Fast unscented transformation-based transient stability margin estimation incorporating uncertainty of wind generation

Hua, Ke Qian, Mishra, Yateendra, & Ledwich, Gerard F. (2015) Fast unscented transformation-based transient stability margin estimation incorporating uncertainty of wind generation. IEEE Transactions on Sustainable Energy, 6(4), pp. 1254-1262.

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Intermittent generation from wind farms leads to fluctuating power system operating conditions pushing the stability margin to its limits. The traditional way of determining the worst case generation dispatch for a system with several semi-scheduled wind generators yields a conservative solution. This paper proposes a fast estimation of the transient stability margin (TSM) incorporating the uncertainty of wind generation. First, the Kalman filter (KF) is used to provide linear estimation of system angle and then unscented transformation (UT) is used to estimate the distribution of the TSM. The proposed method is compared with the traditional Monte Carlo (MC) method and the effectiveness of the proposed approach is verified using Single Machine Infinite Bus (SMIB) and IEEE 14 generator Australian dynamic system. This method will aid grid operators to perform fast online calculations to estimate TSM distribution of a power system with high levels of intermittent wind generation.

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ID Code: 84462
Item Type: Journal Article
Refereed: Yes
Keywords: Uncertainty in Wind Energy, Power System Stability Margin, Unscented Transformation
DOI: 10.1109/TSTE.2015.2429131
ISSN: 1949-3029
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Renewable Power and Energy Systems Engineering (excl. Solar Cells) (090608)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2015 IEEE
Copyright Statement: 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.
Deposited On: 26 May 2015 04:20
Last Modified: 12 Sep 2016 00:42

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