TY - JOUR
T1 - Decoupled Modulation Scheme for Harmonic Current Suppression in Five-Phase PMSM
AU - Wang, Wusen
AU - Song, Zaixin
AU - Liu, Yuxin
AU - Liu, Chunhua
N1 - Funding Information:
This work was supported in part by a Grant of Shenzhen–Hong Kong Innovation Circle Category D Project from the Science Technology and Innovation Committee of Shenzhen Municipality, China, under Project SGDX2019081623101559, in part by a Grant from the Innovation and Technology Commission, Hong Kong SAR, under Project ITP/027/19AP, in part by a Grant from the Teaching Development Grant, City University of Hong Kong, Hong Kong SAR, under Project TDG6000784, and in part by a Collaborative Research Fund from the Research Grants Council of Hong Kong, Hong Kong SAR, under Project C1052-21GF
Publisher Copyright:
© 1986-2012 IEEE.
PY - 2022/8/1
Y1 - 2022/8/1
N2 - Harmonic currents always exist in a five-phase permanent magnet synchronous machine due to some disturbances. This letter proposes a unique modulation scheme to synthesize the control voltage in the harmonic subspace, xy-space, to suppress harmonic currents actively. The advantage of the proposed modulation scheme is that it is decoupled from the modulation process in the αβ-space, thereby not affecting the torque output or dq-axis currents. First, according to the αβ-space control voltage reference, the action time ranges of two large and two middle voltage vectors adjacent to the control voltage reference are determined. Second, the ranges are divided into several segments equally. Then, the best action time is selected from these segments to generate a proper control voltage in xy-space. Finally, the switching pattern of the inverter is designed with the selected action time. Experiments have been implemented to verify the effectiveness of the proposed modulation scheme.
AB - Harmonic currents always exist in a five-phase permanent magnet synchronous machine due to some disturbances. This letter proposes a unique modulation scheme to synthesize the control voltage in the harmonic subspace, xy-space, to suppress harmonic currents actively. The advantage of the proposed modulation scheme is that it is decoupled from the modulation process in the αβ-space, thereby not affecting the torque output or dq-axis currents. First, according to the αβ-space control voltage reference, the action time ranges of two large and two middle voltage vectors adjacent to the control voltage reference are determined. Second, the ranges are divided into several segments equally. Then, the best action time is selected from these segments to generate a proper control voltage in xy-space. Finally, the switching pattern of the inverter is designed with the selected action time. Experiments have been implemented to verify the effectiveness of the proposed modulation scheme.
KW - Five-phase
KW - harmonic current
KW - modulation
KW - permanent magnet synchronous machine (PMSM)
UR - http://www.scopus.com/inward/record.url?scp=85126522631&partnerID=8YFLogxK
U2 - 10.1109/TPEL.2022.3156389
DO - 10.1109/TPEL.2022.3156389
M3 - Journal article
AN - SCOPUS:85126522631
SN - 0885-8993
VL - 37
SP - 8795
EP - 8799
JO - IEEE Transactions on Power Electronics
JF - IEEE Transactions on Power Electronics
IS - 8
ER -