Vibration, Acoustic Noise Generation and Power Quality in Inverter-fed Induction Motors

Delgado-Arredondo, Paulo Antonio; Romero‐Troncoso, Rene J.; Duque-Pérez, Óscar; Moriñigo-Sotelo, Daniel; Osornio-Ríos, Roque Alfredo

doi:10.1109/demped.2019.8864844

Cited by 6 publications

(2 citation statements)

References 22 publications

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“…If the torque load is considered constant while the inverter operates in the linear modulation region, the amplitudes of interharmonic currents are minimal under ideal conditions [53]. However, AC motors driven by a VFD generate acoustic noise and mechanical vibrations [55]. Excessive torsional vibrations are particularly notable due to the interaction of the natural frequency of the machines ( f Nr−b ).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Interharmonics Generation in Induction Motors Driven by Variable Frequency Drives and AC Choppers

Gudiño-Ochoa,

Jalomo-Cuevas,

Molinar-Solís

et al. 2023

Energies

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In modern power systems, interharmonics have emerged as noninteger frequency components that appear in current or voltage signals. Double-stage AC-DC-AC converters have been identified as a primary source of interharmonics. Previous studies have highlighted modulation techniques, filters, passive components, unbalanced conditions and DC link effects as relevant factors. However, the interaction between these factors and the inertial properties of induction motors has not been explored. This study assesses various types of AC drives, including variable frequency drives (VFDs) and soft starters (AC choppers), to investigate their interaction with machine inertial properties in interharmonic generation. The employed technique for time-frequency spectral analysis is the wavelet synchrosqueezed transform combined with a clustering method. This paper demonstrates that the interaction of the inertial properties of low-power induction motors with the variations of the switching frequencies of the VFDs, the filters used in the DC link and a soft start indirectly contribute to harmonic generation and potentially to interharmonics in the electrical grid and the outputs of the inverter.

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Section: Introductionmentioning

confidence: 99%

Analysis of Interharmonics Generation in Induction Motors Driven by Variable Frequency Drives and AC Choppers

Gudiño-Ochoa,

Jalomo-Cuevas,

Molinar-Solís

et al. 2023

Energies

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“…Unfortunately, these converters introduce higher harmonics into the voltage supplying the motor, which, in turn, triggers a number of unfavorable phenomena. The use of converters contributes to, among other things, an increase in the generated noise and an increase in the amplitudes of forces causing vibrations of the motor [5], leading to a higher risk of bearing damage. Another negative result caused by converter usage is the appearance of bearing voltages and currents [6].…”

Section: Introductionmentioning

confidence: 99%

Influence of the Shielding Winding on the Bearing Voltage in a Permanent Magnet Synchronous Machine

2022

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This article presents selected methods of limiting the bearing voltages of synchronous machines with permanent magnets supplied from power electronic converters. The authors analyzed methods based on the use of various shielding windings placed in slot wedges and mounted in the stator end-winding region. The values of the parasitic capacitances of the machine, on which the levels of bearing voltages depend, were determined using the finite element method. Three-dimensional simulation models were used for the calculations. The analysis of the influence of the shielding windings on the bearing voltage waveforms was conducted on the basis of circuit models with two- and three-level converters. The obtained calculation results indicate a high potential in limiting bearing voltages.

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Reliability Surveys of Fault Distributions in Rotating Electrical Machines : – Case Study of Fault Detections in IMs –

Bessous

2020

020 1st International Conference on Communications, Control Systems and Signal Processing (CCSSP)

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Vibration, Acoustic Noise Generation and Power Quality in Inverter-fed Induction Motors

Cited by 6 publications

References 22 publications

Analysis of Interharmonics Generation in Induction Motors Driven by Variable Frequency Drives and AC Choppers

Analysis of Interharmonics Generation in Induction Motors Driven by Variable Frequency Drives and AC Choppers

Influence of the Shielding Winding on the Bearing Voltage in a Permanent Magnet Synchronous Machine

Reliability Surveys of Fault Distributions in Rotating Electrical Machines : – Case Study of Fault Detections in IMs –

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