Remote Measurements and Vibration Analysis of Existing Wind Turbines

Chiang, Chih‐Hung; Hsu, Keng-Tsang; Yu, Chih-Peng; Ченг, Чиа-Чи; Pan, Jie-Zhen

doi:10.1520/jte20180025

Cited by 5 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Currently, this technology still remains immature for its practical implementation in gas turbines. Other recent studies reported new contactless vibration measurement systems based on laser scanning and ground-based radars [31][32][33], but they can only be used for detecting large vibration amplitudes in operating blades. The recent development of MEMS-based fabrication techniques has provided an alternative for designers owing to their cost-effective and lightweight features that make them particularly attractive for the vibration monitoring in rotating structures.…”

Section: Introductionmentioning

confidence: 99%

Accuracy Characterization of a MEMS Accelerometer for Vibration Monitoring in a Rotating Framework

et al. 2023

View full text Add to dashboard Cite

Active and passive vibration control systems are of paramount importance in many engineering applications. If an external load excites a structure’s resonance and the damping is too low, detrimental events, such as crack initiation, growth and, in the worst case, fatigue failure, can be entailed. Damping systems can be commonly found in applications such as industrial machines, vehicles, buildings, turbomachinery blades, and so forth. Active control systems usually achieve higher damping effectiveness than passive ones, but they need a sensor to detect the working conditions that require damping system activation. Recently, the development of such systems in rotating structures has received considerable interest among designers. As a result, the development of vibration monitoring equipment in rotating structures is also a topic of particular interest. In this respect, a reliable, inexpensive and wireless monitoring system is of utmost importance. Typically, optical systems are used to measure vibrations, but they are expensive and require rather complex processing algorithms. In this paper, a wireless system based on a commercial MEMS accelerometer is developed for rotating blade vibration monitoring. The proposed system measurement accuracy was assessed by means of comparison with a reference wired measurement setup based on a mini integrated circuit piezoelectric (ICP) accelerometer adapted for data acquisition in a rotating frame. Both the accelerometers were mounted on the tip of the blade and, in order to test the structure under different conditions, the first four blade resonances were excited by means of piezoelectric actuators, embedded in a novel experimental setup. The frequency and amplitude of acceleration, simultaneously measured by the reference and MEMS sensors, were compared with each other in order to investigate the viability and accuracy of the proposed wireless monitoring system. The rotor angular speed was varied from 0 to 300 rpm, and the data acquisitions were repeated six times for each considered condition. The outcomes reveal that the wireless measurement system may be successfully used for vibration monitoring in rotating blades.

show abstract

Section: Introductionmentioning

confidence: 99%

Accuracy Characterization of a MEMS Accelerometer for Vibration Monitoring in a Rotating Framework

et al. 2023

View full text Add to dashboard Cite

show abstract

“…As a clean, safe, and sustainable natural source, wind energy becomes increasingly important in power supply [1][2][3]. Plenty of new wind farms have been installed in mountainous and hilly regions in many countries as a strategy for narrowing the regional energy disparity [4,5].…”

Section: Introductionmentioning

confidence: 99%

Field Monitoring and Numerical Analysis of the Reinforced Concrete Foundation of a Large‐Scale Wind Turbine

Zhou¹,

Xin-xi²,

Deng³

et al. 2021

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

The objective of this study is to examine the performance of the shallow reinforced concrete foundation of a large-scale wind turbine under the influence of environmental loads. A 2 MW horizontal-axis onshore wind turbine supported by a shallow concrete foundation was considered. The foundation stresses, foundation settlements, and static and dynamic contact pressures at various positions of the shallow foundation were monitored from the construction phase to the operation phase in the field. Numerical simulations were also performed to further analyze the behavior of the wind turbine foundation in different cases. The results demonstrate that the responses of the reinforced concrete foundation, i.e., foundation stresses, contact pressures, and foundation settlements, were variables closely related to the wind direction and wind speed. The distribution of foundation stresses suggested that a reasonable design of steel reinforcement cages around the foundation steel ring is important. The dynamic contact pressure of the foundation could reach 5 kPa, so the influence of dynamic wind loads on the foundation response could not be always neglected, particularly for the foundations seated on weak soils. The foundation settlement during the operation phase could be characterized by the logistic model, but its distribution was uneven due to the presence of eccentric upper weight and wind load. The findings would provide guidance for the foundation design of onshore wind turbines in hilly areas.

show abstract

In-situ condition monitoring of wind turbine blades: A critical and systematic review of techniques, challenges, and futures

Sun

Wang

Chu

2022

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

Remote Measurements and Vibration Analysis of Existing Wind Turbines

Cited by 5 publications

References 11 publications

Accuracy Characterization of a MEMS Accelerometer for Vibration Monitoring in a Rotating Framework

Accuracy Characterization of a MEMS Accelerometer for Vibration Monitoring in a Rotating Framework

Field Monitoring and Numerical Analysis of the Reinforced Concrete Foundation of a Large‐Scale Wind Turbine

In-situ condition monitoring of wind turbine blades: A critical and systematic review of techniques, challenges, and futures

Contact Info

Product

Resources

About