ElectricMachinery電機學（英漢雙語）

《ElectricMachinery電機學（英漢雙語）》是2018年機械工業出版社出版的圖書，作者是劉慧娟。

基本介紹

• 中文名：ElectricMachinery電機學（英漢雙語）
• 作者：劉慧娟
• ISBN：9787111452218
• 定價：45元
• 出版社：機械工業出版社
• 出版時間：2018年9月
• 裝幀：平裝
• 開本：16開

內容簡介

本書共分兩大部分，第 一部分為電機學的英文部分，第二部分為相應電機學的中文部分，兩部分內容基本一致。每部分包括6章，第1章為緒論；後面5章包括直流電機、變壓器、交流電機的共同理論、感應電機和同步電機。在直流電機與感應電機兩章中添加了電動機的機械特性、電動機的起動、制動和調速等“電力拖動”的內容。為加強學生對相關知識點的理解，各章中備有相應的例題，為便於學生學習，在每一節後附有相應的思考題，在每一章後附有本章內容小結和相應數量的習題。本書可作為高等學校電氣工程及其自動化、電氣信息工程專業和其他強弱電結合專業雙語教學的教材，亦可供相關專業技術人員參考使用。

圖書目錄

CONTENTS

PrefaceChapter 0Introduction1

01The role of electrical machines in our lives1

02Types of electrical machines2

03Materials used in internal structure of electrical machines2

04Magnetic circuits3

041Magnetic fields3

042Magnetic circuits5

043Magnetic behaviors of ferromagnetic materials10

044Energy losses in a ferromagnetic core10

05Related laws13

051Faradays law of electromagnetic induction13

052Production of induction force on a wire14Chapter 1DirectCurrent Machines15

11Introduction to DC machines15

111Construction of DC machines15

112Principles of DC generators18

113Principles of DC motors19

114The excitation of DC machines19

115The ratings of DC machines20

12Armature windings21

121Simplex lap windings23

122Simplex wave windings25

13Magnetic fields of DC machines26

131Magnetic field in noload condition27

132Magnetic field in loaded condition27

14Induced voltage and electromagnetic torque31

141Induced voltage31

142Electromagnetic torque32

15Equivalent circuits of DC machines34

151Equivalent circuits of DC generators34

152Equivalent circuits of DC motors36

16Power flow and losses in DC machines37

161Losses in DC machines38

162The powerflow of DC generators38

163The powerflow of DC motors39

17Operational characteristics of DC generators39

171Operational characteristics of separately excited DC generators40

172Operational characteristics of shunt DC generators43

173Operational characteristics of compounded DC generators45

〖〗目錄Electric Machinery電機學18Operational characteristics of DC motors47

181The separately excited DC motor and shunt DC motor47

182The operational characteristics of the series DC motor53

183The operational characteristics of the compound DC motor55

184Reversing the rotation direction of a DC motor56

19Speed control of shunt DC motors57

110Starting a DC motor61

111Braking a DC motor61

1111Dynamic braking62

1112Plugging63

112Commutation64

Summary66

Questions and problems68Chapter 2Transformers72

21Construction and ratings of transformers72

211Construction of transformers72

212Ratings of transformers73

22Analysis of single phase transformers in noload condition75

221Physical situation of transformers in noload condition75

222The noload current, flux and induced emf of a transformer76

223The equivalent circuit and phasor diagram of transformers in noload condition77

23Operation of transformers in loaded condition78

231Physical situation of transformers in loaded condition78

232The equivalent circuit and phasor diagram of a transformer in loaded condition79

