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Tuning Method of Motor Speed ​​Loop Control Parameters Based on Fractional Sliding Mode Controller

A fractional-order sliding mode and parameter control technology, which is applied to control generators, control electromechanical brakes, control electromechanical transmissions, etc. The effect of reducing jitter and good anti-disturbance ability

Active Publication Date: 2022-04-01
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, the present invention provides a tuning method of the motor speed loop control parameters based on the fractional-order sliding mode controller, which solves the difficulty in tuning the parameters of the fractional-order sliding mode controller of the permanent magnet synchronous motor and the ineffective tuning effect. Ideal problem, providing a more optimal method for speed control of permanent magnet synchronous motors

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  • Tuning Method of Motor Speed ​​Loop Control Parameters Based on Fractional Sliding Mode Controller
  • Tuning Method of Motor Speed ​​Loop Control Parameters Based on Fractional Sliding Mode Controller
  • Tuning Method of Motor Speed ​​Loop Control Parameters Based on Fractional Sliding Mode Controller

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[0058] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined in the present application.

[0059] as attached figure 1 As shown, a method for tuning the motor speed loop control parameters based on the fractional-order sliding mode controller proposed in the present invention includes the following specific steps:

[0060] Step 1: Analyze the mathematical model formula of the permanent magnet synchronous motor, and collect the three-phase current i of the permanent magnet synchronous motor a , i b , i...

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Abstract

The invention provides a method for tuning the speed loop control parameters of a permanent magnet synchronous motor based on a fractional-order sliding mode controller, and mainly relates to the technical field of AC motor control. The invention discloses a method for setting control parameters of a permanent magnet synchronous motor speed loop based on a fractional-order sliding mode controller, including the construction of a fractional-order sliding mode control surface and an intelligent algorithm to optimize and tune the parameters of the fractional-order sliding mode controller. The present invention also designs a permanent magnet synchronous motor speed control device based on fractional-order sliding mode control. The speed control method and device of the permanent magnet synchronous motor based on the fractional-order sliding mode controller designed by the present invention can realize high-performance control of the motor in the case of load disturbance in the control system of the permanent magnet synchronous motor. The present invention replaces the traditional integer-order sliding mode controller with a fractional-order sliding mode controller, and adopts an improved particle swarm optimization algorithm to automatically optimize and tune the parameters of the fractional-order controller, which has good anti-disturbance ability, robustness and comparative High control precision.

Description

technical field [0001] The invention mainly relates to the technical field of control of an AC motor, in particular to a method for setting motor speed loop control parameters based on a fractional-order sliding mode controller. Background technique [0002] Permanent magnet synchronous motor has obvious advantages such as simple structure, reliable operation, small size, light weight and high efficiency, so it has been widely used in the field of electric transmission. With the continuous improvement of permanent magnet materials in recent years, the application of permanent magnet synchronous motors has become more extensive. The mathematical model of permanent magnet synchronous motors is multi-coupling nonlinear, so the establishment of its mathematical model is relatively complicated, and the requirements are also higher. [0003] The sliding mode controller has discontinuous characteristics in the control process, and the system structure will change when time changes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/18H02P21/00
CPCH02P21/18H02P21/0007
Inventor 宋保业许琳肖宜辉王东
Owner SHANDONG UNIV OF SCI & TECH
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