Digital control of a boost converter using posicast

被引：0

作者：

Feng, Q ^{[1
]}

Hung, JY ^{[1
]}

Nelms, RM ^{[1
]}

机构：

[1] Auburn Univ, Dept Elect & Comp Engn, Auburn, AL 36849 USA

来源：

APEC 2003: EIGHTEENTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, VOLS 1 AND 2 | 2003年

关键词：

posicast; feedback; boost converter; digital control; modeling uncertainty;

D O I：

暂无

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：

Analysis, design, simulation and DSP-based implementation of a digital controller using a. Posicast element are presented for the boost converter. Different from the classical Posicast approach, the proposed control method here reduces undesirable sensitivity greatly by using Posicast within a feedback loop. Furthermore, unfavorable effects on system stability caused by the RHP zero and parasitic elements in the boost converter's dynamics can be ignored in the design of controller because of its narrow open-loop bandwidth. Transient and frequency responses are presented. The performance of a Posicast-based controller for a boost converter has been investigated through simulation and verified by experiment. The sensitivity of the system dynamical response to variations in controller parameters was examined. The effect of load resistance variation was also tested.

引用

页码：990 / 995

页数：6

共 7 条

[1]

COOK G, 1966, IEEE T AUTOMATIC JUL, P556

[2] PID controller modifications to improve steady-state performance of digital controllers for buck and boost converters [J].

Guo, LP ;

Hung, JY ;

Nelms, RM .

APEC 2002: SEVENTEENTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, VOLS 1 AND 23, 2002, :381-388

[3]

Hung JY, 2002, ISIE 2002: PROCEEDINGS OF THE 2002 IEEE INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS, VOLS 1-4, P500, DOI 10.1109/ISIE.2002.1026340

[4]

SEVERNS RP, 1985, MODERN DC DC SWITHMO

[5] PRESHAPING COMMAND INPUTS TO REDUCE SYSTEM VIBRATION [J].

SINGER, NC ;

SEERING, WP .

JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME, 1990, 112 (01) :76-82

[6]

SMITH OJM, 1957, P IRE, V45, P1249

[7]

SMITH OJM, 1958, FEEDBACK CONTROL SYS, P331

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