Rmxprt低速大转矩永磁电机反电动势低
求助各位大佬们，额定电压10kV，反电动势有效值应该5000多吧，但是结果只有2149.38V，频率20，匝数480，绕组系数0.933，算出来有效磁通是0.054，请问大佬们哪里出问题了Operation Type: Motor
Source Type: AC
Rated Output Power (kW): 800
Rated Power Factor: 0.9
Capacitive Power Factor: Yes
Frequency (Hz): 20
Rated Voltage (V): 10000
Load Type: Const Power
Rated Speed (rpm): 40
Operating Temperature (C): 120
STATOR DATA
Stator Core Type: SLOT_AC
Stator Position: Outer
Number of Poles: 60
Outer Diameter of Stator (mm): 2300
Inner Diameter of Stator (mm): 1970
Length of Stator Core (mm): 600
Stacking Factor of Stator Core: 0.95
Steel Type of Stator: DW465_50
Number of Stator Slots: 72
Type of Stator Slot: 6
Stator Slot
hs0 (mm): 1.5
hs1 (mm): 4.5
hs2 (mm): 104
bs1 (mm): 40
bs2 (mm): 34
Top Tooth Width (mm): 51.9498
Bottom Tooth Width (mm): 61.546
STATOR WINDING DATA
Number of Phases: 3
Winding Connection: Y3
Number of Parallel Branches: 1
Number of Layers: 2
Winding Type: Whole Coiled
Coil Pitch: 1
Winding Factor: 0.933013
Number of Conductors per Slot: 40
Number of Wires per Conductor: 1
Maximum Possible Wires per Coil Side: 21
in width direction 3
in thickness direction 7
Wire Width (mm): 10.4
Wire Thickness (mm): 6.54
Wire Wrap Thickness (mm): 0.5
Wire Direction in Slot: Horizontal
Coil Wrap (mm): 0.1
Maximum Coil Width (mm): 32.9
Maximum Coil Height (mm): 49.48
Real Coil Width (mm): 32.9
Real Coil Height (mm): 49.48
Bottom Insulation (mm): 0.1
Wedge Thickness (mm): 0.1
Slot Liner Thickness (mm): 0.15
Layer Insulation (mm): 2
Slot Area (mm^2): 3753.5
Slot Fill Factor (%): 90.673
Coil Half-Turn Length (mm): 681.335
End Length Adjustment (mm): 0
End-Coil Clearance (mm): 0
Conductor Type of Stator: copper
Conductor Resistivity at 75C (ohm.mm^2/m): 0.020797
ROTOR DATA
Rotor Core Type: PM_INTERIOR
Rotor Position: Inner
Number of Poles: 60
Outer Diameter of Rotor (mm): 1964
Inner Diameter of Rotor (mm): 1756
Length of Rotor Core (mm): 600
Stacking Factor of Rotor Core: 0.95
Steel Type of Rotor: DW465_50
Rotor Pole Type: 1
Rotor Pole Dimensions:
D1 (mm): 1958
O1 (mm): 0
O2 (mm): 3
B1 (mm): 15
Rib (mm): 3
HRib (mm): 0
Magnet Thickness (mm): 27
Magnet Width per Pole (mm): 90
Magnet Type: Ankey
Maximum Magnet Width per Pole (mm): 94.9069
SHAFT DATA
Magnetic Shaft: No
Friction Loss (W): 0
Windage Loss/Power (W): 0
Reference Speed (rpm): 40
PERMANENT MAGNET DATA
Residual Flux Density (Tesla): 1.262
Coercive Force (kA/m): 970
Maximum Energy Density (kJ/m^3): 306.035
Relative Recoil Permeability: 1.03536
Demagnetized Flux Density (Tesla): 0
Recoil Residual Flux Density (Tesla): 1.262
Recoil Coercive Force (kA/m): 970
MATERIAL CONSUMPTION
Stator Wire Density (kg/m^3): 8933
Stator Core Steel Density (kg/m^3): 7700
Rotor Magnet Density (kg/m^3): 7300
Rotor Core Steel Density (kg/m^3): 7700
Stator Copper Weight (kg): 1177.19
Stator Core Steel Weight (kg): 3671.19
Rotor Core Steel Weight (kg): 2007.57
