RMxprt BLDC电机定子接线方式可以选择吗？星三角选择？
如题，如果可以在哪里设置？我自己仿真一个例子总是不正确？求大神帮忙？还有我的maxwell16。0分布图不显示是什么原因，有知道的吗？跟设置有关吗？谢谢 把问题截图发出来，能更有效地解决问题。 time=-1,改成0，或者其他时刻看看。
论坛里有基础的maxwellBLDC视频，很容易上手 第一个问题不太清楚。
第二个问题，在瞬态求解设置中第二个选项卡中要选择保存的时间点，后处理的时候才能相应时间点的结果。
再有就是楼上所说，双击图形界面左下角的Time=-1，在出现的对话框中将时间点修改成其他时刻。 可以选，你一键过去就可以了 谢谢各位大神，已找到原因，我自己做的一个BLDC的仿真，电机的原始数据为48V 、60W、8P、12槽、4000RPM 、0.145NM、1.6A、反电动势系数6.35Vrms/kRPM、电阻1.8Ω、电感1.9mH，
但我的仿真结果如下，效率很低，铜耗较高，问题出在哪里，有哪位大神可以帮我看看。谢谢。
BRUSHLESS PERMANENT MAGNET DC MOTOR DESIGN
File: Setup1.res
GENERAL DATA
Rated Output Power (kW): 0.06
Rated Voltage (V): 48
Number of Poles: 8
Given Rated Speed (rpm): 4000
Frictional Loss (W): 7
Windage Loss (W): 0
Rotor Position: Inner
Type of Load: Constant Power
Type of Circuit: L3
Lead Angle of Trigger in Elec. Degrees: 0
Trigger Pulse Width in Elec. Degrees: 120
One-Transistor Voltage Drop (V): 0
One-Diode Voltage Drop (V): 0
Operating Temperature (C): 20
Maximum Current for CCC (A): 0
Minimum Current for CCC (A): 0
STATOR DATA
Number of Stator Slots: 12
Outer Diameter of Stator (mm): 56
Inner Diameter of Stator (mm): 30
Type of Stator Slot: 3
Stator Slot
hs0 (mm): 1
hs1 (mm): 2.15
hs2 (mm): 6.4
bs0 (mm): 2.52
bs1 (mm): 6.22
bs2 (mm): 9.72
rs (mm): 1.3
Top Tooth Width (mm): 3.35963
Bottom Tooth Width (mm): 3.29177
Skew Width (Number of Slots) 0
Length of Stator Core (mm): 28
Stacking Factor of Stator Core: 0.95
Type of Steel: D23_50
Designed Wedge Thickness (mm): 2.15
Slot Insulation Thickness (mm): 0
Layer Insulation Thickness (mm): 0
End Length Adjustment (mm): 0
Number of Parallel Branches: 4
Number of Conductors per Slot: 454
Type of Coils: 21
Average Coil Pitch: 1
Number of Wires per Conductor: 1
Wire Diameter (mm): 0.19
Wire Wrap Thickness (mm): 0.04
Slot Area (mm^2): 74.8341
Net Slot Area (mm^2): 62.9187
Limited Slot Fill Factor (%): 75
Stator Slot Fill Factor (%): 38.1709
Coil Half-Turn Length (mm): 41.0961
ROTOR DATA
Minimum Air Gap (mm): 0.5
Inner Diameter (mm): 8
Length of Rotor (mm): 28
Stacking Factor of Iron Core: 0.95
Type of Steel: D23_50
Polar Arc Radius (mm): 14.5
Mechanical Pole Embrace: 1
Electrical Pole Embrace: 0.89326
Max. Thickness of Magnet (mm): 2.75
Width of Magnet (mm): 10.3084
Type of Magnet: LNG34
Type of Rotor: 1
Magnetic Shaft: No
PERMANENT MAGNET DATA
Residual Flux Density (Tesla): 1.2
Coercive Force (kA/m): 44
Maximum Energy Density (kJ/m^3): 34
Relative Recoil Permeability: 4.49765
Demagnetized Flux Density (Tesla): 7.32422e-005
Recoil Residual Flux Density (Tesla): 0.248749
Recoil Coercive Force (kA/m): 44.0128
MATERIAL CONSUMPTION
Armature Copper Density (kg/m^3): 8900
Permanent Magnet Density (kg/m^3): 7800
Armature Core Steel Density (kg/m^3): 7820
Rotor Core Steel Density (kg/m^3): 7820
Armature Copper Weight (kg): 0.0564969
Permanent Magnet Weight (kg): 0.0495296
Armature Core Steel Weight (kg): 0.178504
Rotor Core Steel Weight (kg): 0.0797665
Total Net Weight (kg): 0.364296
