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电机本体设计 永磁同步 ansoft


电机本体设计与分析

学院:电气学院 姓名:刘会贵 学号:Z1207009

变频永磁同步电机设计与性能分析
一、路算过程 1、额定参数

2、基本参数
定子数据

定子绕组

定子槽型

转子数据

磁极

>
添加分析步骤

3、分析结果查看

设计单 ADJUSTABLE-SPEED PERMANENT MAGNET SYNCHRONOUS MOTOR DESIGN File: Setup1.res GENERAL DATA Rated Output Power (kW): 1 Rated Voltage (V): 34 Number of Poles: 4 Frequency (Hz): 2.13333 Frictional Loss (W): 0 Windage Loss (W): 0 Rotor Position: Inner Type of Circuit: Y3 Type of Source: Sine Domain: Time Operating Temperature (C): 75 STATOR DATA Number of Stator Slots: 48 Outer Diameter of Stator (mm): Inner Diameter of Stator (mm):

300 224

Type of Stator Slot: 2 Stator Slot hs0 (mm): 1 hs1 (mm): 1 hs2 (mm): 20 bs0 (mm): 3 bs1 (mm): 6.92543 bs2 (mm): 9.54717 Top Tooth Width (mm): 8 Bottom Tooth Width (mm): 8 Skew Width (Number of Slots): 0 Length of Stator Core (mm): 150 Stacking Factor of Stator Core: 0.95 Type of Steel: iron Slot Insulation Thickness (mm): 0 Layer Insulation Thickness (mm): 0 End Length Adjustment (mm): 0 Number of Parallel Branches: 2 Number of Conductors per Slot: 18 Type of Coils: 21 Average Coil Pitch: 2 Number of Wires per Conductor: 5 Wire Diameter (mm): 1.024 Wire Wrap Thickness (mm): 0 Slot Area (mm^2): 208.483 Net Slot Area (mm^2): 200.52 Limited Slot Fill Factor (%): 55 Stator Slot Fill Factor (%): 47.0636 Coil Half-Turn Length (mm): 211.45 Wire Resistivity (ohm.mm^2/m): 0.0217 ROTOR DATA Minimum Air Gap (mm): 2 Inner Diameter (mm): 175 Length of Rotor (mm): 150 Stacking Factor of Iron Core: 0.95 Type of Steel: steel_1008 Polar Arc Radius (mm): 110 Mechanical Pole Embrace: 0.9 Electrical Pole Embrace: 0.899105 Max. Thickness of Magnet (mm): 7 Width of Magnet (mm): 150.561

Type of Magnet: Type of Rotor: 1 Magnetic Shaft:

NdFe35 Yes

PERMANENT MAGNET DATA Residual Flux Density (Tesla): 1.23 Coercive Force (kA/m): 890 Maximum Energy Density (kJ/m^3): 273.675 Relative Recoil Permeability: 1.09981 Demagnetized Flux Density (Tesla): 0 Recoil Residual Flux Density (Tesla): 1.23 Recoil Coercive Force (kA/m): 890 MATERIAL CONSUMPTION Armature Wire Density (kg/m^3): 8900 Permanent Magnet Density (kg/m^3): 7400 Armature Core Steel Density (kg/m^3): 7870 Rotor Core Steel Density (kg/m^3): 7872 Armature Copper Weight (kg): 6.69532 Permanent Magnet Weight (kg): 4.67943 Armature Core Steel Weight (kg): 23.8544 Rotor Core Steel Weight (kg): 10.4058 Total Net Weight (kg): 45.6349 Armature Core Steel Consumption (kg): 102.961 Rotor Core Steel Consumption (kg): 48.9996 STEADY STATE PARAMETERS Stator Winding Factor: 0.247861 D-Axis Reactive Reactance Xad (ohm): 0.00480197 Q-Axis Reactive Reactance Xaq (ohm): 0.00480197 D-Axis Reactance X1+Xad (ohm): 0.00675537 Q-Axis Reactance X1+Xaq (ohm): 0.00675537 Armature Leakage Reactance X1 (ohm): 0.0019534 Zero-Sequence Reactance X0 (ohm): 0.00415608 Armature Phase Resistance R1 (ohm): 0.0802306 Armature Phase Resistance at 20C (ohm): 0.0659962 NO-LOAD MAGNETIC DATA Stator-Teeth Flux Density (Tesla): 1.03093

