NDLI: Current source inverter-based photovoltaic system with enhanced active filtering functionalities

Content Provider	IET Digital Library
Author	Geury, Thomas Pinto, Sonia Gyselinck, Johan
Abstract	This study proposes a three-phase photovoltaic (PV) inverter, with active power filtering capability that allows for maximum power point tracking (MPPT) and a nearly unitary power factor (PF) in the connection to the low voltage grid. A single-stage current source inverter, with an inductive DC link, connects the PV array to the three-phase grid for reduced cost and improved performances, and the MPPT algorithm controls directly the power of the PV array. On the basis of the power balance of the whole system, the grid current references are generated in a grid-synchronised dq frame allowing for the mitigation of low-frequency current harmonics introduced by a non-linear load connected at the point of common coupling, without the need for additional measurements. Active damping is used to minimise filter losses and reduce the high-frequency harmonics that result from the semiconductors switching. Simulation and experimental results are presented in unloaded and loaded situations, and with varying irradiance, to confirm the active filtering, PF regulation and MPPT operate correctly.
Starting Page	2483
Ending Page	2491
Page Count	9
ISSN	17554535
Volume Number	8
e-ISSN	17554543
Issue Number	Issue 12, Dec (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/8/12
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2014.0814
Journal	IET Power Electronics
Publisher Date	2015-12-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Active Filter Constant Current Sources Cost Reduction Current Source Inverter Enhanced Active Power Filtering Functionality Grid Current Reference Grid-synchronised Dq Frame Harmonics Inductive DC Link Invertors Low-frequency Current Harmonics Maximum Power Point Trackers MPPT Algorithm Nonlinear Load Connection PF Photovoltaic Power System Point of Common Coupling Power Factor Power Grid Power Harmonic Filter Power Supply Quality PV Array Semiconductor Switching Single-stage Current Source Inverter Solar Power Stations Synchronisation Three-phase Grid Three-phase Photovoltaic Inverter System
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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