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Xakamaynta mootada dc bilaa burushka ah iyo habka nidaaminta xawaaraha

Dc matoor aan burush lahaynqaabdhismeedku waa mid macquul ah, xawaarkiisu asal ahaan waa xasiloon yahay, sidaas darteed guud ahaan, dhif iyo naadir in la xakameeyo xawaaraha waaweyn. Sababtoo ah matoorku wuxuu leeyahay codsiyo badan oo kala duwan waxaana loo isticmaali karaa mashiinno badan, waa lagama maarmaan in la hagaajiyo xawaaraha iyada oo loo eegayo waqtiyo kala duwan. Laakin kantaroolka mootooyinka dc bilaa burushka ah iyo habka nidaaminta xawaaraha wuxuu u baahan yahay qof walba inuu barto, si loo codsado dhakhso:

https://www.leader-w.com/08-burushless-motor.html

1. Iyada oo la xakameynayo nidaamka gariiradda tamarta, gariiradda ka soo horjeeda ayaa loo qaybiyaa koox, ta hadda jirtana waa la tamarinayaa si ay u abuurto goob magnet ah oo isku mid ah.

2. Tirada tirarka burushka dc motor waa saddex, si mid kasta oo ka mid ah "tirarka magnetic" waxaa loo samayn karaa si gaar ah si loo gaaro saamaynta goob magnetic. dhexda had iyo jeer waxay leedahay u janjeera in ay xajiyaan magnetic field in isla jihada oo waxay ku wareejin doontaa goobta magnetic wareegeysa.

H1H2H3 waa saddex dareemayaal Hall oo lagu dhejiyay farqiga hawada ee gariiradda kicinta, kaas oo loo isticmaalo sidii curiye si loo ogaado goobta magnetic. Korontada waxaa loo bedeli karaa iyadoo loo eegayo jihada magnetic field, iyo wax soo saarku waa calaamad dijital ah.

3. Gariiradda stator-ku waa la tamarinayaa iyadoo loo eegayo isku xigxiga soo socda, iyo goobta magnetic rotor iyo stator magnetic field waa inay lahaadaan xagal ku socda xaalad shaqo oo uu dib ugu soo celiyay dareeraha Hall.

Amarkiisu waa in la soo diro saddex lammaane oo gariirad ah oo shid ama damin ah, furayaashan waxaa lagu gaaraa iyada oo loo marayo transistor-ka.

Wareega saddex-waji ee BLDC waxaa lagu xaqiijin karaa in la tamarsiiyo ama la gooyo saddex lammaane oo transistor-ka ah si gaar ah.

4. Sida rotor-ku wareego, kartida soo jiidashada ee gariiradda kasta waxay ka socotaa meesha ugu sareysa ilaa eber iyo dib u soo noqoshada.Sababtoo ah marka gariiradda la tamarsiiyo jihada ka soo horjeeda, xoogga korantada ee gadaal ayaa xannibi doona korantada dambe, sidaas darteed qaybta mawjada trapezoidal ayaa noqon doonta. muuqda.The danab togan iyo taban ee qaybta trapezoidal eber waa ka soo horjeeda, sidaas darteed xaaladda shaqada ee stator motor waxaa lagu go'aamin karaa iyadoo la ogaanayo danab togan iyo taban ka dib markii comparator danab.

Maadaama barta eber ay ku taal bartamaha trapezoid-ka, wareegga BLDC waa la xakameyn karaa ka dib markii calaamadda xakamaynta ee isku xigxiga wakhtiga u dhiganta la soo saaro ka dib dib u dhac ku yimaada 30 °. Habkani xakamaynta uma baahna dareeraha Hall, iyo saddex fiilooyin ayaa kara wadoBLDCHaddii qaab-dhismeedka mawjada uu yahay mid aad u fiican, saddexda geesood ee korantada gariiradda waxaa lagu heli karaa iyada oo si toos ah loo dhexgeliyo danabka. Markaa mashiinka dc-ga aan burushka lahayn waa la xakameyn karaa.

5. Go'aami jihada bilawga ah, xooji gariiradda hoose ee jihadaas marka hore, ka dhig rotor-ka u rogo booska bilawga wakhti gaaban gudaheed, oo tamar geli mishiinka iyadoo la raacayo taxanaha soo socda ee ficilada.

Si loo hagaajiyo waxtarka isticmaalka burushka dc motor, waxaan u baahanahay inaan barano sida waafaqsan jawiga isticmaalka kala duwan, xakamaynta kala duwan iyo xakamaynta xawaaraha, hagaajinta waxtarka isticmaalka mashiinka, xakamaynta iyo habka xakamaynta xawaaraha ayaa lagu dabaqi karaa si loo hagaajiyo xawaaraha.


Waqtiga boostada: Mar-28-2020
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