YUK KO‘TARISH QURILMALARINI TEZLIGINI BOSHQARISH METODLARINI TAHLIL QILISH
Keywords:
Kalit so‘zlar: yuk ko‘tarish qurilmalari, elektr yuritma, tezlikni boshqarish, asinxron dvigatel, yulduz–uchburchak ulash, rotor qarshiligi, tiristorli boshqaruv, chastota o‘zgartirgich, energiya samaradorligi, mexanik kuchlar.Abstract
Annotatsiya
Ushbu maqolada yuk ko‘tarish qurilmalarida elektr yuritma tezligini
boshqarishning asosiy metodlari tizimli tahlil qilindi. Tadqiqotda asinxron dvigatellar
asosida ishlovchi yuk ko‘tarish mexanizmlarida qo‘llaniladigan yulduz–uchburchak
ulash, rotor chulg‘amiga qo‘shimcha qarshilik ulash, rotor kuchlanishini tiristorlar
orqali boshqarish hamda chastota o‘zgartirgich asosida tezlikni rostlash usullari
o‘rganildi. Har bir metod ishga tushirish toki va momenti, tezlikni rostlash imkoniyati,
energiya samaradorligi hamda mexanik tizimga ta’siri nuqtayi nazaridan foiz
ko‘rsatkichlar asosida baholandi. Tahlil natijalari chastota o‘zgartirgich orqali
boshqarish usuli ishga tushirish tokini 50–70 % ga, mexanik zarbalarni 60–80 % gacha
kamaytirishini hamda elektr energiyasi sarfini 20–35 % gacha qisqartirishini ko‘rsatdi.
Olingan natijalar yuk ko‘tarish qurilmalarida energiya tejamkorligi, ekspluatatsion
ishonchlilik va xavfsizlikni oshirishda zamonaviy tezlikni boshqarish usullarini
qo‘llash maqsadga muvofiqligini asoslaydi.
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