Robust ℌ∞ control for grid connected PWM inverters with LCL filters

L. Maccari, J. Massing, L. Schuch, C. Rech, H. Pinheiro, V. Montagner, R. Oliveira
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引用次数: 38

Abstract

This paper provides a robust control design based on linear matrix inequalities applied to PWM inverters with LCL filters connected to the grid under uncertain parameters. The proposed controller ensures: i) closed-loop robust stability against parameter uncertainty; ii) robust pole location with a prescribed ℌ∞ guaranteed cost; iii) tracking of sinusoidal reference and rejection of disturbances. Simulation and experimental results show good transient and frequency responses for the closed-loop system, as well as limits of robust stability.
带LCL滤波器的并网PWM逆变器的鲁棒∞控制
本文提出了一种基于线性矩阵不等式的鲁棒控制设计方法,用于参数不确定情况下带LCL滤波器的PWM逆变器并网控制。所提出的控制器保证了:i)对参数不确定性的闭环鲁棒稳定性;Ii)具有规定的∞保证成本的鲁棒极点定位;Iii)正弦基准跟踪和干扰抑制。仿真和实验结果表明,该闭环系统具有良好的瞬态响应和频率响应,但具有一定的鲁棒稳定性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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