Research on Rehearsal Model of Complex System based on Petri Nets

2011 ◽  
Author(s):  
Feng Ye ◽  
Guo-xing Lan ◽  
Ye-quan Cai ◽  
Ying-chao Zhang
Keyword(s):  
Complex System ◽  
Petri Nets

Availability modeling and estimation of Fluid Catalytic Cracking Unit using generalized Stochastic Petri Nets

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Thangamani Gurunathan
Keyword(s):  
Complex System ◽  
Petri Nets ◽  
Catalytic Cracking ◽  
Operating Conditions ◽  
Fluid Catalytic Cracking ◽  
Stochastic Petri Nets ◽  
Common Cause ◽  
Content Type ◽  
Common Cause Failures ◽  
Generalized Stochastic Petri Nets

PurposeThe purpose of this paper to present a practical and systematic approach to estimate the availability of a process plant using generalized stochastic Petri nets (GSPNs). The actual live problem at a fluid catalytic cracking unit (FCCU) of a refinery is used to demonstrate this approach.Design/methodology/approachA majority of models used for estimation of availability of a complex system are based on the assumptions that the failure of the system is associated with only a few states, and the system does not face different operating conditions, repair actions and common-cause failures. In reality, this is often not the case. Therefore, it is necessary to construct more sophisticated models without such assumptions. In this paper, an attempt has been made to model interaction of component failures, partial failures of components and common-cause failures.FindingsThe superiority of this approach over other modeling approaches such as fault tree and Markov analysis is demonstrated. The proposed GSPN is a promising tool that can be conveniently used to model and analyze any complex systems.Practical implicationsGSPN was used to model the reactor-regenerator section of FCCU, which is quite a large system, which shows the strength of modeling capability. The use of Petri nets (PNs) for modeling complex systems for the purpose of availability assessment is demonstrated in this paper. Sensitivity analysis was also carried out for various subsystem/components.Originality/valueNo similar work has been conducted for FCCU using GSPN as per literature incorporating different operating conditions and common-cause failures. The understanding and usage of PNs require a steep learning curve for the practitioners, and this paper provides an approach to estimate availability measures for the complex system.

scholarly journals State model degree reduction of a multistate complex system structured by a Coloured Petri Nets (CPN)

2012 ◽  
Vol 45 (31) ◽  
pp. 103-108 ◽  
Author(s):  
WANG Zhouhang ◽  
ATLI Maen ◽  
ADJALLAH H Kondo
Keyword(s):  
Complex System ◽  
Petri Nets ◽  
State Model ◽  
Coloured Petri Nets ◽  
Degree Reduction

The Modeling Method and Analysis of Online Top-Up System Based on Open Petri Net

2014 ◽  
Vol 571-572 ◽  
pp. 453-456
Author(s):  
Xiao Mao Li ◽  
Xian Wen Fang
Keyword(s):  
Complex System ◽  
Petri Nets ◽  
Petri Net ◽  
Mathematical Analysis ◽  
Modeling Method ◽  
Network System ◽  
Open Network ◽  
Analysis Methods ◽  
And Behavior

Petri nets have structure and behavior properties, it is convenient to analyze some complex system based on its mathematical analysis methods. Online top-up system is an open network system. The modeling method of this system based on general Petri net has some limitations. A new modeling method based on open Petri net to study online top-up system is proposed, and analyze the open Petri net model by T-invariant. This method laid a foundation for the study of open online top-up system.

scholarly journals Simulation of a complex system configuration on the basis of Petri nets

2018 ◽  
pp. 39-58
Author(s):  
Anna Khanova ◽  
◽  
Anna Muntyanova ◽  
Kristina Averyanova ◽  
◽  
...  
Keyword(s):  
Complex System ◽  
Petri Nets ◽  
System Configuration

scholarly journals Accurate Complex Systems Design: Integrating Serious Games with Petri Nets

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
Kirsten Sinclair ◽  
Daniel Livingstone
Keyword(s):  
Complex System ◽  
Complex Systems ◽  
Petri Nets ◽  
System Design ◽  
Serious Games ◽  
Systems Design ◽  
Serious Game ◽  
Interactive Simulation ◽  
Graphical Modelling ◽  
Complex System Design

Difficulty understanding the large number of interactions involved in complex systems makes their successful engineering a problem. Petri Nets are one graphical modelling technique used to describe and check proposed designs of complex systems thoroughly. While automatic analysis capabilities of Petri Nets are useful, their visual form is less so, particularly for communicating the design they represent. In engineering projects, this can lead to a gap in communications between people with different areas of expertise, negatively impacting achieving accurate designs.In contrast, although capable of representing a variety of real and imaginary objects effectively, behaviour of serious games can only be analysed manually through interactive simulation. This paper examines combining the complementary strengths of Petri Nets and serious games. The novel contribution of this work is a serious game prototype of a complex system design that has been checked thoroughly. Underpinned by Petri Net analysis, the serious game can be used as a high-level interface to communicate and refine the design.Improvement of a complex system design is demonstrated by applying the integration to a proof-of-concept case study.   

scholarly journals Modeling of Industrial and Technological Processes in Complex Systems Based on Neuro-Fuzzy Petri Nets

2021 ◽  
Vol 2096 (1) ◽  
pp. 012173
Author(s):  
A V Bobryakov ◽  
S A Prokopenko ◽  
A E Misnik ◽  
S K Krutalevich
Keyword(s):  
Complex System ◽  
Complex Systems ◽  
Petri Nets ◽  
Technological Process ◽  
Technological Processes ◽  
Specialized Software ◽  
Effective Functioning ◽  
Neuro Fuzzy ◽  
Fuzzy Petri Nets

Abstract For effective functioning within a complex system, industrial and technological processes are supported by appropriate information-analytical processes that ensure the collection and analysis of information, as well as modeling and making control decisions for the industrial and technological process. A variety of neuro-fuzzy Petri nets with temporal fuzzy neurons is proposed. An example of con-structing a model of an industrial and technological process and the corresponding information-analytical processes is considered. The developed specialized software for modeling industrial and technological processes and the implementation of information-analytical processes is considered.

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