三相籠型感應(yīng)電動機電磁設(shè)計

1、 三相籠型感應(yīng)電動機設(shè)計及仿真 學(xué) 院： 姓 名： 學(xué) 號： 指 導(dǎo) 老 師： 日 期： 一 課程設(shè)計內(nèi)容：1 在查閱有關(guān)資料的基礎(chǔ)上，確定電機主要尺寸、槽配合，定、轉(zhuǎn)子槽形及槽形尺寸。2 確定定、轉(zhuǎn)子繞組方案。3 完成電機電磁設(shè)計計算方案。4 畫出定、轉(zhuǎn)子沖片圖。5完成說明書（16開，計算機打印或課程設(shè)計紙手寫，計算機打印需提供紙質(zhì)計算原稿）6.對已經(jīng)完成的電磁設(shè)計方案建立有限元模型，利用ANSOFT軟件進(jìn)行運行性能的仿真計算，給出性能分析圖表等。二 設(shè)計基本要求：1求每位同學(xué)獨立完成一種型號規(guī)格電機的全部電磁方案計算過程，并根據(jù)所算結(jié)果繪出定、轉(zhuǎn)子沖片圖。2要求計算準(zhǔn)確，繪出圖形正確、整潔

2、。3要求學(xué)生在設(shè)計過程中能正確查閱有關(guān)資料、圖表及公式。 題目2：Y132M2-6 額定數(shù)據(jù)與性能指標(biāo)1、電機型號Y132M2-6 2、額定功率 PN=5.5kW3、額定頻率fN =50Hz 4、額定電壓及接法UN=380 伏 1-5、極數(shù) 2p=6 6、絕緣等級 B7、力能指標(biāo)：效率 8、功率因數(shù)9、最大轉(zhuǎn)矩倍數(shù)起動性能：起動電流倍數(shù),起動轉(zhuǎn)矩倍數(shù)主要尺寸轉(zhuǎn)子外徑定子槽形采用斜肩圓底梨形槽：轉(zhuǎn)子采用斜肩平底槽：三 概述三相異步電機廣泛應(yīng)用于采礦、機械、冶金、油田等領(lǐng)域。三相異步電機在工業(yè)中起著重要的作用。與其他機器相比,它具有成本低、結(jié)構(gòu)簡單、易于制造等優(yōu)點。但它也有一些缺點,比如小的起動轉(zhuǎn)

3、矩,表現(xiàn)不佳的速度控制在輕載和低功率因數(shù)。Ansoft 作為世界領(lǐng)先的電磁有限元分析軟件， Maxwell 已廣泛應(yīng)于電氣設(shè)備行業(yè)，RMxprt作為Ansoft最重要的一個模塊，廣泛應(yīng)用在工程電磁場，它可以優(yōu)化前期項目的設(shè)計。然后我們可以生成一個合理的2 d / 3 d有限元分析模型?？勺詣蛹虞d幾何和自動定義的各個部分材料,給電動機的邊界條件時,勵磁電源等等。在本設(shè)計報告中,我們利用Ansoft Maxwell 進(jìn)行建模。詳細(xì)分析步驟和過程，根據(jù)給定的設(shè)計參數(shù)結(jié)合上課所學(xué)習(xí)的知識，在Ansoft Maxwell 14中進(jìn)行仿真和計算，來驗證電機設(shè)計的合理性。四 設(shè)計分析根據(jù)給定的設(shè)計數(shù)據(jù)，經(jīng)過

