本文關(guān)鍵詞： 永磁電機(jī) 游標(biāo)電機(jī) 高轉(zhuǎn)矩密度 定轉(zhuǎn)子雙永磁 混合磁材料 低速大轉(zhuǎn)矩　出處：《江蘇大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著直驅(qū)技術(shù)在農(nóng)業(yè)裝備驅(qū)動領(lǐng)域受到越來越多的關(guān)注,具有低速大轉(zhuǎn)矩能力的高性能電機(jī)成為國內(nèi)外學(xué)者關(guān)注的焦點(diǎn)。傳統(tǒng)的永磁游標(biāo)電機(jī)分為定子型和轉(zhuǎn)子型永磁游標(biāo)電機(jī)。定子型永磁游標(biāo)電機(jī)具有永磁體利用率不高的缺點(diǎn),轉(zhuǎn)子型永磁游標(biāo)電機(jī)具有發(fā)熱導(dǎo)致永磁體發(fā)生不可逆退磁的缺點(diǎn)。為改善原有永磁游標(biāo)電機(jī)的問題,本文提出三相高轉(zhuǎn)矩密度混合磁材料定轉(zhuǎn)子雙永磁游標(biāo)電機(jī),該電機(jī)在定子以及轉(zhuǎn)子上均表嵌有永磁體,且采用混合磁材料,不僅充分利用電機(jī)內(nèi)部的空間結(jié)構(gòu),而且提升永磁體利用率以及降低永磁體發(fā)生不可逆退磁的風(fēng)險。本文的研究內(nèi)容概括為以下幾點(diǎn):1.分析闡述磁場調(diào)制型磁齒輪的結(jié)構(gòu)特點(diǎn)以及工作原理,并對永磁游標(biāo)電機(jī)工作原理以及結(jié)構(gòu)特點(diǎn)作出敘述。通過對氣隙磁導(dǎo)進(jìn)行數(shù)學(xué)解析分析磁場調(diào)制原理,最后通過對永磁游標(biāo)電機(jī)模型的仿真結(jié)果對磁場調(diào)制原理進(jìn)行說明。2.對電機(jī)基本模型的重要參數(shù)選擇做出闡述,包括電機(jī)繞組類型、槽數(shù)選擇、繞組極數(shù)以及調(diào)制齒數(shù)的確定。3.提出新型高轉(zhuǎn)矩密度永磁游標(biāo)電機(jī)。在不影響調(diào)制效應(yīng)的基礎(chǔ)之上,該電機(jī)在定子以及轉(zhuǎn)子部分均表嵌有永磁體,定子以及轉(zhuǎn)子部分的虛齒均參與調(diào)制效應(yīng)。定子和轉(zhuǎn)子部分的永磁體產(chǎn)生的磁場均經(jīng)過調(diào)制齒調(diào)制。表嵌入定子部分的永磁體利用Halbach陣列的聚磁特性,該永磁體陣列能夠減少漏磁以提高永磁體利用率,并且提出在Halbach聚磁陣列的底部引入磁障。4.基于基本模型的研究,提出外定子高轉(zhuǎn)矩密度永磁游標(biāo)電機(jī),電機(jī)采用單層分?jǐn)?shù)槽集中繞組。對電機(jī)優(yōu)化過程作出詳細(xì)介紹,對永磁體充磁方向的確定、混合磁材料組合類型、永磁體厚度和槽口寬度等進(jìn)行優(yōu)化說明。5.利用軟件Maxwell和Simplorer對所設(shè)計樣機(jī)模型進(jìn)行聯(lián)合仿真分析,聯(lián)合仿真分析相比于Maxwell的仿真結(jié)果更貼合實(shí)際,利用聯(lián)合仿真的結(jié)果對電機(jī)性能做出初步驗(yàn)證。6.完成設(shè)計方案,制造樣機(jī)。搭建數(shù)字化實(shí)驗(yàn)平臺,利用實(shí)驗(yàn)室現(xiàn)有設(shè)備對電機(jī)主要性能進(jìn)行測試,通過實(shí)驗(yàn)結(jié)果驗(yàn)證理論仿真結(jié)果。
[Abstract]:With the development of direct-drive technology, more and more attention has been paid in the field of agricultural equipment driving. The high performance motor with low speed and large torque capability has become the focus of scholars at home and abroad. The traditional permanent magnet Vernier motor is divided into stator type and rotor type permanent magnet Vernier motor. Stator permanent magnet Vernier Motor has permanent magnet utilization ratio. Not too high. Rotor permanent magnet Vernier motor has the disadvantage of irreversible demagnetization caused by heating. In this paper, a three-phase high torque density hybrid magnetic material is proposed to predict the stator and rotor double permanent magnet Vernier motor. Permanent magnet is embedded in the stator and rotor of the motor, and mixed magnetic material is used. Not only make full use of the internal space structure of the motor. And improve the utilization ratio of permanent magnets and reduce the risk of irreversible demagnetization of permanent magnets. The research contents of this paper are summarized as follows: 1.The structure characteristics and working principle of magnetic gears with magnetic field modulation are analyzed. The working principle and structure characteristics of permanent magnet Vernier motor are described. The principle of magnetic field modulation is analyzed by mathematical analysis of air-gap magnetic conductance. Finally, through the simulation results of permanent magnet Vernier motor model, the principle of magnetic field modulation is explained. 2. The selection of important parameters of the basic model of the motor, including the type of motor winding, the selection of slot number. A novel high torque density permanent magnet Vernier motor is proposed. On the basis of no influence on modulation effect, permanent magnet is embedded in the stator and rotor parts of the motor. The magnetic fields generated by the permanent magnets of the stator and rotor are modulated by the modulated teeth. The permanent magnets embedded in the stator part use the Halbach array's special magnetic properties. Sex. The permanent magnet array can reduce magnetic flux leakage to improve the utilization rate of permanent magnet, and proposed the introduction of magnetic barrier at the bottom of the Halbach magnetic array. 4. Research based on the basic model. This paper presents a high torque density permanent magnet Vernier motor with a single-layer fractional slot winding. The optimization process of the motor is introduced in detail. The direction of magnetization of permanent magnet is determined and the combination type of mixed magnetic material is given. The thickness of permanent magnet and the width of slot are optimized. 5. The software Maxwell and Simplorer are used to simulate the prototype model. Compared with the simulation results of Maxwell, the joint simulation analysis is more practical, using the results of the joint simulation to make a preliminary verification of the performance of the motor .6. to complete the design. A digital experimental platform was built and the main performance of the motor was tested by using the existing equipment in the laboratory. The theoretical simulation results were verified by the experimental results.
【學(xué)位授予單位】：江蘇大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：S220.2

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