TY - GEN
T1 - Synchronized CBPWM Strategy with Optimized Common-Mode Voltage for Three-Level Inverter at Low Carrier Ratio
AU - Gao, Zhan
AU - Wang, Lixin
AU - Zhou, Zhida
AU - Geng, Chengfei
AU - Wu, Xuanqin
AU - Sun, Pengkun
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In order to simultaneously lower the amplitude and change frequency of common-mode voltage (CMV), the vector sequence with optimized CMV performance (VSOC) for three-level (3-L) inverter is designed in this paper. Then, to satisfy the symmetry of output voltage at low carrier ratio, and prevent the two-level voltage jump, the synchronized VSOC (SVSOC) is further studied. On this basis, to simplify the calculation of SVSOC, the equivalent modulation wave of SVSOC is deduced. By comparing the equivalent modulation wave with the carrier, the carrier-based SVSOC (CBSVSOC) is proposed. Finally, the effectiveness of CBSVSOC is verified by PSIM. The simulation results indicate that CBSVSOC can reduce CMV, eliminate even and triple harmonics at low carrier ratio, and has the advantage of simple calculation.
AB - In order to simultaneously lower the amplitude and change frequency of common-mode voltage (CMV), the vector sequence with optimized CMV performance (VSOC) for three-level (3-L) inverter is designed in this paper. Then, to satisfy the symmetry of output voltage at low carrier ratio, and prevent the two-level voltage jump, the synchronized VSOC (SVSOC) is further studied. On this basis, to simplify the calculation of SVSOC, the equivalent modulation wave of SVSOC is deduced. By comparing the equivalent modulation wave with the carrier, the carrier-based SVSOC (CBSVSOC) is proposed. Finally, the effectiveness of CBSVSOC is verified by PSIM. The simulation results indicate that CBSVSOC can reduce CMV, eliminate even and triple harmonics at low carrier ratio, and has the advantage of simple calculation.
KW - carrier-based PWM
KW - common-mode voltage
KW - low carrier ratio
KW - synchronized PWM
KW - three-level inverter
UR - https://www.scopus.com/pages/publications/85182311330
U2 - 10.1109/ICEMS59686.2023.10345011
DO - 10.1109/ICEMS59686.2023.10345011
M3 - 会议稿件
AN - SCOPUS:85182311330
T3 - 2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023
SP - 3908
EP - 3913
BT - 2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 26th International Conference on Electrical Machines and Systems, ICEMS 2023
Y2 - 5 November 2023 through 8 November 2023
ER -