【正文】 哈爾濱理工大學(xué)學(xué)士學(xué)位論文 I 內(nèi)置式 異步起動 永磁 同步電動機(jī)設(shè)計 摘要 隨著永磁材料工藝的進(jìn)步和電子電力技術(shù)的發(fā)展，永磁同步電動機(jī)逐漸克服技術(shù)難點(diǎn)，逐步占領(lǐng)市場。永磁同步電動機(jī)與異步電 動 機(jī) 相 比，有效率高、功率因數(shù) 高 、體積小、節(jié)能等優(yōu)勢。在當(dāng)今強(qiáng)調(diào)節(jié)約、綠色概念的社會，節(jié)能和節(jié)約材料的永磁同步電機(jī)已經(jīng)在國外蓬勃發(fā)展，而在國內(nèi)電機(jī)行業(yè)也以驚人的速度在發(fā)展。 本文 設(shè)計了一臺額定功率 15kW、額定轉(zhuǎn)速為 1500rpm 的永磁同步電動機(jī)。采用了高性能的釹鐵硼永磁材料提高電機(jī)的功率密度。主要進(jìn)行了電機(jī)的磁路計算、繞組計算、參數(shù)計算、損耗計算。 通過改變 電 動機(jī) 電樞鐵 心長徑、 磁鋼 片 厚度 、氣隙長度和定、轉(zhuǎn)子 槽配合方式 ，對比分析 了 電動機(jī)的性能， 對 電動機(jī)進(jìn)行優(yōu)化設(shè)計， 實現(xiàn) 小型化和高效節(jié)能 運(yùn)行的目的，并且降低了電動機(jī)的 成本。 利用基于有限元 Ansoft 軟件 進(jìn)行了電機(jī)參數(shù)的相關(guān)計算，與電機(jī)設(shè)計的傳統(tǒng)磁路法進(jìn)行了對比，分析了兩者之間的誤差以及誤差產(chǎn)生的原因，提高了電機(jī)設(shè)計的準(zhǔn)確性。 關(guān)鍵詞 永磁同步； 電磁計算 ；有限元仿真 哈爾濱理工大學(xué)學(xué)士學(xué)位論文 II Design of Internal Rotor Line Start Permanent Mag Synchronous Motor Abstract With advances in magic materials technology and electronic power technology development, technical difficulties are gradually being overe。 the market is gradually being occupied by permanent mag synchronous motor. Permanent mag synchronous motors pare to asynchronous motors, there are high efficiency, high power factor, small size, energysaving advantages. In today39。s emphasis on saving energy, with the concept of environment protection, energysaving materials, permanent mag synchronous motor has been flourishing in foreign countries, and in the national domestic, motor industry at an alarming rate in the development. Depended on the practical technical requirements, a high performance NTP permanent mag motor is designed. The rated speed is 1500rpm, and the rated power is 15kW. The magic circuit design, winding design, parameter calculation and loss calculation are carried on. The inductance parameter that impacts the control performance of the motor is calculated and simulated by Ansoft, and the result is pared to the conventional magic circuit calculation. Through the change of the length of length armature, the thickness of the silicon steel sheet, air gap length and the pole slot number, the motor design is optimized. The low cost, small volume and high efficiency motor is obtained. Keywords Permanent mag synchronous； Electromagic calculation。 FEM simulation 哈爾濱理工大學(xué)學(xué)士學(xué)位論文 III 目錄 摘要 .......................................................................................................................I Abstract ............................................................................................................... II 第 1 章 緒論 ........................................................................................................ 1 永磁同步電動機(jī)概述 ............................................................................... 1 永磁同步電動機(jī)特點(diǎn) ........................................................................ 1 存在問題 ............................................................................................ 2 發(fā)展趨勢 ............................................................................................ 2 電磁場有限元分析簡介 ........................................................................... 4 本文主要研究內(nèi)容 ................................................................................... 5 第 2 章 異步起動永磁同步電動機(jī)的基本原理 ................................................ 6 稀土永磁材料 ........................................................................................... 6 稀土鈷永磁材料 ................................................................................ 6 釹鐵硼永磁材料 ................................................................................ 6 基本結(jié)構(gòu) ................................................................................................... 7 定子結(jié)構(gòu) ............................................................................................ 7 轉(zhuǎn)子結(jié)構(gòu) ............................................................................................ 8 轉(zhuǎn)子磁路結(jié)構(gòu) .................................................................................... 8 工作原理 ................................................................................................. 11 本章小結(jié) ................................................................................................. 12 第 3 章 15kW 異步起動永磁同步電動機(jī)電磁計算 ....................................... 13 額定數(shù)據(jù)和技術(shù)要求 ............................................................................. 13 電磁計算程序 ......................................................................................... 14 主要尺寸 .......................................................................................... 14 永磁體計算 ...................................................................................... 15 定、轉(zhuǎn)子沖片 .................................................................................. 16 主要尺寸 .......................................................................................... 16 繞組計算 .......................................................................................... 18 磁路計算 .......................................................................................... 20 參數(shù)計算 .......................................................................................... 23 交軸磁化曲線 .................................................................................. 26 工作特性計算 .................................................................................. 26 起動性能計算 ................................................................................ 29 本章小結(jié) ................................................................................................. 32 哈爾濱理工大學(xué)學(xué)士學(xué)位論文 IV 第 4 章 永磁同步電動機(jī)的有限元仿真及方案分析 ...................................... 33 永磁同步電動機(jī)的有限元仿真 ............................................................. 33 空載仿真結(jié)果 .................................................................................. 35 負(fù)載仿真結(jié)果 .................................................................................. 38 仿真結(jié)果分析 ......................................................................................... 40 多方案分析 ........................................