永磁同步电机在RMxpert建模分析的问题

19924828786

请问各位电机专家，我是研一学生，还在学习RMxpert和Maxwell，想请问下我用RMxpert建模的时候，输出的空载电流是预算的200倍，和我的槽满率也超出了2倍的预算是什么的原因呢?谢谢各位专家的回答，萌新学徒十分感谢。

19924828786

ADJUSTABLE-SPEED PERMANENT MAGNET SYNCHRONOUS MOTOR DESIGN

                      File: Setup1.res


     GENERAL DATA

Rated Output Power (kW):        3.5
Rated Voltage (V):        220
Number of Poles:        8
Frequency (Hz):        133.333
Frictional Loss (W):        20.98
Windage Loss (W):        0
Rotor Position:        Inner
Type of Circuit:        Y3
Type of Source:        DC
Trigger Pulse Width in Elec. Degrees:        120
One-Transistor Voltage Drop (V):        0
One-Diode Voltage Drop (V):        0
Operating Temperature (C):        75


     STATOR DATA

Number of Stator Slots:        36
Outer Diameter of Stator (mm):          135
Inner Diameter of Stator (mm):          94

Type of Stator Slot:        2
Stator Slot       
            hs0 (mm):          0.8
            hs1 (mm):          0.635
            hs2 (mm):          8.665
            bs0 (mm):          2
            bs1 (mm):          4.2
            bs2 (mm):          5.7
Top Tooth Width (mm):          4.2569
Bottom Tooth Width (mm):          4.27302
Skew Width (Number of Slots):        0.5

Length of Stator Core (mm):          112
Stacking Factor of Stator Core:        0.95
Type of Steel:        DW310_35
Designed Wedge Thickness (mm):          5
Slot Insulation Thickness (mm):          0.3
Layer Insulation Thickness (mm):          0
End Length Adjustment (mm):          22
Number of Parallel Branches:        2
Number of Conductors per Slot:        12
Number of Layers:        1
Winding Type:        Editor
Average Coil Pitch:        4.33333
Number of Wires per Conductor:        2
Wire Diameter (mm):          0.75
Wire Wrap Thickness (mm):          0.06
Slot Area (mm^2):        59.219
Net Slot Area (mm^2):        27.4193
Limited Slot Fill Factor (%):        75.2
Stator Slot Fill Factor (%):        57.4282
Coil Half-Turn Length (mm):          209.634
Wire Resistivity (ohm.mm^2/m):        0.0217


     ROTOR DATA

Minimum Air Gap (mm):          4.5
Inner Diameter (mm):          40
Length of Rotor (mm):          112
Stacking Factor of Iron Core:        0.95
Type of Steel:        DW310_35
Polar Arc Radius (mm):          42.5
Mechanical Pole Embrace:        0.7
Electrical Pole Embrace:        0.700212
Max. Thickness of Magnet (mm):          3.6
Width of Magnet (mm):          23.0724
Type of Magnet:        N35UH
Type of Rotor:        2
Magnetic Shaft:        No


     PERMANENT MAGNET DATA

Residual Flux Density (Tesla):        1.25
Coercive Force (kA/m):        798
Maximum Energy Density (kJ/m^3):        249.375
Relative Recoil Permeability:        1.24655
Demagnetized Flux Density (Tesla):        0
Recoil Residual Flux Density (Tesla):        1.25
Recoil Coercive Force (kA/m):        798

     MATERIAL CONSUMPTION

Armature Wire Density (kg/m^3):          8900
Permanent Magnet Density (kg/m^3):          7800
Armature Core Steel Density (kg/m^3):          7650
Rotor Core Steel Density (kg/m^3):          7650

Armature Copper Weight (kg):          0.712159
Permanent Magnet Weight (kg):          0.588581
Armature Core Steel Weight (kg):          4.26696
Rotor Core Steel Weight (kg):          2.84662
Total Net Weight (kg):          8.41432

Armature Core Steel Consumption (kg):          11.3274
Rotor Core Steel Consumption (kg):          4.17365


     STEADY STATE PARAMETERS

Stator Winding Factor:        0.288675
D-Axis Reactive Inductance Lad (H):        9.95945e-06
Q-Axis Reactive Inductance Laq (H):        9.95945e-06
D-Axis Inductance L1+Lad (H):        0.000367627
Q-Axis Inductance L1+Laq (H):        0.000367627
Armature Leakage Inductance L1 (H):        0.000357667
  Slot Leakage Inductance Ls1 (H):        0.000154486
  End Leakage Inductance Le1 (H):        6.49521e-05
  Harmonic Leakage Inductance Ld1 (H):        0.00013823
Zero-Sequence Inductance L0 (H):        0.000357667
Armature Phase Resistance R1 (ohm):        0.185345
Armature Phase Resistance at 20C (ohm):        0.152461


