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这是我在RMxprt中测试的结果,(永磁直流电动机)
有哪位高手能够帮我解决一下里面的错误,
1,为什么输入电流会那么大,导致效率这么低
2,为什么槽满率这么大321.399%
是不是输入的数据有问题,请高手们帮帮忙,
非常感谢!
PERMANENT MAGNET DC MOTOR DESIGN
File: d:\ansoft\maxwell\default\y-q3.pjt\y-q3.res
GENERAL DATA总体要求数据
Rated Output Power (kW): 0.9额定输出功率
Rated Voltage (V): 12额定电压
Number of Poles: 4极数
Given Rated Speed (rpm): 7000转速
Frictional Loss (W): 20风摩损耗
Brush Displacement: 0电刷偏移角度
One-Pair Brush Voltage Drop (V): 1.5一对电刷压降
Operating Temperature (C): 115工作温度
ROTOR DATA 转子数据
Number of Rotor Slots: 14转子槽数
Outer Diameter of Rotor (mm): 48转子外径
Inner Diameter of Rotor (mm): 12转子内径
Type of Rotor Slot: 1转子槽类型
Dimension of Rotor Slot转子槽尺寸
hr0 (mm): 1
hr2 (mm): 7.5
br0 (mm): 2.5
br1 (mm): 5.5
br2 (mm): 2.6
Top Tooth Width (mm): 3.58818齿顶宽
Bottom Tooth Width (mm): 3.12219齿底宽
Skew Width (Number of Slots): 0斜槽宽度
Length of Rotor Core (mm): 31.5转子铁芯长度
Stacking Factor of Rotor Core: 0.95转子铁芯叠压系数
Type of Steel: DW310-35硅钢片牌号
Slot Insulation Thickness (mm): 1槽绝缘厚度
End Length Adjustment (mm): 8绕组端部伸出铁心直线部分长度
Number of Virtual Slots per Slot: 3虚槽数
Number of Conductors per Slot: 20每槽导体数
Type of Armature Winding: Lap Winding绕组类型
Multiplex Number: 2并线数
Coil Pitch (Virtual Slots): 1虚槽线圈节距
Number of Wires per Conductor: 1线规号
Wire Diameter (mm): 0.8线径
Wire Wrap Thickness (mm): 0.05电磁线绝缘厚度
Number of Parallel Branches: 8并联支路数
Slot Fill Factor (%): 321.399槽满率
**** Warning - Result is Unfeasable ****警告:结果不可行
STATOR DATA定子数据
Minimum Air Gap (mm): 0.5最小气隙
Outer Diameter (mm): 60外径
Length of Stator (mm): 31.5定子长度
Stacking Factor of Iron Core: 0.95铁芯叠压系数
Type of Steel: D23硅钢片类型
Polar Arc Offset (mm): 0极弧偏心距
Polar Arc Radius (mm): 24.5极弧半径
Physical Pole Embrace: 0.7实际极弧空间范围(极弧系数)
Computed Pole Embrace: 0.699977计算的极弧空间范围(极弧系数)
Max. Thickness of Magnet (mm): 2.25最大磁钢厚度
Length of Magnet (mm): 31.5磁钢长度
Type of Magnet: xg208/44磁钢类型
PERMANENT MAGNET DATA永磁数据
Residual Flux Density (Tesla): 1 剩余磁通密度Br
Coercive Force (kA/m): 420 矫顽力Hc
Maximum Energy Density (kJ/m^3): 198最大磁能密度(BH)
Relative Recoil Permeability: 1 相对回复磁导率μr
Demagnetized Flux Density (Tesla): 0.339844消磁磁通密度Br
Recoil Residual Flux Density (Tesla): 0.856456反冲剩余磁通密度Br
Recoil Coercive Force (kA/m): 681.566反冲矫顽力Hc
COMMUTATOR & BRUSH DATA换向器&电刷
Type of Commutator: Cylinder Type换向器类型
Commutator Diameter (mm): 24.8换向器直径
Commutator Length (mm): 14换向器长度
Commutator Insulation (mm): 1换向器绝缘厚度
Brush Width (mm): 5.2电刷厚度
Brush Length (mm): 12电刷长度
Number of Brush Pairs: 2电刷对数
Press per Unit Area (g/mm^2): 2每对电刷压力
Frictional Coefficient: 0.25电刷摩擦系数
MATERIAL CONSUMPTION原料耗用
Armature Copper Density (kg/m^3): 8900电枢铜密度
Permanent Magnet Density (kg/m^3): 7800磁钢密度
Armature Core Steel Density (kg/m^3): 7650电枢铁芯密度
Rotor Core Steel Density (kg/m^3): 7800转子铁芯密度
