| abstract |
The invention relates to a motor oscillation suppression method in an urban rail permanent magnet traction drive system, specifically an active damping compensation method in the oscillation suppression, and specifically a control method for the permanent magnet assisted synchronous reluctance motor oscillation suppression, which solves the technical problems in the background art. question. The invention is based on the original vector control method of the permanent magnet auxiliary synchronous reluctance motor, and then adopts the voltage q-axis active damping compensation method, the voltage d-axis active damping compensation method, the current q-axis active damping compensation method, and the current d-axis active damping method. The compensation method, the torque active damping compensation method and the modulation variation method solve the technical problem of the DC side oscillation caused by the impedance mismatch of the urban rail permanent magnet traction system, and improve the stability of the urban rail permanent magnet traction system under the control of the original vector control method. It can realize the stability of the system without increasing the hardware cost of the system. |