Проверка вар11
.docxСредняя длинна витка обмотки:
lsr1 =
637.8743
мм
_______________________________________________________________________________________________________________________________________________________________________
Длина проводников фазы обмотки:
L1 =
130.1264
мм
_______________________________________________________________________________________________________________________________________________________________________
Активное сопротивление обмотки статора:
r1 =
0.8903
Ом
_______________________________________________________________________________________________________________________________________________________________________
Kvil =
0.5000
_______________________________________________________________________________________________________________________________________________________________________
Длина вылета лобовой части катушки:
lvil =
70.3347
мм
_______________________________________________________________________________________________________________________________________________________________________
Относительное значение:
rr1 =
0.0500
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
6.2
где для литой алюминиевой обмотки ротора p2115=(1e-006)/(20.5):
Сопротивление участка замыкающего кольца,заключонного между двумя соседними стержнями:
rkl =
9.3891e-007
Ом
_______________________________________________________________________________________________________________________________________________________________________
Сопротивление стержня:
rc =
3.9435e-005
Ом
_______________________________________________________________________________________________________________________________________________________________________
Активное сопротивление фазы алюминиевой обмотки ротора:
r2 =
7.0732e-005
Ом
_______________________________________________________________________________________________________________________________________________________________________
Приводим r2 к числу витков обмотки статора:
rr2 =
0.5215
Ом
здесь ksk=1
_______________________________________________________________________________________________________________________________________________________________________
Относительное значение:
rrr2 =
0.0293
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
6.3
kkbeta =
0.8750
_______________________________________________________________________________________________________________________________________________________________________
kbeta =
0.9063
_______________________________________________________________________________________________________________________________________________________________________
hk =
1.2464
мм
_______________________________________________________________________________________________________________________________________________________________________
h222 =
25.5175
мм
_______________________________________________________________________________________________________________________________________________________________________
betack =
0
kkck =
1.2505
_______________________________________________________________________________________________________________________________________________________________________
eps =
0.9633
_______________________________________________________________________________________________________________________________________________________________________
lamd1 =
0.9354
_______________________________________________________________________________________________________________________________________________________________________
laml1 =
1.2527
_______________________________________________________________________________________________________________________________________________________________________
lamp1 =
1.7219
_______________________________________________________________________________________________________________________________________________________________________
Индуктивное сопротивление фазы обмотки статора:
x1 =
1.3926
Ом
_______________________________________________________________________________________________________________________________________________________________________
Относительное значение:
xx1 =
0.0782
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
6.4
h0 =
25.9097
_______________________________________________________________________________________________________________________________________________________________________
eps1 =
1.0053
_______________________________________________________________________________________________________________________________________________________________________
lamd2 =
1.2043
_______________________________________________________________________________________________________________________________________________________________________
laml2 =
0.6972
_______________________________________________________________________________________________________________________________________________________________________
lamp2 =
2.9150
_______________________________________________________________________________________________________________________________________________________________________
Индуктивное сопротивление фазы обмотки ротора:
x2 =
2.4732e-004
Ом
_______________________________________________________________________________________________________________________________________________________________________
Приводим x2 к числу витков статора:
xx2 =
1.8235
Ом
_______________________________________________________________________________________________________________________________________________________________________
Относительное значение:
xxx2 =
0.1024
