【正文】 is prepares for the electric machine design. The electric machine design is a plex process, needs to consider the factor, the determination size and the data are many. Therefore, must look at the question prehensive prehensively, and can act as circumstances permit, adopts the different solution in view of the special details. In this paper, synchronous motor electromagic design starting with the basic design method, bining theoretical knowledge began to design motor, developed three design options to design synchronous generator, a package of the selected data is calculated in accordance with procedures to a preliminary design motors, synchronous motor to meet the efficiency requirements, such as temperature, in the second program is a programme on the basis of reselect data to the synchronous motor to think of the use of the material savings, the final package is in the program 2 on the basis of the synchronous motor to achieve the best efficiency and temperature..In addition, regarding used AUTOCAD to draw up the graph also to make the outline. keywords: the theory of synchronous motor, the design ,CAD. 目錄 IV 目錄 摘要 ............................................................................................................................... II Abstract ........................................................................................................................ III 目錄 .............................................................................................................................. IV 緒論 ................................................................................................................................1 第一章 同步電動機的基本結(jié)構(gòu)與原理 ....................................................................2 同步電動機的基本結(jié)構(gòu) ......................................................................................2 同步電動機的工作原理 ......................................................................................2 同步電動機的勵磁方式 ......................................................................................3 第二章 同步電動機的運行原理 ................................................................................5 電樞反應(yīng) ..............................................................................................................5 同步電動機的功率和轉(zhuǎn)矩平衡關(guān)系 ..................................................................7 功角特性及功率調(diào)節(jié) ..........................................................................................8 同步電動機的起動 ............................................................................................10 第三章 同步電動機的變頻調(diào)速系統(tǒng) ........................................................................12 同步電動機調(diào)速系統(tǒng)的分類 ............................................................................14 同步電動機直接轉(zhuǎn)矩控制系統(tǒng) ........................................................................15 交流同步電機直接轉(zhuǎn)矩控制的數(shù)學模型 ...........................................15 直接轉(zhuǎn)矩控制的電壓空間矢量 ...........................................................17 定子磁鏈軌跡 .......................................................................................18 電磁轉(zhuǎn)矩控制 .......................................................................................19 直接轉(zhuǎn)矩控制系統(tǒng) ...............................................................................21 第四章 電機設(shè)計基本理論 ....................................................................................24 總體設(shè)計內(nèi)容 ....................................................................................................24 電磁設(shè)計 ............................................................................................................24 同步電動機的主要性能指標和額定數(shù)據(jù) ..........................................24 主要性能指標的計算及影響它們的因素 ..........................................25 氣隙對電機性能的影響 ......................................................................26 集膚效應(yīng) .及其對轉(zhuǎn)子參數(shù)的影響 .....................................................27 結(jié)構(gòu)設(shè)計 ............................................................................................................28 第五章 電磁設(shè)計方案計算 ........................................................................................29 數(shù)據(jù)對比 ............................................................................................................46 材料用量計算結(jié)果及分析 ...................................................................46 電機損耗和效率計算結(jié)果及分析 .......................................................47 電磁負荷計算結(jié)果及分析 ...................................................................47 電機參數(shù)計算結(jié)果及分析 ...................................................................48 結(jié)果分析 ............................................................................................................48 第六章 AUTO CAD 2020 繪圖 ................................................................................50 定子沖片圖 ........................................................................................................50 畫轉(zhuǎn)子軸相圖 ....................................................................................................51 畫繞線圖 ............................................................................................................52 第七章 總結(jié) ................................................................................................................54 參考文獻（ References） ............................................................................................56 目錄 V 致 謝 ..........................................................................................................................57 緒論 1 緒論 同步電動機是一種常用的交流電動機。因此，同步電動機常用于工礦企業(yè)中要求恒轉(zhuǎn)速運行的大、中型機械設(shè)備的驅(qū)動，以便改善電網(wǎng)的功率因數(shù)同步電動機與電力電子技術(shù)相結(jié)合構(gòu)成同步電動機調(diào)速系統(tǒng)，使同步電動機的應(yīng)用場合更為廣泛，如艦船電力推進系統(tǒng)、大型軋鋼系統(tǒng)等。按結(jié)構(gòu)不同， 可分為隱極同步電機和凸極同步電機兩大類。其定子鐵心和繞組結(jié)構(gòu)與感應(yīng)電動機相同，當同步電動機的轉(zhuǎn)速較低時，極數(shù)也將較多，這時，由于定子圓周所能開出的槽數(shù)有限，定子繞組常采用分數(shù)槽繞組。轉(zhuǎn)子鐵心和勵磁繞組共同構(gòu)成了主磁極，勵磁繞組中通入直流勵磁電流就產(chǎn)生了主極磁場。按照轉(zhuǎn)子主磁極形狀不同，同步電動機又可分為隱極 式和凸極式兩種轉(zhuǎn)子行