Permanent magnet synchronous motor finite time dynamic surface control method considering iron loss

A technology of dynamic surface control and permanent magnet synchronization, which is applied in motor control, motor generator control, AC motor control, etc.

Active Publication Date: 2020-06-16
QINGDAO UNIV
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  • Abstract
  • Description
  • Claims
  • 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 lo

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  • Permanent magnet synchronous motor finite time dynamic surface control method considering iron loss
  • Permanent magnet synchronous motor finite time dynamic surface control method considering iron loss
  • Permanent magnet synchronous motor finite time dynamic surface control method 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 permanent magnet synchronous motor position tracking control, and particularly discloses a permanent magnet synchronous motor finite time dynamic surface control method considering iron loss. Aiming at the problems of iron loss and input saturation existing in the permanent magnet synchronous motor, a dynamic surface technology is introduced into a traditional backstepping method to solve the problem of 'calculation complexity' in the calculation process, and meanwhile, a fuzzy logic system is used to approximate unknown nonlinear terms in a permanent magnet synchronous motor driving system. According to the method, through the finite time control technology, the system response speed is increased, and tracking errors are reduced; it can be guaranteed that the tracking errors of the system converge to a neighborhood which is small enough of an original point, and therefore, the response speed of the permanent magnet synchronous motor driving system is increased; and the method provided by the invention has good robustness and strong load disturbance resistance, and realizes an 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 ...

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Application Information

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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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