摘要
为了“净化”电力电子并网接口,实现三相并网变流系统并网电流的精确、快速跟踪控制,探讨了nk±m次谐波重复控制器(nk±m RC)及其数字控制系统。nk±m RC是一种基于内模原理(IMP)的控制器,相对于常规重复控制器(CRC),具有误差收敛速度快、数字单元需求少的优点。将nk±m RC应用于三相脉宽调制(PWM)并网变流系统,包括三相整流和三相逆变并网系统,实验结果验证了nk±m RC的有效性和相对于CRC的优越性。nk±m RC为三相并网变流系统提供了一种高性能的并网电流 控制策略。
In order to "clean" power electronics grid-connected interface and achieve accurate and fast grid current tracking for three-phase grid-connected converter systems, nk±m order harmonics repetitive control(nk±m RC) and its digital control system are analyzed. nk±m RC is an internal-model-principle(IMP)-based controller. Compared with the conventional RC(CRC), nk±m RC has such advantages as faster error convergence rate and less digital data memory cells. In this paper, nk±m RC is applied into the three-phase pulse-width-modulation(PWM) grid-connected converter system. Experimental results validate the effectiveness of nk±m RC and its advantages compared with CRC. Therefore, nk±m RC enhances the gird current control performance of three-phase grid-connected converter systems.
作者
卢闻州
王尉
颜文旭
惠晶
LU Wen-zhou;WANG Wei;YAN Wen-xu;HUI Jing(Key Laboratory of Advance Process Control for Light Industry,Ministry of Education,School of Interact of Things Engineering,Jiangnan University,Wuxi 214122,China)
出处
《控制工程》
CSCD
北大核心
2018年第12期2177-2183,共7页
Control Engineering of China
基金
国家自然科学基金资助项目(51407084)
中国博士后科学基金资助项目(2017M610294)
江苏省博士后科研资助计划资助项目(1701092B)
关键词
内模原理
重复控制(RC)
nk±m次谐波
PWM并网变换器
误差收敛速度
Internal model principle(IMP)
repetitive control(RC)
nk±m order harmonics
PWM grid-connected converters
error elimination rate
