A chaotic synchronous control method for permanent magnet synchronous motor

一种永磁同步电机、混沌同步的技术，应用在控制目的的模型/仿真等方向，能够解决没有设计控制器等问题

Active Publication Date: 2020-10-02
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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  • A chaotic synchronous control method for permanent magnet synchronous motor
  • A chaotic synchronous control method for permanent magnet synchronous motor
  • A chaotic synchronous control method for permanent magnet synchronous motor

Examples

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, σ, γ, ...

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Abstract

The invention provides a chaotic synchronous controller aiming at the research direction of chaotic synchronization of a permanent magnet synchronous motor. The permanent magnet synchronous motor is used as a strong-coupling, nonlinear and multivariable system. when a chaotic phenomenon occurs, the main characteristic of the system is that with the change of motor performance parameters, the torque and the rotating speed of the system are unstable, the control performance is obviously worsened, a series of harmful effects, such as electromagnetic noise and the like, on system control occur, and then a chaotic inhibition problem occurs. From another aspect, a chaotic behavior generated by the motor is very beneficial in some specific occasions, such as the aspects of grinding and stirring of raw materials, which generates a chaotic inverse control problem. Therefore, the innovation of a chaotic synchronous control method for the permanent magnet synchronous motor is very urgent and significant.

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 Patents(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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