Active disturbance rejection passive control method of permanent-magnet synchronous motor

Abstract

The invention relates to a control method, in particular to an active disturbance rejection passive control method of a permanent-magnet synchronous motor. The active disturbance rejection passive control method comprises the following steps of allowing the characteristic of a motor closed-ring system to show passive mapping by output feedback, selecting different output functions and energy functions, and designing various different passive control methods. On the basis of ADRC theory, an ADRC rotational speed outer-ring regulator is designed; and by the method, the conflict between rapidnessand overshoot is fundamentally solved, the overshoot of a rotational speed can be reduced, the capability of resisting parameter perturbation and load disturbance is achieved, and accurate and rapidtracking of PMSM rotational speed can be ensured.

Description

technical field [0001] The invention relates to a control method, in particular to an active disturbance rejection passive control method for a permanent magnet synchronous motor. Background technique [0002] With the rapid development of microprocessor, power electronics technology and control theory, especially the advent of vector control technology, the speed regulation performance of AC motors has been greatly improved, and AC speed regulation has become the main speed regulation method. Induction motors, electric excitation synchronous motors and permanent magnet synchronous motors are commonly used in AC speed regulating motors. Among them, induction motors have disadvantages such as difficult control, low efficiency, and poor low-speed performance; The structure is complex, maintenance is difficult, and it is not suitable for use in harsh environments. With the emergence of new permanent magnet materials, permanent magnet synchronous motors have been valued and dev...

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: all states of the system are required to be observable, accurate dynamic models are required, the dependence on parameters is large, and the control law is complex

The disadvantage of the backstepping design method is that it cannot effectively track the rotor flux linkage, cannot compensate the electrical parameters, and has a large amount of calculation and poor real-time performance.