A finite-time dynamic surface control method for permanent magnet synchronous motors considering iron loss

A technology of dynamic surface control and permanent magnet synchronization, applied in motor control, motor generator control, AC motor control, etc., to achieve the effect of avoiding computational complexity, avoiding safety problems, and strong anti-load disturbance ability

Active Publication Date: 2021-11-09
QINGDAO UNIV
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  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to propose a finite-time dynamic surface control method for permanent magnet synchronous motors considering iron loss, to solve the adverse effects of iron loss and input saturation on the system, and to ensure the tracking control effect of permanent magnet synchronous motors

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  • A finite-time dynamic surface control method for permanent magnet synchronous motors considering iron loss
  • A finite-time dynamic surface control method for permanent magnet synchronous motors considering iron loss
  • A finite-time dynamic surface control method for permanent magnet synchronous motors considering iron loss

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Embodiment Construction

[0123] The basic idea of ​​the present invention is: by combining the self-adaptive backstepping method and the dynamic surface technology and applying it to the position tracking control of the permanent magnet synchronous motor, to solve the uncertain parameters and external load changes in the permanent magnet synchronous motor drive system problem and the "computational complexity" problem in the traditional backstepping method; the adverse effects of iron loss and input saturation on the permanent magnet synchronous motor are considered; the limited time control technology is introduced to make the tracking error within a limited time Converging to a very small field of the origin, the control method of the present invention has higher engineering practice value and obtains ideal tracking effect.

[0124] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0125] combine figure 1 As shown, a finit...

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Abstract

The invention belongs to the technical field of position tracking control of permanent magnet synchronous motors, and specifically discloses a limited-time dynamic surface control method of permanent magnet synchronous motors considering iron loss. The method of the present invention aims at the problems of iron loss and input saturation in the permanent magnet synchronous motor, introduces the dynamic surface technology into the traditional backstepping method to solve the problem of "computational complexity" in the calculation process, and uses the fuzzy logic system to approximate the permanent Unknown nonlinear items in the magnetic synchronous motor drive system; the inventive method adopts the finite time control technology to accelerate the system response speed and reduce the tracking error, and the inventive method can ensure that the tracking error of the system converges in a sufficiently small neighborhood of the origin , thus improving the response speed of the permanent magnet synchronous motor drive system. The method of the invention has better robustness, stronger ability to resist load disturbance, and realizes ideal control effect.

Description

technical field [0001] The invention belongs to the technical field of position tracking control of permanent magnet synchronous motors, and in particular relates to a limited-time dynamic surface control method of permanent magnet synchronous motors considering iron loss. Background technique [0002] Permanent magnet synchronous motors have been widely used in industry, manufacturing and other fields due to their simple structure, small size, high efficiency, and high power factor. However, the permanent magnet synchronous motor has the characteristics of multi-variable, highly nonlinear and strong coupling, so how to overcome the above control difficulties to achieve accurate and effective control of the permanent magnet synchronous motor is of great significance. [0003] At present, researchers have proposed many control methods for nonlinear systems, such as backstepping control, direct torque control, Hamiltonian control, and sliding mode control. However, permanent ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/00H02P21/14H02P21/18H02P21/20H02P25/022
CPCH02P21/00H02P21/14H02P25/022H02P2207/05H02P21/18H02P21/20
Inventor 于金鹏马玉梅张肖平田新诚刘占杰赵恩亮雷启鑫
Owner QINGDAO UNIV
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