Gari ya moshi yihuta ya maglev ikorera muri Shanghai ni gari ya moshi ya TR08 yatumijwe mu Budage, ikoresha moteri ndende ya moteri ya syncronique hamwe na sisitemu yo guhora itwara ibintu. Sisitemu yo gukurura amashanyarazi yerekanwe mubishusho 1, kandi igizwe nibice byingenzi nka transformateur nini cyane (110kv / 20kv), impinduka yinjira, ihindura ibyinjira, inverter, hamwe na transformateur isohoka.
Sisitemu yo gukwirakwiza amashanyarazi ya gari ya moshi ya maglev ihindurwa kuva kuri 110kv ya gride ya gride ikagera kuri 20kv binyuze mumashanyarazi menshi, hanyuma igahinduka kuri voltage ya DC ya 00 2500v na transformateur yinjiza hamwe ninjiza ihindura. Umuvuduko wa DC uva kumurongo wa DC uhindurwamo ingufu zicyiciro cya gatatu cyingufu za AC hamwe numurongo uhinduka (0 ~ 300Hz), amplitude ihinduka (0 ~ × 4.3kv), hamwe nimpande zicyiciro (0 ~ 360 °) nibice bitatu inverter.Guhindura gukurura gari ya moshi ya maglev ifite uburyo bubiri bwo gukora:
. Muri iki gihe, ibice bibiri byingingo eshatu zihinduranya bihujwe mu buryo bubangikanye, kandi ibisohoka bihuzwa binyuze muburyo bwambere bwo guhinduranya ibintu bisohoka nkuko bigaragara ku gishushanyo cya 1. Muri iki gihe, guhinduranya kwambere kwa transformateur gusohora bihwanye na a kuringaniza kuringaniza reaction, kandi ikanagira uruhare mu kuyungurura.
. Muri iki gihe, ibice bibiri bya inverters muburyo bukuru bwo gukurura bihujwe murukurikirane kuruhande rwibanze rwibisohoka, kandi ibisohoka bisohoka nyuma yimikorere ihindura imbaraga.
Impinduka ya EFD Impinduka ya EI Impinduka ya PQ
3.1 Iyinjiza
Icyiciro cyimbere cyinjiza gihindura kigizwe na voltage nini cyane na transformateur yinjira. Ihinduramiterere ryinjiza rigizwe na transformateur ebyiri zikosora, umurimo wazo ni ukugabanya ingufu za voltage nini ya gride ya voltage binyuze mumashanyarazi ya kabiri hanyuma ikohereza mubyahinduwe. Kubushobozi bunini cyane bwa voltage ikosora impinduka, murwego rwo kunoza imikorere yo gukosora, hakoreshwa ibice bibiri byikiraro cya 6-pulse ikosora. Buri cyiciro cyo gukosora ibintu gikoreshwa nimbaraga ebyiri zo guhinduranya ibyiciro bitatu, imwe y ihuza hamwe na d ihuza. Sisitemu ihinduranya sisitemu ifata gahunda yibice bitatu byicyiciro kimwe cyimyanya itatu ihinduranya, ihujwe no gukora gahunda y / y, d itsinda ryogukosora gahunda yerekanwe kumashusho 2 binyuze mumihuza yagenwe ya buri kizunguruka. Ibyiza byingenzi ni:
(1) Ubushobozi buke bwibikoresho, byubukungu;
(2) Ubushobozi buke bumwe, byoroshye kuzuza ibisabwa byubwikorezi kubunini bwibikoresho;
.
Kugirango ugenzure DC ihuza voltage yumuzunguruko wo hagati no kugabanya umunezero wa gride kuruhande, buri gikosora sisitemu igizwe nibice bitandatu byimpande eshatu zigenzurwa byuzuye ikiraro gikosora hamwe nikiraro cya pulse esheshatu ibyiciro bitatu bitagenzuwe neza murukurikirane, nkuko bigaragara ku gishushanyo cya 2. Muri ubu buryo, ibice bibiri byo gukosora byahujwe mu ruhererekane, kandi ingingo yo hagati igashingirwaho binyuze mu guhangana cyane (nkuko bigaragara ku gishushanyo 1), bigakora ibice bitatu bishobora kuzunguruka hagati ya DC. . Umuvuduko wa DC ihuza urashobora kugenzurwa, kuva kuri 2 × 1500V kugeza 2 × 2500V, naho igipimo cyagenwe ni 3200A. Kugirango ubone amashanyarazi meza ya DC, reaktori yoroshye ihujwe murukurikirane mumuzunguruko hagati. Muri icyo gihe, mu rwego rwo gukumira ikiraro gikosora hamwe na DC ihuza umuriro mwinshi, hafashwe ingamba zo kurinda uruhande rwa DC. Mumurongo wa DC uhuza uruziga rwagati, hariho thyristors hamwe nimbaraga zirwanya imbaraga hamwe no gukingira ibintu nkibikoresho byo kwinjiza uruhande rwa DC kugirango uhagarike ingufu zirenze urugero. Mubyongeyeho, ingingo yo hagati ya DC ihuza uruziga rwagati ishingiye kuburinzi bukomeye kandi ifite amakosa yubutaka.
