Проверка вар18
.docxСредняя длинна витка обмотки:
lsr1 =
777.5522
мм
_______________________________________________________________________________________________________________________________________________________________________
Длина проводников фазы обмотки:
L1 =
102.6369
мм
_______________________________________________________________________________________________________________________________________________________________________
Активное сопротивление обмотки статора:
r1 =
0.3373
Ом
_______________________________________________________________________________________________________________________________________________________________________
Kvil =
0.5000
_______________________________________________________________________________________________________________________________________________________________________
Длина вылета лобовой части катушки:
lvil =
77.4200
мм
_______________________________________________________________________________________________________________________________________________________________________
Относительное значение:
rr1 =
0.0362
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
6.2
где для литой алюминиевой обмотки ротора p2115=(1e-006)/(20.5):
Сопротивление участка замыкающего кольца,заключонного между двумя соседними стержнями:
rkl =
8.4237e-007
Ом
_______________________________________________________________________________________________________________________________________________________________________
Сопротивление стержня:
rc =
4.4001e-005
Ом
_______________________________________________________________________________________________________________________________________________________________________
Активное сопротивление фазы алюминиевой обмотки ротора:
r2 =
7.0807e-005
Ом
_______________________________________________________________________________________________________________________________________________________________________
Приводим r2 к числу витков обмотки статора:
rr2 =
0.2186
Ом
здесь ksk=1
_______________________________________________________________________________________________________________________________________________________________________
Относительное значение:
rrr2 =
0.0235
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
6.3
kkbeta =
0.8750
_______________________________________________________________________________________________________________________________________________________________________
kbeta =
0.9063
_______________________________________________________________________________________________________________________________________________________________________
hk =
1.6133
мм
_______________________________________________________________________________________________________________________________________________________________________
h222 =
28.5174
мм
_______________________________________________________________________________________________________________________________________________________________________
betack =
0
kkck =
1.2503
_______________________________________________________________________________________________________________________________________________________________________
eps =
0.9632
_______________________________________________________________________________________________________________________________________________________________________
lamd1 =
0.9528
_______________________________________________________________________________________________________________________________________________________________________
laml1 =
0.9932
_______________________________________________________________________________________________________________________________________________________________________
lamp1 =
1.7758
_______________________________________________________________________________________________________________________________________________________________________
Индуктивное сопротивление фазы обмотки статора:
x1 =
0.7685
Ом
_______________________________________________________________________________________________________________________________________________________________________
Относительное значение:
xx1 =
0.0825
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
6.4
h0 =
29.8337
_______________________________________________________________________________________________________________________________________________________________________
eps1 =
1.0053
_______________________________________________________________________________________________________________________________________________________________________
lamd2 =
1.2267
_______________________________________________________________________________________________________________________________________________________________________
laml2 =
0.5599
_______________________________________________________________________________________________________________________________________________________________________
lamp2 =
2.7973
_______________________________________________________________________________________________________________________________________________________________________
Индуктивное сопротивление фазы обмотки ротора:
x2 =
3.2591e-004
Ом
_______________________________________________________________________________________________________________________________________________________________________
Приводим x2 к числу витков статора:
xx2 =
1.0060
Ом
_______________________________________________________________________________________________________________________________________________________________________
Относительное значение:
xxx2 =
0.1080
_______________________________________________________________________________________________________________________________________________________________________
***********************************************************************************************************************************************************************
***********************************************************************************************************************************************************************
7 Расчет потерь
=======================================================================================================================================================================
7.1
Удельные потери в стали:
p1050 =
2.5000
Вт/кг