Stator-Yoke Flux Density (Tesla): 3.06277 Rotor-Yoke Flux Density (Tesla): 2.53274 Air-Gap Flux Density (Tesla): 0.459301 Magnet Flux Density (Tesla): 0.495408 Stator-Teeth By-Pass Factor: 0.00028409 Stator-Yoke By-Pass Factor: 1.35057e-005 Rotor-Yoke By-Pass Factor: 0.00883849 Stator-Teeth Ampere Turns (A.T): 4.63206 Stator-Yoke Ampere Turns (A.T): 48.1216 Rotor-Yoke Ampere Turns (A.T): 2885.36 Air-Gap Ampere Turns (A.T): 785.141 Magnet Ampere Turns (A.T): -3720.74 Leakage-Flux Factor: 1 Correction Factor for Magnetic Circuit Length of Stator Yoke: 0.700298 Correction Factor for Magnetic Circuit Length of Rotor Yoke: 0.113955 No-Load Line Current (A): 241.681 No-Load Input Power (W): 14058.7 Cogging Torque (N.m): 1.10026 FULL-LOAD DATA Maximum Line Induced Voltage (V): 3.82276 Root-Mean-Square Line Current (A): 224.841 Root-Mean-Square Phase Current (A): 224.841 Armature Thermal Load (A^2/mm^3): 3768.31 Specific Electric Loading (A/mm): 138.026 Armature Current Density (A/mm^2): 27.3014 Frictional and Windage Loss (W): 0 Iron-Core Loss (W): 0.000123458 Armature Copper Loss (W): 12167.8 Total Loss (W): 12167.8 Output Power (W): 1000.34 Input Power (W): 13168.1 Efficiency (%): 7.59665 Synchronous Speed (rpm): 64 Rated Torque (N.m): 149.258 Torque Angle (degree): -26.2233

Maximum Output Power (W): 1120.39 Torque Constant KT (Nm/A): 0.663839 WINDING ARRANGEMENT The 3-phase, 2-layer winding can be arranged in 24 slots as below: AAAAZZZZBBBBXXXXCCCCYYYY Angle per slot (elec. degrees): 15 Phase-A axis (elec. degrees): 37.5 First slot center (elec. degrees): 0 TRANSIENT FEA INPUT DATA For Armature Winding: Number of Turns: 144 Parallel Branches: 2 Terminal Resistance (ohm): 0.0802306 End Leakage Inductance (H): 2.57082e-005 2D Equivalent Value: Equivalent Model Depth (mm): 150 Equivalent Stator Stacking Factor: 0.95 Equivalent Rotor Stacking Factor: 0.95 Equivalent Br (Tesla): 1.23 Equivalent Hc (kA/m): 890 Estimated Rotor Inertial Moment (kg m^2): 0.269077 相应曲线

三、2D 分析
从 RMxprt 得到 Ansoft 2D 模型

1、静态分析
分析模型类型更改

添加零磁边界

a.只给 A 相加电流 静态分析---A 相励磁设置, 槽内总电流 10A

X 相励磁设置, 槽内总电流 10A

添加仿真步骤

结果查看 查看磁密 B

磁力线绘制

绘制有限元剖分

b:所有绕组均通电 设在某一瞬间 A 相电流:18.67A, B 相电流:-9.335A ,C 相电流:-9.335A

电机某处物理量的查看:绘制经过该点的曲线 新增两条圆弧: Polyline1 Polyline2

仿真结果查看

c:三相绕组均通电时的静态参数计算 电感矩阵设置—只有定子通电

转子受力设定

转子转矩设定

电感矩阵参数查看

受力

转矩

2、动态分析
2D 动态空载分析 更改分析类型

设置理想空载

边界-----0 磁位设置 定子外圆设为边界-----0 磁位

励磁设置 VoltageA=27.7609 * sin(2*pi*2.13333*time) VoltageB=27.7609 * sin(2*pi*2.13333*time-2*pi/3) VoltageC=27.7609 * sin(2*pi*2.13333*time-4*pi/3)

涡流设置

铁芯损耗设置

参数设置

仿真设置

空载动态 2D 有限元计算结果查看


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