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Stepping motor anti-interference system based on T-S fuzzy sliding mode control

A technology of fuzzy sliding mode control and stepping motor, which is applied in the field of power system and can solve the problems that uncertain items cannot be sensitively dealt with

Active Publication Date: 2021-04-30
SHENYANG INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, PID control is widely used in stepping motors because of its simple structure, strong robustness, and high reliability, but it cannot respond sensitively to uncertain items in the system.

Method used

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  • Stepping motor anti-interference system based on T-S fuzzy sliding mode control
  • Stepping motor anti-interference system based on T-S fuzzy sliding mode control
  • Stepping motor anti-interference system based on T-S fuzzy sliding mode control

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Embodiment 1

[0132] In order to verify the effectiveness of the present invention based on the T-S model, the present embodiment is set up to include the above-mentioned T-S fuzzy sliding mode controller system simulation model, given system basic parameters: two-phase winding coil inductance L=12mh; two-phase winding coil resistance R= 4.1Ω; stepping motor torque coefficient K m =1.6N·m / A; stepping motor rotor teeth number N r =100; load moment of inertia J=561g·cm 2 ; Stepper motor viscous friction coefficient B = 0.0013N ms / rad; load torque T L =1N m, the fuzzy sliding mode system simulation result of the present embodiment is as follows image 3 shown.

[0133] The present invention can effectively aim at the interference in the system, adopts the T-S fuzzy model to convert a series of complex nonlinear systems with uncertain items into linear models, improves the approximation accuracy of the controlled object, and adds sliding mode control, adopts integral sliding The modulus fun...

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Abstract

The invention discloses a stepping motor anti-interference system based on TS fuzzy sliding mode control and belongs to the technical field of power systems. The method of the system comprises the following steps: 1, setting a model of a two-phase hybrid stepping motor under natural coordinates; 2, decoupling the stepping motor model under the natural coordinates: carrying out d-q synchronous rotation coordinate axis transformation on the model; 3, establishing a T-S fuzzy model of the two-phase hybrid stepping motor; 4, performing transformation and variable decomposition on the T-S fuzzy model, selecting a proper sliding mode surface, and establishing a proper sliding mode function to determine a sliding model; and 5, designing a sliding mode control law. On the basis of fuzzy control, sliding mode control is combined to improve the robustness of the control system and ensure the operation accuracy of the stepping motor.

Description

technical field [0001] The invention belongs to the technical field of electric power systems, in particular to an anti-interference system of a stepping motor based on T-S fuzzy sliding mode control. Background technique [0002] In recent years, with the rapid development of power system and new energy field, the research on control strategy and anti-interference system of stepper motor has increasingly become an important issue in the development of stepper motor technology. A stepper motor is a brushless DC motor controlled by an electric pulse signal. It is a synchronous motor whose speed is synchronized with the control pulse frequency within a certain frequency range. Each time a pulse signal is input, the rotor rotates an angle or moves forward one step, the output angular displacement or linear displacement is proportional to the number of input pulses, and the rotational speed is proportional to the pulse frequency. Because the stepper motor is more sensitive to t...

Claims

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Application Information

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IPC IPC(8): H02P8/14H02P21/00H02P21/05H02P21/20
CPCH02P8/14H02P21/0007H02P21/001H02P21/05H02P21/20H02P2205/05
Inventor 赵琰于思琪任书影孙晓东曾雅罗金鸣姜河王帅杰杜世鹏庄严王若曦魏莫杋姜铭坤周航胡宸嘉赵涛
Owner SHENYANG INST OF ENG
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