NDLI: Real-time approach for oscillatory stability assessment in large-scale power systems based on MRMR classifier

Content Provider	IET Digital Library
Author	Li, Xin Zheng, Zhiyi Ma, Zhicheng Guo, Panfeng Shao, Kaixuan Quan, Siping
Abstract	An integrated approach for real-time oscillatory stability assessment (OSA) based on mutual information theory is proposed in this study. An advanced maximum-relevance minimum-redundancy (MRMR) ensemble scheme is designed to explore the internal relations between operation variables and the oscillatory stability margin (OSM). Multiple MRMR procedures are generated in parallel to select multiple different feature subsets, in which each feature presents a relevant and complementary description of OSM. The functional expression of the relationships is obtained by curve fitting. The 21-bus system and 1648-bus system are implemented to test the performance of the proposed approach. A compared investigation is made with some other data mining methods. The impacts of the number of feature sets, size of feature sets, size of training set, invalid data and computation time are studied. Experimental results reveal that the proposed approach provides faster and more accurate assessment results and is a real-time adaptive approach for OSA.
Starting Page	4431
Ending Page	4442
Page Count	12
ISSN	17518687
Volume Number	13
e-ISSN	17518695
Issue Number	Issue 19, Oct (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/13/19
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.0180
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-08-19
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	1648-bus System 21-bus System Accurate Assessment Result Advanced Maximum-relevance Minimum-redundancy Ensemble Scheme Complementary Description Computation Time Data Handling Technique Data Mining Data Mining Method Feature Extraction Feature Sets Filtering Method in Signal Processing Filtering Theory Functional Expression Information Theory Integrated Approach Internal Relations Knowledge Engineering Technique Large-scale Power System MRMR Classifier Multiple Different Feature Subsets Multiple MRMR Procedures Mutual Information Theory Operation Variables OSA Oscillatory Stability Margin OSM Pattern Classification Power System Control Power System Stability Real-time Adaptive Approach Real-time Oscillatory Stability Assessment Relevant Description Time Approach
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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