Explicit representation of operator control-actions in Multilevel Flow Modeling

Author(s):  
Christopher Reinartz ◽  
Xinxin Zhang ◽  
Denis Kirchhuebel
2018 ◽  
Vol 51 (8) ◽  
pp. 225-232 ◽  
Author(s):  
Emil Krabbe Nielsen ◽  
Stefan Jespersen ◽  
Xinxin Zhang ◽  
Ole Ravn ◽  
Morten Lind

Author(s):  
G Gola ◽  
M Lind ◽  
H Thunem ◽  
A Thunem ◽  
E Wingstedt ◽  
...  

2003 ◽  
Vol 36 (20) ◽  
pp. 103-108
Author(s):  
Germano Lambert-Torres ◽  
Alexandre Rasi Aoki ◽  
Luiz Eduardo Borges da Silva

2019 ◽  
Vol 52 (11) ◽  
pp. 31-36
Author(s):  
Denis Kirchhübel ◽  
Morten Lind ◽  
Ole Ravn

Author(s):  
Tulis Jojok Suryono ◽  
Akio Gofuku

Computer-based emergency operating procedures offer some benefits compared with the paper-based EOP. However, most of them do not fully provide clear and necessary information related to the procedure steps, such as future plant behavior and the affected components after taking an action of each step because of the limited space available on the virtual display unit. This paper investigates a technique to derive and indicate such kind of information using a Multilevel Flow Modeling model of simplified EOP of steam generator tube rupture accident of a pressurized water reactor plant. In this case, the MFM model is built based on operator’s action on each procedure step. Then, by using the influence propagation rules for function primitives of MFM model, the influenced functions of plant components necessary for confirming the procedure step can be gathered. This information will help operators to understand and take the actions in order to achieve the objective of each procedure step.


Author(s):  
Olga Gerget ◽  
Nataliia Markova

The article discusses the concept of choosing the sequence of control actions in order to minimize the possibility of the system state transition to an adverse one. For this purpose, the bionic model based on the synthesis of information approach, neural networks and a genetic algorithm is developed. The functionality of each of the model elements and their interaction are presented in this paper. Special attention is paid to neuroevolutionary interaction. At the same time, information about control actions is encapsulated in the gene, which allowed increasing the functionality of the algorithm due to multidimensional data representation. The article describes the principle of data representation in bionic models, which differs from the existing ones by the possibility of explicit or implicit representation of the control action in the chromosome. In the explicit representation one neural network is formed, it describes the effect of any of the control actions involved in the training. An implicit view creates a set of models, each of which describes the effect of only one control action. A brief description of the software implemented in the Python programming language is provided.


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