Automatic under-frequency load shedding in New Zealand power system — A systematic review

Author

Mollah, Kaium Uz Zaman ; Bahadornejad, Momen ; Nair, Nirmal K-C

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Auckland, Auckland, New Zealand

fYear

2011

fDate

25-28 Sept. 2011

Firstpage

1

Lastpage

7

Abstract

Automatic Under-Frequency Load Shedding (AUFLS) is the last resort for New Zealand (NZ) power system to prevent widespread blackout following severe system contingency. This paper provides a systematic review of existing AUFLS in New Zealand power system and assesses future potentials that can be enabled through emerging Smart Grid technology investments in distribution networks. A new AUFLS scheme is proposed that can be implemented for effective and improved AUFLS. The proposed scheme is analyzed through realistic simulations on a 5 bus network and IEEE-39 bus test system. This is compared with existing New Zealand AUFLS scheme applied to these test systems.

Keywords

distribution networks; load shedding; smart power grids; 5 bus network; AUFLS; IEEE-39 bus test system; New Zealand; automatic under-frequency load shedding; blackout; distribution networks; power system; smart grid technology; Equations; Generators; HVDC transmission; Load modeling; Mathematical model; Power system stability; Relays; Load shedding; Smart Grids; black out; power system stability; under-frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Universities Power Engineering Conference (AUPEC), 2011 21st Australasian

Conference_Location

Brisbane, QLD

Print_ISBN

978-1-4577-1793-2

Type

conf

Filename

6102531