要设计一台22kW，380V，150r/min，30极的异步起动永磁同步电机，如何进行设计？

yuesheng521 · 发表于 2017-4-5 21:21

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本人菜鸟，完全不懂电机设计，现要求设计一台异步起动永磁同步电机，怎么着手呢？一些相关的参数去哪里找呢？

Nephology · 发表于 2017-4-6 08:06

参考一些算例的磁负荷、电负荷取值，然后用路算软件调试电机的各部分尺寸大小，使得电机各部分性能和参数能够大致达到合理值，最后采用有限元场算软件再次的仿真一个再这个尺寸下，电机的性能是不是符合要求！

hxmotor · 发表于 2017-4-11 21:49

30极的永磁同步电机要实现异步起动，这个我感觉很难，估计启动起来很困难。建议更改为变频启动比较好设计。

Eragon2016 · 发表于 2017-11-6 11:00

   这是我初步仿真的一个参数，第一次做这么大的电机，看看可符合你的要求
  BRUSHLESS PERMANENT MAGNET DC MOTOR DESIGN

                  File: Setup1.res

   GENERAL DATA

Rated Output Power (kW): 22
Rated Voltage (V): 380
Number of Poles: 32
Given Rated Speed (rpm): 150
Frictional Loss (W): 0
Windage Loss (W): 0
Rotor Position: Outer
Type of Load: Fan Load
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): 75
Maximum Current for CCC (A): 0
Minimum Current for CCC (A): 0

   STATOR DATA

Number of Stator Slots: 30
Outer Diameter of Stator (mm):    400
Inner Diameter of Stator (mm):    230

Type of Stator Slot: 3
Stator Slot
         hs0 (mm):    4.5
         hs1 (mm):    4
         hs2 (mm):    65
         bs0 (mm):    10
         bs1 (mm):    26.1647
         bs2 (mm):    12.5011
         rs (mm):    1

Top Tooth Width (mm):    14
Bottom Tooth Width (mm):    14
Skew Width (Number of Slots) 2.6e-006

Length of Stator Core (mm):    380
Stacking Factor of Stator Core: 0.95
Type of Steel: DW310_35
Designed Wedge Thickness (mm):    0.762735
Slot Insulation Thickness (mm):    0
Layer Insulation Thickness (mm):    0
End Length Adjustment (mm):    0
Number of Parallel Branches: 1
Number of Conductors per Slot: 36
Type of Coils: 21
Average Coil Pitch: 1
Number of Wires per Conductor: 2
Wire Diameter (mm):    3.665
Wire Wrap Thickness (mm):    0
Slot Area (mm^2): 1386.04
Net Slot Area (mm^2): 1332.24
Limited Slot Fill Factor (%): 75
Stator Slot Fill Factor (%): 72.5937
Coil Half-Turn Length (mm):    404.275

   ROTOR DATA

Minimum Air Gap (mm):    6
Outer Diameter (mm):    450
Length of Rotor (mm):    380
Stacking Factor of Iron Core: 0.95
Type of Steel: steel_1008
Polar Arc Radius (mm):    306
Mechanical Pole Embrace: 0.75
Electrical Pole Embrace: 0.67606
Max. Thickness of Magnet (mm):    10
Width of Magnet (mm):    30.3355
Type of Magnet: Material1
Type of Rotor: 1
Magnetic Shaft: Yes

   PERMANENT MAGNET DATA

Residual Flux Density (Tesla): 1.29822
Coercive Force (kA/m): 1003
Maximum Energy Density (kJ/m^3): 325.528
Relative Recoil Permeability: 1.03003
Demagnetized Flux Density (Tesla): 7.9237e-005
Recoil Residual Flux Density (Tesla): 1.29822
Recoil Coercive Force (kA/m): 1003

   MATERIAL CONSUMPTION

Armature Copper 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):    7872

Armature Copper Weight (kg):    81.9895
Permanent Magnet Weight (kg):    29.2964
Armature Core Steel Weight (kg):    117.467
Rotor Core Steel Weight (kg):    35.4343
Total Net Weight (kg):    264.187

