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: 15-Dec-2017
Date of Acceptance: 13-Oct-2017
ISSN: 0885-8950
Publisher: Institute of Electrical and Electronics Engineers
Journal / Book Title: IEEE Transactions on Power Systems
Copyright Statement: This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see
Sponsor/Funder: Engineering and Physical Sciences Research Council
Funder's Grant Number: EPSRC
Keywords: 0906 Electrical And Electronic Engineering
0915 Interdisciplinary Engineering
Publication Status: Published online
Appears in Collections:Faculty of Engineering
Electrical and Electronic Engineering

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