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Novel optimal design method for permanent magnet synchronous linear motor

A permanent magnet synchronous linear and optimization design technology, applied in multi-objective optimization, design optimization/simulation, calculation, etc., can solve the problems of PMLSM thrust fluctuation, and achieve the effect of reducing thrust fluctuation, improving overall situation and enhancing stability

Inactive Publication Date: 2016-10-26
ANHUI UNIVERSITY
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Problems solved by technology

[0005] The purpose of the present invention is to provide a novel optimization design method for permanent magnet synchronous linear motors to solve the above-mentioned problems in order to solve the relatively large defect of PMLSM thrust fluctuation in the prior art

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  • Novel optimal design method for permanent magnet synchronous linear motor
  • Novel optimal design method for permanent magnet synchronous linear motor
  • Novel optimal design method for permanent magnet synchronous linear motor

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Embodiment Construction

[0020] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:

[0021] 1. Finite element analysis:

[0022] (1) Prototype analysis: Refer to the seven-pole, twelve-slot fractional-slot double-secondary permanent magnet synchronous linear motor, follow the basic principles of motor design, and determine the spatial value range of the motor structural parameters, including the length of the permanent magnet, the width of the permanent magnet, the permanent magnet The height and the distance between the coils are respectively set as 40mm, 15mm, 3mm, 6.05mm, the pole distance τ, the air gap thickness δ, the coil length s, and the number of coil turns k are used as variables, and the value range is: 18.8mm≤τ≤ 19.4mm, 1.85mm≤δ≤2.4mm, 6.8mm≤s≤7.4mm, 150≤k≤210

[0023] (2) Finite element modeling: Select...

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Abstract

The invention relates to a novel optimal design method for a permanent magnet synchronous linear motor. The method comprises the steps that (A) a sample machine is analyzed, and main structural parameters which can influence motor performance are determined; (B) a machine learning algorithm -KNN algorithm is used for training and regression fitting of finite element analysis data; (C) a global-scope optimizing algorithm-gravity center neighborhood optimal algorithm is adopted for optimization of motor performance output parameters; and (D) a group of optimal motor structural parameters are solved reversely according to optimal values, and a sample machine is fabricated according to the motor structural parameters and then tested. The method provided by the invention has the beneficial effects that (1) stability, reliability and efficiency of motor running are enhanced; (2) computation results obtained by a finite element analysis method are accurate, and errors during the computation can be eliminated; (3) the KNN algorithm is used for the training fitting of the sample data generated by the finite element analysis, a non-parametric rapid computing model is established, and a foundation is provided for subsequent intelligent algorithm optimization; and (4) application of the gravity center neighborhood optimal algorithm has higher global superiority and is quicker and more accurate.

Description

technical field [0001] The invention relates to the field of permanent magnet synchronous linear motors, in particular to a novel optimization design method for permanent magnet synchronous linear motors. Background technique [0002] The permanent magnet synchronous linear motor (permanent magnet synchronous linear motor) has the advantages of simple mechanical structure, zero cogging effect, large thrust, low loss, high positioning accuracy, and high sensitivity. It can realize high-speed large-stroke motion and micron-level dynamic accuracy. Cutting force and non-cutting force CNC machine tools, such as 3D printers, laser engraving machines, etc. have been widely used. [0003] Due to the structural characteristics of PMSLM itself and the existence of edge effects, the motor will produce thrust fluctuations, which are one of the main reasons affecting the operation performance of PMSLMs. In high-precision CNC machine tools, thrust fluctuations will reduce the positioning ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23G06F30/367G06F2111/06
Inventor 宋俊材赵吉文董菲李乐盘真保王辉
Owner ANHUI UNIVERSITY
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