. Then a prototype of digital control Buck converter based on PWM is constructed. On one hand, static tests showed that static value of the output voltage changes very little in the presence of input voltage and load change of Buck converter. On the other hand, dynamic tests showed that its output voltage fluctuation peak is small when Buck converter input voltage and load fast changes, and can recover quickly. Experiments showed that the proposed system is high accuracy, fast dynamic response and robustness.

引用

页码：4596 / 4599

页数：4

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