_______________________________________________________________________________________________________________________________________________________________________
_______________________________________________________________________________________________________________________________________________________________________
Масса стали зубцов статора:
mz1 =
16.9613
кг
_______________________________________________________________________________________________________________________________________________________________________
Масса стали ярма статора:
ma =
38.1949
кг
_______________________________________________________________________________________________________________________________________________________________________
Потери в стали основные:
Pstosn =
682.8490
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.2
beta02 =
0.2603
_______________________________________________________________________________________________________________________________________________________________________
B02 =
0.2558
Тл
_______________________________________________________________________________________________________________________________________________________________________
удельные поверхностные потери в роторе:
ppov2 =
254.3421
Вт/м^2
_______________________________________________________________________________________________________________________________________________________________________
Поверхностные потери в роторе:
Ppov2 =
35.5910
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.3
Масса стали зубцов ротора:
mz2 =
18.6807
кг
_______________________________________________________________________________________________________________________________________________________________________
Амплитуда пульсаций индукции в среднем сечении зубцов:
Bpul2 =
0.1081
Тл
_______________________________________________________________________________________________________________________________________________________________________
Пульсационные потери в зубцах ротора:
Ppul2 =
279.9108
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.4 Сумма добавочных потерь в стали:
Pstdob =
315.5018
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.5 Полные потери в стали:
Pst =
998.3508
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.6
для двигателей с 2p=4 коэффициент:
Kt =
0.7930
_______________________________________________________________________________________________________________________________________________________________________
Механические потери:
Pmex =
412.7757
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.7
Электрические потери в статоре:
Pe1xx =
272.6093
Вт
_______________________________________________________________________________________________________________________________________________________________________
Активная составляющая тока холостого хода:
Ixxa =
1.4770
А
_______________________________________________________________________________________________________________________________________________________________________
Холостой ход двигателя:
Ixx =
16.4789
А
_______________________________________________________________________________________________________________________________________________________________________
Коэффициент мощьности при холостом ходу:
cosfixx =
0.0896
_______________________________________________________________________________________________________________________________________________________________________
***********************************************************************************************************************************************************************
***********************************************************************************************************************************************************************
8 Расчет рабочих характеристик
=======================================================================================================================================================================
8.1 Параметры:
r12 =
0.8450
Ом
_______________________________________________________________________________________________________________________________________________________________________
x12 =
22.3845
Ом
_______________________________________________________________________________________________________________________________________________________________________
c1 =
1.0343
_______________________________________________________________________________________________________________________________________________________________________
используем приближенную формулу:
gama =
0.0133
_______________________________________________________________________________________________________________________________________________________________________
Активная составляющая тока синхронного холостого хода:
I0a =
0.8381
А
_______________________________________________________________________________________________________________________________________________________________________
aa =
1.0698
_______________________________________________________________________________________________________________________________________________________________________
a1 =
0.3489
Ом
_______________________________________________________________________________________________________________________________________________________________________
bb =
0
_______________________________________________________________________________________________________________________________________________________________________
b =
1.8711
Ом
_______________________________________________________________________________________________________________________________________________________________________
Потери, не изменяющиеся при изменении скольжения:
Pnez =
1.4111
кВт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
8.2 Рассчитываем рабочие характеристики для скольжений:
s1 =
0.0050
s2 =
0.0100
s3 =
0.0150
s4 =
0.0200
s5 =
0.0250
s6 =
0.0300
snom =
0.0235
=======================================================================================================================================================================
Номинальные данные спроектированного двигателя:
P2 =
37000
Вт
_______________________________________________________________________________________________________________________________________________________________________
U1 =
380
В
_______________________________________________________________________________________________________________________________________________________________________
I1nom =
