MAXWELL 中问题，请指教

qqmotor

在使用过程中，RMXPRT中的计算的转距好象一直不正确。
小数点后都3位了。
     NO-LOAD OPERATION        

Main Leakage Reactance (ohm):        32.6131
Aux. Leakage Reactance (ohm):        2.05795
Rotor Leakage Reactance (ohm):        29.9949
Magnetizing Reactance (ohm):        738.404

No-Load Stator Line Current (A):        0.543614

No-Load Iron-Core Loss (W):        3.64179
No-Load Input Power (W):        31.2471
No-Load Power Factor:        0.249914
No-Load Slip:        0.00252686
No-Load Shaft Speed (rpm):        2992.42

     BREAK-DOWN OPERATION        

Break-Down Slip:        0.18
Break-Down Torque (N.m):        0.365104
Break-Down Torque Ratio:        2.78365

     LOCKED-ROTOR OPERATION        

Locked-Rotor Torque (N.m):        0.428829
Locked-Rotor Line Current (A):        14.6256
Locked-Rotor Torque Ratio:        3.2695
Locked-Rotor Current Ratio:        27.3968

Locked-Rotor Main-Phase Current (A):        1.86586
Locked-Rotor Aux.-Phase Current (A):        12.8555
Phase Shift between Locked-Rotor Main        
  and Aux. Currents (degrees):        20.7197

     DETAILED DATA AT RATED OPERATION        

Main Slot Leakage Reactance (ohm):        4.8018
Main End-Winding Leakage       
  Reactance (ohm):        21.2756
Main Differential Leakage       
  Reactance (ohm):        7.22306

Aux. Slot Leakage Reactance (ohm):        0.214762
Aux. End-Winding Leakage       
  Reactance (ohm):        0.852421
Aux. Differential Leakage       
  Reactance (ohm):        1.09496

Rotor Slot Leakage Reactance (ohm):        8.18308
Rotor End-Winding Leakage       
  Reactance (ohm):        13.179
Rotor Differential Leakage       
  Reactance (ohm):        4.01115
Skewing Leakage Reactance (ohm):        5.92165

Main-Phase Winding Factor:        0.798629
Aux.-Phase Winding Factor:        0.904394

Stator-Teeth Flux Density (Tesla):        1.42587
Rotor-Teeth Flux Density (Tesla):        1.51619
Stator-Yoke Flux Density (Tesla):        1.42136
Rotor-Yoke Flux Density (Tesla):        1.01955
Air-Gap Flux Density (Tesla):        0.590871

Stator-Teeth Ampere Turns (A.T):        4.02394
Rotor-Teeth Ampere Turns (A.T):        7.68639
Stator-Yoke Ampere Turns (A.T):        18.4786
Rotor-Yoke Ampere Turns (A.T):        0.976104
Air-Gap Ampere Turns (A.T):        195.168

Correction Factor for Magnetic       
  Circuit Length of Stator Yoke:        0.515448
Correction Factor for Magnetic        
  Circuit Length of Rotor Yoke:        0.438288
Saturation Factor for Teeth:        1.06
Saturation Factor for Teeth & Yoke:        1.15968
Induced-Voltage Factor:        0.854019

Mean Half-Turn Length of       
  Main-Phase Winding (mm):          136.912
Mean Half-Turn Length of       
  Aux.-Phase Winding (mm):          138.06

Main Winding Current Density (A/mm^2):        4.70714
Aux. Winding Current Density (A/mm^2):        0
Specific Electric Loading (A/mm):        8.09474
Mean Stator Thermal Load (A^2/mm^3):        38.1031

        Fill-Factor    Thermal-Load
           (%)         (A^2/mm^3)
            Slot # 1        73.415         56.718         
            Slot # 2        73.415         56.718         
            Slot # 3        62.359         41.884         
            Slot # 4        57.283         35.194         
            Slot # 5        43.437         0.000         


     TRANSIENT FEA INPUT DATA        

For Main Winding:       
  Number of Turns:        1310
  Parallel Branches:        1
  Terminal Resistance (ohm):        68.6351
  End Leakage Inductance (H):        0.0677222
For Aux. Winding:       
  Number of Turns:        252
  Parallel Branches:        1
  Terminal Resistance (ohm):        15.6939
  End Leakage Inductance (H):        0.00271334
  Starting Capacitance (uF):        0
  Running Capacitance (uF):        0
  Switch Speed (rpm):        600
For Rotor End Ring Between Two Bars of One Side:       
  End Ring Resistance (ohm):        1.66E-06
  End Ring Leakage Inductance (H):        3.48E-09
  Skew Leakage Inductance (H):        1.54E-09
2D Equivalent Value:       
  Equivalent Air-Gap Length (mm):        25
  Equivalent Stator Stacking Factor:        0.97
  Equivalent Rotor Stacking Factor:        0.97
Estimated Rotor Moment of Inertia (kg m^2):        0.000166431

tmscdy

具体点嘛，哪里不对啊？电脑计算到小数点后3位，应该不奇怪啊？

qqmotor

1楼你好

上面这个数据是单相异步电动机上面的

LOCK TOQUE 比 MAX TOQUE  要大，
我还有些数据，LOCK TOQUE 特别小，几乎是0.0034之类的数据。

请指教！

tmscdy

结果的确有些问题，建议检查你的输入和rmxprt模型吧

qqmotor

嗯，也许我的软件有问题
我会检查的


谢谢了

jleb

学习中，关注！

fishel_i

大家用的专业版还是学生版啊

fishel_i

顶顶......
顶顶顶......

wangjiaoyan

怎么这么高深啊，我有好多使用问题还不会呢。。好强大的一个软件。。。

wangjiaoyan

我得等到什么 时候才能从小土豆，长成老土豆呀。。

wuhdli

单相电动机计算,确实有问题,1 类正弦绕组的启动计算不对,应该是软件的问题,看我的帖子.<maxwell.11.1 的大BUG>

s0452

请问：您用的是D 版的吧，我现在用正版12.0的。有时也会莫名其妙的出问题，这不足为奇。