12槽10极的的无刷直流电机，用RMXPRT 计算好象有问题

yzhangx

12槽10极的的无刷直流电机（集中绕组），用RMXPRT 计算好象有问题, 实际电机空载不到2000，计算结果有5000多，效率也很低，
不知道哪里搞错，帮忙看下，

BRUSHLESS PERMANENT MAGNET DC MOTOR DESIGN

       File: e:/yzx/maxwell/default/bldc.pjt/bldc.res


     GENERAL DATA

Rated Output Power (kW):        0.09
Rated Voltage (V):        180
Number of Poles:        4
Given Rated Speed (rpm):        1500
Friction and Wind Loss (W):        2
Rotor Position:        Inner
Type of Circuit:        Y3
Lead Angle of Trigger in Elec. Degrees:        0
Trigger Pulse Width in Elec. Degrees:        120
One-Transistor Voltage Drop (V):        2
One-Diode Voltage Drop (V):        2
Operating Temperature (C):        75
Maximum Current for CCC (A):        0
Minimum Current for CCC (A):        0


     STATOR DATA

Number of Stator Slots:        12
Outer Diameter of Stator (mm):          94
Inner Diameter of Stator (mm):          59

Type of Stator Slot:        3
Dimension of Stator Slot
            hs0 (mm):          1.9
            hs1 (mm):          0.2
            hs2 (mm):          12
            bs0 (mm):          1.9
            bs1 (mm):          11.5
            bs2 (mm):          17.4
            rs (mm):          0.5

Top Tooth Width (mm):          5.04572
Bottom Tooth Width (mm):          5.42891
Skew Width (Number of Slots)        1

Length of Stator Core (mm):          40
Stacking Factor of Stator Core:        0.95
Type of Steel:        DW800-50HZ
Slot Insulation Thickness (mm):          0.5
End Length Adjustment (mm):          0
Number of Parallel Branches:        1
Number of Conductors per Slot:        215
Type of Coils:        21
Average Coil Pitch:        1
Number of Wires per Conductor:        1
Wire Diameter (mm):          0.36
Wire Wrap Thickness (mm):          0.04
Stator Slot Fill Factor (%):        23.472
Coil Half-Turn Length (mm):          69.4524


     ROTOR DATA

Minimum Air Gap (mm):          0.4
Inner Diameter (mm):          12
Length of Rotor (mm):          46
Stacking Factor of Iron Core:        0.95
Type of Steel:        DW800-50HZ
Polar Arc Radius (mm):          27.4
Mechanical Pole Embrace:        0.7
Electrical Pole Embrace:        0.68805
Max. Thickness of Magnet (mm):          5.5
Width of Magnet (mm):          30.1326
Type of Magnet:        y30bh
Type of Rotor:        1


     PERMANENT MAGNET DATA

Residual Flux Density (Tesla):        0.39
Coercive Force (kA/m):        232
Maximum Energy Density (kJ/m^3):        27
Relative Recoil Permeability:        1.1
Demagnetized Flux Density (Tesla):        0.250058
Recoil Residual Flux Density (Tesla):        0.390001
Recoil Coercive Force (kA/m):        282.147

     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):          0.162327
Permanent Magnet Weight (kg):          0.216594
Armature Core Steel Weight (kg):          0.574226
Rotor Core Steel Weight (kg):          0.550714
Total Net Weight (kg):          1.50386

Armature Core Steel Consumption (kg):          2.17395
Rotor Core Steel Consumption (kg):          0.665993


     STEADY STATE PARAMETERS

Stator Winding Factor:        0.5
D-Axis Reactive Inductance Lad (H):        0.00557984
Q-Axis Reactive Inductance Laq (H):        0.00557984
D-Axis Inductance L1+Lad(H):        0.0110478
Q-Axis Inductance L1+Laq(H):        0.0110478
Armature Leakage Inductance L1 (H):        0.00546794
Zero-Sequence Inductance L0 (H):        0.0171688
Armature Phase Resistance R1 (ohm):        12.7336
D-Axis Time Constant (s):        0.000438198
Q-Axis Time Constant (s):        0.000438198
Ideal Torque Constant KT (Nm/A):        0.292901
Ideal Back-EMF Constant KE (Vs/rad):        0.292901