_______________________________________________________________________________________________________________________________________________________________________
***********************************************************************************************************************************************************************
***********************************************************************************************************************************************************************
7 Расчет потерь
=======================================================================================================================================================================
7.1
Удельные потери в стали:
p1050 =
2.5000
Вт/кг
_______________________________________________________________________________________________________________________________________________________________________
_______________________________________________________________________________________________________________________________________________________________________
Масса стали зубцов статора:
mz1 =
9.8084
кг
_______________________________________________________________________________________________________________________________________________________________________
Масса стали ярма статора:
ma =
22.0797
кг
_______________________________________________________________________________________________________________________________________________________________________
Потери в стали основные:
Pstosn =
386.8763
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.2
beta02 =
0.2855
_______________________________________________________________________________________________________________________________________________________________________
B02 =
0.2828
Тл
_______________________________________________________________________________________________________________________________________________________________________
удельные поверхностные потери в роторе:
ppov2 =
248.8033
Вт/м^2
_______________________________________________________________________________________________________________________________________________________________________
Поверхностные потери в роторе:
Ppov2 =
22.2077
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.3
Масса стали зубцов ротора:
mz2 =
10.3327
кг
_______________________________________________________________________________________________________________________________________________________________________
Амплитуда пульсаций индукции в среднем сечении зубцов:
Bpul2 =
0.1289
Тл
_______________________________________________________________________________________________________________________________________________________________________
Пульсационные потери в зубцах ротора:
Ppul2 =
220.3941
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.4 Сумма добавочных потерь в стали:
Pstdob =
242.6018
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.5 Полные потери в стали:
Pst =
629.4781
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.6
для двигателей с 2p=4 коэффициент:
Kt =
0.8463
_______________________________________________________________________________________________________________________________________________________________________
Механические потери:
Pmex =
282.4936
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7.7
Электрические потери в статоре:
Pe1xx =
238.2656
Вт
_______________________________________________________________________________________________________________________________________________________________________
Активная составляющая тока холостого хода:
Ixxa =
1.0090
А
_______________________________________________________________________________________________________________________________________________________________________
Холостой ход двигателя:
Ixx =
9.4985
А
_______________________________________________________________________________________________________________________________________________________________________
Коэффициент мощьности при холостом ходу:
cosfixx =
0.1062
_______________________________________________________________________________________________________________________________________________________________________
***********************************************************************************************************************************************************************
***********************************************************************************************************************************************************************
8 Расчет рабочих характеристик
=======================================================================================================================================================================
8.1 Параметры:
r12 =
1.4457
Ом
_______________________________________________________________________________________________________________________________________________________________________
x12 =
38.8414
Ом
_______________________________________________________________________________________________________________________________________________________________________
c1 =
1.0359
_______________________________________________________________________________________________________________________________________________________________________
используем приближенную формулу:
gama =
0.0208
_______________________________________________________________________________________________________________________________________________________________________
Активная составляющая тока синхронного холостого хода:
I0a =
0.5484
А
_______________________________________________________________________________________________________________________________________________________________________
aa =
1.0730
_______________________________________________________________________________________________________________________________________________________________________
a1 =
0.9223
Ом
_______________________________________________________________________________________________________________________________________________________________________
bb =
