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- Title
采用改进复矢量的 PMSM 电流解耦控制.
- Authors
洪俊杰; 何衍东; 黄健钊; 李立毅
- Abstract
The voltage feed-forward decoupling control is sensitive to the parameter change of PMSM so that its decoupling performance is not ideal when the motor parameters change, so a kind of current decoupling control based on complex vector is proposed. The complex vector control introduces a virtual axis zero point that varies with speed to cancel out the poles of the controlled object, making the system approximately equivalent to a first-order inertial link, thereby improving the decoupling effect. At the same time, in order to improve the decoupling performance when the parameters of complex vector controller and motor parameters mismatch, the disturbance observer was used to observe and compensate the voltage error caused by the variation of motor parameters and current coupling, which can reduce the dq axis current coupling gain, and enhance the robustness and dynamic performance of the system. Compared with the traditional decoupling control strategy, the decoupling strategy can effectively improve the dynamic tracking performance of dq axis current and reduce current fluctuations, its effectiveness on dq axis current is verified.
- Subjects
BIVECTORS; CURRENT fluctuations; PERMANENT magnet motors; DYNAMICAL systems; VECTOR control
- Publication
Electric Machines & Control / Dianji Yu Kongzhi Xuebao, 2023, Vol 27, Issue 6, p106
- ISSN
1007-449X
- Publication type
Article
- DOI
10.15938/j.emc.2023.06.012