Advanced Maintenance Strategy for Power Plants &amp;amp;#8212;Introducing Intelligent Maintenance System

Chu, Jian; Mao, Weijie; Fu, Yuxi

doi:10.1109/wcica.2006.1713411

Cited by 4 publications

(1 citation statement)

References 25 publications

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“…These challenges are becoming more severe as the variety and complexity of CBM models increase (Apeland and Aven, 2000;Alaswad and Xiang, 2017). Existing optimization systems only focus on one or two aspects of maintenance, such as security and economic loss (Gu et al, 2009) or making decisions based on fault prognosis (Wang et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Multiple aspects maintenance ontology-based intelligent maintenance optimization framework for safety-critical systems

Diao,

Zhao,

Vaddi

et al. 2024

AIEDAM

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Maintenance optimization is a process for improving the efficiency of maintenance strategies and activities, considering various aspects of the target system and components, such as the probabilities of system failures and the cost of repair and replacement of a failed component. The improvement of maintenance optimization algorithms generally requires information from various data sources. For example, it may require the system risk information derived from risk analysis tools or the residual lifetime of a component from fault prognosis tools. The requirements of data acquisition (DAQ) and aggregation pose new challenges for maintenance management systems (MMSs) that implement and use these maintenance optimization algorithms. This paper proposes a multiple aspects maintenance ontology-based framework to facilitate DAQ from MMSs, online monitoring systems, fault detection and discrimination tools, risk assessment tools, decision-making tools, and component identification tools, and accelerate the implementation and verification of contemporary maintenance optimization models and algorithms. The proposed framework consists of a multi-aspect maintenance ontology with critical information for maintenance optimization and application interfaces for collecting information from various data sources, such as fault prognosis tools, online monitoring tools, risk assessment tools, and decision-making algorithms. In addition, this paper proposes a heuristic method for integrating concepts and properties from other existing ontologies into the proposed framework when the existing ontology is not fully compatible with the ontology under construction. Finally, the paper verifies the proposed ontology framework using a feedwater system designed for nuclear power plants with valves and filters as the components under maintenance.

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