Yiziphi izindlela zokunciphisa ukuqala kwamandla enjini?

1. Ukuqala okuqondile

Ukuqala okuqondile kuyinqubo yokuxhuma i-statorukugoqa kwemotor kagesiekunikezeni amandla futhi iqala ku-voltage elinganiselwe.Inezici ze-torque ephezulu yokuqala nesikhathi esifushane sokuqala, futhi iyindlela yokuqala elula, eyonga kakhulu, futhi enokwethenjelwa kakhulu.Uma uqala nge-voltage egcwele, i-current iphezulu futhi i-torque yokuqala ayinkulu, okwenza kube lula ukusebenza futhi kusheshe ukuqala.Kodwa-ke, le ndlela yokuqala inezidingo eziphezulu zomthamo wegridi nomthwalo, futhi ifaneleka kakhulu ukuqalisa amamotho angaphansi kuka-1W.

2.Ukuphikiswa kochungechunge lwezimoto kuyaqala

Ukuqala kokumelana nochungechunge lwezimoto kuyindlela yokunciphisa ukuqala kwe-voltage.Phakathi nenqubo yokuqalisa, i-resistor ixhunywe ochungechungeni lwesekethe yokumangisa i-stator.Lapho ukuqalisa kwamanje kudlula, ukwehla kwe-voltage kukhiqizwa ku-resistor, kunciphisa i-voltage esetshenziswa ku-statorukusonga.Lokhu kungafeza umgomo wokunciphisa amandla okuqalisa.

3.Ukuqala kwe-self coupling transformer

Ukusebenzisa ukuncishiswa kwe-multitap voltage ye-autotransformer akukwazi ukuhlangabezana nezidingo zokulayisha okuhlukile kokuqala, kodwa futhi kuthola i-torque enkulu yokuqala.Kuyindlela evame ukusetshenziswa yokunciphisa i-voltage yokuqala ama-motor amandla amakhulu.Inzuzo yayo enkulu ukuthi i-torque yokuqala inkulu.Lapho umpompi osongwayo uku-80%, i-torque yokuqala ingafinyelela ku-64% we-torque yokuqala eqondile, futhi i-torque yokuqala ingalungiswa ngompompi.I-akhawunti esemthethweni ethi “Mechanical Engineering Literature”, igalaji likaphethiloli lonjiniyela!

4.Star Delta Decompression Start

Okwekheji le-squirrel motor asynchronous enokusebenza okujwayelekilestatori-winding exhunywe ngendlela engunxantathu, uma i-stator winding ixhunywe esimweni senkanyezi ngesikhathi sokuqala bese ixhunywe ngesimo sikanxantathu ngemva kokuqala, inganciphisa imanje yokuqala futhi inciphise umthelela wayo kugridi yamandla.Le ndlela yokuqala ibizwa ngokuthi i-star delta decompression starting, noma i-star delta iqala (y&starting).

Uma usebenzisa indlela yokuqala ye-delta yenkanyezi, isiqalo samanje siyingxenye eyodwa kwezintathu kuphela yendlela yokuqala eqondile yokuqala usebenzisa indlela yokuxhuma unxantathu.Lapho i-delta yenkanyezi iqala, isikhathi sokuqala siyizikhathi ezingama-2-2.3 kuphela.Lokhu kusho ukuthi uma usebenzisa i-delta yenkanyezi ukuqalisa, itorque yokuqala iphinde yehliswe ibe ingxenye eyodwa kwezintathu yalokho ebiyikho ngenkathi iqala ngokuqondile ukusebenzisa indlela yokuxhuma unxantathu.

Ifanele izimo lapho kungekho mthwalo noma umthwalo omncane oqalayo.Futhi uma kuqhathaniswa nanoma iyiphi enye i-vacuum starter, isakhiwo sayo silula kakhulu futhi intengo nayo ishibhe kakhulu.

Ngaphezu kwalokho, indlela yokuqala ye-delta yenkanyezi nayo inenzuzo, okungukuthi lapho umthwalo ulula, ingavumela injini ukuthi isebenze ngaphansi kwendlela yokuxhuma inkanyezi.Kuleli qophelo, i-torque elinganisiwe kanye nomthwalo kungafaniswa, okungathuthukisa ukusebenza kahle kwemoto futhi konge ukusetshenziswa kukagesi.

5.Ukuqala kwesiguquli se-Frequency (isiqalo esithambile)

 I-Frequency converter iyithuluzi elithuthuke kakhulu kwezobuchwepheshe, elisebenza ngokugcwele, nelisebenza ngempumelelo emkhakheni wokulawulwa kwezimoto zesimanje.Ilungisa isivinini kanye ne-torque yemoto ngokushintsha imvamisa yegridi yamandla.Ngenxa yokuzibandakanya kobuchwepheshe be-electronics kanye nobuchwepheshe be-microcomputer, izindleko ziphezulu futhi izidingo zochwepheshe bokulungisa ziphezulu.Ngakho-ke, isetshenziswa kakhulu emikhakheni edinga ukulawulwa kwesivinini kanye nezidingo zokulawula isivinini esikhulu.