An Intelligent Autonomous System for Condition-Based Maintenance- Case Study: Control Valves
سال انتشار: 1398
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 266
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شناسه ملی سند علمی:
JR_JIST-7-2_005
تاریخ نمایه سازی: 23 دی 1399
چکیده مقاله:
Maintenance process generally plays a vital role to achieve more benefits to the enterprises. Undoubtedly, this process has
a high value-added in oil and gas industries. Process owner expectations and new technology acquisition have been
changing the mindset of domain experts to the new maintenance approaches and different newer methods such as
condition-based maintenance models for improving the reliability and decreasing the cost of maintenance. Because of the
high dynamic behavior of the gas and the instability of the input parameters, the need to apply a model with self-healing
behavior is a serious demand in the gas industry. However, to the best of our knowledge, despite its importance, there is
not any comprehensive study in the literature. In this paper, we present a new neuro-fuzzy model and a self-management
control loop using real world data to meet the mentioned targets for a specified control valve in a gas refinery. ANFIS
model is employed for the reasoning process which has six inputs (Inlet/outlet Pressures, temperature, flow rate, controller
output and valve rod displacement), and one output that is a type of failure of the control valve and the most failures are
considered based on domain expert knowledge. A suitable control loop is used to unceasingly monitor, analyze, plan and
finally execute the process of prediction of failures. Due to undertaken improvement, there is a considerable change in
reliability and financial indices. Moreover, the proposed approach is compared with two different methods. The results
show that our proposed model comprehensively improves accuracy by ۲۴%.
کلیدواژه ها:
نویسندگان
Hamidreza Naseri
Department of Computer, Faculty of Engineering, Islamic Azad University, Qom Branch, Qom, Iran
Ali Shahidinejad
Department of Computer, Faculty of Engineering, Islamic Azad University, Qom Branch, Qom, Iran
Mostafa Ghobaei-Arani
Department of Computer, Faculty of Engineering, Islamic Azad University, Qom Branch, Qom, Iran