Piezoelectric Impedance-Based Structural Health Monitoring of Wind Turbine Structures: Current Status and Future Perspectives

Le, Thanh-Cao; Luu, Tran-Huu-Tin; Nguyen, Huu-Phuong; Nguyen, Trung-Hau; Ho, Duc-Duy; Huynh, Thanh‐Canh

doi:10.3390/en15155459

Cited by 15 publications

(5 citation statements)

References 112 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This power demand can easily be met from small-size solar panels, as reported in Ref. [44], eliminating the need for a slip ring to supply the proposed device. The proposed vibration monitoring system appears to be capable of accurately detecting vibrations at a resonance within 2.4 kHz.…”

Section: Resultsmentioning

confidence: 88%

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: Resultsmentioning

confidence: 88%

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

“…• Wireless monitoring via wireless sensors: In recent decades, the development of wireless sensor technologies has been based on advancements in microelectromechanical systems (MEMS) technology, digital electronics, and wireless communications [225][226][227]. The two main subsystems of this system are (1) Portable Inspection and Maintenance Strategy (PIMS) [228,229] and (2) Portable Data Acquisition Strategy (PDAs) [230]. • Remote-sensing technologies: remote-sensing technologies can be divided into five main groups, including (1) mathematical morphology-based methods [231], (2) objectoriented methods Li et al [232], (3) edge detection-based methods [233], (4) road information-based methods [234] and ( 5) statistics-based methods [235].…”

Section: Temperaturementioning

confidence: 99%

Effects of Environmental and Operational Conditions on Structural Health Monitoring and Non-Destructive Testing: A Systematic Review

et al. 2023

View full text Add to dashboard Cite

The development of Structural Health Monitoring (SHM) and Non-Destructive Testing (NDT) techniques has rapidly evolved and matured over the past few decades. Advances in sensor technology have facilitated deploying SHM systems for large-scale structures and local NDT of structural members. Although both methods have been successfully applied to identify structural damage in various systems, Environmental and Operational Condition (EOC) variations can influence sensor measurements and mask damage signatures in the structural response. EOCs include environmental conditions, such as temperature, humidity, and wind, as well as operational conditions, such as mass loading, vibration, and boundary conditions. The effect of EOCs can significantly undermine the reliability and robustness of damage assessment technologies and limit their performance. Thus, successful SHM and NDT systems can compensate for changing EOCs. This paper provides a state-of-the-art review of the effects of EOCs on SHM and NDT systems. It presents recent developments in advanced sensing technology, signal processing, and analysis techniques that aim to eliminate the masking effect of EOC variations and increase the damage sensitivity and performance of SHM and NDT systems. The paper concludes with current research challenges, trends, and recommendations for future research directions.

show abstract

“…Therefore, wind turbines have evolved significantly over the last years to harness wind energy more efficiently. In this context, the integration of wireless sensor networks within wind turbine rotor blades has emerged as a most promising approach for enabling predictive maintenance [1], monitoring structural health [2,3], and for optimizing the overall output performance [4,5]. However, powering these * Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

Scalable electromagnetic energy harvester for wind turbine rotor blade applications

Schlögl,

Schneider,

Schmid

2024

Smart Mater. Struct.

View full text Add to dashboard Cite

One of the biggest challenges in structural health monitoring for rotor blades in wind turbines is to provide enough energy to power wireless sensor nodes. Batteries are not an adequate solution due to their limited lifetime and conventional cabling fails due to the rotation of the rotor blade. Therefore, we present an electromagnetic energy harvester that is specifically designed to be operated inside rotor blades and can generate a sufficient amount of energy. It uses the changing gravitational force vector to move a permanent magnet in a tube and converts this mechanical into electrical energy by coils arranged around the tube. Finite element methods simulations were performed to estimate the generated energy and an extensive parameter sweep of several key design parameters provided guidance for an optimized performance of a prototype. This device was characterized in the lab followed by a field test in a wind turbine where it was operated for several days and provided a continuous and rectified power of 6 mW, enough to power conventional wireless accelerometers, typically used within a predictive maintenance concept for the vibrational monitoring of rotor blades.

show abstract

Piezoelectric Impedance-Based Structural Health Monitoring of Wind Turbine Structures: Current Status and Future Perspectives

Cited by 15 publications

References 112 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

Effects of Environmental and Operational Conditions on Structural Health Monitoring and Non-Destructive Testing: A Systematic Review

Scalable electromagnetic energy harvester for wind turbine rotor blade applications

Contact Info

Product

Resources

About