文章基本信息

标题：Grid Integration Scheme for a Three Phase Single Stage Photovoltaic system employing EKF
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作者：Sudarshan Swain ; Bidyadhar Subudhi
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2018
卷号：51
期号：1
页码：279-282
DOI：10.1016/j.ifacol.2018.05.071
语种：English
出版社：Elsevier
摘要：AbstractIn this work, a nonlinear Kalman filer based synchronization strategy is proposed for a single stage three phase grid tied PV system. We employed Extended Kalman Filter (EKF) to estimate the fundamental voltage components of the voltage at Point of common coupling (PCC) and the fundamental components of the load current. A Proportional-Integral (PI) controller is designed to control the DC bus capacitor voltage. Simulation and experimental studies of the proposed EKF based control scheme show that the proposed control scheme provides maximum PV power extraction and mitigates load current harmonics while reducing the Total Harmonic Distortion (THD) of the grid current and PCC voltage to a lower value these are well within the prescribed limits of IEEE 519 standards even for distorted grid voltage condition.
关键词：KeywordsExtended Kalman FilterGrid SynchronizationPhotovoltaicUnity Power Factor