Mu rwego rwo kugabanya umwanda uhumanya uterwa n’itanura rito hagati, Ubushinwa bwakoresheje ikoranabuhanga rikosora ibintu byinshi, kandi bwateje imbere ibikoresho byinshi byo mu itanura rya interineti nka 6-pulse, 12-pulse, n’itanura rya interineti hagati ya 24, kubera ko ibiciro byanyuma biri hejuru cyane, amasosiyete menshi akora ibyuma aracyashonga ibikoresho byicyuma mumatanura ya interineti hagati ya 6-pulse, kandi ikibazo cy’imyanda ihumanya ibidukikije ntishobora kwirengagizwa.Kugeza ubu, hari ubwoko bubiri bwimikorere yubuyobozi bwo guhuza itanura ryinshyi: imwe ni gahunda yo gucunga ubutabazi, bumwe muburyo bwo kwikuramo ibibazo byubu, kandi ni ingamba zo gukumira gukumira imikoranire hagati. itanura ryinshyi.Nubwo uburyo bwa kabiri bushobora gukemura ikibazo kigenda gikomera cy’imyanda ihumanya y’ibidukikije mu buryo bwinshi, ku ziko ryinjira hagati y’igihe gito rikoreshwa, uburyo bwa mbere ni bwo bwonyine bwakoreshwa mu kwishyura indishyi zavuyemo.Uru rupapuro ruvuga ku ihame rya NIBA itanura ningamba zaryo zo kugenzura, kandi risaba imbaraga zungurura imbaraga (APF) kugirango zishyure kandi zigenzure guhuza mubyiciro bitandukanye bya 6-pulse NIBA itanura.
Ihame ry'amashanyarazi ry'itanura rito hagati.
Itanura rinini hagati ni igikoresho cyihuta kandi gihamye cyo gushyushya ibyuma, kandi ibikoresho byacyo byingenzi ni amashanyarazi aringaniye.Amashanyarazi yatanzwe hagati yumuriro hagati yubusanzwe akoresha uburyo bwo guhindura AC-DC-AC, kandi ibyinjira byinjira mumashanyarazi asimburana asohoka nkumuvuduko wo hagati uhinduranya umuyagankuba, kandi impinduka zumurongo ntizigarukira kumurongo wumurongo wa gride.Igishushanyo mbonera cyumuzingi cyerekanwe mubishusho 1:
Igishushanyo cya 1, umurimo wingenzi wigice cyumuzunguruko wa inverter nuguhindura ibyiciro bitatu byubucuruzi AC yumuriro wogukwirakwiza no gukwirakwiza amashanyarazi mumashanyarazi ya AC, harimo n’umuzunguruko w'amashanyarazi utanga amashanyarazi nogukwirakwiza, gukosora ikiraro umuzunguruko, akayunguruzo k'umuzunguruko hamwe no kugenzura ibizunguruka.Igikorwa nyamukuru cyigice cya inverter nuguhindura amashanyarazi ya AC mucyiciro kimwe cyumuvuduko mwinshi wa AC (50 ~ 10000Hz), harimo amashanyarazi ya inverter, gutangiza amashanyarazi, no gutwara amashanyarazi.Ubwanyuma, icyiciro kimwe giciriritse gihinduranya umuyagankuba muri induction coil mu itanura ritanga umurongo wo hagati uhinduranya imbaraga za magneti, ibyo bikaba bitera umuriro mu itanura kubyara ingufu za electromotive induction, bikabyara amashanyarazi manini ashinzwe, kandi ashyushya umuriro kugirango ushonge.
Isesengura rya Harmonic
Ubwuzuzanye bwinjijwe mumashanyarazi hamwe nigihe gito cyo gutanga amashanyarazi bibaho cyane mugikoresho gikosora.Hano dufata ibyiciro bitatu-bitandatu-byuzuye byuzuye-kugenzura ikiraro gikosora umuzenguruko nkurugero rwo gusesengura ibirimo guhuza.Kwirengagiza ibyiciro byose byo kwimura hamwe na pulsation yubu ya thyristor inverter umuzenguruko wibyiciro bitatu byo gusohora ibicuruzwa, ukeka ko reaction ya AC ari zeru kandi inductance ya AC itagira iherezo, ukoresheje uburyo bwo gusesengura Fourier, igice cyiza kandi cyiza -umurongo wumurongo urashobora kuba Hagati yumuzingi ukoreshwa nka zeru yigihe, kandi formula ikomoka mukubara icyiciro cya voltage yumurongo wa AC.
