TY - GEN
T1 - Direct Torque Control of DC-Biased Hybrid Excitation Machine with Adjustable Zero-Sequence Current
AU - Xu, Liang
AU - Zhi, Youhui
AU - Jiang, Tingting
AU - Zhao, Wenxiang
AU - Niu, Shuangxia
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023/12/14
Y1 - 2023/12/14
N2 - This article presents a direct torque control strategy for a DC-Biased hybrid excitation machine with zero-sequence current. The drive topology is first introduced and analyzed, and then the machine is mathematically modeled. Based on the characteristics of the model which has an additional current to adjust, a control strategy is raised. The strategy adjusts the duty cycle by varying the switching time, reserving the regulation time of the dc biased current for every switching cycle. Also, since conventional direct torque control suffers from unstable switching frequency and large torque and flux ripples, Space vector pulse width modulation method is introduced. In general, simulation results are consistent with the theoretical results, it indicates that by using the control strategy the machine can achieve accurate operating conditions and rapid dynamic torque response.
AB - This article presents a direct torque control strategy for a DC-Biased hybrid excitation machine with zero-sequence current. The drive topology is first introduced and analyzed, and then the machine is mathematically modeled. Based on the characteristics of the model which has an additional current to adjust, a control strategy is raised. The strategy adjusts the duty cycle by varying the switching time, reserving the regulation time of the dc biased current for every switching cycle. Also, since conventional direct torque control suffers from unstable switching frequency and large torque and flux ripples, Space vector pulse width modulation method is introduced. In general, simulation results are consistent with the theoretical results, it indicates that by using the control strategy the machine can achieve accurate operating conditions and rapid dynamic torque response.
KW - Control strategy
KW - direct torque control (DTC)
KW - hybrid excitation machines (HEMs)
KW - zero-sequence current
UR - http://www.scopus.com/inward/record.url?scp=85182338396&partnerID=8YFLogxK
U2 - 10.1109/ICEMS59686.2023.10344562
DO - 10.1109/ICEMS59686.2023.10344562
M3 - Conference article published in proceeding or book
AN - SCOPUS:85182338396
T3 - 2023 26th International Conference on Electrical Machines and Systems, ICEMS 2023
SP - 2722
EP - 2726
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 -