Проверка вар8
.docxСредняя длинна витка обмотки:
lsr1 =
723.2399
мм
_______________________________________________________________________________________________________________________________________________________________________
Длина проводников фазы обмотки:
L1 =
115.7184
мм
_______________________________________________________________________________________________________________________________________________________________________
Активное сопротивление обмотки статора:
r1 =
0.6236
Ом
_______________________________________________________________________________________________________________________________________________________________________
Kvil =
0.4000
_______________________________________________________________________________________________________________________________________________________________________
Длина вылета лобовой части катушки:
lvil =
72.0369
мм
_______________________________________________________________________________________________________________________________________________________________________
Относительное значение:
rr1 =
0.0394
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
6.2
где для литой алюминиевой обмотки ротора p2115=(1e-006)/(20.5):
Сопротивление участка замыкающего кольца,заключонного между двумя соседними стержнями:
rkl =
8.6632e-007
Ом
_______________________________________________________________________________________________________________________________________________________________________
Сопротивление стержня:
rc =
3.1370e-005
Ом
_______________________________________________________________________________________________________________________________________________________________________
Активное сопротивление фазы алюминиевой обмотки ротора:
r2 =
5.0157e-005
Ом
_______________________________________________________________________________________________________________________________________________________________________
Приводим r2 к числу витков обмотки статора:
rr2 =
0.3472
Ом
здесь ksk=1
_______________________________________________________________________________________________________________________________________________________________________
Относительное значение:
rrr2 =
0.0219
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
6.3
kkbeta =
0.8750
_______________________________________________________________________________________________________________________________________________________________________
kbeta =
0.9063
_______________________________________________________________________________________________________________________________________________________________________
hk =
2.4818
мм
_______________________________________________________________________________________________________________________________________________________________________
h222 =
19.6417
мм
_______________________________________________________________________________________________________________________________________________________________________
betack =
0
kkck =
1.2776
_______________________________________________________________________________________________________________________________________________________________________
eps =
0.9740
_______________________________________________________________________________________________________________________________________________________________________
lamd1 =
1.0416
_______________________________________________________________________________________________________________________________________________________________________
laml1 =
1.2868
_______________________________________________________________________________________________________________________________________________________________________
lamp1 =
1.3269
_______________________________________________________________________________________________________________________________________________________________________
Индуктивное сопротивление фазы обмотки статора:
x1 =
1.2937
Ом
_______________________________________________________________________________________________________________________________________________________________________
Относительное значение:
xx1 =
0.0818
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
6.4
h0 =
29.1935
_______________________________________________________________________________________________________________________________________________________________________
eps1 =
1.0055
_______________________________________________________________________________________________________________________________________________________________________
lamd2 =
1.3460
_______________________________________________________________________________________________________________________________________________________________________
laml2 =
0.6639
_______________________________________________________________________________________________________________________________________________________________________
lamp2 =
2.5179
_______________________________________________________________________________________________________________________________________________________________________
Индуктивное сопротивление фазы обмотки ротора:
x2 =
2.5039e-004
Ом
_______________________________________________________________________________________________________________________________________________________________________
Приводим x2 к числу витков статора:
xx2 =
1.7333
Ом
_______________________________________________________________________________________________________________________________________________________________________
Относительное значение:
xxx2 =
0.1096
