TY - GEN
T1 - Magnetically controlled saturable reactor core vibration under practical working conditions
AU - Tong, Ben
AU - Qingxin, Yang
AU - Rongge, Yan
AU - Lihua, Zhu
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2017/1/12
Y1 - 2017/1/12
N2 - Magnetically controlled saturable reactors (MCSRs) are widely used in high voltage power system, but they make larger vibration and noise than transformers and other types of reactors due to the gapped iron-core structure and magnetic saturation. The main reasons of MCSR vibration are magnetostrictive effect of silicon steel sheet and electromagnetic force between core discs. This paper studies the influence of these two kinds of forces on MCSR vibration, which will be used to help seek new vibration reduction method. Firstly, because MCSRs work in DC bias conditions, multigroup magnetic and magnetostrictive characteristics of silicon steel sheet considering anisotropy under different DC bias excitation conditions are tested. Secondly, based on energy variation principle and virtual work principle, an electro-magneto-mechanical coupled numerical model for MCSRs is established. In order to compare the influence of magnetostrictive effect with electromagnetic force effect on MCSR vibration, vibration accelerations caused by magnetostrictive effect, electromagnetic force and the combination of them are calculated, respectively. From the computation results, it can be seen that the total acceleration is not simple superposition of electromagnetic acceleration with magnetostrictive acceleration. Finally, vibrations of a MCSR under different practical working conditions are tested to prove the validity of the proposed model.
AB - Magnetically controlled saturable reactors (MCSRs) are widely used in high voltage power system, but they make larger vibration and noise than transformers and other types of reactors due to the gapped iron-core structure and magnetic saturation. The main reasons of MCSR vibration are magnetostrictive effect of silicon steel sheet and electromagnetic force between core discs. This paper studies the influence of these two kinds of forces on MCSR vibration, which will be used to help seek new vibration reduction method. Firstly, because MCSRs work in DC bias conditions, multigroup magnetic and magnetostrictive characteristics of silicon steel sheet considering anisotropy under different DC bias excitation conditions are tested. Secondly, based on energy variation principle and virtual work principle, an electro-magneto-mechanical coupled numerical model for MCSRs is established. In order to compare the influence of magnetostrictive effect with electromagnetic force effect on MCSR vibration, vibration accelerations caused by magnetostrictive effect, electromagnetic force and the combination of them are calculated, respectively. From the computation results, it can be seen that the total acceleration is not simple superposition of electromagnetic acceleration with magnetostrictive acceleration. Finally, vibrations of a MCSR under different practical working conditions are tested to prove the validity of the proposed model.
KW - Magnetically controlled saturable reactor
KW - Magneto-mechanical coupled model
KW - Magnetostriction
KW - Vibration analysis
UR - https://www.scopus.com/pages/publications/85012000433
U2 - 10.1109/CEFC.2016.7816333
DO - 10.1109/CEFC.2016.7816333
M3 - 会议稿件
AN - SCOPUS:85012000433
T3 - IEEE CEFC 2016 - 17th Biennial Conference on Electromagnetic Field Computation
BT - IEEE CEFC 2016 - 17th Biennial Conference on Electromagnetic Field Computation
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 17th Biennial IEEE Conference on Electromagnetic Field Computation, IEEE CEFC 2016
Y2 - 13 November 2016 through 16 November 2016
ER -