Irotor yenxebaimotoine-resistor eqhagamshelwe kuthotho kwi-rotor, ukuze i-motor ibe ne-torque yokuqala enkulu ngokwaneleyo kunye nomsinga wokuqalisa omncinci kakhulu (ubuninzi bomsinga wokuqalisa bulingana nobuninzi bomsinga wokuqalisa), kwaye inokufezekisa umsebenzi wokulawula isantya esincinci.
Iimoto ze-frequency eziguquguqukayo zinokufezekisa imisebenzi yokulawula isantya esithambileyo kunye nokuqala ngokutshintsha i-frequency. Ngokwethiyori, uluhlu lwesantya ukusuka ku-0 ukuya kwi-infinity lunokulungiswa kakuhle, kodwa eneneni, isantya esiphantsi sinxulumene neempawu ze-frequency eziphantsi zemoto, kwaye isantya esiphezulu sinqunyelwe yisantya sokusebenza somda wokuthwala; Indawo yokusebenza ekhuselekileyo isuka ku-0 ukuya kwisantya esilinganiselweyo, esinokusebenza ngaphantsi okanye silingane ne-torque elinganiselweyo, kwaye ukusuka kwisantya esilinganiselweyo ukuya kwisantya esiphezulu, esinokusebenza ngaphantsi okanye silingane namandla alinganiselweyo. Ke ngoko, imoto ye-frequency eguquguqukayo ine-torque eqhubekayo ukusuka ku-0 ukuya kwisantya esilinganiselweyo kwaye iphezulu kunesantya esilinganiselweyo. Iimpawu zokulawula isantya samandla esiqhubekayo.
Ukusuka kuhlalutyo lwesakhiwo semoto, imoto yekheji inesakhiwo esilula, kulula ukuyenza, kwaye inamandla kakhulu ngokwendlela yoomatshini. Iyenza isebenze ngokuthambileyo ukuqala kunye nokulawula isantya nge-frequency converter, kwaye isantya sayo esiphezulu sikhulu kakhulu kuneso se-rotor ene-asynchronous winding rotor enezigaba ezintathu. Isakhiwo semoto kunye ne-commutator Imoto ye-DC sisakhiwo semoto esiqhuba isantya esiguquguqukayo esingabizi kakhulu nesithembekileyo.
Ngokwethiyori, i-wound rotor motor inokusebenza kwi-variable frequency, kodwa i-wound rotor ilahlekelwa ziimpawu ezintle zokuqalisa nokulawula isantya ngaphandle. Ukusebenza kokuqalisa okuthambileyo kwendlela ye-variable frequency kuphantsi kakhulu kunokwe-squirrel cage motor (ukumelana kwe-wound rotor kuncinci, kwaye i-start torque incinci), kunye ne-rotor winds Kukho iingozi ezifihlakeleyo zeziphene zombane ezifana ne-turn-to-ground kunye ne-phase-to-phase short circuits kunye ne-high-speed shedding. Ingxaki yokuthembeka iphantsi kakhulu kune-solid squirrel cage rotor. Ke ngoko, ukongeza kwi-doubly-fed speed-regulated asynchronous generators okanye ii-internally-fed speed-regulated asynchronous motors, ii-winding Line rotor motors ngokubanzi azisebenzisi umbane we-variable frequency.
Ixesha lokuthumela: Disemba-05-2024