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An optimal under-frequency load shedding strategy considering distributed generators and load static characteristics.

Authors :
Liu, Zhipeng
Wen, Fushuan
Ledwich, Gerard
Source :
International Transactions on Electrical Energy Systems; Jan2014, Vol. 24 Issue 1, p75-90, 16p
Publication Year :
2014

Abstract

SUMMARY The well-established under-frequency load shedding (UFLS) is deemed to be the last of effective remedial measures against a severe frequency decline of a power system. With the ever-increasing size of power systems and the extensive penetration of distributed generators (DGs) in power systems, the problem of developing an optimal UFLS strategy is facing some new challenges. Given this background, an optimal UFLS strategy for a distribution system with DGs and load static characteristics taken into consideration is developed. Based on the frequency and the rate of change of frequency, the presented strategy consists of several basic rounds and a special round. In the basic round, the frequency emergency can be alleviated by quickly shedding some loads. In the special round, the frequency security can be maintained, and the operating parameters of the distribution system can be optimized by adjusting the output powers of DGs and some loads. The modified IEEE 37-node test feeder is employed to demonstrate the essential features of the developed optimal UFLS strategy in the MATLAB/SIMULINK environment. Copyright © 2013 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
20507038
Volume :
24
Issue :
1
Database :
Complementary Index
Journal :
International Transactions on Electrical Energy Systems
Publication Type :
Academic Journal
Accession number :
93630039
Full Text :
https://doi.org/10.1002/etep.1720