Zero-kuyambuka kudzora inzira yakajairika yekudzora iyosimba regulator, kunyanya kana mutoro uri rudzi rwekudzivirira.
Iyo thyristor inovhurwa kana kuvharwa kana iyo voltage iri zero, uye simba rinogona kugadziridzwa nekugadzirisa chiyero cheiyo thyristor panguva nekudzima.Zero kuyambuka kudzora modhi isu tinogona kupatsanurwa kuita yakatarwa nguva zero kuyambuka kutonga uye kusiyanisa nguva zero kuyambuka kutonga nzira mbiri.
Yakagadziriswa nguva zero kuyambuka kudzora modhi (PWM zero kuyambuka): Iyo yakatarwa-nguva zero-kuyambuka yekudzora maitiro ndeye kudzora avhareji simba remutoro nekugadzirisa on-off duty kutenderera munguva yakatarwa.Nekuti inobatidzwa nekudzimwa pa zero point yemagetsi, muchikamu che full wave, hapana hafu yewave chikamu, haizobudise kupindira kwepamusoro-frequency, uye simba rinogona kusvikwa, saka rine simba rakawanda. -kuchengetedza.
Inoshanduka nguva zero kuyambuka kudzora (CYCLE zero kuyambuka): Iyo inoshanduka nguva zero kuyambuka yekudzora modhi zvakare iri-kudzima kutonga pa zero kuyambuka kwemagetsi.Kuenzaniswa nePWM mode, hapana nguva yakatarwa yekutonga, asi nguva yekutonga inopfupiswa zvakanyanya sezvinobvira, uye iyo frequency inoparadzaniswa zvakaenzana maererano neinobuda muzana mukati menguva yekutonga.Zvakare mune yakazara wave seyuniti, hapana hafu wave chikamu, inogona kusvika kune simba chinhu, asi zvakare chengetedza magetsi.
Kubva pamufananidzo uri pasi apa, tinogona kuona zvakajeka kuti pasi pe zero-crossing control mode, kuitira kugadzirisa simba rinobudamagetsi regulators, tinogona kuzadzisa chinangwa chekutonga simba nekugadzirisa nhamba yezvikamu zveSCR nekuvhara, izvo zviri nyore kwazvo.Nekudaro, isu tichaona zvakare kuti iyo frequency control inokodzera chete zviitiko apo kurongeka kwekutonga hakuna kukwirira, kana zvinodiwa zvekutonga zvakakwirira, saka iyo frequency control nzira haina kukodzera.
Nguva yekutumira: Zvita-22-2023