电机方向课程设计

B

o

M

I

,

P

n

N

N

I

kW

P

N

N

N

p

q

mpq

p

p

p

p

l

li

K

P

pE N

PP

K

NE

dp

dp

K

K

p Nm

r

m

dp

dp

p•

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K

K

p

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•

m

il

p

m

m

i

m

/

i

m

(

i

i

)

/

ml

m

ip

p

mi10．气隙的确定

l

i

i

mml

l

m

m i

m

m i

mi11．极距

i

m

m

m

13．定子绕组采用单层绕组，交叉式，节距

1-9，2-10，11-1214．为了削弱齿谐波磁场的影响，转子采用斜槽，一般斜一个定子齿距

b

m15.设计定子绕组

N

N

m

N

N

J

J I

I

J

mm

I

N

mmi

N

d

mm

i d

mm

mmN

mm i

i

[i

[

)]

b

]

m

h

h

mb

mi

r

b

r

m

mm

mmi

ri i i

mN

N

d

i

K

p

qq

d

p

p

K

dp

K

Kd

p

N

K

dp

21.设计转子槽形与转子绕组I

I

Ndp

J

mm

b

I

J

mm

mmi

i

[

)]

b

]

m

mi

i

b

mmi

i

bi

i

(b

i

bi

)

)m

m

b

b

b

b

m

m

I

I

p

I

J

mm

mm

J

J

mm

m

)

E LE

) L

N

Nm

E Nm dp

Wb

Wb

lb

mi

i

i p

lb

i

i

i

p

m

i

h

i

h

m

rj

m

mj

l

m

mj

i j

l

m

mj

i j

l

m

m F

p

F

Fii

Fii

b

)b

cm

cmi i

m

m

b

)

)

)

)

b

b

b

33.齿部磁路计算长度 L

r

m

mi L

r

mi 34.轭部磁路计算长度

)p

m

mj

(

)

j

)

)p

m

mj

(

)

j35.气隙磁压降F

36.齿部磁压降F

L

i i iF

L

i i i37.饱和系数F

F

Fi

Fi

F

38.定子轭部磁密

j

j

39.转子轭部磁密

j

j

40.从

j

cm

j

cm41.轭部磁压降：其中轭部磁位降校正系数由资料的附图查出

C

j

j

jF

L

j j j j

Cj

j

j

F

L

j j j j42.每极磁势F

F

F

F

F

F i i

j

j

43.满载磁化电流：m

N

I

m

N

m

dp

44.磁化电流标么值I*

m

ImIkW

45.励磁电抗

ms

m

Ndp

p

l

*

ms

IkWms

N

il

l

K

=0.195+1.2×0.09929=0.314mi l

l

d

=0.165+2×0.015=0.195m

[

)

r

]

/p=π[0.141+2(0.8+0.924)+(14.5-0.924)×10+4.4×10

≤1,取

47．单层线圈端部平均长l

d

K

E 48．漏抗系数dpN

(

N

K )

l

P

/m

dpN

N

4×

×50×0.4

×10（0.9598×192×0.163×7.5×10/3×2×49．定子槽比漏磁导

K

K

u u L

L=1×0.410+1×0.830

u

h

b

hb

b

L

h

r

r

50．定子槽漏抗

*

m

C

K

l

dp

51．定子谐波漏抗

m

K K

*

dp

52．定子端部漏抗E

E

K l

*

l

)CE

dp

53．定子漏抗

*

*

*

E=（0.440+0.5877+0.27）54．转子槽比漏磁导

u L

uu

h

b

L

hb

b

L

55．转子槽漏抗

*

m

l

56．转子谐波漏抗

*

m

K

57．转子端部漏抗

p

p

l

E

*

l

l条

C

)

58．转子斜槽漏抗

*

b

)

*59．转子漏抗

*

*

*

*

*

E

60．总漏抗

*

*

*

61．定子直流电阻N

N

62．定子相电阻标幺值

IN

63．有效材料

Cl

N

N

W =1.05×0.314×32×36×1.0936×10

K

l

=0.95×0.163×（0.22+0.005）

64．转子电阻

K

L

m

(

N

K

dp

)

m

(

N

K

)

dpp

I

I

N

I I

N

=1.0216×0.13944×(1.1236)×[1+(1.0216×0.1394×1.1236)

ms

*

67．满载时定子电流无功分量标么值

L

=1－(1.1236×0.0207+0.65×0.0491)

L

L

L

j

L

j

L

=46.8×10

=53.4×10

×78.81×10

×27.69×10

F

K

F

F

F

F

j

F

j

F

mm

m

N

K

dp

I*

(Ip

I)

)

I

I

*

I

1.249×6.58=8.51A

N

N

mm

m

N

i

m

(I

p

I

)

)

I

*

I

m

N

K

dp

I

I

p

J

I

mmJ

I

mm

*

I

*

*

0.0347×7.5×10N

I

*

*

=0.0344×7.5×10

=4×2×2.934×10×78.81×10×7.8×10

=0.02×7.5×10

×(0.22)

=52.7/7.5×10

=4×2×8.26×10×15.97×10

=2×5.10×14.43=147.2

=2.5×6.80×4.116=69.97

=217.17/7.5×10

=1－0.1251/1.1251=0.869%(87%－86.9%)/87%=0.115%<0.5%

*

*

*

*

*

N

=60×50/2×(1－0.0319)

*

(

*

(

))

))

) =59.1×32×0.707×[1+0.9598×1×(36/32)]×

×2836.5/2×0.4×10

=(12.3-3.5)×(1－0.44)103.齿顶漏磁饱和引起的转子齿顶宽度的减少

=(16.1－1)×(1－0.44)104.起动时定子槽比漏磁导

uu

L

u

h

hb

b

105.起动时定子槽漏抗

106.起动时定子谐波漏抗

107.起动时定子漏抗

108.考虑集肤效应转子导条相对高度

b

b

×23×10√50/0.0434×10

109.转子电阻增加系数和电抗减少系数 110.起动时转子槽比率磁导

(

K