Yiziphi izindlela zokunciphisa amandla okuqala enjini?

1. Ukuqala okuqondile

Ukuqala okuqondile inqubo yokuxhumanisa ngqoi-statorukugoqa kwe-injini kagesikuya ekuhlinzekweni kwamandla kanye nokuqala ku-voltage elinganisiwe. Inezici ze-torque ephezulu yokuqala kanye nesikhathi esifushane sokuqala, futhi iyindlela yokuqala elula, engabizi kakhulu, futhi ethembekile kakhulu. Uma uqala ku-voltage egcwele, ugesi uphezulu futhi i-torque yokuqala ayinkulu, okwenza kube lula ukuyisebenzisa futhi isheshe ukuqala. Kodwa-ke, le ndlela yokuqala inezidingo eziphezulu zomthamo wegridi kanye nomthwalo, futhi ifaneleka kakhulu kuma-motor okuqala angaphansi kwe-1W.

2.Ukuqala kokumelana nochungechunge lwezimoto

Ukuqala ukumelana nochungechunge lwenjini kuyindlela yokunciphisa ukuqala kwe-voltage. Ngesikhathi senqubo yokuqalisa, i-resistor ixhunywe ngochungechunge kusekethe yokugoqa i-stator. Lapho ugesi wokuqalisa udlula, kwehla i-voltage ku-resistor, okunciphisa i-voltage esetshenziswa ku-i-statorukugoqa. Lokhu kungafeza umgomo wokunciphisa ugesi oqalayo.

3.Ukuqala kwe-transformer yokuxhumanisa ngokwayo

Ukusebenzisa ukunciphisa i-multi tap voltage ye-autotransformer akugcini nje ngokuhlangabezana nezidingo zokuqala umthwalo ohlukene, kodwa futhi kuthole i-torque enkulu yokuqala. Kuyindlela yokuqala yokunciphisa i-voltage esetshenziswa kakhulu ukuqala ama-motor amakhulu. Inzuzo yayo enkulu ukuthi i-torque yokuqala inkulu. Uma i-winding tap iku-80%, i-torque yokuqala ingafinyelela ku-64% we-torque yokuqala eqondile, futhi i-torque yokuqala ingalungiswa nge-tap. I-akhawunti esemthethweni ethi “Mechanical Engineering Literature”, isiteshi sikaphethiloli sonjiniyela!

4. Ukuqala Kokunciphisa Ukucindezeleka Kwe-Delta Yezinkanyezi

Kwenjini yekheji ye-squirrel engahambisani nemoto esebenza ngokujwayelekilei-statorukugoqa okuxhunywe ngendlela engunxantathu, uma ukugoqa kwe-stator kuxhunywe ngesimo senkanyezi ngesikhathi sokuqala bese kuxhunywe ngesimo sonxantathu ngemva kokuqala, kunganciphisa amandla okuqala futhi kunciphise umthelela wawo kugridi yamandla. Le ndlela yokuqala ibizwa ngokuthi ukuqala kwe-star delta decompression, noma ukuqala kwe-star delta (y&starting).

Uma usebenzisa indlela yokuqala ye-star delta, ugesi oqalayo uyingxenye eyodwa kwezintathu kuphela zendlela yokuqala eqondile esebenzisa indlela yokuxhuma unxantathu. Ekuqaliseni kwe-star delta, ugesi oqalayo uphindwe izikhathi ezingu-2-2.3 kuphela. Lokhu kusho ukuthi uma usebenzisa ukuqala kwe-star delta, ugesi oqalayo uncishiswa ube ingxenye eyodwa kwezintathu zalokho okwakuyikho lapho uqala ngqo usebenzisa indlela yokuxhuma unxantathu.

Ifanele izimo lapho kungekho khona umthwalo noma umthwalo olula oqalayo. Futhi uma kuqhathaniswa nanoma yisiphi esinye isiqalisi se-vacuum, isakhiwo sayo silula kakhulu futhi intengo nayo ishibhile.

Ngaphezu kwalokho, indlela yokuqala i-star delta nayo inenzuzo, okungukuthi uma umthwalo ulula, ingavumela injini ukuthi isebenze ngaphansi kwendlela yokuxhuma i-star. Kuleli qophelo, i-torque ekalwe kanye nomthwalo kungalinganiswa, okungathuthukisa ukusebenza kahle kwenjini futhi konge ukusetshenziswa kukagesi.

5. Ukuqala kwesiguquli semvamisa (ukuqala okuthambile)

 I-frequency converter iyithuluzi lokulawula imoto elithuthuke kakhulu kwezobuchwepheshe, elisebenza ngokugcwele, nelisebenza kahle emkhakheni wokulawula izimoto zanamuhla. Ilungisa ijubane kanye ne-torque yemoto ngokushintsha imvamisa yegridi yamandla. Ngenxa yokubandakanyeka kobuchwepheshe be-elekthronikhi yamandla kanye nobuchwepheshe be-microcomputer, izindleko ziphezulu futhi izidingo zochwepheshe bokulungisa nazo ziphezulu. Ngakho-ke, isetshenziswa kakhulu emikhakheni edinga ukulawulwa kwejubane kanye nezidingo zokulawula isivinini esikhulu.