Digital predictive feed-forward controller for a dc-dc converter in plasma display panel

被引：21

作者：

Chae, Suyong ^{[1
]}

Hyun, Byungchul ^{[1
]}

Agarwal, Pankaj ^{[2
]}

Kim, Woosup ^{[1
]}

Cho, Bohyung ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Elect Engn & Comp Sci, Seoul 151744, South Korea

[2] Samsung Elect, Visual Display Div, Suwon 443742, South Korea

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2008年 / 23卷 / 02期

关键词：

dc-dc converter; digital feed-forward control; load current prediction; plasma display panel (PDP);

D O I：

10.1109/TPEL.2007.915646

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper describes a new digital control method to enhance the dynamic performance of a dc-dc converter used in plasma display panel (PDP). A simple digital PID compensator with duty ratio feed-forward control is proposed to minimize the output voltage variation while the load current is continuously changing. The duty ratio feed-forward is calculated, using noise-free load current information which is predicted by the available video data of the PDP. No separate current sensing circuit is required. A small signal z-domain feed-forward model is derived for the performance analysis and controller design. The proposed control method is experimentally verified on an asymmetrical half bridge dc-dc converter which supplies power to a 42 in PDP.

引用

页码：627 / 634

页数：8

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