TY - GEN
T1 - Optimized Current Regulator Design for Induction Motor Dynamic Performance Improvement in Over-Modulation Region
AU - Yu, Yong
AU - Dong, Qinghua
AU - Dong, Zhen
AU - Shao, Yanzhen
AU - Wang, Bo
AU - Xu, Dianguo
N1 - Publisher Copyright:
© 2018 KIEE EMECS (KIEE Electrical Machinery and Energy Conversion Systems).
PY - 2018/11/27
Y1 - 2018/11/27
N2 - Over-modulation region operation can ensure high utilization of DC-link, which can extend the speed range and output torque capability for induction motor (IM) drives. However, the maximum voltage and current constrains inevitably degrade the dynamic performance of the system. To achieve fast current response, this paper presents an optimized current regulator structure. First, a feedforward resistance PI current regulator (FFRPI) is proposed. Then, the anti-integral item is added into the controller to further improve the dynamic performance. Moreover, to reduce the impact of digital control delay in over modulation region, the dual-sampling dual-update modulation method is adopted combined with Tustin discretization method. Compared with the conventional PI control and feedforward PI (FFPI) control, the proposed approach can improve the dynamic performance of current regulator. Finally, the effectiveness of the proposed method is verified by the simulation and experimental results.
AB - Over-modulation region operation can ensure high utilization of DC-link, which can extend the speed range and output torque capability for induction motor (IM) drives. However, the maximum voltage and current constrains inevitably degrade the dynamic performance of the system. To achieve fast current response, this paper presents an optimized current regulator structure. First, a feedforward resistance PI current regulator (FFRPI) is proposed. Then, the anti-integral item is added into the controller to further improve the dynamic performance. Moreover, to reduce the impact of digital control delay in over modulation region, the dual-sampling dual-update modulation method is adopted combined with Tustin discretization method. Compared with the conventional PI control and feedforward PI (FFPI) control, the proposed approach can improve the dynamic performance of current regulator. Finally, the effectiveness of the proposed method is verified by the simulation and experimental results.
KW - Current regulator
KW - Induction motor drives
KW - dynamic performance improvement
KW - feedforward resistance PI
KW - over-modulation
UR - https://www.scopus.com/pages/publications/85060049595
U2 - 10.23919/ICEMS.2018.8549516
DO - 10.23919/ICEMS.2018.8549516
M3 - 会议稿件
AN - SCOPUS:85060049595
T3 - ICEMS 2018 - 2018 21st International Conference on Electrical Machines and Systems
SP - 1187
EP - 1192
BT - ICEMS 2018 - 2018 21st International Conference on Electrical Machines and Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 21st International Conference on Electrical Machines and Systems, ICEMS 2018
Y2 - 7 October 2018 through 10 October 2018
ER -