NDLI: Optimising power system frequency stability using virtual inertia from inverter-based renewable energy generation

Content Provider	IET Digital Library
Author	Farmer, Warren J. Rix, Arnold J.
Abstract	The objective of this study is to optimise the use of virtual inertia given a virtual inertia budget and a network topology. Following a brief investigation into inertia distribution, it was observed that distributed inertia is more effective than centralised inertia for a large and sparse power system network. A subsection of the South African transmission network, the Western Transmission network, is expected to host large-scale inverter-based generation. The total power system inertia is in decline due to the large-scale integration of inverter-based renewable energy generation. In the literature, mitigation methods such as virtual inertia and ‘noise-cancelling’ network topology design has been proposed to improve frequency stability. In this study, the Western Transmission network is modelled as a network of coupled oscillators. A state-space model for the power system network is developed with virtual inertia as a feedback control loop. The H 2 -norm is used to design optimal feedback control through virtual inertia allocation/distribution, to increase power system frequency stability. The results show that the optimal distribution significantly improves system frequency stability by decreasing the rate of change of frequency and delaying the time to reach similar frequency nadir values.
Starting Page	2820
Ending Page	2829
Page Count	10
ISSN	17521416
Volume Number	14
e-ISSN	17521424
Issue Number	Issue 15, Nov (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/14/15
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2020.0042
Journal	IET Renewable Power Generation
Publisher Date	2020-06-19
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Centralised Inertia Control of Electric Power System Control System Analysis Control System Synthesis Distributed Inertia Distributed Power Generation Feedback Frequency Stability Inertia Distribution Inverter-based Renewable Energy Generation Invertors Large Power System Network Large-scale Inverter-based Generation Network Topology Noise-cancelling Network Topology Design Optimal Control Optimisation Optimisation Technique Power Generation Control Power System Control Power System Frequency Stability Power System Stability Renewable Energy Source South African Transmission Network Sparse Power System Network Synthesis Method Total Power System Inertia Virtual Inertia Budget Western Transmission Network
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
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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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