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Impact of PWM switc...
Impact of PWM switching frequency on the radiated acoustic noise from a traction motor
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- Amlinger, Hanna (författare)
- KTH,MWL Marcus Wallenberg Laboratoriet,Järnvägsgruppen, JVG
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- Lopez Arteaga, Ines (författare)
- KTH,MWL Marcus Wallenberg Laboratoriet,Järnvägsgruppen, JVG
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- Leth, Siv (författare)
- KTH,MWL Marcus Wallenberg Laboratoriet,Järnvägsgruppen, JVG
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers Inc. 2017
- 2017
- Engelska.
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Ingår i: 2017 20th International Conference on Electrical Machines and Systems, ICEMS 2017. - : Institute of Electrical and Electronics Engineers Inc.. - 9781538632468
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The radiated acoustic noise from a traction motor at low speeds is dominated by the noise of electromagnetic origin. For a motor operated from pulse width modulated (PWM) converters, the switching frequency of the converter will have a large impact on the noise. The total harmonic distortion of the motor phase currents and thus also the exciting forces, will decrease with increasing switching frequency. Furthermore, changing the switching frequency will shift the frequencies of the exciting forces, hence have an influence on the coincidence with structural resonances of the motor. Tests have been performed on a traction motor and a decrease in sound pressure level with increasing switching frequency has been quantified and analyzed.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Farkostteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Vehicle Engineering (hsv//eng)
Nyckelord
- Acoustic noise
- Pulse width modulation (PWM)
- Switching frequency
- Traction motor
- Electric machinery
- Pulse width modulation
- Switching
- Voltage control
- Exciting forces
- Low speed
- Motor phase
- Pulse width modulated converters
- Sound pressure level
- Structural resonance
- Total harmonic distortion (THD)
- Traction motors
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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