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[RMxprt] 請教RM的輸出資料修正

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发表于 2014-11-4 22:31 | 显示全部楼层 |阅读模式 来自: 中国台湾

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三相異步電機設計
這是用一部實際測試的馬達數據去跑的
其中斜槽漏抗計算加在轉子側的部分過大
導致功因較差,啟動轉矩的模擬偏低。
請問有可以改變設定內部阻抗參數的方法嗎?

求各位先進指點



GENERAL DATA

Given Output Power (kW):        1
Rated Voltage (V):        220
Winding Connection:        Delta
Number of Poles:        2
Given Speed (rpm):        3259
Frequency (Hz):        60
Stray Loss (W):        10
Frictional Loss (W):        0
Windage Loss (W):        0
Operation Mode:        Motor
Type of Load:        Constant Power
Operating Temperature (C):        75

     STATOR DATA

Number of Stator Slots:        24
Outer Diameter of Stator (mm):          135
Inner Diameter of Stator (mm):          74
Type of Stator Slot:        2
Stator Slot       
            hs0 (mm):          0.95
            hs1 (mm):          0.8
            hs2 (mm):          9
            bs0 (mm):          2.03
            bs1 (mm):          6.17
            bs2 (mm):          9
Top Tooth Width (mm):          3.99493
Bottom Tooth Width (mm):          3.53861

Length of Stator Core (mm):          85
Stacking Factor of Stator Core:        0.96
Type of Steel:        S23_0.50mm_PFerror
Number of lamination sectors        0
Press board thickness (mm):          0
Magnetic press board        No
Number of Parallel Branches:        1
Type of Coils:        21
Coil Pitch:        9
Number of Conductors per Slot:        84
Number of Wires per Conductor:        1
Wire Diameter (mm):        0.7
Wire Wrap Thickness (mm):        0.104

Wedge Thickness (mm):        0
Slot Liner Thickness (mm):        0
Layer Insulation (mm):        0
Slot Area (mm^2):        105.282
Net Slot Area (mm^2):        100.074

Slot Fill Factor (%):        54.259
Limited Slot Fill Factor (%):        75
Wire Resistivity (ohm.mm^2/m):        0.0217
Top Free Space in Slot (%):        0
Bottom Free Space in Slot (%):        0
Conductor Length Adjustment (mm):          7
End Length Correction Factor        1
End Leakage Reactance Correction Factor        1

     ROTOR DATA

Number of Rotor Slots:        34
Air Gap (mm):          0.35
Inner Diameter of Rotor (mm):          20
Type of Rotor Slot:        2
Rotor Slot       
            hs0 (mm):          0.94
            hs1 (mm):          2
            hs2 (mm):          3.66
            bs0 (mm):          1.12
            bs1 (mm):          2.9
            bs2 (mm):          2.4
Cast Rotor:        Yes
Half Slot:        No

Length of Rotor (mm):          85
Stacking Factor of Rotor Core:        0.96
Type of Steel:        S23_0.50mm_PFerror
Skew Width:        3.8388
End Length of Bar (mm):          0
Height of End Ring (mm):          11.075
Width of End Ring (mm):          8
Resistivity of Rotor Bar       
  at 75 Centigrade (ohm.mm^2/m):        0.0377
Resistivity of Rotor Ring       
  at 75 Centigrade (ohm.mm^2/m):        0.0377
Magnetic Shaft:        No

     MATERIAL CONSUMPTION

Armature Copper Density (kg/m^3):          8900
Rotor Bar Material Density (kg/m^3):          2700
Rotor Ring Material Density (kg/m^3):          2700
Armature Core Steel Density (kg/m^3):          7700
Rotor Core Steel Density (kg/m^3):          7700

Armature Copper Weight (kg):          1.59062
Rotor Bar Material Weight (kg):          0.132914
Rotor Ring Material Weight (kg):          0.0907024
Armature Core Steel Weight (kg):          4.70377
Rotor Core Steel Weight (kg):          2.09014
Total Net Weight (kg):          8.60815

Armature Core Steel Consumption (kg):          9.26342
Rotor Core Steel Consumption (kg):          2.7023

     RATED-LOAD OPERATION

Stator Resistance (ohm):        8.72857
Stator Resistance at 20C (ohm):        7.17995
Stator Leakage Reactance (ohm):        6.04859
Rotor Resistance (ohm):        11.2268
Rotor Resistance at 20C (ohm):        9.23491
Rotor Leakage Reactance (ohm):        14.6507
Resistance Corresponding to       
  Iron-Core Loss (ohm):        6747.39
Magnetizing Reactance (ohm):        417.614

Stator Phase Current (A):        2.04911
Current Corresponding to       
  Iron-Core Loss (A):        0.0294605
Magnetizing Current (A):        0.475994
Rotor Phase Current (A):        1.89934

