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Small Signal Stability Analysis of Distribution Networks with Electric Springs

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Title: Small Signal Stability Analysis of Distribution Networks with Electric Springs
Authors: Chakravorty, D
Guo, J
Chaudhuri, B
Hui, SYR
Item Type: Journal Article
Abstract: This paper presents small signal stability analysis of distribution networks with electric springs (ESs) installed at the customer supply points. The focus is on ESs with reactive compensation only. Vector control of ES with reactive compensation is reported for the first time to ensure compatibility with the standard stability models of other components such as the interface inverter of distributed generators (DGs). A linearized state-space model of the distribution network with multiple ESs is developed which is extendible to include inverter-interfaced DGs, energy storage, active loads etc. The impact of distance of an ES from the substation, proximity between adjacent ESs and the R/X ratio of the network on the small signal stability of the system is analyzed and compared against the case with equivalent DG inverters. The collective operation of ESs is validated through simulation study on a standard distribution network.
Issue Date: Mar-2019
Date of Acceptance: 12-Oct-2017
URI: http://hdl.handle.net/10044/1/52424
DOI: https://doi.org/10.1109/TSG.2017.2772224
ISSN: 0885-8950
Publisher: Institute of Electrical and Electronics Engineers
Start Page: 1543
End Page: 1552
Journal / Book Title: IEEE Transactions on Power Systems
Volume: 10
Issue: 2
Copyright Statement: This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/.
Sponsor/Funder: Engineering and Physical Sciences Research Council
Funder's Grant Number: EPSRC
Keywords: Science & Technology
Engineering, Electrical & Electronic
Distributed generation
dynamic model
distribution network
electric spring
small signal stability
state space
vector control
0906 Electrical and Electronic Engineering
0915 Interdisciplinary Engineering
Publication Status: Published
Online Publication Date: 2017-12-15
Appears in Collections:Faculty of Engineering
Electrical and Electronic Engineering