Muri formula: Id ni impuzandengo yagaciro ya DC kuruhande rwumuzunguruko.
Birashobora kugaragara uhereye kuri formula yavuzwe haruguru ko kumatanura ya 6-pulse intera hagati yumuriro, irashobora kubyara umubare munini wa 5, 7, 1, 13, 17, 17, 19 nibindi bihuza, bishobora kuvugwa muri make nka 6k ± 1 (k ni byiza Byuzuye) guhuza, agaciro keza ka buri guhuza ni kuringaniza bihuye na gahunda ihuza, kandi ikigereranyo nigiciro cyibanze gifatika ni ugusubirana gahunda.
Hagati yumuriro wumuriro wumuriro.
Ukurikije ibice bitandukanye byo kubika ingufu za DC, itanura ryigihe gito rishobora kugabanywa mubwoko bwa interineti hagati yumuriro wa interineti hamwe nubwoko bwa voltage hagati yumuriro.Ingufu zo kubika ingufu zubwoko bwigihe giciriritse ni itanura rinini, mugihe ibikoresho byo kubika ingufu zumuriro wa voltage ubwoko bwumuriro wa interineti ni capacitor nini.Hariho ubundi buryo butandukanye hagati yibi byombi, nka: itanura ryubwoko buringaniye burigihe bugenzurwa na thyristor, umutwaro wa resonance umuzunguruko ni parallel resonance, mugihe itanura ryubwoko bwa voltage intera intera rigenzurwa na IGBT, kandi umutwaro wa resonance yumuzingi ni Urukurikirane.Imiterere yacyo yibanze igaragara ku gishushanyo cya 2 n’ishusho ya 3.
ibisekuruza
Ibyo bita urwego rwohejuru ruhuza ibice bivuga ibice biri hejuru yumubare munini winshuro zifatizo zabonetse mugusenyera ibihe bya non-sinusoidal AC Fourier, mubisanzwe byitwa guhuza-murwego rwo hejuru.Inshuro (50Hz) Ibigize inshuro imwe.Kwivanga kwa Harmonic n "" imbogamizi rusange "bigira ingaruka kumiterere yububasha bwa sisitemu yubu.
Harmonics igabanya ihererekanyabubasha nogukoresha amashanyarazi, gukora ibikoresho byamashanyarazi gushyuha, gutera kunyeganyega n urusaku, gutuma urwego rwimitsi rwangirika, kugabanya ubuzima bwa serivisi, no gutera amakosa asanzwe no gucanwa.Ongera ibirimo guhuza, gutwika ibikoresho byindishyi za capacitor nibindi bikoresho.Mugihe aho indishyi zateshwa agaciro zidashobora gukoreshwa, hazacibwa amande yo gutesha agaciro kandi fagitire y amashanyarazi iziyongera.Imiyoboro ihanitse cyane izatera imikoreshereze mibi yibikoresho byo kurinda rela na robo zifite ubwenge, kandi gupima neza gukoresha ingufu bizitiranya.Hanze ya sisitemu yo gutanga amashanyarazi, guhuza bigira ingaruka zikomeye kubikoresho byitumanaho nibicuruzwa bya elegitoroniki.Umuvuduko ukabije wigihe gito hamwe nubushyuhe bwigihe gito butanga ubwuzuzanye bizasenya urwego rwimashini yimashini nibikoresho, bigatera amakosa yibice bitatu byumuzunguruko mugufi, kandi imiyoboro ya voltage na voltage ya transformateur yangiritse bizatanga igice cya rezonanse hamwe na parallel resonance mumashanyarazi rusange. , guteza impanuka zikomeye z'umutekano.