_______________________________________________________________________________________________________________________________________________________________________
***********************************************************************************************************************************************************************
***********************************************************************************************************************************************************************
7 Расчет потерь
=======================================================================================================================================================================
7.1
Удельные потери в стали:
p1050 =
2.5000
Вт/кг
_______________________________________________________________________________________________________________________________________________________________________
_______________________________________________________________________________________________________________________________________________________________________
Масса стали зубцов статора:
mz1 =
7.0187
кг
_______________________________________________________________________________________________________________________________________________________________________
Масса стали ярма статора:
ma =
24.7935
кг
_______________________________________________________________________________________________________________________________________________________________________
Потери в стали основные:
Pstosn =
372.8255
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.2
beta02 =
0.2391
_______________________________________________________________________________________________________________________________________________________________________
B02 =
0.2090
Тл
_______________________________________________________________________________________________________________________________________________________________________
удельные поверхностные потери в роторе:
ppov2 =
122.8474
Вт/м^2
_______________________________________________________________________________________________________________________________________________________________________
Поверхностные потери в роторе:
Ppov2 =
10.4159
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.3
Масса стали зубцов ротора:
mz2 =
10.7562
кг
_______________________________________________________________________________________________________________________________________________________________________
Амплитуда пульсаций индукции в среднем сечении зубцов:
Bpul2 =
0.0831
Тл
_______________________________________________________________________________________________________________________________________________________________________
Пульсационные потери в зубцах ротора:
Ppul2 =
42.3841
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.4 Сумма добавочных потерь в стали:
Pstdob =
52.8001
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.5 Полные потери в стали:
Pst =
425.6255
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.6
для двигателей с 2p=4 коэффициент:
Kt =
0.8931
_______________________________________________________________________________________________________________________________________________________________________
Механические потери:
Pmex =
192.8679
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.7
Электрические потери в статоре:
Pe1xx =
140.3013
Вт
_______________________________________________________________________________________________________________________________________________________________________
Активная составляющая тока холостого хода:
Ixxa =
0.6656
А
_______________________________________________________________________________________________________________________________________________________________________
Холостой ход двигателя:
Ixx =
8.6854
А
_______________________________________________________________________________________________________________________________________________________________________
Коэффициент мощьности при холостом ходу:
cosfixx =
0.0766
_______________________________________________________________________________________________________________________________________________________________________
***********************************************************************************************************************************************************************
***********************************************************************************************************************************************************************
8 Расчет рабочих характеристик
=======================================================================================================================================================================
8.1 Параметры:
r12 =
1.6572
Ом
_______________________________________________________________________________________________________________________________________________________________________
x12 =
42.5869
Ом
_______________________________________________________________________________________________________________________________________________________________________
c1 =
1.0304
_______________________________________________________________________________________________________________________________________________________________________
используем приближенную формулу:
gama =
0.0130
_______________________________________________________________________________________________________________________________________________________________________
Активная составляющая тока синхронного холостого хода:
I0a =
0.4501
А
_______________________________________________________________________________________________________________________________________________________________________
aa =
1.0617
_______________________________________________________________________________________________________________________________________________________________________
a1 =
