基于多环控制的Buck-Boost型LED驱动系统设计  

Design of Buck-Boost LED Lighting Driver Based on Multi-Loop Control

作　　者：李勇智[1] 王玲[1] 黄何平[1] 

机构地区：[1]湖南师范大学物理与信息科学学院,湖南长沙410082

出　　处：《吉首大学学报（自然科学版）》2013年第3期39-44,共6页Journal of Jishou University(Natural Sciences Edition)

基　　金：湖南省教育厅科学研究重点资助项目(12C1168)

摘　　要：在OCC(One Cycle Control)控制Buck-Boost型LED照明驱动的基础上提出一种多环控制策略,设计了Buck-Boost型高效LED照明驱动系统.重点阐述多环控制策略原理,建立系统模型,并分析了控制系统相关性能.系统仿真表明,新型多环控制系统具有功率因数高、输出阻抗低、动态性能好等性能,达到了预期目标.A multi-loop control strategy is proposed based on OCC（One Cycle Control）-controlled Buck-Boost LED lighting driver,and a novel efficient Buck-Boost LED lighting driver is obtained.The multi-loop control strategy principles are analyzed in detail,the system model is built and the control system performance is made in-depth studies.It can be seen through system simulations that the novel multi-loop control system has better performance such as high power factor,low output impedance and good dynamic performance,and it has achieved the desired goal.

关 键 词：LED照明 BUCK-BOOST 多环控制 小信号模型 功率因数 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论] TM464[自动化与计算机技术—计算机科学与技术]