Umphakeli weyunithi yempendulo ukukhumbuza ukuthi umsebenzi wokuvikela imoto uwukuqinisekisa ukusebenza okujwayelekile kwesikhathi eside kwemoto, ukugwema ukulimala kwezinto ezisebenza ngogesi, igridi yamandla, kanye nezisetshenziswa zemishini ngenxa yamaphutha ahlukahlukene, nokuqinisekisa ukuphepha komuntu siqu. Inqubo yokuvikela iyingxenye ebalulekile yazo zonke izinhlelo zokulawula ezizenzakalelayo. Lokhu kumayelana nokuvikelwa kwamasekhethi ane-voltage ephansi. Ngokuvamile, kukhona ukuvikela okuvame ukusetshenziswa okuningana, okuhlanganisa ukuvikela kwesifunda esifushane, ukuvikela okudlulele, ukuvikela amaphutha, nokuvikelwa kwe-undervoltage.
Faka i-reactor ekugcineni kokuphumayo kwesiguquli sefrikhwensi:
Lesi silinganiso sisetshenziswa kakhulu, kodwa kufanele kuqashelwe ukuthi le ndlela inomphumela othile kumakhebula amafushane (ngaphansi kwamamitha angu-30), kodwa ngezinye izikhathi umphumela awulungile.
Faka isihlungi se-dv/dt ekuphumeni kwesiguquli sefrikhwensi:
Lesi silinganiso sisebenza ezimeni lapho ubude bekhebula bungaphansi kwamamitha angu-300, futhi intengo iphakeme kancane kunaleyo yama-reactor, kodwa umphumela uthuthukiswe kakhulu.
Faka isihlungi se-sine wave ekuphumeni kwesiguquli semvamisa:
Lesi silinganiso yisona esikahle kakhulu. Ngoba lapha, i-PWM pulse voltage iguqulwa ibe i-sine wave voltage, exazulula ngokuphelele inkinga ye-peak voltage lapho i-motor isebenza ngaphansi kwezimo ezifanayo ne-voltage yefrikhwensi yamandla (kungakhathaliseki ukuthi ikhebula lide kangakanani, ngeke kube khona i-peak voltage).
Faka i-spike voltage absorber kusixhumi esibonakalayo phakathi kwekhebula nenjini:
Ukungalungi kwezinyathelo zangaphambilini ukuthi lapho amandla emoto ephakeme, umthamo nesisindo se-reactor noma isihlungi sikhulu, futhi intengo iphezulu. Ngaphezu kwalokho, kokubili i-reactor nesihlungi kuzodala ukwehla kwe-voltage ethile, kuthinte i-torque ephumayo yenjini. Ukusetshenziswa kwe-frequency converter peak voltage absorber kunganqoba lobu bubi. I-SVA peak voltage absorber eyakhiwe yi-Institute 706 ye-Second Academy of China Aerospace Science and Industry Corporation isebenzisa ubuchwepheshe obuthuthukisiwe bezinto zikagesi zamandla kanye nobuchwepheshe bokulawula okuhlakaniphile, okuyenza ibe into ekahle yokuxazulula ukulimala kwezimoto. Ngaphezu kwalokho, i-absorber peak ye-SVA nayo ingavikela ama-bearings we-motor.