NDLI: Novel pair-wise relative energy function for transient stability analysis and real-time emergency control

Content Provider	IET Digital Library
Author	Gou, Jing Liu, Youbo Liu, Junyong Taylor, Gareth A. Alamuti, Mohsen M.
Abstract	In recent years, situation awareness and risk mitigation have become the challenging issues in large-scale power grids. This study presents a novel pair-wise relative energy function for real-time transient stability analysis and emergency control. The proposed energy function is able to accurately identify the clusters of critical and non-critical generators significantly faster when compared with previous methods. Additionally, a new emergency control criterion is proposed in order to stabilise the identified critical generators within a comparatively short interval after fault clearance. The emergency control scheme computes the capacity of the requisite generation curtailment using the pre-calculated relative energy of the equivalent post-fault system. Finally, the relative energy oscillation trajectories that occur in the critical cluster are utilised in order to locate the most appropriate generator to launch the emergency control. When compared with the existing methods, it is evident that the novel approach can be applied practically for power systems transient stability analysis and emergency control. The effectiveness of the proposed method is demonstrated and evaluated using the New England 10 machines 39-bus and 16 machines 68-bus systems.
Starting Page	4565
Ending Page	4575
Page Count	11
ISSN	17518687
Volume Number	11
e-ISSN	17518695
Issue Number	Issue 18, Dec (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/11/18
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2016.1671
Journal	IET Generation, Transmission & Distribution
Publisher	The Institution of Engineering and Technology
Publisher Date	2017-07-10
Access Restriction	Open
Rights License	Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/)
Subject Keyword	Control of Electric Power System Critical Cluster Critical Generator Emergency Control Criterion Emergency Management Equivalent Post-fault System Fault Clearance Generation Curtailment Large-scale Power Grid New England 10 Machine 39-bus System New England 16 Machine 68-bus System Noncritical Generator Pair-wise Relative Energy Function Power System Control Power System Transient Stability Power System Transient Stability Analysis Real-time Emergency Control Real-time Transient Stability Analysis Relative Energy Oscillation Trajectories Risk Management Risk Mitigation Situation Awareness
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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