0.6426
Ом
_______________________________________________________________________________________________________________________________________________________________________
bb =
0
_______________________________________________________________________________________________________________________________________________________________________
b =
3.1732
Ом
_______________________________________________________________________________________________________________________________________________________________________
Потери, не изменяющиеся при изменении скольжения:
Pnez =
0.6185
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 =
0.0219
=======================================================================================================================================================================
Номинальные данные спроектированного двигателя:
P2 =
22000
Вт
_______________________________________________________________________________________________________________________________________________________________________
U1 =
380
В
_______________________________________________________________________________________________________________________________________________________________________
I1nom =
24.0209
А
_______________________________________________________________________________________________________________________________________________________________________
cosfi =
0.9007
_______________________________________________________________________________________________________________________________________________________________________
n =
0.8920
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
Рабочие характеристики асинхронного двигателя:
P2 =
22000
Вт
_______________________________________________________________________________________________________________________________________________________________________
U1 =
380
В
_______________________________________________________________________________________________________________________________________________________________________
p =
2
_______________________________________________________________________________________________________________________________________________________________________
I0a =
0.4501
А
_______________________________________________________________________________________________________________________________________________________________________
I0p =
8.6599
А
_______________________________________________________________________________________________________________________________________________________________________
r1 =
0.6236
Ом
_______________________________________________________________________________________________________________________________________________________________________
rr2 =
0.3472
Ом
_______________________________________________________________________________________________________________________________________________________________________
c1 =
1.0304
_______________________________________________________________________________________________________________________________________________________________________
aa =
1.0617
_______________________________________________________________________________________________________________________________________________________________________
a1 =
0.6426
Ом
_______________________________________________________________________________________________________________________________________________________________________
bb =
0
_______________________________________________________________________________________________________________________________________________________________________
b =
3.1732
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
1
ans =
73.7247
ans =
36.8624
ans =
24.5749
ans =
18.4312
ans =
14.7449
ans =
12.2875
ans =
16.7953
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
2
Rs1 =
74.3673
Rs2 =
37.5049
Rs3 =
25.2175
Rs4 =
19.0737
Rs5 =
15.3875
Rs6 =
12.9300
Rsnom =
17.4379
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
3
Xs1 =
3.1732
Xs2 =
3.1732
Xs3 =
3.1732
Xs4 =
3.1732
Xs5 =
3.1732
Xs6 =
3.1732
Xsnom =
3.1732
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
4
Zs1 =
74.4350
Zs2 =
37.6389
Zs3 =
25.4163
Zs4 =
19.3359
Zs5 =
15.7113
Zs6 =
13.3137
Zsnom =
17.7242
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
5
III2s1 =
5.1051
III2s2 =
10.0959
III2s3 =
14.9510
III2s4 =
19.6526
III2s5 =
24.1864
III2s6 =
28.5420
III2snom =
21.4396
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
6
cosfifi2s1 =
0.9991
cosfifi2s2 =
0.9964
cosfifi2s3 =
0.9922
cosfifi2s4 =
0.9864
cosfifi2s5 =
0.9794
cosfifi2s6 =
0.9712
cosfifi2snom =
0.9838
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7
sinfifi2s1 =
0.0426
sinfifi2s2 =
0.0843
sinfifi2s3 =
0.1248
sinfifi2s4 =
0.1641
sinfifi2s5 =
0.2020
sinfifi2s6 =
0.2383
sinfifi2snom =
0.1790
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
8
I1as1 =
5.5506
I1as2 =
10.5101
I1as3 =
15.2841
I1as4 =
19.8362
I1as5 =
24.1381
I1as6 =
28.1696
I1asnom =
21.5433
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
9
I1ps1 =
8.8775
I1ps2 =
9.5110
I1ps3 =
10.5265
I1ps4 =
11.8850
I1ps5 =
13.5448
I1ps6 =
15.4626
I1psnom =
12.4982
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
10
I1s1 =
10.4699
I1s2 =
14.1747
I1s3 =
18.5583
I1s4 =
23.1242
I1s5 =
27.6787
I1s6 =
32.1344
I1snom =
24.9062
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
11
II2s1 =
5.2602
II2s2 =
10.4026
II2s3 =
15.4052
II2s4 =
20.2496
II2s5 =
24.9212
II2s6 =
29.4091
II2snom =
22.0909
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
12
P1s1 =
6.3277
P1s2 =
11.9815
P1s3 =
17.4239
P1s4 =
22.6133
P1s5 =
27.5174
P1s6 =
32.1133
P1snom =
24.5594
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
13
Pe1s1 =
0.2051
Pe1s2 =
0.3759
Pe1s3 =
0.6443
