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电网技术  2015 

并网逆变器电网阻抗检测技术综述

DOI: 10.13335/j.1000-3673.pst.2015.02.004, PP. 320-326

Keywords: 分布式发电系统,并网逆变器,电网阻抗测量,综述

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Abstract:

分布式发电系统中,并网逆变器的性能同电网阻抗密切相关,而电网阻抗随着时间和电网运行状态的变化而变化,因此精确的电网阻抗测量是实现并网逆变器在弱电网场合下高性能自适应控制的关键技术。已有文献研究了电网阻抗测量技术并提出了一些可行的方法,但已有研究未明晰各方法的优缺点。为此,分类整理了已有的电网阻抗测量方法,将其分为主动测量方式,被动测量方式和准被动测量方式

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