TY - GEN
T1 - Optimized flux-weakening control with virtue voltage buffer for saturated high-speed induction motor drives
AU - Dong, Zhen
AU - Ding, Zhengtao
AU - Xu, Dianguo
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/9
Y1 - 2019/9
N2 - It is known that the flux-weakening control of induction motor for maximum torque inevitably suffers the degraded dynamic performance due to the narrow voltage margin. To deal with this problem, a novel flux-weakening control method with virtue voltage buffer (VVB) is proposed. The saturated command voltage output from current regulator is compensated with a certain amount of virtue voltage margin provided by VVB before sent to the SVPWM (space vector pulse width modulation) module, and then, the magnitude and phase information of modified voltage error caused by overmodulation is employed for flux-weakening controller and VVB design. As a result, the system's saturation condition during transient period can be well relieved, and thus a high dynamic performance in hexagon operation is achieved. In addition, the proposed approach unifies the flux-weakening controller and the anti-windup structure, simplifying the current loop structure, as well as inherently enjoys a better current-decoupling performance during load change period. Comparison results with other two existing methods verify the superiority of proposed method.
AB - It is known that the flux-weakening control of induction motor for maximum torque inevitably suffers the degraded dynamic performance due to the narrow voltage margin. To deal with this problem, a novel flux-weakening control method with virtue voltage buffer (VVB) is proposed. The saturated command voltage output from current regulator is compensated with a certain amount of virtue voltage margin provided by VVB before sent to the SVPWM (space vector pulse width modulation) module, and then, the magnitude and phase information of modified voltage error caused by overmodulation is employed for flux-weakening controller and VVB design. As a result, the system's saturation condition during transient period can be well relieved, and thus a high dynamic performance in hexagon operation is achieved. In addition, the proposed approach unifies the flux-weakening controller and the anti-windup structure, simplifying the current loop structure, as well as inherently enjoys a better current-decoupling performance during load change period. Comparison results with other two existing methods verify the superiority of proposed method.
KW - Dynamic performance improvement
KW - Flux-weakening control
KW - High-speed operation
KW - Induction motor (IM)
KW - Saturation alleviation
UR - https://www.scopus.com/pages/publications/85076740875
U2 - 10.1109/ECCE.2019.8912817
DO - 10.1109/ECCE.2019.8912817
M3 - 会议稿件
AN - SCOPUS:85076740875
T3 - 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
SP - 326
EP - 333
BT - 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2019
Y2 - 29 September 2019 through 3 October 2019
ER -