Eminye Imihlangano Yamandla
Eminye Imihlangano Yamandla
Imishini yokulawula amandla eklanywe futhi yakhiwe ngezinto zikagesi ezinamandla ezinobuhle bokukhetha okulula, ukwethembeka okuphezulu, izindleko eziphelele eziphansi, ukufakwa kalula, ukubukeka okuhle, isivinini sokuthuthuka, njll.
Ama-assemblies wamandla enziwe nge-thyristor ne-diode atholakalayo ukuze ahlinzekwe:
• Uchungechunge lwebhuloho lokulungisa isigaba esisodwa: olufaka ukulawula okugcwele kwesigaba esisodwa, ukulawula uhhafu, kanye nebhuloho lokulungisa
• Uchungechunge lwebhuloho eligcwele lwezigaba ezintathu: okuhlanganisa ukulungiswa kokulawula okugcwele kwezigaba ezintathu, ukulungiswa kokulawula uhhafu wezigaba ezintathu, kanye nebhuloho lokulungisa lezigaba ezintathu
• Uchungechunge lwebhuloho lokulungisa lezigaba eziyisithupha: kufaka phakathi amabhuloho alungisekayo anezigaba eziyisithupha nangalawuleki
• Uchungechunge lokushintsha kwe-AC: kufaka phakathi amaswishi e-AC esigaba esisodwa kanye nezigaba ezintathu
Ukuze uthole eminye imibuzo yokuhlanganisa amandla enziwe nge-thyristor, i-diode ne-rectifier yokulungiswa, ukuguqulwa, ukushintshwa kwamandla nokulawula, sicela usithinte, ithimba lokusekela amakhasimende elinethalente nochwepheshe abanolwazi liyasebenza.
• Izindlela zokupholisa zemihlangano ukupholisa umoya, ukupholisa ngokwemvelo, nokupholisa amanzi ngephrofayili ye-aluminium kanye nepayipi lokushisa.
• Izingxenye zemihlangano iyunithi yamandla, i-RC absorption capacitor, ukuvikelwa kwezinga lokushisa, izingxenye ezijwayelekile noma ezikhethekile zokulawula.
Isingeniso Sezobuchwepheshe
- Iyunithi yamandla e-anti-parallel yezigaba ezintathu yakhiwe ama-SCR amabili axhunywe kumodi ephikisana nokuhambisana esigabeni ngasinye ukuze kuqashwe ukulawulwa kwamandla kagesi alawulwa yisigaba se-AC.I-thyristor ngayinye isebenzela umjikelezo wesigamu esivumelanayo nesibi.Ngakho ukungaguquguquki kwemingcele ye-SCR emibili exhunywe ngokumelene ne-parallel kubaluleke kakhulu kanye nezici zesango nokubamba imingcele yamanje, njll. Ukuvumelana kwe-thyristors abaqashiwe kuzohlinzeka ngamagagasi esigamu alungile noma angalungile abe yi-symmetrical, ngaphandle kwalokho yamanje ne-DC. ingxenye izogeleza ngenjini ye-inductive, i-motor stator izoshiswa kakhulu, bese kuthi ama-motor windings ashiswe futhi injini izolimala ekugcineni.
- I-Runau ingahlinzeka ngesigaba esiphezulu sokungaguquguquki kwe-thyristor elawulwa yi-thyristor kanye neyunithi yamandla e-anti-parallel yesigaba esi-3 ehlobene ku-voltage ephakathi engu-1200V/3300V kodwa futhi namandla kagesi aphezulu angu-4500V/6500V.
- Ukuze ubone isiqalo esithambile futhi uvikele izinjini zamandla kagesi aphezulu angu-6kV no-10kV, kuyadingeka ukuxhuma ama-SCR ngokuphikisana nokuhambisana bese uwaxhuma ngochungechunge ukuze ufeze imfuneko yokusebenza kwamandla kagesi aphezulu.Isigaba ngasinye se-6kV sidinga ama-thyristors angu-6 (ama-2 ku-anti-parallel namaqembu angu-3 ochungechungeni), futhi isigaba ngasinye se-10kV sidinga ama-thyristors angu-10 (ama-2 ku-anti-parallel, amaqembu angu-5 ochungechungeni).Ngale ndlela, i-voltage ebekezelelekayo ye-thyristor ngayinye icishe ibe ngu-2000V, ngakho-ke ama-voltage akalwe phambili futhi ahlehlayo angaphindaphindi i-VDSM kanye ne-VRSM ye-thyristor ekhethiwe kufanele ibe ngu-6500V noma ngaphezulu.Ukuze ukhethe i-current elinganisiwe ye-thyristor, ukulinganisa okusebenzayo okwamanje kwe-motor kufanele kucatshangelwe.Ngokuvamile, i-current ekhethiwe ye-thyristor kufanele ibe izikhathi ezi-3 kuya kwezi-4 zamanje ezilinganisiwe zemoto.