Armature Copper Weight (kg): 0.064341电枢铜重量
Permanent Magnet Weight (kg): 0.0623059磁钢重量
Armature Core Steel Weight (kg): 0.238044电枢铁芯重量
Rotor Core Steel Weight (kg): 0.135247转子铁芯重量
Total Net Weight (kg): 0.499938总净重
Armature Core Steel Consumption (kg): 0.595437电枢铁芯消耗
Rotor Core Steel Consumption (kg): 0.926424转子铁芯消耗
NO-LOAD MAGNETIC DATA空载磁路数据
Rotor-Teeth Flux Density (Tesla): 1.8204转子齿部磁通密度
Rotor-Yoke Flux Density (Tesla): 1.24225转子轭磁通密度
Stator-Yoke Flux Density (Tesla): 2.24879定子轭磁通密度
Air-Gap Flux Density (Tesla): 0.510034空气磁通密度
Magnet Flux Density (Tesla): 0.492839磁铁磁通密度
Rotor-Teeth Ampere Turns (A.T): 119.12转子齿部安培匝数
Rotor-Yoke Ampere Turns (A.T): 0.924937转子轭安培匝数
Stator-Yoke Ampere Turns (A.T): 292.855定子轭安培匝数
Air-Gap Ampere Turns (A.T): 237.887空间隙安培匝数
Magnet Ampere Turns (A.T): -651.074磁铁安培匝数
Armature Reactive Ampere Turns
at Start Operation (A.T): 4193.95在工作起点电枢反冲安培匝数
Leakage-Flux Factor: 1泄露溶解系数
Correction Factor for Magnetic矫正磁性因子
Circuit Length of Rotor Yoke: 0.566496线路转子轭长度
Correction Factor for Magnetic
Circuit Length of Stator Yoke: 0.335848线路定子轭长度
No-Load Speed (rpm): 67502.1空载转速
No-Load Current (A): 60.0245空载电流
No-Load Input Power (W): 720.294空载输入功率
Torque Constant KT (Nm/A): 0.00139239扭矩常量
Back-EMF Constant KE (Vs/rad): 0.00139239反电动势常量
Cogging Torque (N.m): 0.0288996齿轮扭矩
FULL-LOAD DATA负载数据
Input Current (A): 860.135输入电流
Armature Current (A): 107.517电枢电流
Armature Thermal Load (A^2/mm^3): 42702.2电枢热负荷
Specific Electric Loading (A/mm): 199.638电流线负荷
Armature Current Density (A/mm^2): 213.898电枢电流密度
Friction and Wind Loss (W): 21.137风摩损耗
Iron-Core Loss (W): 6.69386铁芯损耗
Armature Copper Loss (W): 8103.59电枢绕组铜损耗
Brush Loss (W): 1290.2电刷损耗
Total Loss (W): 9421.62总损耗
Output Power (W): 900输出功率
Input Power (W): 10321.6输入功率
Efficiency (%): 8.71956效率
Rated Speed (rpm): 7397.96额定转速
Rated Torque (N.m): 1.16172额定力矩
Locked-Rotor Torque (N.m): 1.33477锁定转子扭矩
Locked-Rotor Current (A): 958.617锁定转子电流
COMMUTATING DATA换向数据
Induced Voltage by Inductance (V): 6.65555自感应电压
Induced Voltage
by Armature Reaction Field (V): 0.439388电枢反力场感应电压
Induced Voltage by Main Field (V): 9.08597e-008主电场感应电压
Total Induced Voltage (V): 7.09494总感应电压
TRANSIENT FEA INPUT DATA 瞬间有限元分析输入数据
For Armature Winding:电枢绕组
Number of Turns: 140匝数
Parallel Branches: 8并联支路数
Terminal Resistance (ohm): 0.0109533绕组电阻
End Leakage Inductance (H): 1.51721e-006绕组端部漏电感
2D Equivalent Value: 两维电磁场分析的等效值
Equivalent Air-Gap Length (mm): 31.5等效轴向气隙长度
Equivalent Stator Stacking Factor: 0.95等效定子叠压系数
Equivalent Rotor Stacking Factor: 0.95等效转子叠压系数
Equivalent Br (Tesla): 0.856456等效剩磁感应
Equivalent Hc (kA/m): 681.566等效矫顽力
Estimated Rotor Inertial Moment (kg m^2): 0.000128047转动惯量估计
[ 本帖最后由 Gavin 于 2008-8-4 14:59 编辑 ] |
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