40.7971
А
_______________________________________________________________________________________________________________________________________________________________________
cosfi =
0.8813
_______________________________________________________________________________________________________________________________________________________________________
n =
0.9027
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
Рабочие характеристики асинхронного двигателя:
P2 =
37000
Вт
_______________________________________________________________________________________________________________________________________________________________________
U1 =
380
В
_______________________________________________________________________________________________________________________________________________________________________
p =
3
_______________________________________________________________________________________________________________________________________________________________________
I0a =
0.8381
А
_______________________________________________________________________________________________________________________________________________________________________
I0p =
16.4126
А
_______________________________________________________________________________________________________________________________________________________________________
r1 =
0.3373
Ом
_______________________________________________________________________________________________________________________________________________________________________
rr2 =
0.2186
Ом
_______________________________________________________________________________________________________________________________________________________________________
c1 =
1.0343
_______________________________________________________________________________________________________________________________________________________________________
aa =
1.0698
_______________________________________________________________________________________________________________________________________________________________________
a1 =
0.3489
Ом
_______________________________________________________________________________________________________________________________________________________________________
bb =
0
_______________________________________________________________________________________________________________________________________________________________________
b =
1.8711
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
1
ans =
46.7672
ans =
23.3836
ans =
15.5891
ans =
11.6918
ans =
9.3534
ans =
7.7945
ans =
9.9649
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
2
Rs1 =
47.1161
Rs2 =
23.7325
Rs3 =
15.9380
Rs4 =
12.0407
Rs5 =
9.7024
Rs6 =
8.1434
Rsnom =
10.3138
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
3
Xs1 =
1.8711
Xs2 =
1.8711
Xs3 =
1.8711
Xs4 =
1.8711
Xs5 =
1.8711
Xs6 =
1.8711
Xsnom =
1.8711
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
4
Zs1 =
47.1532
Zs2 =
23.8062
Zs3 =
16.0474
Zs4 =
12.1852
Zs5 =
9.8811
Zs6 =
8.3557
Zsnom =
10.4822
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
5
III2s1 =
8.0588
III2s2 =
15.9623
III2s3 =
23.6798
III2s4 =
31.1853
III2s5 =
38.4571
III2s6 =
45.4782
III2snom =
36.2520
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
6
cosfifi2s1 =
0.9992
cosfifi2s2 =
0.9969
cosfifi2s3 =
0.9932
cosfifi2s4 =
0.9881
cosfifi2s5 =
0.9819
cosfifi2s6 =
0.9746
cosfifi2snom =
0.9839
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7
sinfifi2s1 =
0.0397
sinfifi2s2 =
0.0786
sinfifi2s3 =
0.1166
sinfifi2s4 =
0.1536
sinfifi2s5 =
0.1894
sinfifi2s6 =
0.2239
sinfifi2snom =
0.1785
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
8
I1as1 =
8.8906
I1as2 =
16.7510
I1as3 =
24.3564
I1as4 =
31.6535
I1as5 =
38.5994
I1as6 =
45.1613
I1asnom =
36.5079
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
9
I1ps1 =
16.7324
I1ps2 =
17.6672
I1ps3 =
19.1737
I1ps4 =
21.2014
I1ps5 =
23.6951
I1ps6 =
26.5969
I1psnom =
22.8839
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
10
I1s1 =
18.9477
I1s2 =
24.3460
I1s3 =
30.9978
I1s4 =
38.0978
I1s5 =
45.2921
I1s6 =
52.4113
I1snom =
43.0871
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
11
II2s1 =
8.3355
II2s2 =
16.5102
II2s3 =
24.4927
II2s4 =
32.2559
II2s5 =
39.7773
II2s6 =
47.0395
II2snom =
37.4966
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
12
P1s1 =
10.1353
P1s2 =
19.0961
P1s3 =
27.7663
P1s4 =
36.0850
P1s5 =
44.0033
P1s6 =
51.4839
P1snom =
41.6190
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
13
Pe1s1 =
0.3633
Pe1s2 =
0.5998
Pe1s3 =
0.9724
Pe1s4 =
1.4689
Pe1s5 =
2.0760
Pe1s6 =
2.7799
Pe1snom =
1.8788
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
14
Pe2s1 =
0.0456
Pe2s2 =
0.1787
Pe2s3 =
0.3934
Pe2s4 =
0.6822
Pe2s5 =
1.0375
Pe2s6 =
1.4509
Pe2snom =
0.9219
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
15
Pdobs1 =
0.0507
Pdobs2 =
0.0955
Pdobs3 =
0.1388
Pdobs4 =
0.1804
Pdobs5 =
0.2200
Pdobs6 =
0.2574
Pdobsnom =
0.2081
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
16
sumPs1 =
1.8707
sumPs2 =
2.2852
sumPs3 =
2.9157
sumPs4 =
3.7427
sumPs5 =
4.7446
sumPs6 =
5.8994
sumPsnom =
4.4199
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
17
P2s1 =
8.2646
P2s2 =
16.8109
P2s3 =
24.8506
P2s4 =
32.3424
P2s5 =
39.2587
P2s6 =
45.5845
P2snom =
37.1990
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
18
nus1 =
0.8154
nus2 =
0.8803
nus3 =
0.8950
nus4 =
0.8963
nus5 =
0.8922
nus6 =
0.8854
nusnom =
0.8938
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
19
cosfis1 =
0.4692
cosfis2 =
0.6880
cosfis3 =
0.7857
cosfis4 =
0.8308
cosfis5 =
0.8522
cosfis6 =
0.8617
cosfisnom =
0.8473
_______________________________________________________________________________________________________________________________________________________________________
***********************************************************************************************************************************************************************
***********************************************************************************************************************************************************************
9 Расчет пусковых характеристик
=======================================================================================================================================================================
Расчет токов с учетом изменения параметров под влиянием эффекта вытеснения тока (без учета влияния насыщения от полей рассеяния).
