分数阶重复控制在逆变器复合控制中的研究  

Research on Fractional Repetitive Control for Inverter With a Compound Control Strategy

作　　者：张浩[1] 叶永强[1] 杨峰[1] 庄超[1] 

机构地区：[1]南京航空航天大学,江苏南京210016

出　　处：《电力电子技术》2013年第6期4-6,35,共4页Power Electronics

基　　金：国家自然科学基金(61074161);江苏省自然科学基金(BK2010507);教育部博士点基金(新教师类)(20103218120014)~~

摘　　要：传统重复控制器在系统采样频率和期望输出频率的比值为非整数时,将无法精确跟踪输入信号,导致输出静差变大,甚至影响系统稳定性。针对该问题引入分数延迟思想,提出了基于拉格朗日插值的分数阶重复控制理论,介绍了其控制模型和参数优化设计。最后,通过实验将分数阶重复控制应用在逆变器的复合控制策略中,验证了理论分析的正确性。The conventional repetitive controller cannot accurately track the input signal when the ratio of the system sampling frequency to the desired output frequency is non-integer.The non-integer problem will also suddenly increase the steady-state error of the output and even influence the stability of the system.This paper introduces the idea of fractional delay, and proposes the fractional repetitive controller based on Lagrange interpolation together with the op- timization of its parameters.At last, a control rapid-prototype is designed ,where the fractional repetitive controller is put in the compound control strategy of the inverter.The effectiveness is verified by experimental results.

关 键 词：逆变器 分数延迟 复合控制 分数阶重复控制 

分 类 号：TM464[电气工程—电器]