求助用Maxwell 11 三相电机不能计算

js110

大家好!
今天我用Maxwell 11软件 按hypo qu 版主的精华贴方法.我输入的三相电机参数却不能计算,附件是我输入的三相电机参数,请大家帮我看看是什么地方出了问题.
谢谢!

大长经

我帮你看看！

大长经

好几个地方都没输参数！




这是修该后的计算数据

GENERAL DATA
Given Output Power (kW): 1.1
Rated Voltage (V): 380
Winding Connection: Delta
Number of Poles: 2
Given Speed (rpm): 2850
Frequency (Hz): 50
Stray Loss (W): 22
Frictional Loss (W): 15
Wind Loss (W): 15
Type of Load: Constant Power
Operating Temperature (C): 75
     STATOR DATA
Number of Stator Slots: 24
Outer Diameter of Stator (mm):   128
Inner Diameter of Stator (mm):   65
Type of Stator Slot: 2
Dimension of Stator Slot
        hs0_stator (mm):   0.7
        hs1_stator (mm):   0.7
        hs2_stator (mm):   8.8
        bs0_stator (mm):   2.5
        bs1_stator (mm):   4.6
        bs2_stator (mm):   7
Top Tooth Width (mm):   4.28275
Bottom Tooth Width (mm):   4.20055
Number of lamination sectors 1
Press board thickness (mm):   0
Magnetic press board No
Number of Conductors per Slot: 70
Number of Parallel Branches: 1
Number of Wires per Conductor: 2
Type of Coils: 11
Coil Pitch: 0
Wire Diameter (mm):   0.53
Wire Wrap Thickness (mm):   0.04
Slot Insulation Thickness (mm):   0.3
Top Free Space in Slot (%): 0
Bottom Free Space in Slot (%): 0
Conductor Length Adjustment (mm):   5
End Length Correction Factor 1
Limited Slot Fill Factor (%): 75
     ROTOR DATA
Number of Rotor Slots: 28
Air Gap (mm):   0.4
Inner Diameter of Rotor (mm):   20.5
Type of Rotor Slot: 1
Dimension of Rotor Slot
        hr0_top (mm):   0.2
        hr01_top (mm):   0.2
        hr2_top (mm):   7
        br0_top (mm):   0.01
        br1_top (mm):   3.2
        br2_top (mm):   1.6
Cast Rotor: Yes
Half Slot: No
Skew Width: 1.78
End Length of Bar (mm):   0
Height of End Ring (mm):   8
Width of End Ring (mm):   10
Resistivity of Rotor Bar
  at 75 Centigrade (ohm.mm^2/m): 0.0434783
Resistivity of Rotor Ring
  at 75 Centigrade (ohm.mm^2/m): 0.0434783
     MATERIAL CONSUMPTION
Armature Copper Density (kg/m^3):   8900
Rotor Bar Material Density (kg/m^3):   8900
Rotor Ring Material Density (kg/m^3):   8900
Armature Core Steel Density (kg/m^3):   7820
Rotor Core Steel Density (kg/m^3):   7820
Armature Copper Weight (kg):   1.33412
Rotor Bar Material Weight (kg):   0.435134
Rotor Ring Material Weight (kg):   0.249628
Armature Core Steel Weight (kg):   4.61266
Rotor Core Steel Weight (kg):   1.36451
Total Net Weight (kg):   7.99606
Armature Core Steel Consumption (kg):   8.22699
Rotor Core Steel Consumption (kg):   1.97214
     RATED-LOAD OPERATION
Stator Resistance (ohm): 5.56929
Stator Leakage Reactance (ohm): 3.8029
Rotor Resistance (ohm): 9.34237
Rotor Leakage Reactance (ohm): 4.54257
Resistance Corresponding to
  Iron-Core Loss (ohm): 3654.21
Magnetizing Reactance (ohm): 65.3773
Stator Phase Current (A): 5.53057
Current Corresponding to
  Iron-Core Loss (A): 0.0963076
Magnetizing Current (A): 5.38303
Rotor Phase Current (A): 1.10403
Copper Loss of Stator Winding (W): 511.047
