System safety analysis of large wind turbines

Jin, Xin; Ju, Wenbin; Zhang, Zhaolong; Guo, Lianxin; Xian-gang, Yang

doi:10.1016/j.rser.2015.12.016

Cited by 24 publications

(7 citation statements)

References 77 publications

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“…The dynamic behaviour of interconnected floating bodies is studied through the multi-body dynamic analysis concept. This approach examines the dynamic behaviour of the interconnected bodies by using the equilibrium of applied forces and the change in the momentum ( Jin et al, 2016 ). The dynamic analysis of the intended integrated system is a multi-body, multi-scale problem composed of several different components from a very small net twine (in the order of millimetre in diameter) to very large components such as the foundation of a wind turbine (in the order of meters in size).…”

Section: Reliability Analysis Of the Integrated Systemmentioning

confidence: 99%

Reliability of multi-purpose offshore-facilities: Present status and future direction in Australia

Aryai

Abdussamie

Salehi

et al. 2021

Process Safety and Environmental Protection

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Sustainable use of the ocean for food and energy production is an emerging area of research in different countries around the world. This goal is pursued by the Australian aquaculture, offshore engineering and renewable energy industries, research organisations and the government through the “Blue Economy Cooperative Research Centre”. To address the challenges of offshore food and energy production, leveraging the benefits of co-location, vertical integration, infrastructure and shared services, will be enabled through the development of novel Multi-Purpose Offshore-Platforms (MPOP). The structural integrity of the designed systems when being deployed in the harsh offshore environment is one of the main challenges in developing the MPOPs. Employing structural reliability analysis methods for assessing the structural safety of the novel aquaculture-MPOPs comes with different limitations. This review aims at shedding light on these limitations and discusses the current status and future directions for structural reliability analysis of a novel aquaculture-MPOP considering Australia’s unique environment. To achieve this aim, challenges which exist at different stages of reliability assessment, from data collection and uncertainty quantification to load and structural modelling and reliability analysis implementation, are discussed. Furthermore, several solutions to these challenges are proposed based on the existing knowledge in other sectors, and particularly from the offshore oil and gas industry. Based on the identified gaps in the review process, potential areas for future research are introduced to enable a safer and more reliable operation of the MPOPs.

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Section: Reliability Analysis Of the Integrated Systemmentioning

confidence: 99%

Reliability of multi-purpose offshore-facilities: Present status and future direction in Australia

Aryai

Abdussamie

Salehi

et al. 2021

Process Safety and Environmental Protection

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show abstract

“…Reliability analysis aims at quantifying the probability of structural failure and seeking suitable methods to promote the safe operation of the OWT system and enhance reliability management. Safety evaluation is considered as an effective process to identify and analyze failure risks, usually based on measured data, and determine safety strategies and precautions for offshore wind farms [179]. CMS and SCADA systems are common tools to achieve the structural reliability analysis based on the measured data from operational wind turbines [180,181].…”

Section: Reliability Analysis and Safety Evaluationmentioning

confidence: 99%

Health Monitoring and Safety Evaluation of the Offshore Wind Turbine Structure: A Review and Discussion of Future Development

et al. 2019

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With the depletion of fossil energy, offshore wind power has become an irreplaceable energy source for most countries in the world. In recent years, offshore wind power generation has presented the gradual development trend of larger capacity, taller towers, and longer blades. The more flexible towers and blades have led to the structural operational safety of the offshore wind turbine (OWT) receiving increasing worldwide attention. From this perspective, health monitoring systems and operational safety evaluation techniques of the offshore wind turbine structure, including the monitoring system category, data acquisition and transmission, feature information extraction and identification, safety evaluation and reliability analysis, and the intelligent operation and maintenance, were systematically investigated and summarized in this paper. Furthermore, a review of the current status, advantages, disadvantages, and the future development trend of existing systems and techniques was also carried out. Particularly, the offshore wind power industry will continue to develop into deep ocean areas in the next 30 years in China. Practical and reliable health monitoring systems and safety evaluation techniques are increasingly critical for offshore wind farms. Simultaneously, they have great significance for strengthening operation management, making efficient decisions, and reducing failure risks, and are also the key link in ensuring safe energy compositions and achieving energy development targets in China. The aims of this article are to inform more scholars and experts about the status of the health monitoring and safety evaluation of the offshore wind turbine structure, and to contribute toward improving the efficiency of the corresponding systems and techniques.

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“…A wind speed model that considers turbulence grades of A, B and C is constructed for a ten minutes period [17]. An improved Von Karman wind speed power spectrum model [22] is used to build the turbulence wind which takes air flow field into consideration for a thickness of the atmospheric boundary layer not exceeding 150 m. Accordingly, the longitudinal component of the auto-power spectral density function is shown in Equation (2). Equation (3) is the expression of the horizontal and vertical component of the auto-power spectral density:…”

Section: Wind Speed Simulationmentioning

confidence: 99%

“…Its availability and reliability attract attention due to the ultimate long downtime if it fails. The difficult accessibility of offshore wind farms further brings challenges to gearbox maintenance which requires an advanced operational and maintenance strategy for WTs [1,2]. Properly scheduled corrective and preventive maintenance both require effective WT fault detection, precise fault diagnosis and accurate prognosis techniques.…”

Section: Introductionmentioning

confidence: 99%

An Approach of Quantifying Gear Fatigue Life for Wind Turbine Gearboxes Using Supervisory Control and Data Acquisition Data

et al. 2017

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Quantifying wind turbine (WT) gearbox fatigue life is a critical problem for preventive maintenance when unsolved. This paper proposes a practical approach that uses ten minutes' average wind speed of Supervisory Control and Data Acquisition (SCADA) data to quantify a WT gearbox's gear fatigue life. Wind turbulence impacts on gearbox fatigue are studied thoroughly. Short-term fatigue assessment for the gearbox is then performed using linear fatigue theory by considering WT responses under external and internal excitation. The results shows that for a three stage gearbox, the sun gear in the first stage and pinions in the 2nd and 3rd stage are the most vulnerable parts. High mean wind speed, especially above the rated range, leads to a high risk of gearbox fatigue damage. Increase of wind turbulence may not increase fatigue damage as long as a WT has an instant response to external excitation. An approach of using SCADA data recorded every ten minutes to quantify gearbox long-term damages is presented. The calculation results show that the approach effectively presents gears' performance degradation by quantifying their fatigue damage. This is critical to improve WT reliability and meaningful for WT gearbox fatigue assessment theory. The result provides useful tools for future wind farm prognostic maintenance.

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System safety analysis of large wind turbines

Cited by 24 publications

References 77 publications

Reliability of multi-purpose offshore-facilities: Present status and future direction in Australia

Reliability of multi-purpose offshore-facilities: Present status and future direction in Australia

Health Monitoring and Safety Evaluation of the Offshore Wind Turbine Structure: A Review and Discussion of Future Development

An Approach of Quantifying Gear Fatigue Life for Wind Turbine Gearboxes Using Supervisory Control and Data Acquisition Data

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