Itanura ryumuriro w'amashanyarazi hagati ni ubwoko bw'amashanyarazi aringaniye, ahindurwamo inshuro ziciriritse binyuze muri precision na inverter, kandi ikabyara umubare munini wibyangiza byateganijwe murwego rwo hejuru.Kubwibyo, kuzamura ingufu zamashyiga aringaniye byabaye umwanya wambere mubushakashatsi bwa siyanse.
gahunda y'imiyoborere
Umubare munini wamakuru uhuza itanura ryigihe gito byongereye impiswi ihumanya yumuriro wa gride.Ubushakashatsi ku kugenzura guhuza itanura rito hagati byabaye umurimo wihutirwa, kandi byahawe agaciro cyane nintiti.Kugirango habeho ingaruka zubwuzuzanye buturuka ku itanura ryumurongo wa gride rusange byujuje ibisabwa na sisitemu yo gutanga amashanyarazi no gukwirakwiza kubutaka bwubucuruzi bwibikoresho, birakenewe ko hafatwa ingamba zihamye zo kurandura umwanda.Ingamba zifatika nizi zikurikira.
Ubwa mbere, transformateur ikoresha Y / Y / uburyo bwo guhuza.Mumwanya munini wo hagati ya feri ya induction itanura, transformateur idashobora guturika ikoresha uburyo bwa w / Y / △.Muguhindura uburyo bwo gukoresha insinga ya ballast kugirango ivugane na transformateur ya AC kuruhande, irashobora guhagarika ibiranga urwego rwohejuru rwimikorere ya pulse itari hejuru.Ariko ikiguzi ni kinini.
Icyakabiri nugukoresha LC pasive filter.Imiterere nyamukuru nugukoresha capacator na reakteri mukurikirane kugirango zikore impeta za LC, zisa na sisitemu.Ubu buryo ni gakondo kandi burashobora kwishyura indinganizo hamwe nuburemere bwimitwaro.Ifite imiterere yoroshye kandi yakoreshejwe cyane.Nyamara, imikorere yindishyi igira ingaruka kubiranga imiyoboro hamwe nibidukikije bikora, kandi biroroshye gutera parallel resonance hamwe na sisitemu.Irashobora gusa kwishyura indinganizo yumurongo uteganijwe, kandi ingaruka zindishyi ntabwo ari nziza.
Icya gatatu, ukoresheje APF ikora muyunguruzi, murwego rwohejuru rwo guhuza uburyo ni uburyo bushya.APF nigikoresho cyindishyi zingirakamaro zubu, hamwe nigishushanyo kinini cyo kugabana no kwihuta kwihuta, irashobora gukurikirana no kwishyura indinganizo yimpanuka hamwe ninshuro zimpinduka nimbaraga, ifite imikorere myiza, kandi imikorere yindishyi ntizagerwaho ningaruka ziranga inzitizi.Ingaruka yindishyi zubu ni nziza, nuko ihabwa agaciro cyane.
Imbaraga zikora ziyungurura zatejwe imbere zishingiye kuyungurura, kandi kuyungurura ni byiza.Murwego rwibipimo byimbaraga zipakurura, ingaruka zo kuyungurura ni 100%.
Akayunguruzo gakomeye, ni ukuvuga, imbaraga ziyungurura, APF ikora amashanyarazi itandukanye nuburyo bwateganijwe bwindishyi zagenwe bwa LC gakondo, kandi ikamenya indishyi zikurikirana zikurikirana, zishobora kwishyura neza guhuza imbaraga nimbaraga zidasanzwe zingana nubunini.APF ikora muyunguruzi ni iyuruhererekane rwubwoko-bwohejuru bwa pulse ibikoresho byindishyi.Ikurikirana imizigo yimizigo mugihe nyacyo ukurikije ihinduka ryo hanze, ibara urwego rwohejuru-rwinshi rwimiterere yimiterere yimitwaro ukurikije DSP y'imbere, kandi ikanasohora ibimenyetso byubugenzuzi kubitanga amashanyarazi., Inverter itanga amashanyarazi ikoreshwa mugutanga urwego rwohejuru ruhuza imiyoboro ingana nubunini buringaniye bwumutwaro wo murwego rwohejuru, hamwe na rezo yo murwego rwohejuru ihuza ibyinjijwe mumashanyarazi kugirango ikomeze ibikorwa bya filteri ikora.