0
_______________________________________________________________________________________________________________________________________________________________________
b =
3.3991
Ом
_______________________________________________________________________________________________________________________________________________________________________
Потери, не изменяющиеся при изменении скольжения:
Pnez =
0.9120
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 =
0.0293
=======================================================================================================================================================================
Номинальные данные спроектированного двигателя:
P2 =
18500
Вт
_______________________________________________________________________________________________________________________________________________________________________
U1 =
380
В
_______________________________________________________________________________________________________________________________________________________________________
I1nom =
21.3426
А
_______________________________________________________________________________________________________________________________________________________________________
cosfi =
0.8670
_______________________________________________________________________________________________________________________________________________________________________
n =
0.8770
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
Рабочие характеристики асинхронного двигателя:
P2 =
18500
Вт
_______________________________________________________________________________________________________________________________________________________________________
U1 =
380
В
_______________________________________________________________________________________________________________________________________________________________________
p =
3
_______________________________________________________________________________________________________________________________________________________________________
I0a =
0.5484
А
_______________________________________________________________________________________________________________________________________________________________________
I0p =
9.4447
А
_______________________________________________________________________________________________________________________________________________________________________
r1 =
0.8903
Ом
_______________________________________________________________________________________________________________________________________________________________________
rr2 =
0.5215
Ом
_______________________________________________________________________________________________________________________________________________________________________
c1 =
1.0359
_______________________________________________________________________________________________________________________________________________________________________
aa =
1.0730
_______________________________________________________________________________________________________________________________________________________________________
a1 =
0.9223
Ом
_______________________________________________________________________________________________________________________________________________________________________
bb =
0
_______________________________________________________________________________________________________________________________________________________________________
b =
3.3991
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
1
ans =
111.9120
ans =
55.9560
ans =
37.3040
ans =
27.9780
ans =
22.3824
ans =
18.6520
ans =
19.1043
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
2
Rs1 =
112.8342
Rs2 =
56.8783
Rs3 =
38.2263
Rs4 =
28.9003
Rs5 =
23.3047
Rs6 =
19.5743
Rsnom =
20.0266
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
3
Xs1 =
3.3991
Xs2 =
3.3991
Xs3 =
3.3991
Xs4 =
3.3991
Xs5 =
3.3991
Xs6 =
3.3991
Xsnom =
3.3991
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
4
Zs1 =
112.8854
Zs2 =
56.9797
Zs3 =
38.3771
Zs4 =
29.0995
Zs5 =
23.5512
Zs6 =
19.8672
Zsnom =
20.3130
Ом
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
5
III2s1 =
3.3662
III2s2 =
6.6690
III2s3 =
9.9017
III2s4 =
13.0587
III2s5 =
16.1350
III2s6 =
19.1270
III2snom =
18.7072
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
6
cosfifi2s1 =
0.9995
cosfifi2s2 =
0.9982
cosfifi2s3 =
0.9961
cosfifi2s4 =
0.9932
cosfifi2s5 =
0.9895
cosfifi2s6 =
0.9853
cosfifi2snom =
0.9859
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
7
sinfifi2s1 =
0.0301
sinfifi2s2 =
0.0597
sinfifi2s3 =
0.0886
sinfifi2s4 =
0.1168
sinfifi2s5 =
0.1443
sinfifi2s6 =
0.1711
sinfifi2snom =
0.1673
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
8
I1as1 =
3.9131
I1as2 =
7.2055
I1as3 =
10.4112
I1as4 =
13.5176
I1as5 =
16.5145
I1as6 =
19.3933
I1asnom =
18.9918
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
9
I1ps1 =
9.5461
I1ps2 =
9.8426
I1ps3 =
10.3217
I1ps4 =
10.9701
I1ps5 =
11.7735
I1ps6 =
12.7172
I1psnom =
12.5751
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
10
I1s1 =
10.3170
I1s2 =
12.1982
I1s3 =
14.6605
I1s4 =
17.4089
I1s5 =
20.2816
I1s6 =
23.1911
I1snom =
22.7777
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
11
II2s1 =
3.4869
II2s2 =
6.9081
II2s3 =
10.2568
II2s4 =
13.5269
II2s5 =
16.7135
II2s6 =
19.8128
II2snom =
19.3779
А
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
12
P1s1 =
4.4609
P1s2 =
8.2143
P1s3 =
11.8688
P1s4 =
15.4101
P1s5 =
18.8265
P1s6 =
22.1084
P1snom =
21.6506
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
13
Pe1s1 =
0.2843
Pe1s2 =
0.3974
Pe1s3 =
0.5741
Pe1s4 =
0.8095
Pe1s5 =
1.0987
Pe1s6 =
1.4366
Pe1snom =
1.3858
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
14
Pe2s1 =
0.0190
Pe2s2 =
0.0747
Pe2s3 =
0.1646
Pe2s4 =
