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

Liu, Zhipeng, Wen, Fushuan, & Ledwich, Gerard (2013) An optimal under-frequency load shedding strategy considering distributed generators and load static characteristics. International Transactions on Electrical Energy Systems, 24(1), pp. 75-90.

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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.

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ID Code: 57757
Item Type: Journal Article
Refereed: Yes
Keywords: Distributed generators, Load shedding, Under-frequency load shedding
DOI: 10.1002/etep.1720
ISSN: 2050-7038
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Power and Energy Systems Engineering (excl. Renewable Power) (090607)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright © 2013 John Wiley & Sons, Ltd.
Deposited On: 05 Mar 2013 00:33
Last Modified: 30 Jul 2014 07:16

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