     NO-LOAD MAGNETIC DATA

Stator-Teeth Flux Density (Tesla):        0.983744
Stator-Yoke Flux Density (Tesla):        0.745642
Rotor-Yoke Flux Density (Tesla):        0.335342
Air-Gap Flux Density (Tesla):        0.43124
Magnet Flux Density (Tesla):        0.521927

Stator-Teeth By-Pass Factor:        0.000184066
Stator-Yoke By-Pass Factor:        6.90863e-06
Rotor-Yoke By-Pass Factor:        6.88079e-06

Stator-Teeth Ampere Turns (A.T):        1.15867
Stator-Yoke Ampere Turns (A.T):        1.47655
Rotor-Yoke Ampere Turns (A.T):        0.309193
Air-Gap Ampere Turns (A.T):        1670.13
Magnet Ampere Turns (A.T):        -1673.29

Leakage-Flux Factor:        1
Correction Factor for Magnetic
  Circuit Length of Stator Yoke:        0.766596
Correction Factor for Magnetic
  Circuit Length of Rotor Yoke:        0.766596

No-Load DC Current (A):        164.983
No-Load Input Power (W):        36296.2
Cogging Torque (N.m):        2.68232e-11


     FULL-LOAD DATA

Maximum Line Induced Voltage (V):        19.6222
Input DC Current (A):        177.077
Root-Mean-Square Phase Current (A):        252.4
Armature Thermal Load (A^2/mm^3):        26368.3
Specific Electric Loading (A/mm):        184.614
Armature Current Density (A/mm^2):        142.829
Frictional and Windage Loss (W):        20.98
Iron-Core Loss (W):        12.8966
Armature Copper Loss (W):        35422.6
Transistor Loss (W):        0
Diode Loss (W):        0
Total Loss (W):        35456.5
Output Power (W):        3500.5
Input Power (W):        38957
Efficiency (%):        8.98555

Synchronous Speed (rpm):        2000
Rated Torque (N.m):        16.7136
Torque Angle (degree):        -27.285

Maximum Output Power (W):        6246.83
Torque Constant KT (Nm/A):        0.0949519


     WINDING ARRANGEMENT

Edited Winding Layout:
      Coil     Phase     Turns    SlotIn   SlotOut
    Coil_1         A        12         1         6
    Coil_2        -C        12         7        12
    Coil_3         B        12         4         9
    Coil_4         C        12         8        11
    Coil_5         A        12         2         5
    Coil_6        -C        12        16        21
    Coil_7         B        12        14        17
    Coil_8        -A        12        10        15
    Coil_9        -B        12        13        18

Periodic Multipliers:        2

Average coil pitch is:        4.33333

Angle per slot (elec. degrees):        40
Phase-A axis (elec. degrees):        100
First slot center (elec. degrees):        0

Note:
The winding is arranged in such a way that the machine rotates in the clockwise direction.

Sorry, the winding cannot be arranged symmetrically.

  The winding factors of each phase are:
    Phase A        0.288675
    Phase B        0.288675
    Phase C        0.367863

  The angles between two-phase winding axes are:
    Phase A & B        120
    Phase B & C        300
    Phase C & A        300

  If a sinusoidal rotating field links the winding,
  the fundamental induced-voltage components will be:
    Positive-sequence component        31.9078%
    Negative-sequence component        100%
    Zero-sequence component        100%


     TRANSIENT FEA INPUT DATA

For Armature Winding:
  Number of Turns:        72
  Parallel Branches:        2
  Terminal Resistance (ohm):        0.185345
  End Leakage Inductance (H):        6.49521e-05
2D Equivalent Value:
  Equivalent Model Depth (mm):        112
  Equivalent Stator Stacking Factor:        0.95
  Equivalent Rotor Stacking Factor:        0.95
  Equivalent Br (Tesla):        1.25
  Equivalent Hc (kA/m):        798

19924828786

请各位专家多多指点，建议。

土豆烧洋芋

Maximum Line Induced Voltage (V): 19.6222，  只有这么点能不大吗

19924828786

土豆烧洋芋 发表于 2020-10-20 07:43
Maximum Line Induced Voltage (V): 19.6222，  只有这么点能不大吗

请问这是什么问题造成的呢？非常感谢您的回答

土豆烧洋芋

19924828786 发表于 2020-10-20 09:24
请问这是什么问题造成的呢？非常感谢您的回答

你把匝数设置成0看一下

yluuu

不会接线就用软件自带的计算，不要乱改。