Shamol energ etika si

D=K_d∙D_a=0.55∙0.225=0.124 m
K_d ni kiymatini 3-jadvaldan olamiz.
Kutb bulinmasi
 3,14∙0.124/2∙4=0.194 m
Motorning xisobiy kuvvati
 7500∙0.98/(0.89∙0.88)= 9337 Bt
Elektromagnit yuklamani rasmdan aniklaymiz. D_a= 0.225 m
Bip katlamli chulgam uchun chulgam koeffitsienti K_ob=0,95
Motorning burchak tezligi
 2∙3,14∙50/4=57.0 rad/c
Xavo oraligining xisobiy uzunligi
 9337/(1.11 314 0.124 0,95 0.72)=0.107 m
 nisbatni xisoblaymiz
 0.107/0.194=0.55
nisbat berilgan chegarada bulgani uchun xisoblashlarni davom ettiramiz
Stator chulgami pazlari va uramlari sonin va kesim yuzasini aniklash
Tish bulinmasini chegaraviy kiymatlarini rasmdan aniklaymiz
Statordagi tishlar soni:
 3,14∙0.124/0.014=28
 3,14∙0.124/0.011=36
Pazlar sonini Z₁= 30 deb kabul kilamiz. u xolda:
 36/(2∙2∙3)=3
Statorning tish bulinmasi
 3,14∙0.124/(2∙2∙3∙3)=0.013 m
a=1 deb olib pazdagi effektiv utkazgichlar sonini aniklaymiz
 (0.225 - 0.124)/2-0.033=0.017 m
 3.14∙(0.124+2∙0.000)/30 - 0.005=0.011 m

=3.14∙(0.124+2∙0.001+0.0037)-30∙0.0054/(30 - 3,14)=0.009 m
 0.017 - 0.001+(0.0091 - 0.0037)/2=0.013 m
Pazning korpus izolyasiyasi kundalang kesim yuzasi
S_iz=b_iz∙(2∙h_n+b₁+b₂)=0,0004∙(2∙0.017 + 0.0112 +0.0091)= 21.8 mm²
Pazning kundalang kesim yuzasi
 0.013∙(0.0110 +0.0089)/2- 22∙10^-6=109.8∙10^-6
Pazning tuldirish koeffitsienti
 (1.792∙21∙1)/110=0.71

Stator chulg‘ami sxemasi

Asinxron generator stator chulg‘ami faza chulg‘amlaridan, faza chulg‘amlari qutb chulg‘amlaridan, kutb chulg‘amlari esa g‘altaklar guruhidan iborat bo‘ladi. G‘altaklar o‘ramlardan, uramlar esa parallel simlardan iborat bo‘ladi. Stator chulg‘amini tavsiflovchi asosiy kattaliklardan biri qutb chulg‘amida ketma-ket joylashtiriladigan g‘altaklar soni – q hisoblanadi. Hisoblashlar bo‘yicha bu 3 ga teng. Qutb chulg‘amining xar bir fazasiga 5 tadan g‘altak joylashtiramiz. 3 ta fazada 5 ta kiruvchi g‘altak bo‘lib qutb chulg‘ami 15 ta pazni egallaydi. Har bir fazada 1 ta qutb chulg‘ami borligini hisobga olib stator chulg‘ami 30 ta fazni egallaydi. Quyidagi sxemada stator chulg‘amining 1 ta qutb chulg‘ami ko‘rsatilgan.

7-rasm Stator chulg‘ami umumiy sxemasi

Rotorni xisoblash

Xavo oraligini rasmdan tanlaymiz Z₂= 22
Rotordagi pazlar soni
rotorning tashki diametri
D₂=D-2∙ δ =0.124 - 2∙0,0005=0.123 m
Tish bulinmasi
 3,14∙0.123/22=0.018 m
Rotorning ichki diametri
 0.225∙0,23=0.052 m
Rotorni xisoblash
 2∙3∙105∙0,95/22= 27
Rotor sterjenidagi tok
 0,9∙14.5∙ 27=355 A
Sterjenning kundalang kesim yuzasi
q_c=I₂/J₂=355.2/2.5=142 mm²
Tishning ruxsat etilgan kengligi
 0.735∙0.018∙0.107)/(1.8∙0.107∙0,97)=0.0075 M
Fazning ulchamlari

=(3,14∙(0.123 +0,0018) -22∙0.0075)/(3,14 +22)=0.0090 m


 0.0039)∙22/6,28=0.018 m
Fazning umumiy ulchamlari
 2∙0.017∙ 1700= 58.3 A
 2∙0.025∙ 1316= 66.9 A
Tish soxasining tuyinish koeffitsienti
 1+( 58.3 + 66.9)/716.9=1.17
Stator va rotor ramasidagi magnit kuchlanganlik.
 3,14∙(0.225 -0.033)/(2∙1)=0.301 m
 (0.123 -0.052)/2- 0.025=0.010 m
 3,14∙(0.052 -0.010)/(2∙1)=0.065 m
B_a= 1.4 Tl H_a= 320 A Bj= 0.81 Tl H_j= 132 A
 0.301∙ 320= 96.2 A
 0.065∙ 132= 8.6 A
Juft kutblardagi magnit kuchlanganlik
 716.9 + 58.3 + 66.9 + 96.2 + 8.6 = 947.0 A
Magnit zanjirning tuyinish koefitsienti
 947.0/716.9=1.32
947.0/(0,9∙3∙105∙0,95)= 3.44 A
Magnitlovchi tokning nisbiy kiymati
I_μ= I_μ /I₁= 3.44/ 14.5=0.24
Ish rejimi parametirlarini xisoblash.
 3,14∙(0.124+ 0.017)/(2∙1)=0.221 m
 1,3∙0.221 + 2∙0,001=0.308 m

8-rasm Olingan natijalar bo’yich parraklarning aylanish tezliklari ko’rinishi

Galtakning uzakdan chikib turgan kismining uzunligi
 0,4∙0.221+0,001=0.0985 m
Stator chulgami uramining urtacha uzunligi Faza chulgamidagi simning uzunligi
 0.828∙105= 86.97 m
Stator chulgamining aktiv karshiligi
 10^-6/41∙ 86.97/2.44∙10^-6∙1=0.870
Aktiv karshilikni nisbiy kiymati
 0.870∙ 15/220=0.057 Om
Rotor sterjeni karshiligi

 (10^-6/20,5)∙0.107/154.1∙10^-6= 33.72∙10^-6Om
Xalkaning urtacha diametri