0.2863
Pe2s5 =
0.4370
Pe2s6 =
0.6141
Pe2snom =
0.5875
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
15
Pdobs1 =
0.0223
Pdobs2 =
0.0411
Pdobs3 =
0.0593
Pdobs4 =
0.0771
Pdobs5 =
0.0941
Pdobs6 =
0.1105
Pdobsnom =
0.1083
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
16
sumPs1 =
1.2376
sumPs2 =
1.4251
sumPs3 =
1.7100
sumPs4 =
2.0848
sumPs5 =
2.5418
sumPs6 =
3.0732
sumPsnom =
2.9935
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
17
P2s1 =
3.2233
P2s2 =
6.7892
P2s3 =
10.1588
P2s4 =
13.3253
P2s5 =
16.2846
P2s6 =
19.0352
P2snom =
18.6572
Вт
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
18
nus1 =
0.7226
nus2 =
0.8265
nus3 =
0.8559
nus4 =
0.8647
nus5 =
0.8650
nus6 =
0.8610
nusnom =
0.8617
_______________________________________________________________________________________________________________________________________________________________________
=======================================================================================================================================================================
19
cosfis1 =
0.3793
cosfis2 =
0.5907
cosfis3 =
0.7102
cosfis4 =
0.7765
cosfis5 =
0.8143
cosfis6 =
0.8362
cosfisnom =
0.8338
_______________________________________________________________________________________________________________________________________________________________________
***********************************************************************************************************************************************************************
***********************************************************************************************************************************************************************
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 =
18500
Вт
_______________________________________________________________________________________________________________________________________________________________________
U1 =
380
В
_______________________________________________________________________________________________________________________________________________________________________
p =
3
_______________________________________________________________________________________________________________________________________________________________________
I1nom =
21.3426
А
_______________________________________________________________________________________________________________________________________________________________________
II2snom =
19.3779
А
_______________________________________________________________________________________________________________________________________________________________________
x1 =
1.3926
Ом
_______________________________________________________________________________________________________________________________________________________________________
xx2 =
1.8235
Ом
_______________________________________________________________________________________________________________________________________________________________________
r1 =
0.8903
Ом
_______________________________________________________________________________________________________________________________________________________________________
rr2 =
0.5215
Ом
_______________________________________________________________________________________________________________________________________________________________________
snom =
0.0293
_______________________________________________________________________________________________________________________________________________________________________
Скольжения:
ss1 =
1
ss2 =
0.8000
ss3 =
0.5000
ss4 =
0.2000
ss5 =
0.1000
_______________________________________________________________________________________________________________________________________________________________________
Пусковые параметры:
x12p =
50.9188
Ом
_______________________________________________________________________________________________________________________________________________________________________
c1p =
1.0273
_______________________________________________________________________________________________________________________________________________________________________
Критическое скольжение:
sskr =
0.1640
_______________________________________________________________________________________________________________________________________________________________________
hc =
29.7812
мм
_______________________________________________________________________________________________________________________________________________________________________
Расчет токов в пусковом режиме асинхронного двигателя с короткозамкнутым ротором с учетом влияния эффекта вытеснения тока:
1
epsss1 =
1.8944
epsss1 =
1.8944
epsss2 =
1.6944
epsss2 =
1.6944
epsss3 =
1.3395
epsss3 =
1.3395
epsss4 =
0.8472
epsss4 =
0.8472
epsss5 =
0.5991
epsss5 =
0.5991
epssskr =
0.7673
epssskr =
0.7673
_______________________________________________________________________________________________________________________________________________________________________
2
fiss1 =
0.7680
fiss2 =
0.5180
fiss3 =
0.2198
fiss4 =
0.0847
fiss5 =
0.0599
fisskr =
0.0767
_______________________________________________________________________________________________________________________________________________________________________
3
hrss1 =
16.8448
hrss2 =
19.6189
hrss3 =
24.4155
hrss4 =
27.4552
hrss5 =
28.0980
hrsskr =
27.6590
мм
_______________________________________________________________________________________________________________________________________________________________________
4
brss1 =
5.4378
brss2 =
5.1373
brss3 =
4.6177
brss4 =
4.2884
brss5 =
4.2188
brsskr =
4.2663
мм
_______________________________________________________________________________________________________________________________________________________________________
qrss1 =
101.2326
qrss2 =
115.9011
qrss3 =