3.2 Gukurura inverter
(1) Imiterere ihindagurika
Imiterere yicyiciro kimwe muri inverter yicyiciro cya gatatu ya gari ya moshi ya Shanghai Maglev irerekanwa ku gishushanyo cya 3. Umuyoboro nyamukuru ukoresha GTO igikoresho cyuzuye. Inzira nyamukuru ifata imiyoboro ibiri nyamukuru ikurikiranye hamwe na diode ifata hagati. Uyu muzunguruko nanone witwa ingingo eshatu (cyangwa urwego-rwo hagati rwashyizwe hagati) inverter. Ibi birashobora kugabanya umuyoboro wingenzi kwihanganira voltage igice. Mugihe kimwe, munsi yuburyo bumwe bwo guhinduranya no kugenzura uburyo, guhuza imbaraga ziva mumashanyarazi cyangwa amashanyarazi biri munsi yurwego rwibiri, kandi nubusanzwe-voltage isanzwe itangwa na voltage isohoka kuri moteri ya moteri nayo ni mike , bikaba byiza kongera ubuzima bwa serivisi ya moteri.
Imiyoboro ine yingenzi ya buri cyiciro cyikiraro cyamaboko ifite bitatu bitandukanye kuri off-off hamwe, kandi bisohora voltage zitandukanye (reba Imbonerahamwe 1). Umuvuduko w'amashanyarazi wa GTO nyamukuru ni 4.5kV, naho amashanyarazi ni 4.3ka. Inverteri y'ingingo eshatu isaba ko V1 na V4 nyamukuru bidashobora gukingurwa icyarimwe, kandi impiswi zo kugenzura za V1 na V3, V2 na V4 ziratandukanye. Mubyongeyeho, ibyavuzwe haruguru byingenzi kuri off-off bigomba kubahiriza ihame rya mbere hanyuma hanyuma.
Inverteri yinzego eshatu yatejwe imbere hashingiwe kumurongo ibiri inverter. Kwinjiza tekinoroji ikuze yo kugenzura ibyiciro bibiri byimbere muri inverter yo murwego rwa gatatu byashizeho ingamba zitandukanye zo kugenzura inverter. Kugeza ubu, ingamba zikuze zo kugenzura zikoreshwa muburyo butatu bwo guhinduranya ni: uburyo bumwe bwo kugenzura impiswi, uburyo bwo kugenzura hejuru no hepfo ya modulisiyo yo kugenzura SPWM, uburyo bwo kugenzura 120 ° uburyo bwo kugenzura PWM, 90 ° icyiciro cyatangaje uburyo bwo kugenzura PWM, kutagira aho bibogamiye bishobora gutandukana guhagarika uburyo bwa PWM bwo kugenzura, guhinduranya inshuro nziza uburyo bwiza bwo kugenzura PWM, uburyo bwihariye bwo gukuraho uburyo bwo hasi bwo gukuraho (SHEPWM), uburyo butatu bwo mu bwoko bwa inverter voltage space vector uburyo bwo kugenzura (SVPWM) hamwe nuburyo budafite aho bugarukira bushobora guhagarika voltage umwanya wa vector uburyo bwo kugenzura [2,3 ].
