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 kuhlanganiswe nokulahlekelwa 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 esisongayo se-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 Rotor ukulahlekelwa

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 ezinokumelana okuphansi, okubaluleke kakhulu kumamotho amancane, ngoba ama-motor amancane ngokuvamile afaka ama-aluminium rotor, uma kusetshenziswa ama-rotor ethusi, ukulahlekelwa 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 ukhuphule ubude bensimbi ukuze unciphise ukuminyana kazibuthe, kodwa inani lensimbi elisetshenziswa enjini liyakhula ngokufanele.

2. Yehlisa ukujiya kweshidi lensimbi ukuze unciphise ukulahlekelwa kwamandla amanje. Isibonelo, ukufaka ishidi lensimbi ye-silicon egoqiwe eshisayo 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 nengcindezi yokugunda i-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 ukulahlekelwa okunhlanhlathayo 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, wandise 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 i-magnetic slot udaka noma i-slot wedge kazibuthe esikhundleni se-slot wedge yendabuko kanye nokugcwalisa i-slot ye-motor stator iron core ngodaka lukazibuthe we-slot kuyindlela ephumelelayo yokunciphisa ukulahlekelwa okunye 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