Lapho injini iguqula amandla kagesi abe amandla emishini, iphinde ilahlekelwe ingxenye yamandla ngokwawo.Ngokuvamile, ukulahlekelwa kwemoto kungahlukaniswa izingxenye ezintathu: ukulahlekelwa okuguquguqukayo, ukulahlekelwa okugxilile kanye nokulahlekelwa okulahlekile.

1. Ukulahlekelwa okuguquguqukayo kuyahlukahluka ngomthwalo, kuhlanganise nokulahlekelwa kwe-stator ukumelana (ukulahlekelwa kwethusi), ukulahlekelwa ukumelana ne-rotor nokulahlekelwa ukumelana nebhulashi.

2. Ukulahlekelwa okungaguquki kuzimele emthwalweni, okuhlanganisa ukulahlekelwa okuyinhloko kanye nokulahlekelwa kwemishini.Ukulahlekelwa kwensimbi kuhlanganisa ukulahlekelwa kwe-hysteresis kanye nokulahlekelwa kwamanje kwe-eddy, okulinganayo nesikwele se-voltage, futhi ukulahlekelwa kwe-hysteresis nakho kuhambisana ngokuphambene nemvamisa.

3. Okunye ukulahlekelwa okulahlekile ukulahlekelwa yimishini nokunye ukulahlekelwa, okuhlanganisa ukulahlekelwa ukungqubuzana kwamabheringi kanye nokulahlekelwa ukumelana nomoya okubangelwa ukuzungezisa kwamafeni namarotha.

I-Motor Loss Classification

Izinyathelo Eziningana Zokunciphisa Ukulahleka Kwezimoto

1 Ukulahlekelwa kwe-Stator

Izindlela eziyinhloko zokunciphisa i-I^2R ukulahlekelwa kwe-motor stator yilezi:

1. Khulisa indawo ephambanayo ye-stator slot.Ngaphansi kobubanzi obufanayo be-stator, ukukhulisa indawo ephambanayo ye-stator slot kuzonciphisa indawo yesekethe kazibuthe futhi kwandise ukuminyana kazibuthe kwamazinyo.

2. Khulisa isilinganiso esigcwele se-slot se-stator slots, okungcono kumamotho amancane ane-voltage encane.Ukusebenzisa usayizi ongcono kakhulu wokusonta kanye nokufakwa kwe-insulation kanye nendawo enkulu yezintambo eziphambanayo kungakhuphula isilinganiso esigcwele sesikhala se-stator.

3. Zama ukufinyeza ubude besiphetho esisongayo se-stator.Ukulahlekelwa kwesiphetho esisonga i-stator kubala u-1/4 kuya ku-1/2 wesamba sokulahlekelwa okusongayo.Ukunciphisa ubude bokuphela kokujika kungathuthukisa ukusebenza kahle kwenjini.Ukuhlola kubonisa ukuthi ubude bokuphela buncishiswa ngo-20% futhi ukulahlekelwa kuncipha ngo-10%.

2 Ukulahlekelwa kwe-Rotor

I-I^ 2R ukulahlekelwa kwe-motor rotor ikakhulukazi ihlobene ne-rotor yamanje kanye nokumelana ne-rotor.Izindlela ezihambisanayo zokonga amandla zimi kanje:

1. Nciphisa i-rotor current, engacatshangelwa mayelana nokwandisa i-voltage kanye nesici samandla we-motor.

2. Khulisa indawo ye-cross-sectional slot ye-rotor.

3. Yehlisa ukumelana nokuvunguza kwe-rotor, njengokusebenzisa izintambo eziwugqinsi nezinto zokwakha ezinokumelana okuphansi, okubaluleke kakhulu kumamotho amancane, ngoba amamotho amancane ngokuvamile afaka ama-aluminium rotor, uma kusetshenziswa ama-rotor ethusi, ukulahleka okuphelele injini ingancishiswa ngo-10% ～15%, kodwa i-rotor yethusi yanamuhla idinga izinga lokushisa eliphezulu lokukhiqiza futhi ubuchwepheshe abukathandwa, futhi izindleko zayo ziphakeme ngo-15% kuya ku-20% kune-cast aluminium rotor.

