Wireless Inertial Measurements on Wind Turbine Rotor Blades

Berkemeyer, Frank; Lang, Walter

doi:10.1109/jsen.2021.3122952

Cited by 3 publications

(2 citation statements)

References 20 publications

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“…While a few examples of wireless solutions installed on wind turbines can be found in the literature [25], previous efforts have primarily focused on vibration measurements on the wind turbine tower rather than acquiring aerodynamic data directly from the blades. In the former case, the system must process and transmit data in the range of 5 kbps [24], while aerodynamic analysis typically requires a much higher throughput of over 1 Mbps [8], also reaching up to 4.2 Mbps when microphones are employed [14].…”

Section: Related Workmentioning

confidence: 99%

A Self-Sustainable and Micro-Second Time Synchronized Multi-Node Wireless System for Aerodynamic Monitoring on Wind Turbines

Polonelli,

Moallemi,

Kong

et al. 2023

IEEE Access

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Wind energy generation plays a vital role in transitioning from fossil fuel-based energy sources and in alleviating the impacts of global warming. However, global wind energy coverage still needs to rise, while requiring a significant step up in conversion efficiency: monitoring wind flow and operational parameters of wind turbines is an essential prerequisite for coverage and conversion efficiency optimization. This paper presents a low-power, self-sustainable, and timesynchronised system for aerodynamic and acoustic measurements on operating wind turbines. It includes 40 high-accuracy barometers, 10 microphones, 5 differential pressure sensors, and implements a coarse time synchronisation on top of a Bluetooth Low Energy 5.1 protocol tuned for long-range communications. Moreover, we field-assessed the node capability to collect precise and accurate aerodynamic data with a multi-node setup. Outdoor experimental tests revealed that the system can acquire heterogeneous data with a time synchronisation error below 100 µs and sustain a data rate of 600 kbps over 400 m with up to 5 sensor nodes, enough to fully instrument a wind turbine. The proposed method does not add any traffic overhead on the Bluetooth Low Energy 5.1 protocol, fully relying only on connection events and withstands transmission discontinuity often present in long range wireless communications.

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Section: Related Workmentioning

confidence: 99%

A Self-Sustainable and Micro-Second Time Synchronized Multi-Node Wireless System for Aerodynamic Monitoring on Wind Turbines

Polonelli,

Moallemi,

Kong

et al. 2023

IEEE Access

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“…[25], while in Ref. [26] a wireless inertial measurement unit capable of sensing angular speed and tri-axial accelerations was experimentally investigated on a 3 MW wind turbine. Lately, a contactless measurement method denoted as the blade tip timing (BTT) has been proposed.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2023

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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.

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Blade Position and Motion Estimation on the Surface of a Rotating Wind Turbine Through a Single MEMS IMU

Trummer,

Polonelli,

Deparday

et al. 2023

2023 9th International Workshop on Advances in Sensors and Interfaces (IWASI)

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Wireless Inertial Measurements on Wind Turbine Rotor Blades

Cited by 3 publications

References 20 publications

A Self-Sustainable and Micro-Second Time Synchronized Multi-Node Wireless System for Aerodynamic Monitoring on Wind Turbines

A Self-Sustainable and Micro-Second Time Synchronized Multi-Node Wireless System for Aerodynamic Monitoring on Wind Turbines

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

Blade Position and Motion Estimation on the Surface of a Rotating Wind Turbine Through a Single MEMS IMU

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