Sitasiyo ya HVDC

Substation, ahantu voltage ihinduka.Kugirango wohereze ingufu z'amashanyarazi zitangwa ninganda zamashanyarazi ahantu kure, voltage igomba

kwiyongera no guhinduka mumashanyarazi menshi, hanyuma voltage igomba kugabanuka nkuko bisabwa hafi yumukoresha.Aka kazi ka voltage kuzamuka no kugwa ni

Byarangiye na Substation.Ibikoresho nyamukuru byo gusimbuza ni guhinduranya no guhindura ibintu.

Ukurikije igipimo, utuntu duto twitwa insimburangingo.Gusimbuza ni binini kuruta gusimburwa.

Substation: muri rusange intambwe-hasi yo gusimbuza hamwe na voltage urwego ruri munsi ya 110KV;Substation: harimo "intambwe-yo-na-hasi" insimburangingo ya

urwego rutandukanye rwa voltage.

Substation nikigo cyamashanyarazi muri sisitemu yingufu zihindura voltage, yakira kandi ikwirakwiza ingufu zamashanyarazi, igenzura icyerekezo cyingufu

gutemba no guhindura voltage.Ihuza amashanyarazi kumurongo wose wa voltage binyuze muri transformateur yayo.

Gusimbuza ni uburyo bwo guhindura urwego rwa AC voltage (voltage nini - voltage nkeya; voltage nto - voltage nini);Sitasiyo ihindura ni

guhinduka hagati ya AC na DC (AC kuri DC; DC kuri AC).

Sitasiyo ikosora hamwe na inverter ya sitasiyo ya HVDC yitwa sitasiyo ihindura;Sitasiyo ikosora ihindura ingufu za AC imbaraga za DC

ibisohoka, na inverter station ihindura ingufu za DC gusubira muri AC power.Sitasiyo-yinyuma ihindura sitasiyo nuguhuza ikosora ikosora na inverter

sitasiyo ya HVDC yohereza muri sitasiyo imwe ihindura, hanyuma urangize inzira yo guhindura AC kuri DC hanyuma DC kuri AC ahantu hamwe.

Ibyiza bya sitasiyo ihindura

1. Iyo wohereje imbaraga zimwe, ikiguzi cyumurongo ni gito: Imiyoboro yohereza hejuru ya AC isanzwe ikoresha imiyoboro 3, mugihe DC ikeneye 1 (pole imwe) cyangwa 2

(pole ebyiri).Kubwibyo, kwanduza DC birashobora kuzigama ibikoresho byinshi byohereza, ariko kandi bikagabanya amafaranga menshi yo gutwara no kwishyiriraho.

2. Gutakaza ingufu nke zumurongo: kuberako imiyoboro imwe cyangwa ibiri yonyine ikoreshwa mumurongo wo hejuru wa DC, gutakaza ingufu ni nto kandi bifite "ikibanza cyumwanya"

Ingaruka.Gutakaza corona no kwivanga kuri radio ni bito kurenza ibyo kumurongo wo hejuru wa AC.

3. Bikwiranye no kohereza amazi mumazi: mubihe bimwe byibyuma bidafite fer hamwe nibikoresho bikingira, imbaraga zemerewe gukora munsi ya DC ni

inshuro zigera kuri 3 kurenza iyo munsi ya AC.Imbaraga zoherejwe numurongo wa kabili DC hamwe na cores 2 nini cyane kuruta iyoherejwe numurongo wa AC hamwe na 3

ingirakamaro.Mugihe cyo gukora, nta gutakaza magnetique.Iyo ikoreshejwe kuri DC, mubyukuri ni igihombo cyo kurwanya insinga yibanze, hamwe no gusaza kwa insulation

nayo itinda cyane, kandi ubuzima bwa serivisi burahuye.

4. Sisitemu itajegajega: Muri sisitemu yo kohereza AC, generator zose zihuza zahujwe na sisitemu yingufu zigomba gukomeza imikorere ikora.Niba umurongo wa DC

ikoreshwa muguhuza sisitemu ebyiri za AC, kubera ko umurongo wa DC udafite reaction, ikibazo gihamye cyo hejuru ntikibaho, ni ukuvuga kohereza DC ntabwo bigarukira kuri

intera yoherejwe.

5. Irashobora kugabanya imiyoboro ngufi ya sisitemu: mugihe uhuza sisitemu ebyiri za AC numurongo wohereza AC, umuyoboro mugufi uziyongera bitewe nu

kongera ubushobozi bwa sisitemu, ishobora kurenza ubushobozi bwihuse-bwo kumena amashanyarazi yumwimerere, bisaba gusimbuza umubare munini wibikoresho kandi

kongera umubare munini w'ishoramari.Ibibazo byavuzwe haruguru ntabwo bibaho mugukwirakwiza DC.

6. Kwihuta kwihuta nigikorwa cyizewe: Ihererekanyabubasha rya DC rirashobora guhindura byoroshye kandi byihuse imbaraga zikora kandi zikamenya ko imbaraga zigenda zihinduka binyuze muri thyristor.

Niba umurongo wa bipolar wemejwe, mugihe inkingi imwe yananiwe, indi nkingi irashobora gukoresha isi cyangwa amazi nkumuzunguruko kugirango ukomeze kohereza kimwe cya kabiri cyingufu, nazo zitezimbere

ubwizerwe bwimikorere.

Sitasiyo-Kuri-Guhindura Sitasiyo

Sitasiyo-yinyuma-ihinduranya sitasiyo ifite ibyingenzi byingenzi biranga HVDC isanzwe, kandi irashobora kubona imiyoboro idahwitse.Ugereranije na

ibisanzwe DC yohereza, ibyiza byo gusubira inyuma kuri sitasiyo ihinduka cyane:

1. Nta murongo wa DC kandi igihombo cya DC ni gito;

2. Umuvuduko muke hamwe nuburyo bugezweho bwo gukora birashobora gutoranywa kuruhande rwa DC kugirango ugabanye urwego rwimikorere ya transformateur ihindura, valve ihindura nibindi bifitanye isano

ibikoresho no kugabanya ikiguzi;

3. Guhuza uruhande rwa DC birashobora kugenzurwa rwose muri salle ya valve bitabangamiye ibikoresho byitumanaho;

4. Sitasiyo ihindura ntabwo ikenera electrode yubutaka, DC iyungurura, DC ifata, DC ihindura, DC itwara nibindi bikoresho bya DC, bityo bizigama ishoramari.

ugereranije nubusanzwe amashanyarazi menshi ya DC.