Enhancing resilience of microgrids with electric springs
File(s)
Accepted version
Author(s)
Liang, L
Hou, Y
Hill, D
Hui, SYR
Type
Journal Article
Abstract
Extreme natural events have caused severe power system blackouts in recent years. It is important for power systems to survive after such events and recover the power supply, especially for critical loads (CLs), as soon as possible. In this paper, a control strategy is proposed for electric springs (ESs) to enhance resilience of microgrids with fluctuating renewable resources. First, the feasible operating region of the ES and the power-voltage curve of the bus connected with the ES are derived analytically. Second, according to the derived feasible operating region, a novel control strategy of ES is proposed to regulate the frequency and voltage of microgrids with and without a communication system. The voltages on CLs are considered as a critical constraint for enhancing resilience during extreme natural events. Finally, the method to enhance resilience of microgrids with ES under both the frequency support mode and the voltage support mode are studied. Case studies demonstrate that ESs can enhance the resilience of microgrids with the proposed strategy with and without a communication system after extreme natural events.
Date Issued
2016-09-14
Date Acceptance
2016-09-01
Citation
IEEE Transactions on Smart Grid, 2016
ISSN
1949-3053
Publisher
Institute of Electrical and Electronics Engineers
Journal / Book Title
IEEE Transactions on Smart Grid
Copyright Statement
© 2016 IEEE. 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.
Subjects
0906 Electrical And Electronic Engineering
0915 Interdisciplinary Engineering
Publication Status
Published