24Determining parameters of transformers by tests82

241Opencircuit test82

242Shortcircuit test83

243The perunit system84

25Voltage regulation and efficiency of transformers88

251Terminal characteristic and voltage regulation88

252Efficiency89

26Threephase transformers91

261Magnetic circuit of threephase transformers91

262Connections of threephase transformers91

27Parallel operation of transformers94

28Special Transformers95

281Autotransformers96

282Instrument transformers97

Summary97

Questions and problems99Chapter 3AC Machine Fundamentals103

31Operation principles of the threephase synchronous generator103

32AC windings104

321The basic concept of AC windings104

322Threephase singlelayer lap winding106

323Threephase doublelayer lap winding107

33Induced Emf of AC winding108

331Emf of a conductor108

332Emf of a coil and pitch factor109

333Emf of coil group and breadth or distribution factor110

334Fundamental emf of a phase winding110

335Harmonic emf of a phase winding111

34Operation principles of the threephase induction motor112

35Mmf of an AC winding113

351Mmf of a singlephase winding113

352Mmf of a threephase winding117

Summary119

Questions and problems120Chapter 4Induction Machines122

41Construction and ratings of induction motors122

411Construction of induction motors122

412Operation modes of induction machines123

413Ratings of induction motors125

42Electromagnetic relations of an induction motor125

421Main flux and leakage flux of an induction motor125

422Electromagnetic relations of an induction motor126

43Equivalent circuit of an induction motor130

431Frequency conversion130

432Winding conversion132

433Equivalent circuit and phasor diagram133

434Analysis of induction motor when the load changed134

435Approximate equivalent circuit134

44Power and torque equation of an induction motor136

441Power equation136

442Torque equation137

443Electromagnetic torque137

45The pole and phase number of the cage rotor138

451The phase number of the cage rotor138

452Pole number of the cage rotor138

46Determining circuit model parameters139

461Noload test140

462Lockedrotor test141

47Operational characteristics of induction motors143

48Torque speed characteristics of induction motors144

49Starting the threephase induction motor148

491The starting methods of the threephase induction motors149

492Cage rotor induction motors with high starting torque151

410Speed control of induction motors153

4101Speed control by changing pole number153

4102Speed control by changing frequency154

4103Speed control by changing the stator voltage156

4104Speed control by changing rotor resistance156

4105Woundrotor induction motor cascade speed control156

Summary158

Questions and problems159Chapter 5Synchronous Machines163

51Construction, operation modes and ratings of a synchronous machine163

511Construction of a synchronous machine163

512Operation mode of a synchronous machine166

513Ratings of a synchronous machine167

52Operation of synchronous generators168

521Noload operation of synchronous generators168

522Loaded operation of synchronous generators170

53Voltage equation,phasordiagram and equivalent circuit of synchronous

generators173

531Voltage equation, phasordiagram and equivalent circuit of cylindrical rotor

synchronous generators174

532Voltage equation and phasordiagram of salientpole synchronous generators178

54Power and torque equation of synchronous generators181

55Operational characteristics of synchronous generators182

56Parallel operation of synchronous generators185

561The need to synchronize186

562Powerangle characteristics of salientpole synchronous generators188

563Active power regulation and static stability189

564Reactive power regulation and Vcurves193

57Synchronous motors195

571Voltage equation, phasor diagram and equivalent circuit of synchronous motors195

572Powerangle characteristic, power and torque equations of synchronous motors196