     NO-LOAD MAGNETIC DATA

Stator-Teeth Flux Density (Tesla):        1.09124
Stator-Yoke Flux Density (Tesla):        1.89996
Rotor-Yoke Flux Density (Tesla):        0.287873
Air-Gap Flux Density (Tesla):        0.34041
Magnet Flux Density (Tesla):        0.31947

Stator-Teeth Ampere Turns (A.T):        2.37635
Stator-Yoke Ampere Turns (A.T):        160.132
Rotor-Yoke Ampere Turns (A.T):        0.6189
Air-Gap Ampere Turns (A.T):        117.557
Magnet Ampere Turns (A.T):        -280.64

Armature Reactive Ampere Turns
  at Start Operation (A.T):        450.27
Leakage-Flux Factor:        1
Correction Factor for Magnetic
  Circuit Length of Stator Yoke:        0.324997
Correction Factor for Magnetic
  Circuit Length of Rotor Yoke:        0.77065

No-Load Speed (rpm):        5458.99
Cogging Torque (N.m):        1.19209e-014


     FULL-LOAD DATA

Average Input Current (A):        5.98487
Root-Mean-Square Armature Current (A):        5.01333
Armature Thermal Load (A^2/mm^3):        3436.97
Specific Electric Loading (A/mm):        69.7821
Armature Current Density (A/mm^2):        49.2528
Friction and Wind Loss (W):        0.631502
Iron-Core Loss (W):        1.72487
Armature Copper Loss (W):        960.117
Transistor Loss (W):        24.2843
Diode Loss (W):        0.350619
Total Loss (W):        987.108
Output Power (W):        90.1676
Input Power (W):        1077.28
Efficiency (%):        8.36996

Rated Speed (rpm):        473.626
Rated Torque (N.m):        1.81797

Locked-Rotor Torque (N.m):        2.02268
Locked-Rotor Current (A):        6.8732


     WINDING ARRANGEMENT

The 3-phase, 2-layer winding can be arranged in 6 slots as below:

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Angle per slot (elec. degrees):        60
Phase-A axis (elec. degrees):        30
First slot center (elec. degrees):        0



     TRANSIENT FEA INPUT DATA

For Armature Winding:
  Number of Turns:        430
  Parallel Branches:        1
  Terminal Resistance (ohm):        12.7336
  End Leakage Inductance (H):        0.000670396
2D Equivalent Value:
  Equivalent Air-Gap Length (mm):        40
  Equivalent Stator Stacking Factor:        0.95
  Equivalent Rotor Stacking Factor:        1.0925
  Equivalent Br (Tesla):        0.448501
  Equivalent Hc (kA/m):        282.147
Estimated Rotor Moment of Inertia (kg m^2):        0.000404152

束是猫先生

你的极数怎么写的4极，小老弟

yzhangx

束是猫先生 发表于 2019-2-27 13:56
你的极数怎么写的4极，小老弟

转子是10极的，写进去，出错了。只有2、4、6可选

束是猫先生

yzhangx 发表于 2019-2-27 14:00
转子是10极的，写进去，出错了。只有2、4、6可选

把文件上传一下，我看看

yzhangx

束是猫先生 发表于 2019-2-27 14:06
把文件上传一下，我看看

什么文件？电机有关参数吗？

zy1986

你的电流密度50，再把你的样机参数和仿真模型对照下。叠厚、进角、匝数材料，仿真和实物不可能完全一致的，还是会有偏差的

HC2019

验证一下，楼主的原始文件输入数据应该还有错误，除了极数，还有Pole Arc.修正后计算结果效率还可以78%,空载2500rpm

yzhangx

HC2019 发表于 2022-8-5 09:14
验证一下，楼主的原始文件输入数据应该还有错误，除了极数，还有Pole Arc.修正后计算结果效率还可以78%,空 ...

谢谢了，
多年后还有人回我的贴子。
好的我再看一下。

大白小黑

yzhangx 发表于 2022-9-5 09:58
谢谢了，
多年后还有人回我的贴子。
好的我再看一下。

那你可以永远相信西莫，人才辈出