NDLI: Impact of resources distribution on high-frequency behaviour of photovoltaic systems

Content Provider	IET Digital Library
Author	Ghaderi, Mohammad Hassan Rashidirad, Nasim Hamzeh, Mohsen
Abstract	In this study, the distribution effect of grid-connected inverters in photovoltaic (PV) plants is analysed. In fact, the interaction dynamics between different arrangements of distributed PV inverters and the grid are thoroughly compared. To this aim, the total power of all arrangements of distributed inverters is considered constant, which is called fixed-power arrangements in this work. Accordingly, this study first develops the model of grid-connected current-controlled inverters (CCIs). Then, by applying the impedance-based criterion, the effect of CCIs distribution on their stability is evaluated. Despite the fact that each CCI model is obtained based on the same stability margins, different distributed arrangements of CCIs have different interaction dynamics with the grid. From the frequency-domain analysis, it is found that the distribution effect of CCIs can greatly affect the high-frequency (HF) behaviour of their output admittances, and consequently improves their interaction dynamics; hence, one of the factors which can also play an important role in HF behaviour is distribution effect of CCIs in a PV plant. The simulation studies of several distributed arrangements of CCIs as well as a centralised CCI confirm the validity of the performed analysis.
Starting Page	2573
Ending Page	2580
Page Count	8
ISSN	17521416
Volume Number	14
e-ISSN	17521424
Issue Number	Issue 14, Oct (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/14/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2019.1472
Journal	IET Renewable Power Generation
Publisher Date	2020-06-19
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Control of Electric Power System Current Control Distributed Power Generation Distributed PV Inverters Distribution Effect Electric Current Control Fixed-power Arrangements Frequency Domain Analysis Grid-connected CCI Grid-connected Current-controlled Inverter Grid-connected Inverter High-frequency Behaviour Impedance-based Criterion Invertors Mathematical Analysis Photovoltaic Plant Photovoltaic Power System Photovoltaic System Power Grid Power System Control ReSource Distribution Impact Solar Power Stations
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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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
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