Copper Loss of Stator Winding (W):        109.95
Copper Loss of Rotor Winding (W):        121.501
Iron-Core Loss (W):        17.5686
Frictional and Windage Loss (W):        0
Stray Loss (W):        10
Total Loss (W):        259.019
Input Power (kW):        1.25903
Output Power (kW):        1.00001

Mechanical Shaft Torque (N.m):        2.97489
Efficiency (%):        79.427
Power Factor:        0.923555
Rated Slip:        0.108337
Rated Shaft Speed (rpm):        3209.99

     NO-LOAD OPERATION

No-Load Stator Resistance (ohm):        8.72857
No-Load Stator Leakage Reactance (ohm):        6.05811
No-Load Rotor Resistance (ohm):        11.2263
No-Load Rotor Leakage Reactance (ohm):        14.6851

No-Load Stator Phase Current (A):        0.519505
No-Load Iron-Core Loss (W):        20.8469
No-Load Input Power (W):        37.9969
No-Load Power Factor:        0.0816538
No-Load Slip:        6.61238e-006
No-Load Shaft Speed (rpm):        3599.98

     BREAK-DOWN OPERATION

Break-Down Slip:        0.51
Break-Down Torque (N.m):        6.07058
Break-Down Torque Ratio:        2.04061
Break-Down Phase Current (A):        6.11492

     LOCKED-ROTOR OPERATION

Locked-Rotor Torque (N.m):        5.20785
Locked-Rotor Phase Current (A):        7.89856
Locked-Rotor Torque Ratio:        1.7506
Locked-Rotor Current Ratio:        3.85463

Locked-Rotor Stator Resistance (ohm):        8.72857
Locked-Rotor Stator       
  Leakage Reactance (ohm):        5.97709
Locked-Rotor Rotor Resistance (ohm):        11.268
Locked-Rotor Rotor       
  Leakage Reactance (ohm):        14.3884

     DETAILED DATA AT RATED OPERATION

Stator Slot Leakage Reactance (ohm):        2.25092
Stator End-Winding Leakage       
  Reactance (ohm):        2.16827
Stator Differential Leakage       
  Reactance (ohm):        1.6294
Rotor Slot Leakage Reactance (ohm):        3.48911
Rotor End-Winding Leakage       
  Reactance (ohm):        0.623603
Rotor Differential Leakage       
  Reactance (ohm):        1.58174
Skewing Leakage Reactance (ohm):        8.95628

Stator Winding Factor:        0.884765

Stator-Teeth Flux Density (Tesla):        1.05658
Rotor-Teeth Flux Density (Tesla):        0.865286
Stator-Yoke Flux Density (Tesla):        0.923402
Rotor-Yoke Flux Density (Tesla):        0.80348
Air-Gap Flux Density (Tesla):        0.393949

Stator-Teeth Ampere Turns (A.T):        7.07595
Rotor-Teeth Ampere Turns (A.T):        3.06041
Stator-Yoke Ampere Turns (A.T):        35.4644
Rotor-Yoke Ampere Turns (A.T):        7.23746
Air-Gap Ampere Turns (A.T):        138.911

Correction Factor for Magnetic       
  Circuit Length of Stator Yoke:        0.7
Correction Factor for Magnetic       
  Circuit Length of Rotor Yoke:        0.524763
Saturation Factor for Teeth:        1.07297
Saturation Factor for Teeth & Yoke:        1.38038
Induced-Voltage Factor:        0.903553

Stator Current Density (A/mm^2):        5.3245
Specific Electric Loading (A/mm):        17.7694
Stator Thermal Load (A^2/mm^3):        94.6134

Rotor Bar Current Density (A/mm^2):        5.84967
Rotor Ring Current Density (A/mm^2):        6.09432

Half-Turn Length of       
  Stator Winding (mm):          230.356

     WINDING ARRANGEMENT

The 3-phase, 2-layer winding can be arranged in 12 slots as below:

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Angle per slot (elec. degrees):        15
Phase-A axis (elec. degrees):        90
First slot center (elec. degrees):        0



     TRANSIENT FEA INPUT DATA

For one phase of the Stator Winding:
  Number of Turns:        336
  Parallel Branches:        1
  Terminal Resistance (ohm):        8.72857
  End Leakage Inductance (H):        0.00575152
For Rotor End Ring Between Two Bars of One Side:
  Equivalent Ring Resistance (ohm):        2.37257e-006
  Equivalent Ring Inductance (H):        1.33351e-008
2D Equivalent Value:
  Equivalent Model Depth (mm):        85
  Equivalent Stator Stacking Factor:        0.96
  Equivalent Rotor Stacking Factor:        0.96
Estimated Rotor Inertial Moment (kg m^2):        0.00187901
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