Galimoto ya DC yopanda burashi(BLDC) ndi mota yogwira ntchito bwino kwambiri, yopanda phokoso lochepa, komanso yokhalitsa nthawi yayitali yomwe imagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana, monga makina odziyimira pawokha m'mafakitale, zida zamagetsi, magalimoto amagetsi, ndi zina zotero. Kuwongolera liwiro ndi ntchito yofunika kwambiri yowongolera mota ya DC yopanda burashi. Njira zingapo zodziwika bwino zowongolera liwiro la mota ya DC yopanda burashi zidzafotokozedwa pansipa.
1. Kulamulira liwiro la voliyumu
Kulamulira liwiro la magetsi ndi njira yosavuta kwambiri yolamulira liwiro, yomwe imalamulira liwiro la mota posintha magetsi a DC. Magetsi akakwera, liwiro la mota lidzawonjezekanso; Mosiyana ndi zimenezi, magetsi akachepa, liwiro la mota lidzachepanso. Njirayi ndi yosavuta kugwiritsa ntchito, koma kwa magalimoto amphamvu kwambiri, mphamvu ya liwiro la magetsi si yabwino, chifukwa mphamvu ya mota idzachepa pamene magetsi akuwonjezeka.
2. Kulamulira liwiro la PWM
Kulamulira liwiro la PWM (Pulse Width Modulation) ndi njira yodziwika bwino yolamulira liwiro la mota, yomwe imalamulira liwiro la mota mwa kusintha kayendedwe ka ntchito ya chizindikiro cha PWM. Pamene kayendedwe ka ntchito ya chizindikiro cha PWM kakukwera, mphamvu yapakati ya mota imawonjezekanso, motero imawonjezera liwiro la mota; Mosiyana ndi zimenezi, kayendedwe ka ntchito ya chizindikiro cha PWM kakuchepa, liwiro la mota limachepanso. Njirayi imatha kukwaniritsa kuwongolera liwiro molondola ndipo ndi yoyenera ma mota a DC opanda brushless okhala ndi mphamvu zosiyanasiyana.
3. Kulamulira liwiro la mayankho a sensor
Ma mota a DC opanda burashi nthawi zambiri amakhala ndi masensa a Hall kapena ma encoder. Kudzera mu ndemanga ya sensa ya liwiro la mota ndi malo ake, kuwongolera liwiro lotsekedwa kumatha kuchitika. Kuwongolera liwiro lotsekedwa kumatha kupititsa patsogolo kukhazikika kwa liwiro ndi kulondola kwa mota, ndipo ndikoyenera pazochitika zomwe zimafunikira liwiro lalikulu, monga zida zamakanika ndi makina odziyimira pawokha.
4. Malamulo a liwiro la ndemanga omwe alipo panopa
Kulamulira liwiro la mayankho apano ndi njira yolamulira liwiro kutengera mphamvu ya injini, yomwe imalamulira liwiro la injini poyang'anira mphamvu ya injini. Pamene katundu wa injini ukuwonjezeka, mphamvu ya injini nayonso imawonjezeka. Panthawiyi, liwiro lokhazikika la injini likhoza kusungidwa mwa kuwonjezera mphamvu yamagetsi kapena kusintha kayendedwe ka ntchito ya chizindikiro cha PWM. Njirayi ndi yoyenera pazochitika zomwe mphamvu ya injini imasintha kwambiri ndipo imatha kukwaniritsa magwiridwe antchito abwino.
5. Malo opanda mphamvu ya maginito komanso malamulo othamanga
Kulamulira liwiro la malo a maginito opanda sensor ndi ukadaulo wapamwamba wowongolera liwiro womwe umagwiritsa ntchito chowongolera zamagetsi mkati mwa mota kuti chiziyang'anira ndikuwongolera mphamvu ya maginito ya mota nthawi yeniyeni kuti chikwaniritse kuwongolera kolondola kwa liwiro la mota. Njirayi siifuna masensa akunja, imachepetsa kapangidwe ka mota, imawongolera kudalirika ndi kukhazikika, ndipo ndi yoyenera pazochitika pomwe voliyumu ndi kulemera kwa mota kuli kwakukulu.
Mu ntchito zothandiza, njira zambiri zowongolera liwiro nthawi zambiri zimagwirizanitsidwa kuti zikwaniritse kuwongolera bwino komanso kokhazikika kwa mota. Kuphatikiza apo, njira yoyenera yowongolera liwiro imatha kusankhidwa malinga ndi ntchito ndi zofunikira zinazake. Ukadaulo wowongolera liwiro wa ma mota a DC opanda burashi ukukula nthawi zonse ndikusintha. M'tsogolomu, njira zatsopano zowongolera liwiro zidzawoneka kuti zikukwaniritsa zosowa za kuwongolera magalimoto m'magawo osiyanasiyana.
Wolemba: Sharon
Nthawi yotumizira: Epulo-24-2024