单周控制的发展及其应用  

Develpoment and Application of One-cycle Control

作　　者：万蕴杰[1] 周林[2] 张海[2] 夏雪[2] 雷鹏[2] 

机构地区：[1]广东省建筑设计研究院,广州510010 [2]重庆大学高电压与电工新技术教育部重点实验室,重庆400044

出　　处：《高电压技术》2007年第4期163-169,共7页High Voltage Engineering

基　　金：教育部"春晖计划"科研项目(2003589-13);重庆市科技计划项目(7952);重庆大学骨干教师资助计划项目(2003A22)~~

摘　　要：为进一步研究单周控制,探讨了单周控制理论的发展现状,包括单周控制系统的可行性研究、建模、稳态和动态性能分析及一些改进措施。单周控制是一种新颖的大信号、非线性控制策略,其抗干扰能力强、动态响应快,且每个周期内控制开关占空比d使输出和参考值相等或成比例,它可以在一个周期内抑制电源扰动、使开关平均值跟随动态参考值并消除开关误差。由于单周控制的核心是一个可复位积分器,因此比其他非线性控制更易实现。在分析了当前单周控制的应用情况,包括在DC/DC变换、功率因数校正、有源电力滤波器、不间断电源、功率放大和光伏电源最大功率点跟踪控制中的应用后,介绍了单周控制在各种实际应用中的特点,最后提出了单周控制有待进一步研究的问题。The one-cycle control （OCC） is a novel large-signal nonlinear control scheme with significant advantages of fast dynamic response, excellent power source anti-interference, robust performance, and automatic switching error elimination. It takes advantages of the pulsed and nonlinear nature of switching converters and achieves instantaneous dynamic control of the average value of a switched variable; more specifically the average value of the switched variable can reach a new steady-state after a transient in one switching cycle. There is no steady-state error or dynamic error between the control reference and the average value of the switched variable. One-cycle control is developed to dynamically control the duty-ratio d of a switch, so that in each cycle the average value of the switched variable at the switch output is exactly equal to or proportional to the control reference. One-cycle control restrans power source perturbations in one switching cycle; the average value of the switched variable follows the dynamic reference in one switching cycle; and the controller eliminations switching errors in one switching cycle. OCC＇s core conponent-the reset integrator is used to control the pulse width of an ae-dc converter, so it is more realizable than other nonlinear control methods. In this paper, new development of one-cycle control is discussed, which includes the feasibility, modeling, steady state and dynamic performance study as well as some improvement in one-cycle control. The application of one-cycle control to DC/DC converter, power factor correction （PFC）, active power filter （APF）, uninterruptible power supply （UPS）, power amplifier and maximum power point tracking controller for photovoltaic power generation is introduced. Finally, the future development of one-cycle control is discussed.

关 键 词：单周控制 电力电子变换器 脉宽调制 有源电力滤波器 不间断电源 功率放大 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]