Расчет проводится в целях определения токов в пусковых режимах для дальнейшего учета влияния насыщения на пусковые характеристики двигателя.
P2 =
37000
Вт
_______________________________________________________________________________________________________________________________________________________________________
U1 =
380
В
_______________________________________________________________________________________________________________________________________________________________________
p =
3
_______________________________________________________________________________________________________________________________________________________________________
I1nom =
40.7971
А
_______________________________________________________________________________________________________________________________________________________________________
II2snom =
37.4966
А
_______________________________________________________________________________________________________________________________________________________________________
x1 =
0.7685
Ом
_______________________________________________________________________________________________________________________________________________________________________
xx2 =
1.0060
Ом
_______________________________________________________________________________________________________________________________________________________________________
r1 =
0.3373
Ом
_______________________________________________________________________________________________________________________________________________________________________
rr2 =
0.2186
Ом
_______________________________________________________________________________________________________________________________________________________________________
snom =
0.0235
_______________________________________________________________________________________________________________________________________________________________________
Скольжения:
ss1 =
1
ss2 =
0.8000
ss3 =
0.5000
ss4 =
0.2000
ss5 =
0.1000
_______________________________________________________________________________________________________________________________________________________________________
Пусковые параметры:
x12p =
29.3496
Ом
_______________________________________________________________________________________________________________________________________________________________________
c1p =
1.0262
_______________________________________________________________________________________________________________________________________________________________________
Критическое скольжение:
sskr =
0.1245
_______________________________________________________________________________________________________________________________________________________________________
hc =
34.0618
мм
_______________________________________________________________________________________________________________________________________________________________________
Расчет токов в пусковом режиме асинхронного двигателя с короткозамкнутым ротором с учетом влияния эффекта вытеснения тока:
1
epsss1 =
2.1667
epsss1 =
2.1667
epsss2 =
1.9379
epsss2 =
1.9379
epsss3 =
1.5321
epsss3 =
1.5321
epsss4 =
0.9690
epsss4 =
0.9690
epsss5 =
0.6852
epsss5 =
0.6852
epssskr =
0.7647
epssskr =
0.7647
_______________________________________________________________________________________________________________________________________________________________________
2
fiss1 =
1.0875
fiss2 =
0.8224
fiss3 =
0.3491
fiss4 =
0.0969
fiss5 =
0.0685
fisskr =
0.0765
_______________________________________________________________________________________________________________________________________________________________________
3
hrss1 =
16.3170
hrss2 =
18.6905
hrss3 =
25.2487
hrss4 =
31.0529
hrss5 =
31.8777
hrsskr =
31.6423
мм
_______________________________________________________________________________________________________________________________________________________________________
4
brss1 =
6.1945
brss2 =
5.9373
brss3 =
5.2269
brss4 =
4.5981
brss5 =
4.5088
brsskr =
4.5343
мм
_______________________________________________________________________________________________________________________________________________________________________
qrss1 =
108.6025
qrss2 =
123.0000
qrss3 =
159.6087
qrss4 =
188.1218
qrss5 =
191.8774
qrsskr =
190.8130
мм^2
_______________________________________________________________________________________________________________________________________________________________________
krss1 =
1.8375
krss2 =
1.6224
krss3 =
1.2503
krss4 =
1.0608
krss5 =
1.0400
krsskr =
1.0458
_______________________________________________________________________________________________________________________________________________________________________
5
KRss1 =
1.5204
KRss2 =
1.3868
KRss3 =
1.1555
KRss4 =
1.0378
KRss5 =
1.0249
KRsskr =
1.0285
_______________________________________________________________________________________________________________________________________________________________________
6
rr2epsss1 =
0.3323
rr2epsss2 =
0.3031
rr2epsss3 =
0.2526
rr2epsss4 =
0.2268
rr2epsss5 =
0.2240
rr2epssskr =
0.2248
Ом
_______________________________________________________________________________________________________________________________________________________________________
7
fifiss1 =
0.7000
fifiss2 =
0.7655
fifiss3 =
0.8670
fifiss4 =
0.9610
fifiss5 =
0.9610
fifisskr =
0.9678
