永磁同步电机在RMxpert建模分析的问题
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。 ADJUSTABLE-SPEED PERMANENT MAGNET SYNCHRONOUS MOTOR DESIGNFile: 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
请各位专家多多指点，建议。 Maximum Line Induced Voltage (V): 19.6222，只有这么点能不大吗 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 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 不会接线就用软件自带的计算，不要乱改。
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