4、一系列的計算，為后續(xù)進(jìn)行仿真設(shè)計打下了基礎(chǔ)，三相異步電動機電機設(shè)計是個復(fù)雜的過程，需要考慮的因素、確定的尺寸和數(shù)據(jù)很多。與單相異步電動機相比，三相異步電動機運行性能好，并可節(jié)省各種材料。根據(jù)轉(zhuǎn)子結(jié)構(gòu)分類，可分為籠式和繞線式，本設(shè)計選擇的是籠型感應(yīng)電動機設(shè)計，其轉(zhuǎn)子的異步電動機結(jié)構(gòu)簡單、運行可靠、重量輕、價格便宜，得到了廣泛的應(yīng)用，其主要缺點是調(diào)速困難。三相感應(yīng)電動機作電動機運行時，轉(zhuǎn)子的轉(zhuǎn)速低于旋轉(zhuǎn)磁場的轉(zhuǎn)速，轉(zhuǎn)子繞組因與磁場間存在著相對運動而感生電動勢和電流，并與磁場相互作用產(chǎn)生電磁轉(zhuǎn)矩，實現(xiàn)能量變換。電磁設(shè)計主要的內(nèi)容是確定電機的電磁負(fù)荷及定子兩套繞組的極對數(shù)。仿真設(shè)計時需注意以下幾點：(

5、1) 負(fù)載的性質(zhì)明確負(fù)載需要恒功率調(diào)速或恒轉(zhuǎn)矩調(diào)速，或在整個調(diào)速范圍內(nèi)部分轉(zhuǎn)速區(qū)為恒功率、部分轉(zhuǎn)速區(qū)為恒轉(zhuǎn)矩。(2) 調(diào)速范圍確定電機的常用轉(zhuǎn)速區(qū)間和最大轉(zhuǎn)速區(qū)間，以便選擇合適的電機數(shù)據(jù)(3) 通風(fēng)冷卻系統(tǒng)在設(shè)計時應(yīng)兼顧電機各方面性能的要求，根據(jù)不同的情況采取不同的方法，整個電磁計算中的幾個主要部分包括：主要尺寸與氣隙的確定；定轉(zhuǎn)子繞組與沖片設(shè)計；工作性能的計算；起動性能的計算等。五 仿真設(shè)計 雙擊桌面的Maxwell 16.0，運行Maxwell 軟件，進(jìn)入如下界面，點擊菜單欄中的，新建電機設(shè)計圖1 新建電機設(shè)計點擊machine，設(shè)置電機參數(shù)如下圖2 設(shè)置電機參數(shù)設(shè)置定子slot參數(shù)如下:

6、圖3 定子槽型和參數(shù)雙擊圖中Stator 下的Slot，設(shè)置定子槽型參數(shù)圖4定子槽型參數(shù)雙擊圖中Stator 下的Winding，設(shè)置定子繞組圖5 定子繞組和參數(shù)設(shè)置雙擊圖中Rotor設(shè)置轉(zhuǎn)子參數(shù)圖6 轉(zhuǎn)子槽型和參數(shù)雙擊圖中Rotor下的Slot設(shè)置轉(zhuǎn)子槽型數(shù)據(jù)圖7 轉(zhuǎn)子槽型數(shù)據(jù)雙擊圖中Rotor下的Winding設(shè)置轉(zhuǎn)子繞組圖8轉(zhuǎn)子繞組設(shè)置 圖9 定、轉(zhuǎn)子沖片至此電機參數(shù)設(shè)置完畢選擇菜單欄中的RMxprtAnalysisSteupAdd Solution Setup設(shè)置求解器參數(shù)圖10 求解器參數(shù)設(shè)置求解器設(shè)置完畢，開始運行仿真，點擊工具欄中的運行Validate圖11 點擊仿真所有參數(shù)均設(shè)

7、置正確，可以運行仿真，點擊工具欄中的，運行Analyze All等待運行結(jié)束，查看仿真結(jié)果,如圖12.1-12.3所示：選擇菜單欄中RMxprtResults Solution DataPerformance圖12.1 查看運行結(jié)果圖12.2 Design sheets圖12.3 Curves (運行特性曲線)后處理，將RMxprt項目導(dǎo)入到Maxwell 2D 圖13 生成Maxwell 2D項目 圖14 生成3D項目六 仿真結(jié)果 Three-Phase Induction Motor Design File: Setup1.res GENERAL DATA Given Output Pow

