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Optimal design method for structural parameters of cylindrical linear motors

A technology of structural parameters and linear motors, applied in the manufacture of motor generators, electrical components, electromechanical devices, etc., can solve problems such as optimization difficulties and inaccurate calculations, achieve clear thinking, reduce the number of calculations, and avoid inaccurate calculations of centralized parameters accurate effect

Inactive Publication Date: 2009-10-28
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of inaccurate calculation and difficult optimization in the traditional structural parameter design method of cylindrical linear motors, and propose a method for optimal design of structural dimension parameters of cylindrical linear motors

Method used

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  • Optimal design method for structural parameters of cylindrical linear motors
  • Optimal design method for structural parameters of cylindrical linear motors
  • Optimal design method for structural parameters of cylindrical linear motors

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Embodiment

[0035] First determine the type of motor. According to the specific engineering requirements of this embodiment, three-phase windings are used, and single-phase single-layer windings are embedded in each slot. In order to make the motor run smoothly, the number of three-phase windings used should be an integer multiple of 6, and the number of slots is also an integer of 6. At the same time, the permanent magnet adopts radial magnetization and alternate distribution, so that the direction of the magnetic field is alternately distributed inside and outside along the running direction of the motor. Then, according to the actual engineering needs of this embodiment and combined with the finite element method, a brief analysis is made to determine the winding distribution of the linear motor. Figure 5 As shown, some parameters are shown in Table 2: the winding adopts full-pitch distributed winding, and the "Y" connection method is adopted. The phase order of the winding current in ...

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Abstract

The invention relates to an optimal design method for structural parameters of cylindrical linear motors, belongs to the field of electromechanical intellectualization, and is motor parameter optical design technology. The method comprises the following steps: under the condition of meeting a structural parameter restriction range, dynamically sampling the structural parameters; analyzing thrust and undulating values of the cylindrical linear motors with different structural parameters by a finite element analysis method; taking the structural parameters as input of a neural network and the thrust and the undulating values as output of the neural network, and fitting functional relations of the structural parameters, the thrust and the undulation by the neural network; and finally optimizing the structural parameters to be optimized by combining an intelligent optimization method to obtain satisfying thrust and undulation performance in unit volume of a motor. The method is easy for engineered application, and can avoid inaccurate concentrated parameter calculation caused by complex magnetic circuits of the motor, difficult parameter optimization caused by the intercoupling of the parameters and the like. The technology can be also used for optimal design of structural parameters of motors with any structure.

Description

technical field [0001] The invention relates to a structural parameter optimization design method of a cylindrical linear motor, belongs to the field of electromechanical intelligence, and is a motor parameter optimization design technology. Background technique [0002] There are three main calculation and analysis methods for motors: the magnetic circuit theory method with concentrated parameters, the electromagnetic field theory method with distributed parameters, and the finite element analysis method. The magnetic circuit theory method with concentrated parameters uses the equivalent magnetic circuit method to analyze, and considers the distributed parameters as a concentrated magnetic circuit model. The magnetic circuit theory method with concentrated parameters is simple and easy to calculate theoretically, but the non-uniform distribution of the motor magnetic field and the existence of magnetic flux leakage make the calculation error of this method relatively large....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K41/02H02K15/00
Inventor 陈杰潘峰王光辉窦丽华蔡涛白永强甘明刚张娟陈文颉邓方刘晓俏刘洋
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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