TY - GEN
T1 - Vibration and Noise Emitted by Dry-type Air-core Reactors Under Sine-wave Current Excitation
AU - Li, Jingsong
AU - Qu, Baojun
AU - Yu, Keping
N1 - Funding Information:
This work was supported in part by National Natural Science Foundation of China (Youth Foundation) under Grant 51807106, Key Open Project of State Key Laboratory of Tsinghua University under Grant SKLD17Z01 and the JSPS KAKENHI under Grant JP18K18044.
Publisher Copyright:
© 2019 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - According to magneto-mechanical strong coupled effect, structure mode is discussed by engaging finite element (FE) method and both natural frequency and modal shape for a dry-type air-core reactor (DAR) are obtained in this paper. On the basis of harmonic response analysis, electromagnetic forces under sine-wave current excitation are mapped with the structure mesh, the vibration spectrums are gained and the consequences represent that the whole structure vibration predominates in the axial direction, with less radial vibration. Referring to the test standard of reactor noise, the rules of emitted noise of the DAR are measured and comparatively analyzed at power frequency and chosen other frequencies match the sample resonant frequency and the methods of active vibration and noise reduction are put forward. Finally, the low acoustic noise emission of a prototype DAR is verified by simulation and measurement.
AB - According to magneto-mechanical strong coupled effect, structure mode is discussed by engaging finite element (FE) method and both natural frequency and modal shape for a dry-type air-core reactor (DAR) are obtained in this paper. On the basis of harmonic response analysis, electromagnetic forces under sine-wave current excitation are mapped with the structure mesh, the vibration spectrums are gained and the consequences represent that the whole structure vibration predominates in the axial direction, with less radial vibration. Referring to the test standard of reactor noise, the rules of emitted noise of the DAR are measured and comparatively analyzed at power frequency and chosen other frequencies match the sample resonant frequency and the methods of active vibration and noise reduction are put forward. Finally, the low acoustic noise emission of a prototype DAR is verified by simulation and measurement.
KW - Dry-type air-core reactors (DARs)
KW - harmonic response analysis
KW - magneto-mechanical coupling
KW - sine-wave current excitation
KW - vibration and acoustic noise
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U2 - 10.1109/ICEMS.2019.8921801
DO - 10.1109/ICEMS.2019.8921801
M3 - Conference contribution
AN - SCOPUS:85077124915
T3 - 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
BT - 2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
Y2 - 11 August 2019 through 14 August 2019
ER -