MAXWELL 中问题,请指教
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 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?
你好
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! 结果的确有些问题,建议检查你的输入和rmxprt模型吧
你好
嗯,也许我的软件有问题我会检查的
谢谢了 学习中,关注! 大家用的专业版还是学生版啊 顶顶......
顶顶顶...... 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。。。 我得等到什么 时候才能从小土豆,长成老土豆呀。。
回复 3楼 qqmotor 的帖子
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> 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。
页:
[1]