Support vector machine inverse system composite controller based on bearingless synchronous reluctance motor

Abstract

The invention relates to a support vector machine inverse system composite controller based on a bearingless synchronous reluctance motor. Two expandable current hysteresis loop PWM (Pulse-Width Modulation) inverters and a bearingless synchronous reluctance motor to be controlled are used as a whole to form a composite object to be controlled; a support vector machine inverse system controller is constructed according to a mathematical model of the object to be controlled and is connected in series before the composite object to be controlled of the bearingless synchronous reluctance motor so as to realize the decoupling control between the electromagnetic torque and the radial levitation force of the motor as well as the radial levitation force in two vertical directions; on the basis, a rotating speed closed loop linear controller and two rotor position closed loop linear controllers are respectively designed for the rotating speed of the motor and the rotor positions to form a linear closed loop controller; an finally the linear closed loop controller, the support vector machine inverse system controller and two expandable current hysteresis loop PWM inverters commonly form the support vector machine inverse system composite controller for dynamically decoupling control on the bearingless synchronous reluctance motor. The control speed, the control precision and the dynamic and static performances of the system can pass parameters for adjusting the linear closed loop controller.

Description

technical field The invention is a composite controller of a support vector machine inverse system for a bearingless synchronous reluctance motor, which is suitable for high-performance control of a bearingless synchronous reluctance motor. Bearingless synchronous reluctance motors have broad application prospects in special electric transmission fields such as machine tool electric spindles, turbomolecular pumps, centrifuges, compressors, flywheel energy storage, aerospace, etc., and belong to the technical field of electric transmission control equipment. Background technique The bearingless synchronous reluctance motor can meet the requirements of modern industry for high-speed, non-lubricated, friction-free, and maintenance-free high-performance drive motors. Compared with the traditional motor, the new motor has unparalleled advantages, and it also has many advantages compared with the motor supported by the magnetic bearing. Because the permanent magnet is omitted on t...

AI Technical Summary

Problems solved by technology

Neural network-based inverse control can enable the system to obtain high-performance decoupling control, but it also makes the control system more complex and increases the difficulty of system implementation.

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