Markovic, U, Chu, Z, Aristidou, P orcid.org/0000-0003-4429-0225 et al. (1 more author) (2018) Fast Frequency Control Scheme through Adaptive Virtual Inertia Emulation. In: Proceedings of the 2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia). 2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia), 22-25 May 2018, Singapore, Singapore. IEEE , pp. 787-792. ISBN 978-1-5386-4291-7
Abstract
This paper presents a novel virtual inertia controller for converters in power systems with high share of renewable resources. By combining the analytical study of system dynamics and a Linear-Quadratic Regulator (LQR)-based optimization technique, the optimal state feedback gain is determined, adapting the emulated inertia constant according to the frequency disturbance in the system. The optimality is achieved through trade-off between the critical frequency limits and the required control effort, i.e. utilization of the internal energy storage. The proposed controller is integrated into a state-of-the-art converter control scheme and verified through EMT simulations. The results show a significant improvement in the frequency response compared to an open-loop system, while also preserving drastically more DC-side energy than a non-adaptive controller.
Metadata
Item Type: | Proceedings Paper |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2018 IEEE. This is an author produced version of a paper published in Proceedings of the 2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia). Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | linear-quadratic regulator (LQR); virtual inertia emulation; voltage source converter; adaptive controller |
Dates: |
|
Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Institute of Communication & Power Networks (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 05 Mar 2018 14:20 |
Last Modified: | 17 Jan 2019 15:27 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/ISGT-Asia.2018.8467920 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:128143 |