Wind Turbine System: An Industrial Case Study in Formal Modeling and Verification

Fault Tree Analysis (FTA) is one of the most developed techniques in reliability studies; however static analysis is not able to encompass the dynamic behavior of complex systems. To overcome this problem, Dynamic Fault Tree (DFT) analysis is suggested in recent researches. The main motivation of this study is a comparative study on differences between Static Fault Tree (SFT) and DFT models of a typical mechanical system (case study of a wind turbine). Also, this paper is aimed to interpretation of the results and sufficiency analysis of SFT to model this system. This study, first presents a SFT analysis for a wind turbine system. Then, DFT is developed for the system. Monte Carlo simulation based method is applied for its analysis. The comparison showed that the DFT method presents more useful and realistic model of a wind turbine system. The proposed method improved the analysis through modification of dynamic gates.

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Formal modeling and analysis of resource management for cloud architectures: an industrial case study using Real-Time ABS

Service Oriented Computing and Applications ◽

10.1007/s11761-013-0148-0 ◽

2013 ◽

Vol 8 (4) ◽

pp. 323-339 ◽

Cited By ~ 35

Author(s):

Elvira Albert ◽

Frank S. de Boer ◽

Reiner Hähnle ◽

Einar Broch Johnsen ◽

Rudolf Schlatte ◽

...

Keyword(s):

Resource Management ◽

Real Time ◽

Formal Modeling ◽

Industrial Case Study ◽

Modeling And Analysis

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Feasibility study of wind turbine system integrated with insulated Greenhouse: Case study in Tunisia

Sustainable Energy Technologies and Assessments ◽

10.1016/j.seta.2021.101333 ◽

2021 ◽

Vol 47 ◽

pp. 101333

Author(s):

Rim Ben Ali ◽

Salwa Bouadila ◽

Müslüm Arıcı ◽

Abdelkader Mami

Keyword(s):

Wind Turbine ◽

Feasibility Study ◽

Wind Turbine System

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Formal Modeling of Resource Management for Cloud Architectures: An Industrial Case Study

Service-Oriented and Cloud Computing - Lecture Notes in Computer Science ◽

10.1007/978-3-642-33427-6_7 ◽

2012 ◽

pp. 91-106 ◽

Cited By ~ 9

Author(s):

Frank S. de Boer ◽

Reiner Hähnle ◽

Einar Broch Johnsen ◽

Rudolf Schlatte ◽

Peter Y. H. Wong

Keyword(s):

Resource Management ◽

Formal Modeling ◽

Industrial Case Study

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Wind Resources Assessment and Development of Grid Connected Wind Farm—A Case Study

Sustainability ◽

10.3390/su12218903 ◽

2020 ◽

Vol 12 (21) ◽

pp. 8903

Author(s):

Ming-Hong Chen ◽

Yan-Ting Lin ◽

Pao-Hsiung Chiu ◽

Ching-Chang Cho ◽

Huei Chu Weng

Keyword(s):

Wind Turbine ◽

Wind Farm ◽

Fine Tuning ◽

Electricity Production ◽

Weather Data ◽

Model Parameters ◽

Related Data ◽

Wind Turbine System ◽

The Difference

In the present study, the case study of micro-siting for the campus of the Institute of Nuclear Energy Research (INER) is conducted. Results from the effect of weather data suggest that for the wind turbine system higher than 20 m, the effect of nearby building and wake on electricity production would be less important. The effect of different weather data on the generated annual electricity production (AEP) is consistent for the wind turbine higher than 20 m. The difference between the calculated and real AEP of INER-150 kW wind turbine is only 1.1%, which is much better than some previous studies. The good agreement is mainly due to the higher height of the INER-150 kW (50 m), more stable coming wind and smaller impact of building on the performance of power production. Considering the proactivity on the installation for the site in INER campus, the finalized decision on the selection of wind turbine is 1 kW system. The power generation-related data are collected and processed for the fine tuning of model parameters in the future.

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Formal Modeling and Analysis of an Audio/Video Protocol: An Industrial Case Study Using UPPAAL

BRICS Report Series ◽

10.7146/brics.v4i31.18957 ◽

1997 ◽

Vol 4 (31) ◽

Cited By ~ 15

Author(s):

Klaus Havelund ◽

Arne Skou ◽

Kim G. Larsen ◽

Kristian Lund

Keyword(s):

Software Development ◽

Real Time ◽

Real Life ◽

Automatic Verification ◽

Formal Modeling ◽

Industrial Case Study ◽

Modeling And Analysis ◽

Audio Video ◽

Assembler Code

A formal and automatic verification of a real-life protocol is presented. The protocol, about 2800 lines of assembler code, has been used in products from the audio/video company Bang & Olufsen throughout more than a decade, and its purpose<br />is to control the transmission of messages between audio/video components over a single bus. Such communications may collide, and one essential purpose of the protocol is to detect such collisions. The functioning is highly dependent on<br />real-time considerations. Though the protocol was known to be faulty in that messages were lost occasionally, the protocol was too complicated in order for Bang & Olufsen to locate the bug using normal testing. However, using the real-time verification<br />tool UPPAAL, an error trace was automatically generated, which caused the detection of “the error” in the implementation. The error was corrected and the correction was automatically proven correct, again using UPPAAL. A future, and more automated, version of the protocol, where this error is fatal, will incorporate the correction. Hence, this work is an elegant demonstration of how model checking has had an impact on practical software development. The effort of modeling this protocol has in addition generated a number of suggestions for enriching the UPPAAL language. Hence, it’s also an excellent example of the reverse impact.

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