Copper Loss of Rotor Winding (W): 34.1615
Iron-Core Loss (W): 101.68
Frictional and Wind Loss (W): 31.3282
Stray Loss (W): 22
Total Loss (W): 700.217
Input Power (kW): 1.80022
Output Power (kW): 1.1
Mechanical Shaft Torque (N.m): 3.60715
Efficiency (%): 61.1038
Power Factor: 0.28204
Rated Slip: 0.0293107
Rated Shaft Speed (rpm): 2912.07
     NO-LOAD OPERATION
No-Load Stator Resistance (ohm): 5.56929
No-Load Stator Leakage Reactance (ohm): 3.8031
No-Load Rotor Resistance (ohm): 9.34234
No-Load Rotor Leakage Reactance (ohm): 5.14783
No-Load Stator Phase Current (A): 5.46697
No-Load Iron-Core Loss (W): 104.817
No-Load Input Power (W): 659.33
No-Load Power Factor: 0.102262
No-Load Slip: 0.000808621
No-Load Shaft Speed (rpm): 2997.57
     BREAK-DOWN OPERATION
Break-Down Slip: 1
Break-Down Torque (N.m): 47.8488
Break-Down Torque Ratio: 13.265
Break-Down Phase Current (A): 24.187
     LOCKED-ROTOR OPERATION
Locked-Rotor Torque (N.m): 47.8488
Locked-Rotor Phase Current (A): 24.187
Locked-Rotor Torque Ratio: 13.265
Locked-Rotor Current Ratio: 4.37333
Locked-Rotor Stator Resistance (ohm): 5.56929
Locked-Rotor Stator
  Leakage Reactance (ohm): 3.52917
Locked-Rotor Rotor Resistance (ohm): 9.3681
Locked-Rotor Rotor
  Leakage Reactance (ohm): 2.15244
     DETAILED DATA AT RATED OPERATION
Stator Slot Leakage Reactance (ohm): 1.60194
Stator End-Winding Leakage
  Reactance (ohm): 1.88431
Stator Differential Leakage
  Reactance (ohm): 0.316651
Rotor Slot Leakage Reactance (ohm): 3.39332
Rotor End-Winding Leakage
  Reactance (ohm): 0.414714
Rotor Differential Leakage
  Reactance (ohm): 0.300888
Skewing Leakage Reactance (ohm): 0.433747
Slot Fill Factor (%): 77.1687
Stator Winding Factor: 0.957662
Stator-Teeth Flux Density (Tesla): 2.26397
Rotor-Teeth Flux Density (Tesla): 2.27106
Stator-Yoke Flux Density (Tesla): 2.19423
Rotor-Yoke Flux Density (Tesla): 1.82799
Air-Gap Flux Density (Tesla): 1.05816
Stator-Teeth Ampere Turns (A.T): 474.771
Rotor-Teeth Ampere Turns (A.T): 430.544
Stator-Yoke Ampere Turns (A.T): 477.859
Rotor-Yoke Ampere Turns (A.T): 35.822
Air-Gap Ampere Turns (A.T): 424.367
Correction Factor for Magnetic
  Circuit Length of Stator Yoke: 0.12356
Correction Factor for Magnetic
  Circuit Length of Rotor Yoke: 0.144343
Saturation Factor for Teeth: 3.13333
Saturation Factor for Teeth & Yoke: 4.34379
Induced-Voltage Factor: 0.926126
Stator Current Density (A/mm^2): 12.5342
Specific Electric Loading (A/mm): 45.5005
Stator Thermal Load (A^2/mm^3): 570.314
Rotor Bar Current Density (A/mm^2): 2.90642
Rotor Ring Current Density (A/mm^2): 3.54114
Half-Turn Length of
  Stator Winding (mm):   202.22
     WINDING ARRANGEMENT
The 3-phase, 1-layer winding can be arranged in 24 slots as below:
AAAAZZZZBBBBXXXXCCCCYYYY
Average coil pitch is: 10
Angle per slot (elec. degrees): 15
Phase-A axis (elec. degrees): 112.5
First slot center (elec. degrees): 0


从上面的数据看好像有问题，你自己看看吧。功率因数只有0.28204

Project1.rar (23.22 KB, 下载次数: 3)

