Permanent magnet synchronous motor chaos synchronization control method

A permanent magnet synchronous motor and chaotic synchronization technology, which is applied in the direction of model/simulation for control purposes, and can solve problems such as no controller design.

Active Publication Date: 2019-09-20
QILU UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Furthermore, there is another problem, that is, many studies on chaotic synchronous controllers only consider the robustness of the overall synchronization of the system, and do not design the controller from the concept of limited time.

Method used

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  • Permanent magnet synchronous motor chaos synchronization control method
  • Permanent magnet synchronous motor chaos synchronization control method
  • Permanent magnet synchronous motor chaos synchronization control method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The chaotic synchronous control method of the permanent magnet synchronous motor involved in this embodiment specifically includes the following steps:

[0053] Step 1: Establish a PMSM chaotic mathematical model, as shown below

[0054]

[0055] The meanings of each parameter in the formula are: i d with i q is the direct-axis and quadrature-axis components of the stator current vector, ω is the angular frequency of the rotor, T l is the external torque, J is the moment of inertia, β is the viscous damping coefficient, R 1 is the stator winding, L d with L q is the d, q axis stator inductance, np is the number of pole pairs of the motor, is the permanent magnetic flux, u d with u q are the direct and quadrature components of the stator voltage vector.

[0056] Continuing processing of (1) has:

[0057]

[0058] Furthermore, only the uniform air gap is considered here:

[0059]

[0060]

[0061] where x 1 、x 2 、x 3 is the state variable, and σ ...

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Abstract

The invention belongs to the technical field of a permanent magnet synchronous motor and specifically relates to a permanent magnet synchronous motor chaos synchronization control method. The method is characterized by, to begin with, providing a PMSM chaos mathematical model, and analyzing system chaos behaviors; then, based on the Lyapunov stability theory and the active control principle, designing a finite time state feedback controller of a system; and realizing finite time chaos synchronization of a permanent magnet synchronous motor through a driving-response synchronization method. The method realizes finite time chaos synchronization of the permanent magnet synchronous motor and greatly improves control capability for the error system.

Description

technical field [0001] The invention belongs to the technical field of permanent magnet synchronous motors, and in particular relates to a chaotic synchronous control method for permanent magnet synchronous motors, specifically, within a limited time, the effect of two permanent magnet synchronous motor chaotic models with different initial values ​​on the controller Gradually achieve synchronization. Background technique [0002] In 1990, scholars Pecora and Carroll of the U.S. Naval Laboratory proposed a chaos synchronization control method, and first realized chaos synchronization in electronic circuits. What is chaos synchronization? In short, it is to control the chaotic system so that its trajectory gradually approaches Another chaotic system trajectory. With the development of electronic power technology and engineering control technology, chaos phenomenon has been widely found in servo systems such as permanent magnet synchronous motor PMSM, brushless DC motor, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/34
CPCH02P6/34
Inventor 张芳芳刘加勋舒明雷黄明明孙凯马凤英
Owner QILU UNIV OF TECH
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