Armature Core Steel Consumption (kg): 0.609362
Rotor Core Steel Consumption (kg): 0.114728
STEADY STATE PARAMETERS
Stator Winding Factor: 0.866025
D-Axis Reactive Inductance Lad (H): 0.00185689
Q-Axis Reactive Inductance Laq (H): 0.00185689
D-Axis Inductance L1+Lad(H): 0.00434898
Q-Axis Inductance L1+Laq(H): 0.00434898
Armature Leakage Inductance L1 (H): 0.00249209
Zero-Sequence Inductance L0 (H): 0.000467892
Armature Phase Resistance R1 (ohm): 2.93655
Armature Phase Resistance at 20C (ohm): 2.93655
D-Axis Time Constant (s): 0.000632336
Q-Axis Time Constant (s): 0.000632336
Ideal Back-EMF Constant KE (Vs/rad): 0.0213963
Start Torque Constant KT (Nm/A): 0.0214156
Rated Torque Constant KT (Nm/A): 0.0398667
NO-LOAD MAGNETIC DATA
Stator-Teeth Flux Density (Tesla): 0.285132
Stator-Yoke Flux Density (Tesla): 0.244976
Rotor-Yoke Flux Density (Tesla): 0.0816588
Air-Gap Flux Density (Tesla): 0.110321
Magnet Flux Density (Tesla): 0.130584
Stator-Teeth By-Pass Factor: 0.00111555
Stator-Yoke By-Pass Factor: 2.32908e-005
Rotor-Yoke By-Pass Factor: 2.28224e-005
Stator-Teeth Ampere Turns (A.T): 0.88271
Stator-Yoke Ampere Turns (A.T): 0.622486
Rotor-Yoke Ampere Turns (A.T): 0.0611804
Air-Gap Ampere Turns (A.T): 55.9395
Magnet Ampere Turns (A.T): -57.4962
Armature Reactive Ampere Turns
at Start Operation (A.T): 176.434
Leakage-Flux Factor: 1
Correction Factor for Magnetic
Circuit Length of Stator Yoke: 0.702247
Correction Factor for Magnetic
Circuit Length of Rotor Yoke: 0.702247
No-Load Speed (rpm): 16905
Cogging Torque (N.m): 0.00388303
FULL-LOAD DATA
Average Input Current (A): 3.17635
Root-Mean-Square Armature Current (A): 3.06109
Armature Thermal Load (A^2/mm^3): 1193.99
Specific Electric Loading (A/mm): 44.2367
Armature Current Density (A/mm^2): 26.991
Frictional and Windage Loss (W): 9.12135
Iron-Core Loss (W): 0.798323
Armature Copper Loss (W): 82.5489
Transistor Loss (W): 0
Diode Loss (W): 0
Total Loss (W): 92.4686
Output Power (W): 59.9963
Input Power (W): 152.465
Efficiency (%): 39.3509
Rated Speed (rpm): 5212.2
Rated Torque (N.m): 0.109919
Locked-Rotor Torque (N.m): 0.507399
Locked-Rotor Current (A): 24.4733
WINDING ARRANGEMENT
The 3-phase, 2-layer winding can be arranged in 3 slots as below:
ABC
Angle per slot (elec. degrees): 120
Phase-A axis (elec. degrees): 60
First slot center (elec. degrees): 0
TRANSIENT FEA INPUT DATA
For Armature Winding:
Number of Turns: 908
Parallel Branches: 4
Terminal Resistance (ohm): 2.93655
End Leakage Inductance (H): 3.03955e-005
2D Equivalent Value:
Equivalent Model Depth (mm): 28
Equivalent Stator Stacking Factor: 0.95
Equivalent Rotor Stacking Factor: 0.95
Equivalent Br (Tesla): 0.248749
Equivalent Hc (kA/m): 44.0128
Estimated Rotor Moment of Inertia (kg m^2): 1.51651e-005
磁环材料更改为NdFe之后，效率提升了，但是还是没达到要求，是错在哪里了？如果有人知道的话，谢谢。 yupoo 发表于 2017-8-1 22:16
time=-1,改成0，或者其他时刻看看。
谢谢，已可以显示 你的磁密太低了，应该先算磁路法，把齿槽尺寸和永磁体尺寸大致计算出来
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