2010-5-13 08:35 上传

点击文件名下载附件

大长经

叠厚改成75,接线改成wye(星接）好多了。

js110

现在好了!非常干感谢!
            Three-Phase Induction Motor Design
                      File: Setup1.res
     GENERAL DATA
Given Output Power (kW): 1.1
Rated Voltage (V): 380
Winding Connection: Wye
Number of Poles: 2
Given Speed (rpm): 2850
Frequency (Hz): 50
Stray Loss (W): 22
Frictional Loss (W): 15
Wind Loss (W): 15
Type of Load: Constant Power
Operating Temperature (C): 75
     STATOR DATA
Number of Stator Slots: 24
Outer Diameter of Stator (mm):   128
Inner Diameter of Stator (mm):   65
Type of Stator Slot: 2
Dimension of Stator Slot
        hs0_stator (mm):   0.7
        hs1_stator (mm):   0.7
        hs2_stator (mm):   8.8
        bs0_stator (mm):   2.5
        bs1_stator (mm):   4.6
        bs2_stator (mm):   7
Top Tooth Width (mm):   4.28275
Bottom Tooth Width (mm):   4.20055
Number of lamination sectors 1
Press board thickness (mm):   0
Magnetic press board No
Number of Conductors per Slot: 70
Number of Parallel Branches: 1
Number of Wires per Conductor: 2
Type of Coils: 11
Coil Pitch: 0
Wire Diameter (mm):   0.53
Wire Wrap Thickness (mm):   0.04
Slot Insulation Thickness (mm):   0.3
Top Free Space in Slot (%): 0
Bottom Free Space in Slot (%): 0
Conductor Length Adjustment (mm):   5
End Length Correction Factor 1
Limited Slot Fill Factor (%): 75
     ROTOR DATA
Number of Rotor Slots: 28
Air Gap (mm):   0.4
Inner Diameter of Rotor (mm):   20.5
Type of Rotor Slot: 1
Dimension of Rotor Slot
        hr0_top (mm):   0.2
        hr01_top (mm):   0.2
        hr2_top (mm):   7
        br0_top (mm):   0.01
        br1_top (mm):   3.2
        br2_top (mm):   1.6
Cast Rotor: Yes
Half Slot: No
Skew Width: 1.78
End Length of Bar (mm):   0
Height of End Ring (mm):   8
Width of End Ring (mm):   10
Resistivity of Rotor Bar
  at 75 Centigrade (ohm.mm^2/m): 0.0434783
Resistivity of Rotor Ring
  at 75 Centigrade (ohm.mm^2/m): 0.0434783
     MATERIAL CONSUMPTION
Armature Copper Density (kg/m^3):   8900
Rotor Bar Material Density (kg/m^3):   8900
Rotor Ring Material Density (kg/m^3):   8900
Armature Core Steel Density (kg/m^3):   7820
Rotor Core Steel Density (kg/m^3):   7820
Armature Copper Weight (kg):   1.30113
Rotor Bar Material Weight (kg):   0.407938
Rotor Ring Material Weight (kg):   0.249628
Armature Core Steel Weight (kg):   4.32437
Rotor Core Steel Weight (kg):   1.27923
Total Net Weight (kg):   7.5623
Armature Core Steel Consumption (kg):   7.7128
Rotor Core Steel Consumption (kg):   1.84888
     RATED-LOAD OPERATION
Stator Resistance (ohm): 5.43159
Stator Leakage Reactance (ohm): 4.39674
Rotor Resistance (ohm): 9.04004
Rotor Leakage Reactance (ohm): 7.17676
Resistance Corresponding to
  Iron-Core Loss (ohm): 3701.47
Magnetizing Reactance (ohm): 205.99
Stator Phase Current (A): 2.37863
Current Corresponding to
  Iron-Core Loss (A): 0.0548513
Magnetizing Current (A): 0.985634
Rotor Phase Current (A): 2.04192
Copper Loss of Stator Winding (W): 92.1937
Copper Loss of Rotor Winding (W): 113.076
Iron-Core Loss (W): 33.4095
Frictional and Wind Loss (W): 27.484
Stray Loss (W): 22
Total Loss (W): 288.163
Input Power (kW): 1.38808
Output Power (kW): 1.09991
Mechanical Shaft Torque (N.m): 3.85229