Armature Core Steel Consumption (kg):    448.517
Rotor Core Steel Consumption (kg):    583.161

   STEADY STATE PARAMETERS

Stator Winding Factor: 0.951436
D-Axis Reactive Inductance Lad (H): 0.00144936
Q-Axis Reactive Inductance Laq (H): 0.00144936
D-Axis Inductance L1+Lad(H): 0.0132664
Q-Axis Inductance L1+Laq(H): 0.0132664
Armature Leakage Inductance L1 (H): 0.011817
Zero-Sequence Inductance L0 (H): 0.0104959
Armature Phase Resistance R1 (ohm): 0.149683
Armature Phase Resistance at 20C (ohm): 0.123126
D-Axis Time Constant (s): 0.00968293
Q-Axis Time Constant (s): 0.00968293

Ideal Back-EMF Constant KE (Vs/rad): 19.8925
Start Torque Constant KT (Nm/A): 11.1129
Rated Torque Constant KT (Nm/A): 24.2532

   NO-LOAD MAGNETIC DATA

Stator-Teeth Flux Density (Tesla): 1.59118
Stator-Yoke Flux Density (Tesla): 0.0875538
Rotor-Yoke Flux Density (Tesla): 1.22413
Air-Gap Flux Density (Tesla): 0.764323
Magnet Flux Density (Tesla): 0.765509

Stator-Teeth By-Pass Factor: 0.00374204
Stator-Yoke By-Pass Factor: 9.59003e-006
Rotor-Yoke By-Pass Factor: 3.35781e-005

Stator-Teeth Ampere Turns (A.T): 218.043
Stator-Yoke Ampere Turns (A.T): 0.0607447
Rotor-Yoke Ampere Turns (A.T): 8.75962
Air-Gap Ampere Turns (A.T): 3888.64
Magnet Ampere Turns (A.T): -4115.7

Armature Reactive Ampere Turns
  at Start Operation (A.T): 24746.5
Leakage-Flux Factor: 1
Correction Factor for Magnetic
  Circuit Length of Stator Yoke: 0.774647
Correction Factor for Magnetic
  Circuit Length of Rotor Yoke: 0.662213

No-Load Speed (rpm): 183.94
Cogging Torque (N.m): 0

   FULL-LOAD DATA

Average Input Current (A): 52.4672
Root-Mean-Square Armature Current (A): 30.2696
Armature Thermal Load (A^2/mm^3): 37.3216
Specific Electric Loading (A/mm): 26.0148
Armature Current Density (A/mm^2): 1.43463
Frictional and Windage Loss (W): 0
Iron-Core Loss (W): 468.346
Armature Copper Loss (W): 411.44
Transistor Loss (W): 0
Diode Loss (W): 0
Total Loss (W): 879.786
Output Power (W): 19057.7
Input Power (W): 19937.5
Efficiency (%): 95.5873

Rated Speed (rpm): 143.017
Rated Torque (N.m): 1272.5

Locked-Rotor Torque (N.m): 42244.5
Locked-Rotor Current (A): 3801.41

   WINDING ARRANGEMENT

The 3-phase, 2-layer winding can be arranged in 15 slots as below:

AXAXACZCZCBYBYB

Angle per slot (elec. degrees): 192
Phase-A axis (elec. degrees): 120
First slot center (elec. degrees): 0

   TRANSIENT FEA INPUT DATA

For Armature Winding:
  Number of Turns: 180
  Parallel Branches: 1
  Terminal Resistance (ohm): 0.149683
  End Leakage Inductance (H): 1.50002e-005
2D Equivalent Value:
  Equivalent Model Depth (mm): 380
  Equivalent Stator Stacking Factor: 0.95
  Equivalent Rotor Stacking Factor: 0.95
  Equivalent Br (Tesla): 1.29822
  Equivalent Hc (kA/m): 1003
Estimated Rotor Moment of Inertia (kg m^2): 10.9344

欧阳庆 · 发表于 2017-11-7 12:06

楼上的这个方案算是什么？人家需要150转/分，你来个143转/分，根本就没有进入到同步状态嘛

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