_______________________________________________________________________________________________________________________________________________________________________
kdss1 =
0.7000
kdss2 =
0.7655
kdss3 =
0.8670
kdss4 =
0.9610
kdss5 =
0.9610
kdsskr =
0.9678
_______________________________________________________________________________________________________________________________________________________________________
8
dellamp2epsss1 =
0.4795
dellamp2epsss2 =
0.3748
dellamp2epsss3 =
0.2126
dellamp2epsss4 =
0.0623
dellamp2epsss5 =
0.0623
dellamp2epssskr =
0.0514
_______________________________________________________________________________________________________________________________________________________________________
lamp2epsss1 =
2.3178
lamp2epsss2 =
2.4225
lamp2epsss3 =
2.5847
lamp2epsss4 =
2.7350
lamp2epsss5 =
2.7350
lamp2epssskr =
2.7459
_______________________________________________________________________________________________________________________________________________________________________
9
Kxss1 =
0.8954
Kxss2 =
0.9182
Kxss3 =
0.9536
Kxss4 =
0.9864
Kxss5 =
0.9864
Kxsskr =
0.9888
_______________________________________________________________________________________________________________________________________________________________________
10
xx2epsss1 =
0.9008
xx2epsss2 =
0.9238
xx2epsss3 =
0.9594
xx2epsss4 =
0.9924
xx2epsss5 =
0.9924
xx2epssskr =
0.9948
Ом
_______________________________________________________________________________________________________________________________________________________________________
11
Rpss1 =
0.6784
Rpss2 =
0.7261
Rpss3 =
0.8557
Rpss4 =
1.5012
Rpss5 =
2.6360
Rpsskr =
2.1894
Ом
_______________________________________________________________________________________________________________________________________________________________________
12
Xpss1 =
1.6929
Xpss2 =
1.7164
Xpss3 =
1.7530
Xpss4 =
1.7868
Xpss5 =
1.7868
Xpsskr =
1.7893
Ом
_______________________________________________________________________________________________________________________________________________________________________
13
II2pss1 =
208.3664
II2pss2 =
203.8936
II2pss3 =
194.8055
II2pss4 =
162.8309
II2pss5 =
119.3257
II2psskr =
134.3908
А
_______________________________________________________________________________________________________________________________________________________________________
14
I1pss1 =
214.8129
I1pss2 =
210.3687
I1pss3 =
201.2494
I1pss4 =
168.5321
I1pss5 =
123.8016
I1psskr =
139.2888
А
_______________________________________________________________________________________________________________________________________________________________________
***********************************************************************************************************************************************************************
***********************************************************************************************************************************************************************
10 Расчет пусковых характеристик с учетом влияния вытеснения тока и насыщения от полей рассеяния
Расчет пусковых характеристик асинхронного двигателя с короткозамкнутым ротором с учетом эффекта вытеснения тока и насыщения от полей рассеяния
P2 =
37000
Вт
_______________________________________________________________________________________________________________________________________________________________________
U1 =
380
В
_______________________________________________________________________________________________________________________________________________________________________
p =
3
_______________________________________________________________________________________________________________________________________________________________________
I1nom =
40.7971
А
_______________________________________________________________________________________________________________________________________________________________________
II2snom =
37.4966
А
_______________________________________________________________________________________________________________________________________________________________________
x1 =
0.7685
Ом
_______________________________________________________________________________________________________________________________________________________________________
xx2 =
1.0060
Ом
_______________________________________________________________________________________________________________________________________________________________________
x12p =
29.3496
Ом
_______________________________________________________________________________________________________________________________________________________________________
r1 =
0.3373
Ом
_______________________________________________________________________________________________________________________________________________________________________
rr2 =
0.2186
Ом
_______________________________________________________________________________________________________________________________________________________________________
snom =
0.0235
_______________________________________________________________________________________________________________________________________________________________________
CN =
1.0902
_______________________________________________________________________________________________________________________________________________________________________