8、er (kW):5.5Rated Voltage (V):380Winding Connection:WyeNumber of Poles:6Given Speed (rpm):1462Frequency (Hz):50Stray Loss (W):71.775 Frictional Loss (W):131.076 Windage Loss (W):30.751 Type of Load:Constant SpeedOperating Temperature (C):75 STATOR DATA Number of Stator Slots:36Outer Diameter of Stato

9、r (mm): 210Inner Diameter of Stator (mm): 148Type of Stator Slot:2Stator Slot hs0 (mm): 0.8 hs1 (mm): 0.952 hs2 (mm): 10.548 bs0 (mm): 3.5 bs1 (mm): 6.8 bs2 (mm): 8.8Top Tooth Width (mm): 6.42671Bottom Tooth Width (mm): 6.27296Length of Stator Core (mm): 140Stacking Factor of Stator Core:0.95Type of

10、 Steel:steel_1008Number of lamination sectors1Press board thickness (mm): 0Magnetic press boardNoNumber of Parallel Branches:1Type of Coils:11Coil Pitch:0Number of Conductors per Slot:19Number of Wires per Conductor:4Wire Diameter (mm):0.86Wire Wrap Thickness (mm):0.06Wedge Thickness (mm):0Slot Line

11、r Thickness (mm):0Layer Insulation (mm):0Slot Area (mm2):120.388Net Slot Area (mm2):112.685Slot Fill Factor (%):57.0852Limited Slot Fill Factor (%):75Wire Resistivity (ohm.mm2/m):0.0217Top Free Space in Slot (%):0Bottom Free Space in Slot (%):0Conductor Length Adjustment (mm): 0End Length Correction

12、 Factor1End Leakage Reactance Correction Factor1 ROTOR DATA Number of Rotor Slots:33Air Gap (mm): 0.35Inner Diameter of Rotor (mm): 48Type of Rotor Slot:3Rotor Slot hs0 (mm): 1 hs1 (mm): 1.58 hs2 (mm): 18.42 bs0 (mm): 1 bs1 (mm): 6.5 bs2 (mm): 2.6 rs (mm): 0Cast Rotor:YesHalf Slot:NoLength of Rotor

13、(mm): 140Stacking Factor of Rotor Core:0.95Type of Steel:steel_1008Skew Width:1End Length of Bar (mm): 0Height of End Ring (mm): 31Width of End Ring (mm): 13.5Resistivity of Rotor Bar at 75 Centigrade (ohm.mm2/m):0.15873Resistivity of Rotor Ring at 75 Centigrade (ohm.mm2/m):0.15873Magnetic Shaft:No

14、MATERIAL CONSUMPTIONArmature Copper Density (kg/m3): 8900Rotor Bar Material Density (kg/m3): 2700Rotor Ring Material Density (kg/m3): 2700Armature Core Steel Density (kg/m3): 7872Rotor Core Steel Density (kg/m3): 7872Armature Copper Weight (kg): 3.37533Rotor Bar Material Weight (kg): 1.13184Rotor Ri

15、ng Material Weight (kg): 0.811494Armature Core Steel Weight (kg): 13.7141Rotor Core Steel Weight (kg): 12.812Total Net Weight (kg): 31.8447Armature Core Steel Consumption (kg): 29.4887Rotor Core Steel Consumption (kg): 18.0115 RATED-LOAD OPERATION Stator Resistance (ohm):0.508125Stator Resistance at

16、 20C (ohm):0.417974Stator Leakage Reactance (ohm):0.324881Rotor Resistance (ohm):1.24075Rotor Resistance at 20C (ohm):1.02061Rotor Leakage Reactance (ohm):0.396957Resistance Corresponding to Iron-Core Loss (ohm):1.52666e+007Magnetizing Reactance (ohm):1.80947Stator Phase Current (A):141.362Current C

17、orresponding to Iron-Core Loss (A):1.30867e-005Magnetizing Current (A):110.413Rotor Phase Current (A):73.5934Copper Loss of Stator Winding (W):30462.1Copper Loss of Rotor Winding (W):20159.6Iron-Core Loss (W):0.00784373Frictional and Windage Loss (W):161.827Stray Loss (W):71.775Total Loss (W):50855.

