用RMXPORT 5.0计算的10KW永磁发电机PROJECE

wyg429

以下是用RMXPORT 5.0计算的10KW的永磁发电机的电磁计算单
请大家看看里面的参数有什么问题，
那个有问题，具体怎么调整？？

GENERAL DATA
Rated Output Power (kW): 10
Rated Power Factor: 0.9
Rated Voltage (V): 220
Number of Poles: 24
Frequency (Hz): 45
Friction and Wind Loss (W): 200
Rotor Position: Inner
Operating Temperature (C): 75
Type of Circuit: Y3
Operation Type: Individual Machine
Domain: Time

     STATOR DATA
Number of Stator Slots: 78
Outer Diameter of Stator (mm):   400
Inner Diameter of Stator (mm):   296
Type of Stator Slot: 3
Dimension of Stator Slot
            hs0 (mm):   0.5
            hs1 (mm):   0.8
            hs2 (mm):   38.2
            bs0 (mm):   3
            bs1 (mm):   5.6
            bs2 (mm):   7.6
            rs (mm):   0
Top Tooth Width (mm):   6.42666
Bottom Tooth Width (mm):   7.50381
Skew Width (Number of Slots): 1
Length of Stator Core (mm):   140
Stacking Factor of Stator Core: 0.95
Type of Steel: DW470-50HZ
Slot Insulation Thickness (mm):   0.3
End Length Adjustment (mm):   35
Number of Parallel Branches: 1
Number of Conductors per Slot: 18
Type of Coils: 20
Average Coil Pitch: 3
Number of Wires per Conductor: 7
Wire Diameter (mm):   1
Wire Wrap Thickness (mm):   0.11
Stator Slot Fill Factor (%): 69.6289
Coil Half-Turn Length (mm):   270.899

     ROTOR DATA
Minimum Air Gap (mm):   1
Inner Diameter (mm):   180
Length of Rotor (mm):   140
Stacking Factor of Iron Core: 0.95
Type of Steel: DW470-50HZ
Shaft Diameter (mm):   100
Mechanical Pole Embrace: 0.818091
Electrical Pole Embrace: 0.869551
Max. Thickness of Magnet (mm):   7
Width of Magnet (mm):   56
Type of Magnet: ndfeb
Type of Rotor: 4

     PERMANENT MAGNET DATA
Residual Flux Density (Tesla): 1.17
Coercive Force (kA/m): 860
Maximum Energy Density (kJ/m^3): 251.55
Relative Recoil Permeability: 1.08266
Demagnetized Flux Density (Tesla): 0.314138
Recoil Residual Flux Density (Tesla): 1.17
Recoil Coercive Force (kA/m): 860
     MATERIAL CONSUMPTION
Armature Copper Density (kg/m^3):   8900
Permanent Magnet Density (kg/m^3):   7800
Armature Core Steel Density (kg/m^3):   7700
Rotor Core Steel Density (kg/m^3):   7700
Armature Copper Weight (kg):   18.6102
Permanent Magnet Weight (kg):   10.2735
Armature Core Steel Weight (kg):   37.6865
Rotor Core Steel Weight (kg):   33.6558
Total Net Weight (kg):   100.226
Armature Core Steel Consumption (kg):   95.8512
Rotor Core Steel Consumption (kg):   70.4718

     STEADY STATE PARAMETERS
Stator Winding Factor: 0.947071
D-Axis Reactive Reactance Xad (ohm): 2.64589
Q-Axis Reactive Reactance Xaq (ohm): 3.402
D-Axis Reactance X1+Xad (ohm): 4.08888
Q-Axis Reactance X1+Xaq (ohm): 4.84499
Armature Leakage Reactance X1 (ohm): 1.44299
Zero-Sequence Reactance X0 (ohm): 1.28536
Armature Phase Resistance R1 (ohm): 0.500408

     NO-LOAD MAGNETIC DATA
Stator-Teeth Flux Density (Tesla): 2.14199
Stator-Yoke Flux Density (Tesla): 1.64305
Rotor-Yoke Flux Density (Tesla): 0.360318
Air-Gap Flux Density (Tesla): 1.1419
Magnet Flux Density (Tesla): 0.348415
Stator-Teeth Ampere Turns (A.T): 1068.73
Stator-Yoke Ampere Turns (A.T): 14.2331
Rotor-Yoke Ampere Turns (A.T): 0.528647
Air-Gap Ampere Turns (A.T): 1030.51
Magnet Ampere Turns (A.T): -2113.65
Leakage-Flux Factor: 1
Correction Factor for Magnetic
  Circuit Length of Stator Yoke: 0.175078
Correction Factor for Magnetic
  Circuit Length of Roor Yoke: 0.71015
Fundamental Induced Voltage (V): 361.81
THD of Induced Voltage (%): 0.516498
Cogging Torque (N.m): 5.02797e-011

     FULL-LOAD DATA
Load Resistance (ohm): 3.92018
Load Inductance (H): 0.00671502
Load Line Voltage (V): 225.574
RMS Line Current (A): 29.8987
RMS Phase Current (A): 29.8987
Armature Thermal Load (A^2/mm^3): 245.49
Specific Electric Loading (A/mm): 45.1408
Armature Current Density (A/mm^2): 5.43831
Friction and Wind Loss (W): 200
Iron-Core Loss (W): 163.534
Armature Copper Loss (W): 1341.97
Total Loss (W): 1705.5
Output Power (W): 10512.9
Input Power (W): 12218.4
Efficiency (%): 86.0415
Apparent Power (VA): 11681
Power Factor: 0.9
Synchronous Speed (rpm): 225
Rated Torque (N.m): 518.565
Short Circuit Current (A): 58.7142

     WINDING ARRANGEMENT

Angle per slot (elec. degrees): 55.3846
Phase-A axis (elec. degrees): 106.471
First slot center (elec. degrees): 0

Sorry, the winding cannot be arranged symmetrically.
  The winding factors of each phase are:
    Phase A 0.947071
    Phase B 0.947071
    Phase C 0.944408
  The angles between two-phase winding axes are:
    Phase A & B 119.365
    Phase B & C 120.318
    Phase C & A 120.318
  If a sinusoidal rotating field links the winding,
  the fundamental induced-voltage components will be:
    Positive-sequence component 100%
    Negative-sequence component 0.226969%
    Zero-sequence component 0.413592%

     TRANSIENT FEA INPUT DATA
For Armature Winding:
  Number of Turns: 234
  Parallel Branches: 1
  Terminal Resistance (ohm): 0.500408
  End Leakage Inductance (H): 0.00029378
2D Equivalent Value:
  Equivalent Air-Gap Length (mm): 140
  Equivalent Stator Stacking Factor: 0.95
  Equivalent Rotor Stacking Factor: 0.95
  Equivalent Br (Tesla): 1.17
  Equivalent Hc (kA/m): 860
Estimated Rotor Inertia (kg m^2): 0.800962

forlink

磁密较高，铁耗大，效率低
可以考虑加大定子内圆

fengxingyun

哦，功率因数很低啊！磁密感觉有问题

wyg429

是的
磁密是有点高
但是铁心内圆与槽数限制了我，
所以我一直想降低齿部磁密，一直降不下来，
如果加大铁心的话，整个电机就成了扁平电机了
所以现在最郁闷的就是这个问题
关键是槽数有点多了

see9999

先用现有的实例套用下，看理论计算的与实际的误差有多少，然后在参考设计10KW的，用5.0做永磁，个人认为误差比较大！看算例定子齿密太高了，增加迭长看有效果没！