直線永磁同步電機(jī)定位力的優(yōu)化設(shè)計(jì)

目錄

第一章 緒 論 1
1.1 研究背景 1
1.2直線電機(jī)的介紹和發(fā)展趨勢 1
1.3 直線永磁同步電機(jī)應(yīng)用前景 5
1.4直線永磁同步電機(jī)定位力分析的研究現(xiàn)狀 8
1.5 課題研究的意義和主要內(nèi)容 9
1.6 本章小結(jié) 11
第二章 直線永磁同步電機(jī)的定義及其工作原理 12
2.1 直線永磁同步電機(jī)的基本組成 12
2.2 直線永磁同步電機(jī)的工作原理 13
2.3直線永磁同步電機(jī)定位力分析 14
2.4本章小結(jié) 16
第三章 電機(jī)電磁場有限元分析及JMAG簡介 17
3.1  有限元法在電機(jī)電磁場中的應(yīng)用 17
3.2  JMAG簡介 17
3.4  本章小結(jié) 21
第四章 9槽6極和9槽8極直線永磁同步電機(jī)設(shè)計(jì)及有限元分析 22
4.1  9槽6極直線永磁同步電機(jī)的參數(shù)設(shè)計(jì)及定位力分析 22
4.2  9槽8極直線永磁同步電機(jī)的參數(shù)設(shè)計(jì)及定位力分析 23
4.3  9槽8極和9槽6極直線永磁同步電機(jī)定位力有限元對比分析 24
4.5  本章小結(jié) 25
第五章 不同參數(shù)下9槽8極直線永磁同步電機(jī)定位力分析 26
5.1齒形 26
5.2 邊齒位置 28
5.3 永磁體形狀 31
5.4本章小結(jié) 32
第六章 總結(jié)與展望 34
6.1 論文的主要工作 34
6.2 進(jìn)一步工作展望 34
致 謝 36
參考文獻(xiàn)： 37

直線永磁同步電機(jī)定位力的優(yōu)化設(shè)計(jì)
 
摘要   與旋轉(zhuǎn)電機(jī)類似，根據(jù)工作原理的差別，直線電機(jī)也存在著許多類型，在這其中應(yīng)用比較多的有直線同步電機(jī)與直線感應(yīng)電機(jī)。本文課題主要圍繞直線永磁同步電機(jī)的定位力優(yōu)化進(jìn)行研究。定位力作為永磁同步電機(jī)不可避免的特性，嚴(yán)重影響了整個(gè)直線驅(qū)動(dòng)系統(tǒng)的性能。因此，本文根據(jù)永磁直線電機(jī)的運(yùn)行原理，對永磁直線電機(jī)定位力的優(yōu)化設(shè)計(jì)進(jìn)行研究。主要對齒極配比、初級齒形狀、永磁體形狀以及邊齒位置四個(gè)方面展開研究，力圖尋找有效降低永磁直線電機(jī)定位力的方法。
定位力作為推力波動(dòng)的重要組成部分，在創(chuàng)建以齒槽效應(yīng)和端部效應(yīng)為參數(shù)的磁路分析模型的基礎(chǔ)上，利用有限元的方法對直線永磁同步電機(jī)(PMLSM) 進(jìn)行了二維建模，從而分析了對定位力大小影響的關(guān)鍵因素，得出合適的初級齒形狀、邊齒位置、齒極配比、永磁體形狀來有效減小定位力。通過有限元仿真，考慮初級的定位力的變化規(guī)律，并在此結(jié)果上，證明了結(jié)論的正確性。
本文設(shè)計(jì)了在不同參數(shù)下直線永磁同步電機(jī)設(shè)計(jì)方案，以優(yōu)化定位力，詳細(xì)的內(nèi)容如下：
首先，闡述了直線永磁同步電機(jī)的研究背景，國內(nèi)外研究狀況，然后介紹了直線電機(jī)的發(fā)展趨勢，直線永磁同步電機(jī)的應(yīng)用前景。
其次，介紹了直線永磁同步電機(jī)的定義、工作原理，對影響定位力主要因素進(jìn)行闡述。
最后，介紹有限元分析軟件JMAG，對直線永磁同步電機(jī)進(jìn)行有限元仿真分析，由直線永磁同步電機(jī)的特點(diǎn)，設(shè)計(jì)了優(yōu)化方案，并進(jìn)行了詳細(xì)的介紹。
關(guān)鍵詞：直線永磁同步電機(jī)，定位力，邊端效應(yīng)，齒槽效應(yīng)，有限元分析

Detent Force optimization for Permanent Magnet Linear Synchronous Motor

ABSTRACT
Similar with the rotating motor, according to the different working principle of linear motor, linear motor has many types, in which applications are more linear synchronous motor and linear induction motor. This paper focuses on the permanent magnet linear synchronous motor with cogging force optimization research. Cogging force as the characteristics of the permanent magnet synchronous motor inevitably, seriously affected the performance of the linear drive system. Therefore, in this paper, according to the operation principle of permanent magnet linear motor, to study the optimization design of permanent magnet linear motor cogging force. Mainly researches the tooth pole ratio, primary tooth shape, the shape of the permanent magnet and the additional tooth position four aspects, and tries to find effective methods to reduce the detent force of permanent magnet linear motor.
Cogging force as the main part of the thrust fluctuation, is an important sign of the permanent magnet linear synchronous motor. Based on magnetic circuit analysis model to create the cogging force and the end effect force as its parameter, the permanent magnet linear synchronous motor using the finite element method (PMLSM) of the two-dimensional modeling, which analyzes the key factors influence on the cogging force, the primary tooth shape, tooth position, tooth appropriate additional pole ratio, the shape of the permanent magnet to reduce the cogging force. Through the finite element simulation, changes to consider cogging force junior, and based on these results, proving the correctness of the conclusion.
This paper designed the different parameters of permanent magnet linear synchronous motor design, in order to optimize the cogging force,the specific contents are as follows:
Firstly, it elaborates the research background of the permanent magnet linear synchronous motor, research status at home and abroad, and then introduces the development trend of the linear motor and linear permanent magnet synchronous motor applications.
Secondly, introduces the definition, working principle of permanent magnet linear synchronous motor, the main factors that affect the cogging force.
Finally, the finite element analysis software JMAG, analysis of permanent magnet linear synchronous motor finite element simulation, combined with the characteristics of permanent magnet linear synchronous motor, design optimization, and makes a detailed introduction.

Key words: permanent magnet linear synchronous motor， detent force， end effect， slot effect， Finite Element Analysis