永磁电机RMXPRT的温升问题

冰原贵公子

用RMxprt模拟设计了一个永磁电机，设计分拆后，设计数据输出如下

         BRUSHLESS PERMANENT MAGNET DC MOTOR DESIGN
          File: d:/ansoft/elegance.pjt/elegance.res

     GENERAL DATA
Rated Output Power (kW): 1.5
Rated Voltage (V): 220
Number of Poles: 6
Given Rated Speed (rpm): 3000
Friction and Wind Loss (W): 12
Rotor Position: Inner
Type of Circuit: C2
Lead Angle of Trigger in Elec. Degrees: 0
Trigger Pulse Width in Elec. Degrees: 120
One-Transistor Voltage Drop (V): 2
One-Diode Voltage Drop (V): 2
Operating Temperature (C): 60
Maximum Current for CCC (A): 0
Minimum Current for CCC (A): 0

     STATOR DATA
Number of Stator Slots: 24
Outer Diameter of Stator (mm):   120
Inner Diameter of Stator (mm):   75
Type of Stator Slot: 2
Dimension of Stator Slot
            hs0 (mm):   0.5
            hs1 (mm):   1
            hs2 (mm):   8.2
            bs0 (mm):   2.5
            bs1 (mm):   5.6
            bs2 (mm):   7.6
Top Tooth Width (mm):   4.61018
Bottom Tooth Width (mm):   4.75693
Skew Width (Number of Slots) 1
Length of Stator Core (mm):   65
Stacking Factor of Stator Core: 0.95
Type of Steel: D23
Slot Insulation Thickness (mm):   0.3
End Length Adjustment (mm):   0
Number of Parallel Branches: 1
Number of Conductors per Slot: 60
Type of Coils: 21
Average Coil Pitch: 5
Number of Wires per Conductor: 1
Wire Diameter (mm):   0.8
Wire Wrap Thickness (mm):   0.09
Stator Slot Fill Factor (%): 73.8659
Coil Half-Turn Length (mm):   148.645

     ROTOR DATA
Minimum Air Gap (mm):   0.5
Inner Diameter (mm):   26
Length of Rotor (mm):   65
Stacking Factor of Iron Core: 0.95
Type of Steel: D23
Polar Arc Radius (mm):   37
Mechanical Pole Embrace: 0.7
Electrical Pole Embrace: 0.699806
Max. Thickness of Magnet (mm):   3.5
Width of Magnet (mm):   26.5192
Type of Magnet: xg196/96
Type of Rotor: 1

     PERMANENT MAGNET DATA
Residual Flux Density (Tesla): 0.96
Coercive Force (kA/m): 690
Maximum Energy Density (kJ/m^3): 183
Relative Recoil Permeability: 1
Demagnetized Flux Density (Tesla): 5.85938e-005
Recoil Residual Flux Density (Tesla): 0.867073
Recoil Coercive Force (kA/m): 690.015
     MATERIAL CONSUMPTION
Armature Copper Density (kg/m^3):   8900
Permanent Magnet Density (kg/m^3):   7800
Armature Core Steel Density (kg/m^3):   7800
Rotor Core Steel Density (kg/m^3):   7800
Armature Copper Weight (kg):   0.957574
Permanent Magnet Weight (kg):   0.275114
Armature Core Steel Weight (kg):   2.3704
Rotor Core Steel Weight (kg):   1.44241
Total Net Weight (kg):   5.0455
Armature Core Steel Consumption (kg):   5.43328
Rotor Core Steel Consumption (kg):   1.85361

     STEADY STATE PARAMETERS
Stator Winding Factor: 0.853553
D-Axis Reactive Inductance Lad (H): 0.00959714
Q-Axis Reactive Inductance Laq (H): 0.00959714
D-Axis Inductance L1+Lad(H): 0.0150475
Q-Axis Inductance L1+Laq(H): 0.0150475
Armature Leakage Inductance L1 (H): 0.00545037
Zero-Sequence Inductance L0 (H): 0
Armature Phase Resistance R1 (ohm): 4.39676
D-Axis Time Constant (s): 0.00218278
Q-Axis Time Constant (s): 0.00218278
Ideal Torque Constant KT (Nm/A): 0.850073
Ideal Back-EMF Constant KE (Vs/rad): 0.850073

