Imodi yempendulo yamandla inika amandla amandla ukuthi abuyiselwe kugridi ngokuhlehlisa ugesi ovuselelekayo okhiqizwa lapho injini ibhuleki ingena endaweni yamanje eshintshashintshayo ngefrikhwensi efanayo neyegridi, esikhundleni sokusebenzisa amandla ngezinto eziphikisayo. Izinqubo zayo eziyinhloko zihlanganisa:
Ukuguqulwa kwamandla: Esimeni sokuphehla amandla enjini kagesi, i-stator winding ikhiqiza i-reverse induction current, enyusa i-voltage yebhasi ye-DC ngemva kokulungiswa yi-inverter.
Ukulawula okuphambene: Uma i-voltage yebhodi lomama idlula umkhawulo (isb. izikhathi ezingu-1.2 inani elisebenzayo le-voltage yegridi), isiguquli esilawulekayo (isb. I-IGBT) sishintshela esimweni esisebenzayo esihlanekezelwe, sibuyisela emuva i-DC iye ku-AC kugridi yamandla.
Ukulungiswa okuvumelanayo: isifunda sokulawula sithola amandla kagesi wegridi, imvamisa kanye nesigaba ngesikhathi sangempela ukuze kuqinisekiswe ukuthi impendulo yamanje ivumelaniswa negridi futhi igweme ukungcoliswa kwe-harmonic.
Izingxenye Ezibalulekile kanye Nemisebenzi
Amandla Module
Iqukethe i-IGBT, elawula ukugeleza kwamandla ngokusebenzisa i-PWM modulation ukuze kuzuzwe ukulungiswa nokushintshwa kwemodi yokuhlehla.
Idinga ukumelana nokushaqeka kwamandla kagesi aphezulu, okufana nesiguquli sefrikhwensi yesikheshi samandla sisebenzisa amamojula amaquadrant amane ukusekela ukugeleza kwamandla okuqondiswa kabili.
Hlunga Circuit
I-harmonic yezinga eliphezulu ekhiqizwa inqubo yokuhlehla iyahlungwa, ngokuvamile eyakhiwa amasekhethi e-LC, ukuze kuqinisekiswe ukuthi ikhwalithi yempendulo ihlangabezana namazinga wegridi.
Control Circuit
Lungisa ngokunamandla i-engeli yokuqalisa i-inverter ukuze ugcine ukuqina kwamandla kagesi webhodi lomama (njengokunciphisa ngokuzenzakalelayo amandla empendulo lapho i-voltage yegridi ishintshashintsha).
Izimo Zokusebenza Ezijwayelekile
Imishini yokuphakamisa: Lapho ikhipha impahla esindayo, injini ikhiqiza amandla, futhi iyunithi yempendulo yamandla ingabuyisa ngaphezu kuka-80% wamandla avuselelekayo.
Isistimu ye-Elevator: Iziguquli zefrikhwensi yamaquadrant amane zithola ukonga amandla ngokubhuleka impendulo, njengedizayini yokulungisa ye-modular yokuphakanyiswa kwamandla.
I-Rail Traffic: Impendulo enamandla amakhulu uma isitimela sibhuleka, sidinga ukusekelwa kokuhambisana kwegridi.
Ukuqhathaniswa kwe-braking yokusetshenziswa kwamandla kanye ne-feedback braking
Izimpawu Zokusebenzisa Amandla E-Brake Amandla Impendulo
Amandla Okumelana Nokusebenzisa Ukushisa Impendulo Ekusetshenzisweni Kabusha Kwegridi
Ukusebenza kahle okuphansi (ukumosheka kwamandla) Okuphezulu (izinga lokonga amandla lifika ku-30%)
Izindleko eziphansi (kudingeka ukumelana namabhuleki kuphela) Izindleko eziphezulu (kudingeka ukulawulwa kokuhlehla okuyinkimbinkimbi)
Amandla asebenzayo Amandla amancane naphakathi (<100kW) Amandla aphezulu (>100kW)
Izinselele Zezobuchwepheshe Nezixazululo
Ukuhambisana Kwegridi
Kuyadingeka ukuthola ububanzi bokuguquguquka kwamandla kagesi wegridi (isb. ± 20%) ukuze ugweme impendulo yamanje enomthelela kugridi.
Ukucindezelwa kwe-Harmonic
Yehlisa i-THD (ingqikithi yokuhlanekezelwa kwe-harmonic) ibe ngu-<5% ngokusebenzisa ukuhlunga okunezigaba eziningi (okufana nokuhlunga okusebenzayo kwe-LC+).
Impendulo Enamandla
Isifunda sokulawula kufanele siqedele ukushintshwa kwemodi ngaphakathi kwe-10ms ukuvimbela ukugcwala komugqa webhasi.