Dual-motor series connection open-phase fault-tolerant predictive direct torque control method
A technology of direct torque control and dual motors, which is applied in motor control, motor generator control, AC motor control, etc., and can solve problems such as the adverse effects of the rotating magnetic field of six-phase motors
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[0054] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.
[0055] like figure 1 As shown, the drive system of the dual-motor series-connected phase loss tolerance predictive direct torque control method in this implementation includes: a rectifier circuit, a filter capacitor, a six-phase inverter, a permanent magnet synchronous motor with a six-phase symmetrical winding biased at 60 degrees, and a three-phase Phase permanent magnet synchronous motor, six-phase winding current acquisition circuit, two motor rotor position angle acquisition circuits, isolated drive, central controller, man-machine interface, etc. A suitable DC power supply can also be used to provide the DC bus voltage of the six-phase inverter. The power tube in the inverter adopts IGBT or MOFET, and the central controller adopts DSP or single-chip microcomputer. The winding current acquisition circuit is formed by combining a H...
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