Comparison of current-limiting strategies during fault ride-through of inverters to prevent latch-up and wind-up
File(s)Fault Limiting Paper Sprial.pdf (861.77 KB)
Accepted version
Author(s)
Bottrell, Nathaniel
Green, Timothy C
Type
Journal Article
Abstract
Transient stability of a power network requires that generators remain synchronized and return to normal power export once a fault is cleared. For inverter-interfaced generators, one must ensure that current and voltage limiters do not latch-up and that controller integrators do not wind-up. A comparison of current-limiting strategies during fault ride-through of inverters to prevent latch-up and wind-up is presented. A voltage-controlled inverter with an inner current controller is used in this paper. Instantaneous limiting (saturation) and latched limiting with a variety of reset strategies are tested to check for correct operation when a fault is applied and cleared. All the cases were tested on an experimental system using 10-kVA inverters and low-impedance three-phase faults. The experimental results showing the current and voltage waveforms of the inverter are presented to test whether each strategy correctly transitioned from current limiting to normal operation once the fault was cleared and to examine the extent to which controller wind-up was a problem. Conclusions are drawn as to which current-limiting strategies provide good performance in ride-through and recovery from faults.
Date Issued
2014-07-01
Date Acceptance
2013-08-01
Citation
IEEE Transactions on Power Electronics, 2014, 29 (7), pp.3786-3797
ISSN
0885-8993
Publisher
Institute of Electrical and Electronics Engineers
Start Page
3786
End Page
3797
Journal / Book Title
IEEE Transactions on Power Electronics
Volume
29
Issue
7
Copyright Statement
© 2013 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:000332013100050&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Engineering, Electrical & Electronic
Engineering
Current control
current limiters
fault current limiters
fault currents
inverters
transient response
Publication Status
Published