18、3Input Mechanical Power (kW):63.9569Output Electrical Power (kW):13.1016Mechanical Shaft Torque (N.m):417.745Efficiency (%):20.4851Power Factor:0.141586Rated Slip:-0.462Rated Shaft Speed (rpm):1462Operation mode: generator NO-LOAD OPERATION No-Load Stator Resistance (ohm):0.508125No-Load Stator Leak

19、age Reactance (ohm):0.329726No-Load Rotor Resistance (ohm):1.23865No-Load Rotor Leakage Reactance (ohm):0.409937No-Load Stator Phase Current (A):99.7474No-Load Iron-Core Loss (W):0.00640152No-Load Input Power (W):15338.4No-Load Power Factor:0.23254No-Load Slip:0.00126475No-Load Shaft Speed (rpm):998

20、.735 BREAK-DOWN OPERATION Break-Down Slip:1Break-Down Torque (N.m):375.794Break-Down Torque Ratio:0.899577Break-Down Phase Current (A):143.733 LOCKED-ROTOR OPERATION Locked-Rotor Torque (N.m):375.794Locked-Rotor Phase Current (A):143.733Locked-Rotor Torque Ratio:-0.899577Locked-Rotor Current Ratio:1

21、.01677Locked-Rotor Stator Resistance (ohm):0.508125Locked-Rotor Stator Leakage Reactance (ohm):0.324738Locked-Rotor Rotor Resistance (ohm):1.24844Locked-Rotor Rotor Leakage Reactance (ohm):0.396071 DETAILED DATA AT RATED OPERATION Stator Slot Leakage Reactance (ohm):0.226211Stator End-Winding Leakag

22、e Reactance (ohm):0.0912937Stator Differential Leakage Reactance (ohm):0.00737612Rotor Slot Leakage Reactance (ohm):0.339147Rotor End-Winding Leakage Reactance (ohm):0.033844Rotor Differential Leakage Reactance (ohm):0.016482Skewing Leakage Reactance (ohm):0.00748217Stator Winding Factor:0.965926Sta

23、tor-Teeth Flux Density (Tesla):2.44751Rotor-Teeth Flux Density (Tesla):2.34519Stator-Yoke Flux Density (Tesla):2.14273Rotor-Yoke Flux Density (Tesla):1.17919Air-Gap Flux Density (Tesla):1.14309Stator-Teeth Ampere Turns (A.T):1678.68Rotor-Teeth Ampere Turns (A.T):2591.97Stator-Yoke Ampere Turns (A.T)

24、:647.83Rotor-Yoke Ampere Turns (A.T):7.84111Air-Gap Ampere Turns (A.T):427.765Correction Factor for Magnetic Circuit Length of Stator Yoke:0.1915Correction Factor for Magnetic Circuit Length of Rotor Yoke:0.7Saturation Factor for Teeth:10.9836Saturation Factor for Teeth & Yoke:12.5164Induced-Vol

25、tage Factor:0.910647Stator Current Density (A/mm2):60.8397Specific Electric Loading (A/mm):207.959Stator Thermal Load (A2/mm3):12652.2Rotor Bar Current Density (A/mm2):16.2385Rotor Ring Current Density (A/mm2):6.24831Half-Turn Length of Stator Winding (mm): 238.629 WINDING ARRANGEMENTThe 3-phase, 1-

26、layer winding can be arranged in 12 slots as below:AAZZBBXXCCYYAngle per slot (elec. degrees):30Phase-A axis (elec. degrees):105First slot center (elec. degrees):0 TRANSIENT FEA INPUT DATA For one phase of the Stator Winding: Number of Turns:114 Parallel Branches:1 Terminal Resistance (ohm):0.508125 End Leakage Inductance (H):0.000290597For Rotor End Ring Between Two Bars of One Side: Equivalent Ring Resistance (ohm):4.12711e-006 Equivalent Ring Inductance (H):6.56283e-0092D Equivalent Value: Equivalent Model Depth (mm):1