无差拍控制高频交流调压电源的研究  

Research on High-Frequency AC Voltage Regulating Power Source Using a Deadbeat Controller

作　　者：赵恩来[1] 沈锦飞[1] 

机构地区：[1]江南大学电气自动化研究所,江苏无锡214122

出　　处：《通信电源技术》2013年第2期13-16,共4页Telecom Power Technology

基　　金：中央高校基本科研业务费专项(JUSRP11022);无锡市工业装备节能与控制重点实验室(CMES0915)

摘　　要：为解决交流调压电源接非线性负载时输出效果不理想的问题,设计了一种用于单相高频交流调压电源的无差拍控制器。该控制器是基于系统的离散化模型建立的,由内部电流环、外部电压环和用于补偿系统稳态误差的前馈网络组成。文中提出的无差拍控制器最主要的特点是电压环和电流环具有相同的结构并且使用相同的采样周期,简化了其设计的过程。为了消除外界干扰,该控制器还加入了解耦网络,增强了系统对于负载变化的鲁棒性。在对单相高频交流调压电源的拓扑结构、工作原理和控制策略的理论分析基础上,基于Matlab/Simulink平台进行了仿真验证,给出了仿真结果。In order to solve the problem that the output result is undesirability when AC regulation voltage power joint the nonlinear load, a deadbeat controller for single phase high frequency AC regulation voltage power supply is introduced. This con- troller is established based on discrete model of the system and composed by internal current loop, external voltage loop and fee＆ forward network which is used to compensate the system steady-state error. In this paper, the main characteristic of deadbeat con- troller is voltage loop and current loop has the same structure and use the same sampling period, simplify the design proces~ In or- der to eliminate interference, this controller also add decoupling network to enhance the system robustness towards toad variations. Then, on the basis of theoretical analysis of the single phase high frequency AC regulation voltage power supply topology, working principle and control strategy, the simulation is taken based on the Matlab/Simulink platform and the result is showed.

关 键 词：无差拍控制 高频交流调压 闭环控制 干扰解耦 

分 类 号：TN86[电子电信—信息与通信工程]