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?
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? 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! 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。 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
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
页:
[1]