Ezinye iiNdibano zaMandla
Ezinye iiNdibano zaMandla
Izixhobo zokulawula amandla ziyilwe kwaye zenziwe ngamacandelo ombane we-elektroniki kunye neengenelo zokukhetha okulula, ukuthembeka okuphezulu, ixabiso eliphantsi elipheleleyo, ukufakwa okulula, ukubonakala okuhle, isantya sophuhliso olukhawulezayo, njl njl.
Iindibano zamandla ezenziwe nge-thyristor kunye ne-diode ezikhoyo ukuba zibonelelwe:
• Inqanaba elinye lebhulorho yokulungisa uthotho: kuquka ulawulo olupheleleyo lwesigaba esinye, ulawulo lwesiqingatha, kunye nebhulorho yokulungisa
• Isigaba esithathu-ibhulorho epheleleyo uthotho: kuquka izigaba ezithathu ulawulo olupheleleyo ukulungiswa, isigaba sesithathu sokulungiswa kolawulo lwesiqingatha, kunye nesigaba esithathu ibhulorho yokulungiswa.
• Isigaba esithandathu seebhulorho zokulungisa: kuqukwa izigaba ezithandathu ezilawulekayo nezingalawulekiyo iibhulorho zokulungisa.
• Uluhlu lokutshintsha kwe-AC: kubandakanya isigaba esisodwa kunye nesigaba sesithathu sokutshintsha kwe-AC
Ngemibuzo engaphezulu yeendibano zamandla ezenziwe nge-thyristor, i-diode kunye ne-rectifier yokulungiswa, ukuguqula, ukutshintshela amandla kunye nokulawula, nceda uqhagamshelane nathi, iqela lenkxaso yabathengi abanetalente kunye namagcisa anamava aphantsi kokukhonza.
• Iindlela zokupholisa zeendibano kukupholisa umoya, ukupholisa kwendalo, kunye nokupholisa amanzi ngeprofayili ye-aluminiyam kunye nombhobho wobushushu.
• Iinxalenye zeeassemblies ziyunithi yamandla, i-RC absorption capacitor, ukhuseleko lobushushu, amacandelo omsebenzi jikelele okanye okhethekileyo.
Intshayelelo yobuGcisa
- Iyunithi yamandla enxamnye nenqanaba lesithathu iqulunqwe zii-SCR ezimbini eziqhagamshelwe kwimowudi echasene ne-parallel kwisigaba ngasinye ukuqonda ukulawulwa kwamandla ombane wesigaba se-AC.Umsebenzi ngamnye we-thyristor uhambelana nomjikelo wesiqingatha esilungileyo kunye nesibi.Ngoko ke ukuhambelana iparameters ezimbini anti-parallel eqhagamshelwe SCR kubaluleke kakhulu kwakunye iimpawu isango kunye nokubamba parameters yangoku, etc. Ukuhambelana thyristors abaqeshwe iya kubonelela amaza isiqingatha positive kunye nembi ukuba symmetrical, kungenjalo langoku kunye DC. icandelo liya kuhamba nge-inductive feature motor, i-motor stator iya kutshiswa kakhulu, emva koko i-motor windings iya kutshiswa kwaye i-motor iya konakala ekugqibeleni.
- I-Runau inokubonelela ngenqanaba eliphezulu lokuhambelana kwe-thyristor kunye nesigaba esi-3 esichasene neyunithi yamandla ehambelanayo kumbane ophakathi kwe-1200V / 3300V kodwa kunye nombane ophezulu we-4500V / 6500V.
- Ukuqaphela ukuqala okuthambileyo kunye nokukhusela i-6kV kunye ne-10kV iimotor zamandla aphezulu, kuyimfuneko ukudibanisa i-SCRs kwi-anti-parallel kwaye emva koko udibanise kuthotho ukuzalisekisa imfuneko yokusebenza kwamandla ombane aphezulu.Isigaba ngasinye se-6kV sifuna i-6 thyristors (2 kwi-anti-parallel kunye namaqela ama-3 kuthotho), kwaye isigaba ngasinye se-10kV sifuna i-10 thyristors (2 kwi-anti-parallel, amaqela ama-5 kuthotho).Ngale ndlela, i-voltage enyamezelwayo ye-thyristor nganye imalunga ne-2000V, ngoko i-voltage yangaphambili kunye ne-reverse non-repetitive rated VDSM kunye ne-VRSM ye-thyristor ekhethiweyo kufuneka ibe yi-6500V okanye ngaphezulu.Ukukhetha i-current rated of thyristor, ukulinganisa ukusebenza kwangoku kwemoto kufuneka kuthathelwe ingqalelo.Ngokuqhelekileyo, i-current ekhethiweyo ye-thyristor kufuneka ibe ngamaxesha ama-3 ukuya kwe-4 ye-motor rated current.