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文章摘要
基于状态积分反馈的大功率逆变器 复合重复控制策略
Compound Repetitive Control Method for Large Power Inverter based on Integral State Feedback
Received:November 27, 2017  Revised:November 27, 2017
DOI:
中文关键词: 逆变器  离散模型  状态反馈  重复控制
英文关键词: inverter, discrete model, state feedback, repetitive control
基金项目:湖北省教育厅科技攻关项目(B2014031);湖北省自然科学基金(2016CFB516)
Author NameAffiliationE-mail
LIU JUN School of Electrical and Electronic Information Engineering, Hubei Polytechnic University, dlkxhs@163.com 
HU GUOZHENG* School of Electrical and Electronic Information Engineering, Hubei Polytechnic University, hgz_hs@163.com 
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中文摘要:
      本文提出一种基于状态积分反馈的大功率逆变器复合重复控制策略,利用积分状态反馈改善逆变器动态特性,利用重复控制优化输出电压波形质量,从而在复杂工况的独立运行中,实现了大功率逆变器的波形质量优化与动态性能改善,解决了大功率逆变器较低开关频率带来的输出特性控制难题。文章首先建立了大功率逆变器在离散域下的数学模型,基于该模型优化设计了状态积分反馈控制参数与重复控制器,进而建立大功率逆变器仿真模型,分别验证上述控制策略在突加突减阻感性负载、非线性负载和不对称负载等三种典型工况下的输出电压特性,仿真结果表明所提控制策略的有效性与可行性。
英文摘要:
      This paper proposes a compound repetitive control method for large power inverter based on integral state feedback. The dynamic performance of the inverter is improved by utilizing the integral state feedback method while the output voltage quality is optimized by using the repetitive control method. Then the control problems of the large power inverter caused by low switching frequency are solved achieving high dynamic performance and voltage quality under complex stand-alone operation conditions. Firstly, the discrete model of the large power inverter is built. Based on this model, the control parameters of integral state feedback and repetitive controllers are optimized designed. Then the simulation model of the inverter is built and the output voltage waveforms under conditions of step up/down loads, nonlinear loads and unbalanced loads are achieved. The simulation results indicate the effectiveness and feasibility of the proposed control method.
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