573Reactive power regulation196

574Starting synchronous motors198

Summary199

Questions and problems201

中文部分

緒論207

01電機在國民經濟中的作用207

02電機的主要類別208

03電機中所用的材料208

04磁路208

041磁場208

042磁路的概念210

043鐵磁材料的性質213

044鐵心損耗214

05相關的電磁定律215第1章直流電機217

11直流電機的基本結構、工作原理、勵磁方式和額定值217

111直流電機的基本結構217

112直流發電機的工作原理218

113直流電動機的工作原理218

114直流電機的勵磁方式219

115直流電機的銘牌數據219

12直流電機的電樞繞組220

121單疊繞組222

122單波繞組223

13直流電機的磁場223

131直流電機空載時的氣隙磁場224

132直流電機帶負載時的氣隙磁場和電樞反應224

14直流電機的感應電動勢和電磁轉矩226

141直流電機的感應電動勢226

142直流電機的電磁轉矩227

15直流電機的等效電路229

151直流發電機的等效電路229

152直流電動機的等效電路229

16直流電機的損耗與功率流程230

161直流電機內部的損耗230

162直流發電機的功率流程231

163直流電動機的功率流程231

17直流發電機的運行特性232

171他勵直流發電機的運行特性232

172並勵直流發電機的運行特性233

173復勵直流發電機的運行特性235

18直流電動機的運行特性235

181他勵和並勵直流電動機的運行特性236

182串勵直流電動機的運行特性241

183復勵直流電動機的運行特性242

184直流電動機旋轉方向的改變方式242

19並勵直流電動機的轉速調節243

110直流電動機的起動245

111直流電動機的制動245

1111能耗制動245

1112反接制動246

112直流電機的換向247

本章小結248

習題250第2章變壓器254

21變壓器的基本結構與額定值254

211變壓器的基本結構254

212額定值255

22變壓器的空載運行255

221空載運行時的物理過程255

222空載運行時的主要物理量256

223變壓器的空載等效電路和相量圖257

23變壓器的負載運行258

231負載運行的物理過程258

232變壓器的等效電路和相量圖259

24變壓器的參數測定261

241空載試驗261

242短路試驗261

243標麼值262

25變壓器的運行特性265

251外特性和電壓變化率265

252效率和效率特性266

26三相變壓器267

261三相變壓器的磁路系統267

262三相變壓器的聯結組267

27變壓器的並聯運行269

28自耦變壓器和儀用互感器270

281自耦變壓器270

282儀用互感器270

本章小結271

習題272第3章交流電機的共同理論276

31三相同步發電機的工作原理276

32交流繞組276

321交流繞組的基本概念277

322三相單層疊繞組277

323三相雙層疊繞組278

33交流繞組的感應電動勢279

331導體電動勢279

332線圈電動勢和節距因數279

333線圈組電動勢和分布因數280

334相繞組的基波電動勢281

335相繞組的諧波電動勢281

34三相感應電動機的工作原理283

35交流繞組的磁動勢283

351單相交流繞組的磁動勢——脈振磁動勢284

352三相交流繞組的合成磁動勢——旋轉磁動勢287

本章小結288

習題289第4章感應電機291

41感應電機的基本結構和額定值291

411感應電機的基本結構291

412感應電機的運行狀態292

413感應電動機的額定值292

42感應電動機內部的電磁關係293

421感應電動機的主磁通和漏磁通293

422感應電動機的電磁關係294

43感應電動機的等效電路296

431頻率歸算296

432繞組歸算297

433等效電路和相量圖298

434感應電動機負載變化時的物理過程298

435感應電動機的近似等效電路299

44感應電動機的功率方程和轉矩方程300

441功率方程300

442轉矩方程301

443電磁轉矩301

45籠型轉子繞組的相數和極數302

451籠型轉子的相數302

452籠型轉子的極數302

46感應電動機的參數測定303

461空載試驗303

462堵轉試驗303

47感應電動機的工作特性304

48感應電動機的機械特性305

49三相感應電動機的起動308

491三相感應電動機的起動方法308

492高起動轉矩的三相籠型感應電動機310

410三相感應電動機的調速312

4101變極調速312

4102變頻調速313

4103降低定子電壓調速314

4104轉子迴路串接電阻調速314

4105串級調速314

本章小結315

習題316第5章同步電機320

51同步電機的基本結構、運行狀態和額定值320

511同步電機的基本結構320

512同步電機的運行狀態321

513同步電機的額定值321

52同步發電機的空載和負載運行322

521同步發電機的空載運行322

522同步發電機的負載運行323

53同步發電機的電壓方程、相量圖和等效電路325

531隱極式同步發電機的電壓方程、相量圖和等效電路326

532凸極式同步發電機的電壓方程和相量圖327

54同步發電機的功率方程和轉矩方程330

55同步發電機的運行特性331

56同步發電機與電網的並聯運行334

561並聯運行的條件334

562凸極式同步發電機的功角特性335

563有功功率的調節和靜態穩定336

564無功功率的調節和V形曲線340

57同步電動機341

571電壓方程、相量圖和等效電路341

572功角特性、功率方程和轉矩方程341

573無功功率和功率因數的調節342

574同步電動機的起動343

本章小結344

習題345

參考文獻349