NDLI: ZSI for PV systems with LVRT capability

Content Provider	IET Digital Library
Author	Sajadian, Sally Ahmadi, Reza
Abstract	This study proposes a power electronics interface (PEI) for photovoltaic (PV) applications with a wide range of ancillary services. As the penetration of distributed generation systems is booming, the PEI for renewable energy sources should be capable of providing ancillary services such as reactive power compensation and low-voltage ride through (LVRT). This study proposes a robust model predictive-based control strategy for grid-tied Z-source inverters (ZSIs) for PV applications with LVRT capability. The proposed system has two operation modes: normal grid condition and grid fault condition modes. In normal grid condition mode, the maximum available power from the PV panels is injected into the grid. In this mode, the system can provide reactive power compensation as a power conditioning unit for ancillary services from DG systems to main ac grid. In case of grid faults, the proposed system changes the behaviour of reactive power injection into the grid for LVRT operation according to the grid requirements. Thus, the proposed controller for ZSI is taking into account both the power quality issues and reactive power injection under abnormal grid conditions. The proposed system operation is verified experimentally, the results demonstrate fast dynamic response, small tracking error in steady-state, and simple control scheme.
Starting Page	1286
Ending Page	1294
Page Count	9
ISSN	17521416
Volume Number	12
e-ISSN	17521424
Issue Number	Issue 11, Aug (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/12/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2018.5104
Journal	IET Renewable Power Generation
Publisher Date	2018-06-28
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Abnormal Grid Condition Ancillary Services Control of Electric Power System DG System Distributed Generation System Distributed Power Generation Grid-tied Z-source Inverter Harmonics Invertors Low-voltage Ride Through LVRT Capability Main AC Grid Fault Normal Grid Condition Mode Operation-under-grid Fault Operation-under-normal Grid Condition Optimal Control PEI Units Photovoltaic Application Photovoltaic Power System Power And Energy Control Power Conditioning Unit Power Electronics Interface Unit Power Generation Control Power Generation Fault Power Grid Power Quality Issues Power Supply Quality Power System Control Predictive Control PV Application PV Panels PV System Reactive Power Compensation Reactive Power Control Reactive Power Injection Renewable Energy Source Robust Control Robust Model Predictive-based Control Strategy Solar Cell And Array Solar Cell Array Solar Power Stations Stability in Control Theory ZSI
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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