A Novel Dynamic Weight Allocation Method for Assessing the Health Status of Remote Terminal Unit in Distribution Automation System Based on AHM and GRA

Author(s): Xinhao Bian, Jinrui Tang*, Guoyan Chen, Wenxiong Mo, Hongbin Wang

Journal Name: Recent Advances in Electrical & Electronic Engineering
Formerly Recent Patents on Electrical & Electronic Engineering

Volume 13 , Issue 6 , 2020


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Graphical Abstract:


Abstract:

Background: The Remote Terminal Units (RTUs) in the Distribution Automation System (DAS) are widely used in the field in recent years. It is lack of sample data in different operation status that makes the RTU maintenance improper. The weight allocation for the monitoring indicators in the health status evaluation needs to be identified efficiently and properly.

Methods: A systematic health status assessment indicator system is constructed firstly. Then, a hybrid indicator weight allocation algorithm based on the Attribute Hierarchy Model (AHM) and grey relational degree (GRA) is proposed to identify the elementary item in the weight allocation under small sample condition. The final indicator weight would be dynamically adjusted according to the equilibrium coefficient, which is determined by the indicator condition parameter.

Results: The simulation results show that the weight allocation can be effectively and reasonably adjusted according to the indicator value even under small sample condition.

Conclusion: The expert experience and objective data laws are combined and used in our proposed dynamic weight allocation method. It can be used to assess the health status of RTU in the electrical power distribution network.

Keywords: Dynamic weight allocation, attribute hierarchy-based model, grey relational degree, health status assessment, remote terminal unit, distribution automation system.

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Article Details

VOLUME: 13
ISSUE: 6
Year: 2020
Published on: 04 November, 2020
Page: [856 - 863]
Pages: 8
DOI: 10.2174/2352096513999200721005731
Price: $25

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