TY - GEN
T1 - A Novel SVPWM Control Strategy for Dual Inverter System to Eliminate Common Mode Voltage with High Modulation
AU - Wang, Junxiong
AU - Liu, Hongchen
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/1
Y1 - 2019/1
N2 - In this paper, a novel SVPWM scheme to suppress common mode voltage for open-end winding induction motor (OEW-induction motor) drive is presented. Compared to other general three-level inverter configurations, the control strategy of this dual two-level inverter structure is more flexible. But with a single dc power supply in the OEW-induction motor drive system, many negative effects will be brought due to the presence of common mode voltage, such as causing circulating current in the winding and reducing system reliability. Owing to elimination the negative effect of the common mode voltage, one way is to synthesize the reference voltage with the switching combinations which do not produce common model voltage. However, the maximum modulation will greatly be reduced with these switching combinations being used. In order to maintain the maximum modulation while the common mode voltage is suppressed, a novel SVPWM scheme for this structure has been proposed. It is illustrated that the average of common mode voltage of the system is suppressed in each sampling-time interval by adjusting the placement of voltage space vectors and reasonable voltage selection. In addition the switching frequency of this novel control strategy for dual two-level inverter system is equal to the traditional SVPWM control strategy, and it has a significant improvement of the maximum linear modulation index. The proposed modulation control strategy has been verified by the simulation on a MATLAB platform.
AB - In this paper, a novel SVPWM scheme to suppress common mode voltage for open-end winding induction motor (OEW-induction motor) drive is presented. Compared to other general three-level inverter configurations, the control strategy of this dual two-level inverter structure is more flexible. But with a single dc power supply in the OEW-induction motor drive system, many negative effects will be brought due to the presence of common mode voltage, such as causing circulating current in the winding and reducing system reliability. Owing to elimination the negative effect of the common mode voltage, one way is to synthesize the reference voltage with the switching combinations which do not produce common model voltage. However, the maximum modulation will greatly be reduced with these switching combinations being used. In order to maintain the maximum modulation while the common mode voltage is suppressed, a novel SVPWM scheme for this structure has been proposed. It is illustrated that the average of common mode voltage of the system is suppressed in each sampling-time interval by adjusting the placement of voltage space vectors and reasonable voltage selection. In addition the switching frequency of this novel control strategy for dual two-level inverter system is equal to the traditional SVPWM control strategy, and it has a significant improvement of the maximum linear modulation index. The proposed modulation control strategy has been verified by the simulation on a MATLAB platform.
KW - Common mode voltage elimination
KW - Multilevel inverter
KW - Open-end winding
UR - https://www.scopus.com/pages/publications/85074975887
U2 - 10.1109/ICEICT.2019.8846313
DO - 10.1109/ICEICT.2019.8846313
M3 - 会议稿件
AN - SCOPUS:85074975887
T3 - Proceedings of 2019 IEEE 2nd International Conference on Electronic Information and Communication Technology, ICEICT 2019
SP - 814
EP - 819
BT - Proceedings of 2019 IEEE 2nd International Conference on Electronic Information and Communication Technology, ICEICT 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd IEEE International Conference on Electronic Information and Communication Technology, ICEICT 2019
Y2 - 20 January 2019 through 22 January 2019
ER -