Rotor Magnet Weight (kg): 638.604
Stator Net Weight (kg): 4848.38
Rotor Net Weight (kg): 2646.18
Stator Core Steel Consumption (kg): 9981.88
Rotor Core Steel Consumption (kg): 13296.5
UNSATURATED PARAMETERS
Stator Resistance R1 (ohm): 0.261931
Stator Resistance at 20C (ohm): 0.188147
Stator Leakage Inductance L1 (H): 0.0689396
Slot Leakage Inductance Ls1 (H): 0.0275624
End Leakage Inductance Le1 (H): 0.000162324
Spread Harmonic Inductance Ld1 (H): 0.0366211
Muture Slot Leakage Inductance Lsm (H): -0.00459374
Uniform Air-gap Magnetizing Inductance Lm (H): 0.0770928
D-axis Armature Reactive Inductance Lad (H): 0.0347808
Q-axis Armature Reactive Inductance Laq (H): 0.0519674
D-axis Armature synchronous Inductance Ld (H): 0.10372
Q-axis Armature synchronous Inductance Lq (H): 0.120907
NO-LOAD MAGNETIC DATA
Stator Tooth Flux Density (Tesla): 1.84882
Stator Yoke Flux Density (Tesla): 0.950728
Rotor Top-Tooth Flux Density (Tesla): 1.32878
Rotor Yoke Flux Density (Tesla): 0.778161
Magnet Flux Density (Tesla): 0.790022
Air-Gap Flux Density (Tesla): 1.13246
Stator Tooth Ampere Turns (A.T): 1138.66
Stator Yoke Ampere Turns (A.T): 7.9927
Rotor Top-Tooth Ampere Turns (A.T): 3.25428
Rotor Yoke Ampere Turns (A.T): 24.4525
Magnet Ampere Turns (A.T): -4897.42
Air-Gap Ampere Turns (A.T): 3726.25
Total Ampere Turn Drop (A.T): 3.1808
Saturation Factor: 1.31516
Correction Factor for Magnetic
Circuit Length of Stator Yoke: 1.20853
Correction Factor for Magnetic
Circuit Length of Rotor Yoke: 8.12597
FULL-LOAD ELECTRIC DATA
Root-Mean-Square Armature Current (A): 308.943
Armature Thermal Load (A^2/mm^3): 662.368
Specific Electric Loading (A/mm): 143.985
Armature Current Density (A/mm^2): 4.60027
Frictional and Windage Loss (W): 0
Iron-Core Loss (W): 6332.18
Armature Copper Loss (W): 75000.4
Transistor Loss (W): 0
Diode Loss (W): 0
Total Loss (W): 81332.6
Output Power (W): 799965
Input Power (W): 881297
Efficiency (%): 90.7713
Torque Angle (elec. degree): 20.544
Rated Speed (rpm): 40
Rated Torque (N.m): 190978
Fundamental RMS Phase Back-EMF (V): 2149.38
THD of Phase Back-EMF (%): 13.1742
TRANSIENT FEA INPUT DATA
For Stator Winding:
Number of Turns: 480
Parallel Branches: 1
Terminal Resistance (ohm): 0.261931
End Leakage Inductance (H): 0.000162324
2D Equivalent Value:
Equivalent Model Depth (mm): 600
Equivalent Stator Stacking Factor: 0.95
Equivalent Rotor Stacking Factor: 0.95
线圈匝数不够 sunsson 发表于 2025-12-18 13:20
线圈匝数不够
你好，我把匝数改成960之后，反电动势变成4298V，请问我只要继续加匝数直到反电动势达到5000多就可以吗 楼主你好， 也不能一味无脑增加圈数的， 你还得看下槽满率是否允许圈数的增加。 你原始设计槽满率都90%，改了匝数哪里还绕的下了。
看下磁铁的设计， 还有长度是否可以增加吧。 蓝海翊 发表于 2025-12-18 14:45
楼主你好， 也不能一味无脑增加圈数的， 你还得看下槽满率是否允许圈数的增加。 你原始设计槽满率都90%，改 ...
好的，十分感谢 飞天大猪 发表于 2025-12-18 13:36
你好，我把匝数改成960之后，反电动势变成4298V，请问我只要继续加匝数直到反电动势达到5000多就可以吗 ...
增加匝数可不是解决问题的唯一，还要兼顾很多，慢慢来吧
并联支路数改成1 18240002355 发表于 2025-12-23 14:04
并联支路数改成1
你好，并联支路数已经是1了
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