A new microprocessor based islanding protection algorithm for dispersed storage and generation units

Author

Redfern, M.A. ; Barrett, J.I. ; Usta, Ö

Author_Institution

Bath Univ., UK

Volume

10

Issue

3

fYear

1995

fDate

7/1/1995 12:00:00 AM

Firstpage

1249

Lastpage

1254

Abstract

The ability to detect when dispersed storage and generation (DSG) units become islanded from the main source of generation enables the DSG to be quickly disconnected from the utility network and for that network to be rebuilt in a safe and orderly manner. The new islanding protection algorithm described in the paper has been developed to be part of an integrated protection package to cover all the protection requirements of a DSG. A selection of the results obtained from extensive laboratory and field tests are presented and show that the algorithm reliably trips for islanding conditions within 120 milliseconds, trips for load fluctuations should the DSG be operating independent of the main source of supply and restrains for single phase faults close to the DSG

Keywords

electric power generation; microcomputer applications; power engineering computing; power system protection; dispersed storage and generation units; integrated protection package; islanding protection algorithm; load fluctuations; microprocessor; single phase faults; Circuit breakers; Distributed power generation; Guidelines; Microprocessors; Power generation; Power supplies; Power system economics; Power system protection; Power system reliability; Switches;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.400903

Filename

400903