(2) Inzira ya GTO
Imashanyarazi ifite ingufu nyinshi GTO igomba kubanza gukemura ibibazo byo kwigunga no kurwanya kwivanga. Ikimenyetso cyerekana imbarutso ya GTO mumashanyarazi nyamukuru ya gari ya moshi ya Shanghai Maglev yanduzwa na fibre fibre optique, bityo ibibazo byo kwigunga no kurwanya kwivanga bikemurwa, bityo bikareba neza niba impanuka ya GTO iterwa no kurinda umutekano wa Maglev mu buryo butaziguye Gariyamoshi. Mubyongeyeho, urufunguzo rwo kumenya niba ingufu za GTO zifite imbaraga nyinshi zishobora gukora mubisanzwe biri mumashanyarazi. Amplitude yumuryango wa GTO trigger pulse igomba kuba ndende bihagije, kandi impande zayo zigomba kuba zihanamye, mugihe impande zinyuranye zigomba kuba zoroheje. Kugira ngo ibyo bisabwa bishoboke, amashanyarazi atwara amarembo ya GTO mumashanyarazi nyamukuru ya gari ya moshi ya Maglev ni 45V / 27A, kandi ibimenyetso byerekana inzira hamwe na voltage yerekana ibimenyetso bya GTO trigger pulse byoherejwe muri sisitemu yo kugenzura. Byongeye kandi, impinduka nyamukuru yo gukurura gari ya moshi ya Shanghai Maglev ikoresha uburyo butandukanye bwo kurinda: kurinda ingufu zirenze urugero kumashanyarazi ya feri, kurinda imipaka ikabije, guhagarika impiswi no gutahura amakosa yubutaka.
(3) Inzira ya Absorption
Hariho imiyoboro myinshi yo kwinjiza GTO. Inzira yo kwinjiza ibice bitatu byingenzi bikurura inverter ya gari ya moshi ya Shanghai Maglev irerekanwa ku gishushanyo cya 3. Umuzunguruko winjira ugomba kwemeza ko di / dt na du / dt ya GTO bitarenze agaciro kemewe iyo ari gukora. Muri ubu buryo, umuzunguruko wa GTO ugomba kuba ufite inductor na capacitor C. Mu gishushanyo cya 3, inductors L1, L2 na GTO zahujwe zikurikirana kugirango zigabanye di / dt ya GTO. Diode D11, D12, ristoriste R1 na inductor L1 bigize uruziga rwo gusohora ingufu za inductor ubwayo. Imashanyarazi C11 na C12 zikoreshwa mukugabanya du / dt ya GTO, naho diode D12 na D13 bigize uruziga rwo gusohora ingufu za capacitor. Ugereranije n’umuzunguruko wa RCD, umuzunguruko wavuzwe haruguru wongeyeho capacitor nini C12, bityo ubushobozi bwo kuzimya C11 ni kimwe cya kabiri cyagaciro ka capacitance yumuzunguruko wa RCD, bityo igihombo nacyo kigabanukaho kimwe cya kabiri; icyarimwe, capacitor C12 igira uruhare rwo gufunga voltage, ikoreshwa muguhashya kuzimya umuriro wa GTO. Kuri inverteri ya 1500kva, gutakaza uyu muyoboro winjiza ni hafi nkuw'umuzunguruko wa asimmetric.
ER Ubwoko bwa Transformer Guhindura ubwoko bwa transformateur 5V-36V Ferrite Core Transformer
4 Umwanzuro
Sisitemu yo gukurura amashanyarazi ya gari ya moshi yihuta ya maglev ifite ibintu bikurikira:
(1) Ifata umuvuduko mwinshi wihuta usanzwe ugereranya moteri. Sisitemu yo gukwirakwiza amashanyarazi yose ishyirwa hasi kandi ntigarukira ku mwanya wumubiri wikinyabiziga, kikaba kijyanye nuburyo bwiza bwo gutanga amashanyarazi atatu;
.
.
. Sisitemu yo gutanga amashanyarazi no gukurura sisitemu nimwe murufunguzo rwo kugenzura imikorere itekanye kandi ihamye ya gari ya moshi. Ihame n'imiterere byayo bikeneye ubundi bushakashatsi no gusesengura.
Zhongshan XuanGe Electronics Co., Ltd. ni uruganda ruzobereye muri R&D, gukora no kugurishaimpinduka nini kandi ntoya, inductorsnaLED amashanyarazi.
Isosiyete yatangiriye i Shenzhen, ku isonga mu kuvugurura Ubushinwa no gufungura, kandi yashinzwe mu 2009. Mu myaka yashize, twakomeje gutera imbere no gutera imbere. Kugeza 2024, dufite uburambe bwimyaka 15 mugukora ibyuma bihindura imirongo myinshi, kandi uburambe bwacu buhanitse bwatumye XuanGe Electronics yamenyekana neza kumasoko yimbere mugihugu no mumahanga.
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Igihe cyo kohereza: Gicurasi-30-2024