Ihame ry'akazi rya APF
Hongyan ikora muyunguruzi itahura imizigo mugihe nyacyo binyuze mumashanyarazi yo hanze ya CT, ikanakuramo ibice bihuza imizigo ikoresheje kubara imbere ya DSP, hanyuma ikabihindura mubimenyetso byo kugenzura mubitunganya ibimenyetso bya digitale.Mugihe kimwe, ibyuma byerekana ibimenyetso bya digitale bitanga urukurikirane rwibimenyetso bya PWM pulse yubugari kandi ikohereza mumbere ya IGBT power module, igenzura ibyasohotse muri inverter kugirango ihabanye nicyerekezo cyumutwaro uhuza imizigo, hamwe nubu hamwe na amplitude amwe, inzira ebyiri zihuza ziratandukanye rwose.Offset, kugirango ugere kumurimo wo gushungura guhuza.
Ibiranga tekinike ya APF
1. Kuringaniza ibyiciro bitatu
2. Indishyi zidasanzwe, zitanga ibintu
3. Hamwe nimikorere yimikorere igabanya, ntakibazo kirenze
4. Indishyi zuzuzanya, zishobora gushungura 2 ~ 50 zihuza icyarimwe icyarimwe
5. Igishushanyo cyoroshye no guhitamo, gusa ukeneye gupima ingano yimiterere ihuje
6. Icyiciro kimwe cya dinamike yo gutera inshinge, ntabwo byatewe nuburinganire bwa sisitemu
7. Igisubizo cyo guhindura ibintu muri 40US, igihe cyose cyo gusubiza ni 10ms (1/2 cycle)
Ingaruka
Igipimo cyo kugenzura guhuza ni hejuru ya 97%, kandi kugenzura guhuza ni ubugari inshuro 2 ~ 50.
Uburyo bwizewe kandi buhamye bwo gushungura;
Uburyo bwa mbere bwo guhungabanya uburyo bwo kugenzura inganda, guhinduranya inshuro zingana na 20KHz, bigabanya igihombo cyo kuyungurura kandi bitezimbere cyane gushungura umuvuduko nibisohoka neza.Kandi irerekana inzitizi zitagira umupaka kuri sisitemu ya gride, itagira ingaruka kuri sisitemu ya sisitemu;nibisohoka byahinduwe neza kandi bitagira inenge, kandi ntibizagira ingaruka kubindi bikoresho.
Kurwanya ibidukikije bikomeye
Bihujwe na moteri ya mazutu, kuzamura ubushobozi bwa backup power shunting;
Kwihanganira cyane kwinjiza voltage ihindagurika no kugoreka;
Igikoresho gisanzwe C cyo kurinda inkuba, kunoza ubushobozi bwo guhangana nikirere kibi;
Urwego rushoboka rwubushyuhe bwibidukikije rurakomeye, kugeza kuri -20 ° C ~ 70 ° C.
Porogaramu
Ibikoresho nyamukuru bya societe yashinze ni itanura ryigihe gito.Itanura ryumuriro hagati yumuriro nisoko isanzwe ihuza, itanga umubare munini wubwumvikane, bigatuma ubushobozi bwindishyi budakora neza.Cyangwa rero, ubushyuhe bwa transformateur bugera kuri dogere 75 mugihe cyizuba, bigatera gutakaza ingufu zamashanyarazi no kugabanya ubuzima bwayo.
Amahugurwa yo gushinga itanura ryigihe giciriritse akoreshwa na voltage 0.4KV, kandi umutwaro wacyo nyamukuru ni itanura rya 6-pulse ikosora hagati yumuriro wa interineti.Ibikoresho byo gukosora bitanga umubare munini wubwuzuzanye mugihe uhindura AC kuri DC mugihe cyakazi, nisoko isanzwe ihuza;umuyoboro uhuza urushinge winjizwa mumashanyarazi, ingufu za Harmonic zitangwa kumurongo wa gride, bigatera voltage ya gride no kugoreka kwubu, bigira ingaruka kumiterere yumuriro wumuriro numutekano wibikorwa, kongera umurongo wumurongo na voltage, kandi bigira ingaruka mbi kuri gride na ibikoresho by'amashanyarazi by'uruganda ubwabwo.
