Dynamic response active control method and device for brushless double-electromechanical-port motor

Abstract

The invention discloses a dynamic response active control method and device for a brushless double-electromechanical-port motor, and belongs to the field of AC motors and drive control. According to the method, double three-phase windings are used for supplying power to generate a magnetic field with two pole pairs, which respectively act on a magnetic gear MGM and a permanent magnet synchronous motor PMSM part, thereby achieving the active control over dynamic response of an outer rotor driving shaft of a brushless double-electromechanical-port motor under current closed-loop tracking. Specifically, on the basis of a few-pole magnetic field torque prediction method, deadbeat compensation control over the outer rotor driving shaft is achieved when an inner rotor suddenly increases and decreases loads, and the system response is greatly enhanced; through a load torque observation method on the outer rotor driving shaft, the feedforward compensation control during sudden loading and sudden unloading on the outer rotor driving shaft is realized, and the system response is further enhanced. Control is simple and easy to achieve, system oscillation can be effectively restrained, systemresponse is improved, and the service life is prolonged.

Description

technical field [0001] The invention belongs to the field of AC motor and drive control, and more specifically relates to a dynamic response active control method and device for a brushless dual electromechanical port motor. Background technique [0002] The level of delivery vehicles is one of the important symbols of the development of civilization in human society. The electric drive system has many advantages such as flexible control, high energy efficiency, and low noise. However, due to the limitation of the development level of the device, the further improvement of the power density still needs to solve many technical problems. The internal combustion engine has ultra-high energy density, maturity and reliability, etc., and the internal combustion engine is still the main force of human vehicles. However, due to the increasingly severe environmental and energy problems, reducing emissions has become an important issue for all countries. The hybrid power system cleve...

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Problems solved by technology

[0017] In view of the above defects or improvement needs of the prior art, the present invention provides a dynamic response active control method and device for a brushless dual electromechanical port motor, the purpose of which is to solve the problem of the external rotor drive shaft of the existing brushless dual electromechanical port motor. Frequent changes in load speed and torque, technical problems of insufficient dynamic response

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