Efficiency (%): 79.2401
Power Factor: 0.872578
Rated Slip: 0.0911552
Rated Shaft Speed (rpm): 2726.53
     NO-LOAD OPERATION
No-Load Stator Resistance (ohm): 5.43159
No-Load Stator Leakage Reactance (ohm): 4.39996
No-Load Rotor Resistance (ohm): 9.03984
No-Load Rotor Leakage Reactance (ohm): 19.967
No-Load Stator Phase Current (A): 1.04568
No-Load Iron-Core Loss (W): 37.173
No-Load Input Power (W): 110.271
No-Load Power Factor: 0.128254
No-Load Slip: 0.00218652
No-Load Shaft Speed (rpm): 2993.44
     BREAK-DOWN OPERATION
Break-Down Slip: 1
Break-Down Torque (N.m): 14.6972
Break-Down Torque Ratio: 3.81519
Break-Down Phase Current (A): 13.3425
     LOCKED-ROTOR OPERATION
Locked-Rotor Torque (N.m): 14.6972
Locked-Rotor Phase Current (A): 13.3425
Locked-Rotor Torque Ratio: 3.81519
Locked-Rotor Current Ratio: 5.60933
Locked-Rotor Stator Resistance (ohm): 5.43159
Locked-Rotor Stator
  Leakage Reactance (ohm): 4.24524
Locked-Rotor Rotor Resistance (ohm): 9.06393
Locked-Rotor Rotor
  Leakage Reactance (ohm): 3.87616
     DETAILED DATA AT RATED OPERATION
Stator Slot Leakage Reactance (ohm): 1.50795
Stator End-Winding Leakage
  Reactance (ohm): 1.88431
Stator Differential Leakage
  Reactance (ohm): 1.00447
Rotor Slot Leakage Reactance (ohm): 4.4303
Rotor End-Winding Leakage
  Reactance (ohm): 0.414714
Rotor Differential Leakage
  Reactance (ohm): 0.95447
Skewing Leakage Reactance (ohm): 1.37592
Slot Fill Factor (%): 77.1687
Stator Winding Factor: 0.957662
Stator-Teeth Flux Density (Tesla): 1.45122
Rotor-Teeth Flux Density (Tesla): 1.45576
Stator-Yoke Flux Density (Tesla): 1.274
Rotor-Yoke Flux Density (Tesla): 1.06136
Air-Gap Flux Density (Tesla): 0.67784
Stator-Teeth Ampere Turns (A.T): 16.4365
Rotor-Teeth Ampere Turns (A.T): 14.0996
Stator-Yoke Ampere Turns (A.T): 45.8534
Rotor-Yoke Ampere Turns (A.T): 3.34922
Air-Gap Ampere Turns (A.T): 271.843
Correction Factor for Magnetic
  Circuit Length of Stator Yoke: 0.650261
Correction Factor for Magnetic
  Circuit Length of Rotor Yoke: 0.419378
Saturation Factor for Teeth: 1.11233
Saturation Factor for Teeth & Yoke: 1.29333
Induced-Voltage Factor: 0.92542
Stator Current Density (A/mm^2): 5.39082
Specific Electric Loading (A/mm): 19.5692
Stator Thermal Load (A^2/mm^3): 105.494
Rotor Bar Current Density (A/mm^2): 5.37549
Rotor Ring Current Density (A/mm^2): 6.54942
Half-Turn Length of
  Stator Winding (mm):   197.22
     WINDING ARRANGEMENT
The 3-phase, 1-layer winding can be arranged in 24 slots as below:
AAAAZZZZBBBBXXXXCCCCYYYY
Average coil pitch is: 10
Angle per slot (elec. degrees): 15
Phase-A axis (elec. degrees): 112.5
First slot center (elec. degrees): 0

     TRANSIENT FEA INPUT DATA
For one phase of the Stator Winding:
  Number of Turns: 280
  Parallel Branches: 1
  Terminal Resistance (ohm): 5.43159
  End Leakage Inductance (H): 0.00599795
For Rotor End Ring Between Two Bars of One Side:
  Equivalent Ring Resistance (ohm): 3.40258e-006
  Equivalent Ring Inductance (H): 2.82367e-009
2D Equivalent Value:
  Equivalent Model Depth (mm): 75
  Equivalent Stator Stacking Factor: 0.95
  Equivalent Rotor Stacking Factor: 0.95
Estimated Rotor Inertial Moment (kg m^2): 0.000975654