3 Ukulahlekelwa okuyinhloko

Ukulahlekelwa kwensimbi ye-motor kungancishiswa ngezinyathelo ezilandelayo:

1. Yehlisa ukuminyana kazibuthe futhi wandise ubude bensimbi ukuze unciphise ukuminyana kazibuthe, kodwa inani le-iron elisetshenziswa enjini liyakhula ngokufanele.

2. Yehlisa ubukhulu beshidi lensimbi ukuze unciphise ukulahlekelwa kwamandla amanje.Isibonelo, ukufaka ishidi lensimbi ye-silicon egoqiwe eshisayo ngeshidi lensimbi ye-silicon egoqiwe kunganciphisa ukujiya kweshidi lensimbi ye-silicon, kodwa ishidi lensimbi elincanyana lizokhuphula inani lamashidi ensimbi kanye nezindleko zokukhiqiza injini.

3. Sebenzisa ishidi lensimbi ye-silicon egoqelwe ngokubanda elikwazi ukungena kahle kazibuthe ukuze unciphise ukulahleka kwe-hysteresis.

4. Yamukela ukusebenza okuphezulu kwe-iron chip insulation coating.

5. Ukwelashwa kokushisa nobuchwepheshe bokukhiqiza, ukucindezeleka okusele ngemva kokucubungula i-iron core kuzothinta kakhulu ukulahlekelwa kwemoto.Lapho ucubungula ishidi lensimbi ye-silicon, isiqondiso sokusika kanye nokucindezeleka kokugunda kwe-shear kunomthelela omkhulu ekulahlekelweni okuyisisekelo.Ukusika eceleni kokuqondisa kweshidi lensimbi ye-silicon kanye nokwelashwa kokushisa kweshidi le-silicon steel punching kunganciphisa ukulahlekelwa ngo-10% kuya ku-20%.

4 Ukulahlekelwa okulahlekile

Namuhla, ukuqonda kokulahleka kwezimoto kusesesigabeni socwaningo.Ezinye zezindlela eziyinhloko zokunciphisa ukulahleka okunhlanhlatha namuhla yilezi:

1. Sebenzisa ukwelashwa kokushisa nokuqeda ukuze unciphise i-short-circuit endaweni ye-rotor.

2. Ukwelashwa kwe-insulation ebusweni obungaphakathi be-rotor slot.

3. Nciphisa ama-harmonics ngokuthuthukisa i-stator winding design.

4. Thuthukisa idizayini ye-rotor slot coordination futhi unciphise ama-harmonics, ukhuphule i-stator ne-rotor cogging, dweba umumo we-rotor slot njengezikhala ezithambekele, futhi usebenzise ama-winding we-sinusoidal axhumeke ngochungechunge, ama-winding ahlakazekile kanye nama-winding amabanga amafushane ukuze unciphise kakhulu ukuhleleka okuphezulu. ;Ukusebenzisa udaka lwezibuthe noma i-slot wedge kazibuthe ukuze kuthathelwe indawo wedge ye-slot yendabuko kanye nokugcwalisa i-slot ye-motor stator iron core ngodaka lukazibuthe lwe-slot kuyindlela ephumelelayo yokunciphisa ukulahlekelwa okwengeziwe okulahlekile.

5 ukulahlekelwa ukungqubuzana komoya

Ukulahleka kokushayisana komoya kubala cishe amaphesenti angama-25 okulahleka okuphelele kwemoto, okufanele kuqashelwe ngokufanele.Ukulahleka kwefriction kubangelwa ikakhulukazi ama-bearings nama-seal, angancishiswa ngalezi zinyathelo ezilandelayo:

1. Nciphisa usayizi we-shaft, kodwa uhlangabezane nezidingo ze-torque ephumayo kanye ne-rotor dynamics.

2. Sebenzisa ama-bearings asebenza kahle kakhulu.

3. Sebenzisa uhlelo lokuthambisa olusebenzayo kanye nezinto zokugcoba.

4. Yamukela ubuchwepheshe bokuvala uphawu obusezingeni eliphezulu.

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Isikhathi sokuthumela: Jun-22-2022