1. Isesengura rihuza imiterere
1) Igikoresho cyo gukosora itanura rya interineti hagati ni 6-pulse ishobora kugenzurwa;
2) Guhuza byakozwe na rectifier ni 6K + 1 bidasanzwe.Urukurikirane rwa Fourier rukoreshwa mu kubora no guhindura ikigezweho.Birashobora kugaragara ko imiterere yumurongo irimo 6K ± 1 ihuza cyane.Ukurikije imibare yikizamini cy itanura rito hagati, ihuriro Ibiriho byerekanwa kumeza hepfo:
Mugihe cyakazi cyo gutanura hagati yigihe kinini, havuka umubare munini wubwuzuzanye.Ukurikije ibizamini no kubara ibisubizo by'itanura rito hagati, imiterere iranga cyane cyane iya 5, naho iya 7, iya 11, na 13 zihuza ni nini cyane, kandi voltage no kugoreka kurubu birakomeye.
2. Gahunda yo kugenzura neza
Ukurikije uko ibintu byifashe muri uru ruganda, Hongyan Electric yateguye uburyo bwuzuye bwo kuyungurura ibisubizo kugirango igenzure neza itanura ryigihe gito.Urebye ibintu bitera imbaraga, ibikenerwa byo kwinjiza no guhuza imiterere, ibice byibikoresho byo kuyungurura byashyizwe kumurongo wa 0.4KV ntoya ya voltage yumushinga uhindura imishinga.Guhuza bigengwa.
3. Shungura ingaruka zisesengura
1) Igikoresho gikoreshwa muyungurura gishyirwa mubikorwa, kandi gihita gikurikirana impinduka yibikoresho bitandukanye byumutwaro w itanura ryigihe gito, kugirango buri guhuza bishobora gushungura neza.Irinde umunaniro uterwa na parallel resonance ya banki ya capacitor hamwe na sisitemu ya sisitemu, kandi urebe ko imikorere isanzwe yinama y’abashinzwe kwishyura amashanyarazi;
2) Imiyoboro ya Harmonic yatejwe imbere nyuma yo kuvurwa.Imiyoboro ya 5, 7, na 11 ihuza itarakoreshejwe yararenze cyane.Kurugero, ihuriro rya 5 rihuza kuva kuri 312A kugeza kuri 16A;icyerekezo cya 7 gihuza kigabanuka kuva 153A kugera kuri 11A;ihuriro rya 11 rihuza kuva kuri 101A kugeza kuri 9A;Hindura ku rwego rwigihugu GB / T14549-93 “Imbaraga zujuje ubuziranenge bwa Gride rusange”;
3) Nyuma yo kugenzura guhuza, ubushyuhe bwa transformateur buragabanuka kuva kuri dogere 75 kugera kuri dogere 50, bizigama ingufu nyinshi zamashanyarazi, bigabanya igihombo cyinyongera cya transformateur, bigabanya urusaku, bizamura ubushobozi bwimitwaro ya transformateur, kandi birebire ubuzima bwa serivisi bwa transformateur;
4) Nyuma yo kuvurwa, ubwiza bwamashanyarazi y itanura ryigihe gito bugenda butera imbere neza, kandi igipimo cyo gukoresha amashanyarazi hagati yigihe gito kiratunganywa, kikaba gifasha imikorere yigihe kirekire mumutekano nubukungu bya sisitemu no kunoza imikorere. inyungu z'ubukungu;
5) Kugabanya agaciro keza k'ubu kanyuze mumurongo wo kugabura, kunoza ibintu byingufu, no kuvanaho imiyoboro inyura mumurongo wo kugabura, bityo bikagabanya cyane gutakaza umurongo, kugabanya ubushyuhe bwikwirakwizwa rya kabili, no kunoza umutwaro ubushobozi bw'umurongo;
6) Kugabanya ikoreshwa nabi cyangwa kwanga ibikoresho byo kugenzura nibikoresho byo kurinda relay, no kunoza umutekano n’ubwizerwe bw’amashanyarazi;
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8) Nyuma yuko APF imaze guhuzwa, irashobora kandi kongera ubushobozi bwimitwaro ya transformateur nogukwirakwiza insinga, ibyo bikaba bihwanye no kwagura sisitemu kandi bigabanya ishoramari mukwagura sisitemu.
Igihe cyo kohereza: Apr-13-2023