電機(jī)方向課程設(shè)計(jì)

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?

?

K

K

p

Nm

?

?

m

il

p

m

m

i

m

/

i

m

(

i

i

)

/

ml

m

ip

p

mi10．氣隙的確定

l

i

i

mml

l

m

m i

m

m i

mi11．極距

i

m

m

m

13．定子繞組采用單層繞組，交叉式，節(jié)距

1-9，2-10，11-1214．為了削弱齒諧波磁場(chǎng)的影響，轉(zhuǎn)子采用斜槽，一般斜一個(gè)定子齒距

b

m15.設(shè)計(jì)定子繞組

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.設(shè)計(jì)轉(zhuǎn)子槽形與轉(zhuǎn)子繞組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.齒部磁路計(jì)算長(zhǎng)度 L

r

m

mi L

r

mi 34.軛部磁路計(jì)算長(zhǎng)度

)p

m

mj

(

)

j

)

)p

m

mj

(

)

j35.氣隙磁壓降F

36.齒部磁壓降F

L

i i iF

L

i i i37.飽和系數(shù)F

F

Fi

Fi

F

38.定子軛部磁密

j

j

39.轉(zhuǎn)子軛部磁密

j

j

40.從

j

cm

j

cm41.軛部磁壓降：其中軛部磁位降校正系數(shù)由資料的附圖查出

C

j

j

jF

L

j j j j

Cj

j

j

F

L

j j j j42.每極磁勢(shì)F

F

F

F

F

F i i

j

j

43.滿載磁化電流：m

N

I

m

N

m

dp

44.磁化電流標(biāo)么值I*

m

ImIkW

45.勵(lì)磁電抗

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．單層線圈端部平均長(zhǎng)l

d

K

E 48．漏抗系數(shù)dpN

(

N

K )

l

P

/m

dpN

N

4×

×50×0.4

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

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．定子諧波漏抗

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．轉(zhuǎn)子槽比漏磁導(dǎo)

u L

uu

h

b

L

hb

b

L

55．轉(zhuǎn)子槽漏抗

*

m

l

56．轉(zhuǎn)子諧波漏抗

*

m

K

57．轉(zhuǎn)子端部漏抗

p

p

l

E

*

l

l條

C

)

58．轉(zhuǎn)子斜槽漏抗

*

b

)

*59．轉(zhuǎn)子漏抗

*

*

*

*

*

E

60．總漏抗

*

*

*

61．定子直流電阻N

N

62．定子相電阻標(biāo)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．轉(zhuǎn)子電阻

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．滿載時(shí)定子電流無(wú)功分量標(biāo)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.齒頂漏磁飽和引起的轉(zhuǎn)子齒頂寬度的減少

=(16.1－1)×(1－0.44)104.起動(dòng)時(shí)定子槽比漏磁導(dǎo)

uu

L

u

h

hb

b

105.起動(dòng)時(shí)定子槽漏抗

106.起動(dòng)時(shí)定子諧波漏抗

107.起動(dòng)時(shí)定子漏抗

108.考慮集膚效應(yīng)轉(zhuǎn)子導(dǎo)條相對(duì)高度

b

b

×23×10√50/0.0434×10

109.轉(zhuǎn)子電阻增加系數(shù)和電抗減少系數(shù) 110.起動(dòng)時(shí)轉(zhuǎn)子槽比率磁導(dǎo)

(

K