Pe1s4 =
1.0004
Pe1s5 =
1.4333
Pe1s6 =
1.9319
Pe1snom =
1.1605
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
14
Pe2s1 =
0.0288
Pe2s2 =
0.1127
Pe2s3 =
0.2472
Pe2s4 =
0.4271
Pe2s5 =
0.6469
Pe2s6 =
0.9009
Pe2snom =
0.5083
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
15
Pdobs1 =
0.0316
Pdobs2 =
0.0599
Pdobs3 =
0.0871
Pdobs4 =
0.1131
Pdobs5 =
0.1376
Pdobs6 =
0.1606
Pdobsnom =
0.1228
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
16
sumPs1 =
0.8840
sumPs2 =
1.1670
sumPs3 =
1.5972
sumPs4 =
2.1591
sumPs5 =
2.8363
sumPs6 =
3.6118
sumPsnom =
2.4101
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
17
P2s1 =
5.4436
P2s2 =
10.8145
P2s3 =
15.8268
P2s4 =
20.4542
P2s5 =
24.6812
P2s6 =
28.5015
P2snom =
22.1492
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
18
nus1 =
0.8603
nus2 =
0.9026
nus3 =
0.9083
nus4 =
0.9045
nus5 =
0.8969
nus6 =
0.8875
nusnom =
0.9019
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
19
cosfis1 =
0.5301
cosfis2 =
0.7415
cosfis3 =
0.8236
cosfis4 =
0.8578
cosfis5 =
0.8721
cosfis6 =
0.8766
cosfisnom =
0.8650
_______________________________________________________________________________________________________________________________________________________________________
***********************************************************************************************************************************************************************
***********************************************************************************************************************************************************************
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 =
22000
Вт
_______________________________________________________________________________________________________________________________________________________________________
U1 =
380
В
_______________________________________________________________________________________________________________________________________________________________________
p =
2
_______________________________________________________________________________________________________________________________________________________________________
I1nom =
24.0209
А
_______________________________________________________________________________________________________________________________________________________________________
II2snom =
22.0909
А
_______________________________________________________________________________________________________________________________________________________________________
x1 =
1.2937
Ом
_______________________________________________________________________________________________________________________________________________________________________
xx2 =
1.7333
Ом
_______________________________________________________________________________________________________________________________________________________________________
r1 =
0.6236
Ом
_______________________________________________________________________________________________________________________________________________________________________
rr2 =
0.3472
Ом
_______________________________________________________________________________________________________________________________________________________________________
snom =
0.0219
_______________________________________________________________________________________________________________________________________________________________________
Скольжения:
ss1 =
1
ss2 =
0.8000
ss3 =
0.5000
ss4 =
0.2000
ss5 =
0.1000
_______________________________________________________________________________________________________________________________________________________________________
Пусковые параметры:
x12p =
54.8882
Ом
_______________________________________________________________________________________________________________________________________________________________________
c1p =
1.0236
_______________________________________________________________________________________________________________________________________________________________________
Критическое скольжение:
sskr =
0.1158
_______________________________________________________________________________________________________________________________________________________________________
hc =
34.0313
мм
_______________________________________________________________________________________________________________________________________________________________________
Расчет токов в пусковом режиме асинхронного двигателя с короткозамкнутым ротором с учетом влияния эффекта вытеснения тока:
1
epsss1 =
2.1647
epsss1 =
2.1647
epsss2 =
1.9362
epsss2 =
1.9362
epsss3 =
1.5307
epsss3 =
1.5307
epsss4 =
0.9681
epsss4 =
0.9681
epsss5 =
0.6845
epsss5 =
0.6845
epssskr =
0.7368
epssskr =
0.7368
_______________________________________________________________________________________________________________________________________________________________________
2
fiss1 =
1.0853
fiss2 =
0.8202
fiss3 =
0.3480
fiss4 =
0.0968
fiss5 =
0.0685
fisskr =
0.0737
_______________________________________________________________________________________________________________________________________________________________________
3
hrss1 =
16.3194
hrss2 =
18.6960
hrss3 =
25.2454
hrss4 =
31.0275
hrss5 =
31.8509
hrsskr =
31.6960
мм
_______________________________________________________________________________________________________________________________________________________________________
4
brss1 =
6.8512
brss2 =
6.4583
brss3 =
5.3754
brss4 =
4.4193
brss5 =
4.2832
brsskr =
4.3088
мм
_______________________________________________________________________________________________________________________________________________________________________
qrss1 =
123.8705
qrss2 =
139.6861
qrss3 =
178.4373
qrss4 =
206.7545
qrss5 =
210.3374
qrsskr =
209.6717
