NDLI: Control, implementation, and analysis of a dual two-level photovoltaic inverter based on modified proportional

Content Provider	IET Digital Library
Author	Kumar, Nayan Saha, Tapas Kumar Dey, Jayati
Abstract	This study presents a modified proportional–resonant (M-PR) control topology for single-stage photovoltaic (PV) system, operating both in grid-connected and stand-alone modes. Dual two-level voltage source inverter fed three-phase open-end winding transformer is used to supply the load in this scheme. The M-PR controller is developed for the inner current control loop of the system. The M-PR controller has the ability to track ac current with zero steady-state error. The outer dc-link voltage control loop is developed through the indirect vector control method at synchronously rotating reference frame. The control scheme ensures improved performance of the system at variable solar irradiance and load disturbances. The performance analysis of the dual two-level PV inverter is carried out for different operating conditions. The control scheme is implemented in MATLAB–SIMULINK environment. The theoretical results are verified through experiments in a laboratory prototype. The experimental results show close match with their theoretical counterparts.
Starting Page	598
Ending Page	604
Page Count	7
ISSN	17521416
Volume Number	12
e-ISSN	17521424
Issue Number	Issue 5, Apr (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/12/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2017.0635
Journal	IET Renewable Power Generation
Publisher Date	2018-01-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Control of Electric Power System Current Control Dual Two-level Photovoltaic Inverter Dual Two-level PV Inverter Dual Two-level Voltage Source Inverter Fed Open-end Winding Transformer Dual Two-level Voltage Source Inverter Fed Three-phase Winding Transformer Electric Current Control Grid-connected Mode Indirect Vector Control Method Inner Current Control Loop Invertors Load Disturbances M-PR Control Topology M-PR Controller MATLAB-SIMULINK Environment Modified Proportional-resonant Control Topology Modified Proportional-resonant Controller Outer Dc-link Voltage Control Loop Photovoltaic Power System Power Generation Control Power Grid Power Transformer Single-stage Photovoltaic System Single-stage PV System Solar Power Stations Stand-alone Mode Synchronous Rotating Reference Frame Transformer And Reactors Transformer Windings Variable Solar Irradiance Voltage Control
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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