Stochastic versus Fuzzy Models-A Discussion Centered on the Reliability of an Electrical Power Supply System in a Large European Hospital

被引：4

作者：

Pinto, Constancio Antonio ^{[1
,2
]}

Farinha, Jose Torres ^{[1
,3
]}

Raposo, Hugo ^{[1
,3
]}

Galar, Diego ^{[4
]}

机构：

[1] Univ Coimbra, Dept Mech Engn, CEMMPRE, P-3030788 Coimbra, Portugal

[2] Univ Nacl Timor Leste, Dept Mech Engn, Av Cidade Lisboa, Dili, Timor-Leste

[3] Inst Politecn Coimbra ISEC IPC, Inst Super Engn Coimbra, Dept Mech Engn, P-3030199 Coimbra, Portugal

[4] Lulea Univ Technol, Dept Civil Environm & Nat Resources Engn, S-97187 Lulea, Sweden

来源：

ENERGIES | 2022年 / 15卷 / 03期

关键词：

RAMS; fuzzy inference system; stochastic time Petri nets; Markov chains; dynamic modeling; INFERENCE SYSTEM; PETRI NETS; PREVENTIVE MAINTENANCE; PREDICTION; FRAMEWORK;

D O I：

10.3390/en15031024

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper discusses the Reliability, Availability, Maintainability, and Safety (RAMS) of an electrical power supply system in a large European hospital. The primary approach is based on fuzzy logic and Petri nets, using the CPNTools software to simulate and determine the most important modules of the system according to the Automatic Transfer Switch. Fuzzy Inference System is used to analyze and assess the reliability value. The stochastic versus fuzzy approach is also used to evaluate the reliability contribution of each system module. This case study aims to identify and analyze possible system failures and propose new solutions to improve the system reliability of the power supply system. The dynamic modeling is based on block diagrams and Petri nets and is evaluated via Markov chains, including a stochastic approach linked to the previous analysis. This holistic approach adds value to this type of research question. A new electrical power supply system design is proposed to increase the system's reliability based on the results achieved.

引用

页数：21