мм^2
_______________________________________________________________________________________________________________________________________________________________________
krss1 =
1.7575
krss2 =
1.5585
krss3 =
1.2200
krss4 =
1.0529
krss5 =
1.0350
krsskr =
1.0383
_______________________________________________________________________________________________________________________________________________________________________
5
KRss1 =
1.4738
KRss2 =
1.3493
KRss3 =
1.1376
KRss4 =
1.0331
KRss5 =
1.0219
KRsskr =
1.0239
_______________________________________________________________________________________________________________________________________________________________________
6
rr2epsss1 =
0.5117
rr2epsss2 =
0.4685
rr2epsss3 =
0.3950
rr2epsss4 =
0.3587
rr2epsss5 =
0.3548
rr2epssskr =
0.3555
Ом
_______________________________________________________________________________________________________________________________________________________________________
7
fifiss1 =
0.7006
fifiss2 =
0.7660
fifiss3 =
0.8673
fifiss4 =
0.9611
fifiss5 =
0.9611
fifisskr =
0.9688
_______________________________________________________________________________________________________________________________________________________________________
kdss1 =
0.7006
kdss2 =
0.7660
kdss3 =
0.8673
kdss4 =
0.9611
kdss5 =
0.9611
kdsskr =
0.9688
_______________________________________________________________________________________________________________________________________________________________________
8
dellamp2epsss1 =
0.4163
dellamp2epsss2 =
0.3254
dellamp2epsss3 =
0.1845
dellamp2epsss4 =
0.0541
dellamp2epsss5 =
0.0541
dellamp2epssskr =
0.0434
_______________________________________________________________________________________________________________________________________________________________________
lamp2epsss1 =
2.1017
lamp2epsss2 =
2.1925
lamp2epsss3 =
2.3335
lamp2epsss4 =
2.4638
lamp2epsss5 =
2.4638
lamp2epssskr =
2.4745
_______________________________________________________________________________________________________________________________________________________________________
9
Kxss1 =
0.9081
Kxss2 =
0.9281
Kxss3 =
0.9593
Kxss4 =
0.9880
Kxss5 =
0.9880
Kxsskr =
0.9904
_______________________________________________________________________________________________________________________________________________________________________
10
xx2epsss1 =
1.5739
xx2epsss2 =
1.6087
xx2epsss3 =
1.6627
xx2epsss4 =
1.7126
xx2epsss5 =
1.7126
xx2epssskr =
1.7167
Ом
_______________________________________________________________________________________________________________________________________________________________________
11
Rpss1 =
1.1474
Rpss2 =
1.2230
Rpss3 =
1.4322
Rpss4 =
2.4594
Rpss5 =
4.2553
Rpsskr =
3.7649
Ом
_______________________________________________________________________________________________________________________________________________________________________
12
Xpss1 =
2.9047
Xpss2 =
2.9404
Xpss3 =
2.9956
Xpss4 =
3.0466
Xpss5 =
3.0466
Xpsskr =
3.0508
Ом
_______________________________________________________________________________________________________________________________________________________________________
13
II2pss1 =
121.6723
II2pss2 =
119.3253
II2pss3 =
114.4456
II2pss4 =
97.0515
II2pss5 =
72.6087
II2psskr =
78.4174
А
_______________________________________________________________________________________________________________________________________________________________________
14
I1pss1 =
125.1860
I1pss2 =
122.8501
I1pss3 =
117.9485
I1pss4 =
100.1697
I1pss5 =
75.0758
I1psskr =
81.0405
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 =
22000
Вт
_______________________________________________________________________________________________________________________________________________________________________
U1 =
380
В
_______________________________________________________________________________________________________________________________________________________________________
p =
2
_______________________________________________________________________________________________________________________________________________________________________
I1nom =
24.0209
А
_______________________________________________________________________________________________________________________________________________________________________
II2snom =
22.0909
А
_______________________________________________________________________________________________________________________________________________________________________
x1 =
1.2937
Ом
_______________________________________________________________________________________________________________________________________________________________________
xx2 =
1.7333
Ом
_______________________________________________________________________________________________________________________________________________________________________
x12p =
54.8882
Ом
_______________________________________________________________________________________________________________________________________________________________________
r1 =
0.6236
Ом
_______________________________________________________________________________________________________________________________________________________________________
rr2 =
0.3472
Ом
_______________________________________________________________________________________________________________________________________________________________________
snom =
0.0219
_______________________________________________________________________________________________________________________________________________________________________
CN =
1.0774
_______________________________________________________________________________________________________________________________________________________________________