Wireless Torque Pulsations Measurement System for PMSMs

Martinez, Maria; Fernández, Daniel; Reigosa, David; Guerrero, Juan Manuel; Briz, Fernando

doi:10.1109/tia.2020.3012956

Cited by 10 publications

(8 citation statements)

References 30 publications

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“…Equation ( 15) presents the torsional radial acceleration, which is calculate by using the radial accelerations a r1 and a r2 . When radial accelerations from (10) and ( 12) are substituted to (15), the same gravity and lateral vibration removal can be observed is in (14) and only the radial acceleration component is left as seen in ( 16) as follows:…”

Section: Signal Processingmentioning

confidence: 86%

“…Equation ( 13) presents the torsional tangential acceleration, which is calculate using the a t1 and a t2 . After tangential accelerations from ( 10) and ( 12) are substituted to (13), the removal of gravitational component and lateral vibration can be observed in (14) and only the tangential acceleration component is left…”

Section: Signal Processingmentioning

confidence: 99%

“…Several studies have been conducted where on-shaft accelerometers have been used to measure lateral [9]- [11], [13] or torsional vibration [12], [14], [15]. However, in many of these studies, only one accelerometer is mounted on the shaft [9], [11], [14], [15], and they have not taken into consideration that both lateral and torsional vibration are measured with that sensor configuration. Nevertheless, they were able to achieve good results because in their applications the separation of lateral and torsional vibration was not necessary.…”

Section: Introductionmentioning

confidence: 99%

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On-Shaft Wireless Vibration Measurement Unit and Signal Processing Method for Torsional and Lateral Vibration

Koene

Haikonen

Tiainen

et al. 2022

IEEE/ASME Trans. Mechatron.

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Microelectromechanical systems accelerometers have opened new possibilities for vibration monitoring of a rotating machinery. They enable mounting accelerometers directly to the rotating component of the machine, e.g., shaft. This enables not only the measurement of a lateral vibration but also a torsional vibration of the machine. This increases the vibration data gathered from the machine by one measurement instrument. This article presents an onshaft wireless universal measurement unit (UMU) with innovative combination of features, such as a high measurement range and easy mounting. The UMU has a two-sensor configuration where two accelerometers are mounted to the opposite sides of a shaft. This enables to utilize a novel signal processing method to separate torsional and lateral vibration from the data. The signal processing method combines and modifies methods presented in the published literature. The results presented in this article demonstrate that the UMU together with the presented signal processing method can measure frequencies of torsional and lateral vibration accurately. However, the amplitude comparison between the UMU and reference sensors cannot be done adequately because they are measuring either different components of the machine or different physical properties.

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Section: Signal Processingmentioning

confidence: 86%

Section: Signal Processingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

On-Shaft Wireless Vibration Measurement Unit and Signal Processing Method for Torsional and Lateral Vibration

Koene

Haikonen

Tiainen

et al. 2022

IEEE/ASME Trans. Mechatron.

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“…The study notes that the load, even with the steady-state of the electrical network load, changes the vibration behaviour on its own [109,110] SPA has two main principles: separation of the signal from noise and analysis of the main component, such as local projection (LP), and the use of high-order polynomials as denoising methods. The authors in [111][112][113] proposed Adaptive High-Order Local Projection (AHLP), which calculates the centroid of the neighbourhood to reduce the vibration signal noise in bearing various faults diagnoses to extract the frequency domain features (see Figure 28). Moreover, finite-element analysis (FEA) is used to obtain shaft output torque pulsation.…”

Section: Vibration Techniquementioning

confidence: 99%

Non-Invasive Inspections: A Review on Methods and Tools

Alotaibi

Asli

Khan

2021

Sensors

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Non-Invasive Inspection (NII) has become a fundamental tool in modern industrial maintenance strategies. Remote and online inspection features keep operators fully aware of the health of industrial assets whilst saving money, lives, production and the environment. This paper conducted crucial research to identify suitable sensing techniques for machine health diagnosis in an NII manner, mainly to detect machine shaft misalignment and gearbox tooth damage for different types of machines, even those installed in a hostile environment, using literature on several sensing tools and techniques. The researched tools are critically reviewed based on the published literature. However, in the absence of a formal definition of NII in the existing literature, we have categorised NII tools and methods into two distinct categories. Later, we describe the use of these tools as contact-based, such as vibration, alternative current (AC), voltage and flux analysis, and non-contact-based, such as laser, imaging, acoustic, thermographic and radar, under each category in detail. The unaddressed issues and challenges are discussed at the end of the paper. The conclusions suggest that one cannot single out an NII technique or method to perform health diagnostics for every machine efficiently. There are limitations with all of the reviewed tools and methods, but good results possible if the machine operational requirements and maintenance needs are considered. It has been noted that the sensors based on radar principles are particularly effective when monitoring assets, but further comprehensive research is required to explore the full potential of these sensors in the context of the NII of machine health. Hence it was identified that the radar sensing technique has excellent features, although it has not been comprehensively employed in machine health diagnosis.

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“…However, torque measurement devices are expensive, which would also increase size, reduce reliability by electromagnetic interference, and so on. 7,8 Alternatively, torque can be estimated, but for special vehicles, due to the limitation of space and weight.…”

Section: Introductionmentioning

confidence: 99%

High-accuracy torque estimation and safety control for induction motor used in electric vehicles

Peng,

Si,

Wang

et al. 2023

Advances in Mechanical Engineering

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As a power output unit, Induction Motor (IM) is widely used in Electric Vehicles (EV) due to its unique advantages of higher power density and better torque ability. With more complicated motor controller system, there are some hardware and software failures which bring some risks including EV unexpected acceleration or deceleration, therefore it is necessary to build high-accuracy torque estimation and safety control strategy. Firstly, hazard and safety concept are analyzed to make sure function safety goals and levels for IM system. Secondly, a novel method of high-accuracy torque estimation is proposed based on a rotor dynamic and composite flux linkage observer. Then, fault diagnosis and handling mechanisms of motor torque are designed to avoid hazards when it is a significant difference between motor estimation torque and vehicle requested torque. Finally, power test and Hardware in Loop (HIL) bench are configured to verify torque estimation accuracy and fault protection mechanisms rationality by comparing test results and injecting related faults. Experiment result shows that motor torque accuracy is within ±5 Nm and fault protection mechanisms can bring motor to safety state promptly.

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Wireless Torque Pulsations Measurement System for PMSMs

Cited by 10 publications

References 30 publications

On-Shaft Wireless Vibration Measurement Unit and Signal Processing Method for Torsional and Lateral Vibration

On-Shaft Wireless Vibration Measurement Unit and Signal Processing Method for Torsional and Lateral Vibration

Non-Invasive Inspections: A Review on Methods and Tools

High-accuracy torque estimation and safety control for induction motor used in electric vehicles

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