     NO-LOAD MAGNETIC DATA
Stator-Teeth Flux Density (Tesla): 1.57078
Stator-Yoke Flux Density (Tesla): 0.997691
Rotor-Yoke Flux Density (Tesla): 0.499656
Air-Gap Flux Density (Tesla): 0.697447
Magnet Flux Density (Tesla): 0.733868
Stator-Teeth Ampere Turns (A.T): 31.4661
Stator-Yoke Ampere Turns (A.T): 7.28378
Rotor-Yoke Ampere Turns (A.T): 1.55619
Air-Gap Ampere Turns (A.T): 330.632
Magnet Ampere Turns (A.T): -371.014
Armature Reactive Ampere Turns
  at Start Operation (A.T): 3044.55
Leakage-Flux Factor: 1
Correction Factor for Magnetic
  Circuit Length of Stator Yoke: 0.665359
Correction Factor for Magnetic
  Circuit Length of Rotor Yoke: 0.809418
No-Load Speed (rpm): 2151.51
Cogging Torque (N.m): 2.87338e-013

     FULL-LOAD DATA
Average Input Current (A): 8.92866
Root-Mean-Square Armature Current (A): 6.72745
Armature Thermal Load (A^2/mm^3): 550.279
Specific Electric Loading (A/mm): 41.1152
Armature Current Density (A/mm^2): 13.3838
Friction and Wind Loss (W): 5.73368
Iron-Core Loss (W): 27.7244
Armature Copper Loss (W): 397.983
Transistor Loss (W): 29.5843
Diode Loss (W): 2.94341
Total Loss (W): 463.969
Output Power (W): 1500.34
Input Power (W): 1964.3
Efficiency (%): 76.38
Rated Speed (rpm): 1433.42
Rated Torque (N.m): 9.99508
Locked-Rotor Torque (N.m): 55.7586
Locked-Rotor Current (A): 64.879

     WINDING ARRANGEMENT
The 2-phase, 2-layer winding can be arranged in 8 slots as below:
AABBXXYY

Angle per slot (elec. degrees): 45
Phase-A axis (elec. degrees): 135
First slot center (elec. degrees): 0

     TRANSIENT FEA INPUT DATA
For Armature Winding:
  Number of Turns: 360
  Parallel Branches: 1
  Terminal Resistance (ohm): 4.39676
  End Leakage Inductance (H): 0.00138292
2D Equivalent Value:
  Equivalent Air-Gap Length (mm): 65
  Equivalent Stator Stacking Factor: 0.95
  Equivalent Rotor Stacking Factor: 0.95
  Equivalent Br (Tesla): 0.867073
  Equivalent Hc (kA/m): 690.015
Estimated Rotor Moment of Inertia (kg m^2): 0.00149257

因为是英文版的，好多量都看不懂具体含义
想请教大家一下，电机的温升是哪一类的哪一项啊？
还有就是，温升和设计输入时的哪些变量有关？
可请各位给予解答。。在这里小弟先谢过了！

y1949b

rm是计算不了电机的温升的

英文参数不会 ，可以参看  rm5.0有一本中文版  用户手册  在我发的索引贴中

温升和什么有关  ，这个你要看电机设计啊！   一般小电机  是通过热负荷来控制温升的  但这个和电机风路  冷却方式都有关！   这个是原理性的问题    你要看书和经验地！   温升的仿真计算  用ansys、flux都可以

b024324

那要如何在ePhysics下模擬線圈和定子溫升的問題呢

yangfei810902

可以使用ansys模拟温度，感觉很好用

电动无限

Armature Thermal Load (A^2/mm^3): 550.279
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如果有经验的话，通过这一项可以判断温升。

此电机如果有冷却的话（风冷）温升不会很高

没有风冷的情况下温升不低。