I i-low-voltage variable frequency motorikhiqizwa nguI-LT SIMO Motorbabe nezici ezilandelayo
- Idizayini ye-Electromagnetic: Kumamotor ajwayelekile asynchronous, imingcele yokusebenza eyinhloko ecatshangelwa ngesikhathi sokuklama kabusha umthamo wokugcwala, ukuqala ukusebenza, ukusebenza kahle kanye nesici samandla. Kuma-motor frequency aguquguqukayo, njengoba isiliphu esibucayi sihambisana ngokuphambene nemvamisa yamandla, singaqalwa ngokuqondile lapho isiliphu esibucayi siseduze no-1. Ngakho-ke, umthamo wokulayisha ngokweqile kanye nokusebenza kokuqala akudingeki kucatshangelwe kakhulu, futhi indaba eyinhloko okufanele ixazululwe yindlela yokuthuthukisa ukuguquguquka kwemoto kumandla angenawo-sinusoidal. Izindlela ngokuvamile zimi kanje:
I-1) Yehlisa ukumelana kwe-stator ne-rotor ngangokunokwenzeka.
Ukunciphisa ukumelana kwe-stator kunganciphisa ukulahlekelwa kwethusi okuyisisekelo ukunxephezela ukwanda kokulahlekelwa kwethusi okubangelwa ama-harmonics aphezulu.
I-2) Ukuze ucindezele ama-harmonics we-oda eliphezulu okwamanje, i-inductance ye-motor idinga ukukhuliswa ngokufanele. Kodwa-ke, ukusabela kokuvuza kwe-rotor slot enkulu, umphumela wesikhumba uba mkhulu, kanye nokulahleka kwethusi okuphezulu kwe-harmonic. Ngakho-ke, usayizi wokusabela kokuvuza kwemoto kufanele ucabangele ukufaneleka kokumataniswa kwe-impedance phakathi kwalo lonke uhla lokulawula isivinini.
3) Isekethe kazibuthe eyinhloko ye-variable frequency motor ngokuvamile yakhelwe ukuthi ingabi ne-unsaturated. Okokuqala, kucatshangelwa ukuthi ama-harmonics aphezulu azojulisa ukugcwala kwesifunda kazibuthe. Okwesibili, kubhekwa ukuthi emazingeni aphansi, i-voltage ephumayo ye-inverter kufanele ikhuliswe ngokufanele ukuze kwandiswe i-torque yokuphuma.
- Ukuklama kwesakhiwo
Lapho uklama isakhiwo, ukucatshangelwa okuyinhloko umthelela wezimpawu zokuphakelwa kwamandla okungewona we-sinusoidal esakhiweni sokufakelwa, ukudlidliza, indlela yokupholisa umsindo nezinye izici zemoto eguquguqukayo. Ngokuvamile, lezi zindaba ezilandelayo kufanele zinakwe:
1) Izinga le-insulation, ngokuvamile izinga lika-F noma ngaphezulu, liqinisa ukufakwa phansi kanye namandla okufakwa kwezintambo zokuphenduka kwentambo, futhi ikakhulukazi cabangela ikhono le-insulation ukuze limelane ne-voltage yomfutho.
2) Okwe-ukudlidliza kanye nomsindo izinkinga motor, ukuqina kwezingxenye zemoto kanye nakho konke kufanele kucatshangelwe ngokugcwele, futhi imvamisa yayo yemvelo kufanele yandiswe ngangokunokwenzeka ukuze kugwenywe i-resonance nge-wave ngayinye yamandla.
3) Indlela yokupholisa: Ngokuvamile, ukupholisa umoya ngempoqo kwamukelwa, okungukuthi, ifeni eyinhloko yokupholisa imoto ishayelwa injini ezimele.
I-4) Izinyathelo zokuvimbela i-shaft yamanje, izindlela zokufaka ukufakwa kufanele zamukelwe kumamotor anomthamo ongaphezu kuka-160KW. Ikakhulukazi, kulula ukukhiqiza magnetic circuit asymmetry kanye shaft current. Lapho i-current ekhiqizwa ezinye izingxenye ze-high-frequency ihlanganiswa, i-shaft current izokwanda kakhulu, okuholela ekulimaleni okuthwalayo, ngakho-ke izinyathelo zokufakelwa zivame ukuthathwa.
5) Ngobanjalo amandla okuguquguquka kwemvamisa motors, lapho isivinini sidlula i-3000/min, amafutha akhethekile amelana nezinga lokushisa eliphezulu kufanele asetshenziselwe ukunxephezela ukunyuka kwezinga lokushisa kwebheringi.
Amamotho efrikhwensi aguquguqukayo angasebenza isikhathi eside ebangeni lefrikhwensi eguquguqukayo engu-0.1HZ--130HZ.
Amamotho ajwayelekile angasebenza isikhathi eside ebangeni: 20--65hz ngezigxobo ezi-2.
25--75hz ngezigxobo ezi-4.
30--85hz ngezigxobo ezingu-6.
35--100hz ngezigxobo ezingu-8.