Design and First Test of the New Synchronous 200 Hz System for Unsteady Pressure Field Measurement

Filipsky, Jakub; Cizek, Jan; Wittmeier, Felix; Kuthada, Timo; Meier, Simon

doi:10.1007/978-3-319-67822-1_17

Cited by 9 publications

(4 citation statements)

References 5 publications

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“…While earlier analyses have shown the potential of utilizing cost-effective Micro-Electro-Mechanical System (MEMS) sensors for SHM applications [18], only a few works in academia or industry have presented a MEMS multi-sensor arrays specifically designed for wind turbines [14]. Previous studies have examined arrays of barometric MEMS sensors in various application scenarios, such as mounting them on aerodynamic surfaces like airplane wings [19] and cars [20]. However, these works primarily focus on acquiring aerodynamic and aeroacoustic measurements without addressing the challenges of wireless communication, power consumption, and the requirements for continuous and long-term monitoring of wind turbines, particularly when employing a multisensor setup [21].…”

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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“…Previous analyses have demonstrated the potential of using inexpensive and low power MEMS sensors aerodynamic purposes (Fathima et al, 2021;Di Nuzzo et al, 2021). For example, arrays of MEMS barometers have already been deployed in other application scenarios, namely to aeroplane wings (Raab and Rohde-Brandenburger, 2020) and to cars (Filipskỳ et al, 2017). In general, cited works show that MEMS sensors are a valid option to acquire aerodynamic measurements.…”

Section: Recent Developments In Microelectronicsmentioning

confidence: 99%

Development of a wireless, non-intrusive, MEMS-based pressure and acoustic measurement system for large-scale operating wind turbine blades

Barber¹,

Deparday²,

Marykovskiy³

et al. 2022

Preprint

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Abstract. As the wind energy industry is maturing and wind turbines are growing, there is an increasing need for cost-effective monitoring and data analysis solutions to understand the complex aerodynamic and acoustic behaviour of the flexible blades. Published measurements on operating rotor blades in real conditions are very scarce, due to the complexity of the installation and use of measurement systems. However, recent developments in electronics, wireless communication and MEMS sensors are making it possible to acquire data in a cost-effective and energy-efficient way. In this work, therefore, a cost-effective MEMS-based aerodynamic and acoustic wireless measurement system that is thin, non-intrusive, easy to install, low power, and self-sustaining is designed and tested. The results show that the system is capable of delivering relevant results continuously, although work needs to be done on calibrating and correcting the pressure signals, as well as on refining the concept for the attachment sleeve for weather protection in the field. Finally, two methods for using the measurements to provide added value to the wind energy industry are developed and demonstrated: (1) inferring local angle of attack via stagnation point detection using differential pressure sensors near the leading edge, and (2) detecting and classifying leading edge erosion using instantaneous snapshots of the measured pressure fields. On-going work involves field tests on an operating 6 kW wind turbine in Switzerland.

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“…Although previous analysis [4], [12] has shown the potential of using inexpensive MEMS sensors for SHM applications, other than our work, no MEMS multi-sensor array for wind turbines is present in the literature, nor in commercial products. Arrays of barometric MEMS sensors have already been studied in several other application scenarios, where arrays of pressure sensors have been mounted onto aerodynamic surfaces, namely on airplane wings and cars [13]. In general, the aforementioned works show that MEMS sensors can be used to acquire aerodynamic and aeroacoustic measurements on surfaces.…”

Section: Related Workmentioning

confidence: 99%

Aerosense: A Self-Sustainable And Long-Range Bluetooth Wireless Sensor Node for Aerodynamic and Aeroacoustic Monitoring on Wind Turbines

Polonelli¹,

Müller²,

Kong³

et al. 2022

Preprint

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This paper presents a low-power, self-sustainable, and modular wireless sensor node for aerodynamic and acoustic measurements on wind turbines and other industrial structures. It includes 40 high-accuracy barometers, 10 microphones, 5 differential pressure sensors, and implements a lossy and a lossless on-board data compression algorithm to decrease the transmission energy cost. The wireless transmitter is based on Bluetooth Low Energy 5.1 tuned for long-range and high throughput while maintaining adequate per-bit energy efficiency (80 nJ). Moreover, we field-assessed the node capability to collect precise and accurate aerodynamic data. Outdoor experimental tests revealed that the system can acquire and sustain a data rate of 850 kbps over 438 m. The power consumption while collecting and streaming all measured data is 120 mW, enabling selfsustainability and long-term in-situ monitoring with a 111 cm 2 photovoltaic panel.

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Design and First Test of the New Synchronous 200 Hz System for Unsteady Pressure Field Measurement

Cited by 9 publications

References 5 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

Development of a wireless, non-intrusive, MEMS-based pressure and acoustic measurement system for large-scale operating wind turbine blades

Aerosense: A Self-Sustainable And Long-Range Bluetooth Wireless Sensor Node for Aerodynamic and Aeroacoustic Monitoring on Wind Turbines

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