Distributed voltage control with electric springs: comparison with STATCOM
File(s)IEEE-TSG-ESvsSTATCOM-Final.pdf (1.3 MB)
Accepted version
Author(s)
Type
Journal Article
Abstract
The concept of electric spring (ES) has been proposed recently as an effective means of distributed voltage control. The idea is to regulate the voltage across the critical (C) loads while allowing the noncritical (NC) impedance-type loads (e.g., water heaters) to vary their power consumption and thus contribute to demand-side response. In this paper, a comparison is made between distributed voltage control using ES against the traditional single point control with STATic COMpensator (STATCOM). For a given range of supply voltage variation, the total reactive capacity required for each option to produce the desired voltage regulation at the point of connection is compared. A simple case study with a single ES and STATCOM is presented first to show that the ES and STATCOM require comparable reactive power to achieve similar voltage regulation. Comparison between a STATCOM and ES is further substantiated through similar case studies on the IEEE 13-bus test feeder system and also on a part of the distribution network in Sha Lo Wan Bay, Hong Kong. In both cases, it turns out that a group of ESs achieves better total voltage regulation than STATCOM with less overall reactive power capacity. Dependence of the ES capability on proportion of critical and NC load is also shown.
Date Issued
2015-01-01
Date Acceptance
2014-07-14
Citation
IEEE Transactions on Smart Grid, 2015, 6 (1), pp.209-219
ISSN
1949-3053
Publisher
Institute of Electrical and Electronics Engineers
Start Page
209
End Page
219
Journal / Book Title
IEEE Transactions on Smart Grid
Volume
6
Issue
1
Copyright Statement
© 2014 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.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000346731400021&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Engineering, Electrical & Electronic
Engineering
Demand response
electric springs (ES)
STATic COMpensator (STATCOM)
voltage control
voltage regulation
Publication Status
Published
Date Publish Online
2014-08-28