139.2966
qrss4 =
152.8326
qrss5 =
155.5666
qrsskr =
153.7043
мм^2
_______________________________________________________________________________________________________________________________________________________________________
krss1 =
1.5885
krss2 =
1.3874
krss3 =
1.1544
krss4 =
1.0522
krss5 =
1.0337
krsskr =
1.0462
_______________________________________________________________________________________________________________________________________________________________________
5
KRss1 =
1.3281
KRss2 =
1.2160
KRss3 =
1.0861
KRss4 =
1.0291
KRss5 =
1.0188
KRsskr =
1.0258
_______________________________________________________________________________________________________________________________________________________________________
6
rr2epsss1 =
0.6926
rr2epsss2 =
0.6341
rr2epsss3 =
0.5664
rr2epsss4 =
0.5367
rr2epsss5 =
0.5313
rr2epssskr =
0.5349
Ом
_______________________________________________________________________________________________________________________________________________________________________
7
fifiss1 =
0.7764
fifiss2 =
0.8264
fifiss3 =
0.9091
fifiss4 =
0.9651
fifiss5 =
0.9651
fifisskr =
0.9678
_______________________________________________________________________________________________________________________________________________________________________
kdss1 =
0.7764
kdss2 =
0.8264
kdss3 =
0.9091
kdss4 =
0.9651
kdss5 =
0.9651
kdsskr =
0.9678
_______________________________________________________________________________________________________________________________________________________________________
8
dellamp2epsss1 =
0.3423
dellamp2epsss2 =
0.2658
dellamp2epsss3 =
0.1392
dellamp2epsss4 =
0.0534
dellamp2epsss5 =
0.0534
dellamp2epssskr =
0.0494
_______________________________________________________________________________________________________________________________________________________________________
lamp2epsss1 =
2.5727
lamp2epsss2 =
2.6492
lamp2epsss3 =
2.7758
lamp2epsss4 =
2.8616
lamp2epsss5 =
2.8616
lamp2epssskr =
2.8657
_______________________________________________________________________________________________________________________________________________________________________
9
Kxss1 =
0.9289
Kxss2 =
0.9448
Kxss3 =
0.9711
Kxss4 =
0.9889
Kxss5 =
0.9889
Kxsskr =
0.9898
_______________________________________________________________________________________________________________________________________________________________________
10
xx2epsss1 =
1.6939
xx2epsss2 =
1.7229
xx2epsss3 =
1.7708
xx2epsss4 =
1.8032
xx2epsss5 =
1.8032
xx2epssskr =
1.8048
Ом
_______________________________________________________________________________________________________________________________________________________________________
11
Rpss1 =
1.6019
Rpss2 =
1.7047
Rpss3 =
2.0541
Rpss4 =
3.6471
Rpss5 =
6.3485
Rpsskr =
4.2404
Ом
_______________________________________________________________________________________________________________________________________________________________________
12
Xpss1 =
3.1328
Xpss2 =
3.1626
Xpss3 =
3.2118
Xpss4 =
3.2452
Xpss5 =
3.2452
Xpsskr =
3.2467
Ом
_______________________________________________________________________________________________________________________________________________________________________
13
II2pss1 =
107.9976
II2pss2 =
105.7682
II2pss3 =
99.6725
II2pss4 =
77.8399
II2pss5 =
53.2969
II2psskr =
71.1522
А
_______________________________________________________________________________________________________________________________________________________________________
14
I1pss1 =
111.6393
I1pss2 =
109.4012
I1pss3 =
103.2129
I1pss4 =
80.7790
I1pss5 =
55.5622
I1psskr =
73.8996
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 =
18500
Вт
_______________________________________________________________________________________________________________________________________________________________________
U1 =
380
В
_______________________________________________________________________________________________________________________________________________________________________
p =
3
_______________________________________________________________________________________________________________________________________________________________________
I1nom =
21.3426
А
_______________________________________________________________________________________________________________________________________________________________________
II2snom =
19.3779
А
_______________________________________________________________________________________________________________________________________________________________________
x1 =
1.3926
Ом
_______________________________________________________________________________________________________________________________________________________________________
xx2 =
1.8235
Ом
_______________________________________________________________________________________________________________________________________________________________________
x12p =
50.9188
Ом
_______________________________________________________________________________________________________________________________________________________________________
r1 =
0.8903
Ом
_______________________________________________________________________________________________________________________________________________________________________
rr2 =
0.5215
Ом
_______________________________________________________________________________________________________________________________________________________________________
snom =
0.0293
_______________________________________________________________________________________________________________________________________________________________________
CN =
1.0871
_______________________________________________________________________________________________________________________________________________________________________