Izindaba Zemboni

Ukuhlukaniswa kwamazinga kagesi ezinhlelweni zamandla kubalulekile ekuqinisekiseni ukudluliswa kwamandla, ukusatshalaliswa, kanye nokuphepha okusebenzayo. Amazinga kagesi anquma ukuthi ugesi uthuthwa kanjani kuwo wonke amagridi, alinganiswe ukuze kube nokwenzeka kwezobuchwepheshe kanye nezomnotho, futhi avumelaniswe nezinhlelo zokusebenza ezahlukahlukene. Lesi sihloko sihlola izindlela nezindinganiso ezilawula lokhu kuhlukaniswa, ngokugxila kui-voltage ephezulu (i-HV),i-voltage ephakathi nendawo (MV),i-voltage ephansi (LV), kanyei-voltage ephezulu kakhulu (i-UHV).Ukuhlukaniswa kwamazinga kagesi ezinhlelweni zamandla kubalulekile ekuqinisekiseni ukudluliswa kwamandla, ukusatshalaliswa, kanye nokuphepha okusebenzayo. Amazinga kagesi anquma ukuthi ugesi uthuthwa kanjani kuwo wonke amagridi, alinganiswe ukuze kube nokwenzeka kwezobuchwepheshe kanye nezomnotho, futhi avumelaniswe nezinhlelo zokusebenza ezahlukahlukene. Lesi sihloko sihlola izindlela nezindinganiso ezilawula lokhu kuhlukaniswa, kugxilwe kui-voltage ephezulu (i-HV),i-voltage ephakathi nendawo (MV),i-voltage ephansi (LV), kanyei-voltage ephezulu kakhulu (i-UHV).

Njengomkhiqizi ohamba phambili ogxile kuma-transformer aphakathi naphezulu, i-JZP Power Transformer ijabule kakhulu ukumemezela ukubamba kwethu iqhaza ku-ENLIT Europe 2025—umcimbi ohamba phambili wezwekazi wokusungula izinto ezintsha zamandla. Kusukela ngoNovemba 18–20, 2025, sizobonisa izixazululo zethu ezisezingeni eliphezulu e-Bilbao Exhibition Centre (48100 Bilbao, Bizkaia, Spain). Sivakashele e-Booth 3.F122 ukuthola ukuthi silakha kanjani ikusasa lokudluliselwa kwamandla nokusatshalaliswa kwawo.

Esimweni esishintshashintshayo sengqalasizinda yamandla yomhlaba wonke, i-JZP imele njengebutho eliphayona eligxile kuma-transformer aphakathi naphezulu—umgogodla wokudluliselwa kwamandla, ukusatshalaliswa, kanye nokusetshenziswa kwawo ngempumelelo. Njengoba sinobuchwepheshe obuningi, ubuchwepheshe obusezingeni eliphezulu, kanye nokuzibophezela okungapheli ekhwalithini, sinika amandla izimboni, izinsiza, kanye namaphrojekthi emhlabeni wonke ukuze kufezwe izixazululo zamandla ezithembekile, eziqhubekayo, nezingabizi kakhulu.

I-Switchgear isebenza njengomgogodla wezinhlelo zamandla kagesi ophakathi nophezulu (i-MV/HV), yenza imisebenzi emithathu ebalulekile kuma-transformer:

• ​Ukusatshalaliswa Kwamandla: Ihambisa ugesi kusuka kuma-transformer kuya emithwalweni ngokusebenzisa ama-feeder, ama-busbar, namadivayisi okuvikela.
• ​Ukuvikelwa Kwephutha: Iphazamisa amaphutha emifudlaneni ngaphakathi kwama-millisecond (isb., amandla okuphuka kwe-short-circuit angu-31.5kA–40kA) ukuvimbela umonakalo wemishini.
• ​Ukuhlukaniswa Kokuphepha: Iqinisekisa ukulungiswa okuphephile ngokusebenzisa izingidi zokuxhumanisa kanye nezindlela zokufaka isisekelo.

Isibonelo, uhlelo lwe-12kV ludinga indawo encane ukusuka phansi iye phansi engu-125mm (efakwe umoya) noma engu-40mm (efakwe igesi) ukuvimbela ukugoba

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​Ukuhlaziywa Okuningiliziwe Kwezinhlobo Ze-M&H Voltage Power Electronic Transformer, Ukucushwa Kwesakhiwo, kanye Namapharamitha Ayisihluthulelo

I-topology ye-Neutral Point Clamped (NPC) multilevel iboniswa. Ngaphandle kwe-topology ye-NPC ene-diode-clamped, i-topology ye-NPC ifaka phakathi uhlobo lwe-flying capacitor kanye nohlobo lwe-hybrid clamped, phakathi kokunye. Kodwa-ke, ngenxa yobuningi be-capacitor obukhulu, i-topology ye-NPC isasebenzisa kakhulu amadivayisi okushintsha angasebenzi noma asebenzayo ukuze ibambe. Uma sibheka i-topology ye-diode-clamped multilevel njengesibonelo, ku-topology yesigaba sokulungisa izigaba ezintathu, umlenze ngamunye wesigaba uqukethe ama-transistors okushintsha ahlanganisiwe kanye nama-diode okubopha, axhunywe ngokuhambisana nebhasi elilodwa le-DC elinomthamo ophezulu. Izincwadi ziphakamise i-topology ye-PET yesigaba esisodwa enesigaba sokulungisa kusetshenziswa isekethe ene-diode-clamped enezigaba ezine. Ibhasi elilodwa le-DC elinomthamo ophezulu lilandelwa ama-DAB okufaka uchungechunge-lokukhipha-okuhambisanayo, njengoba kuboniswe. Le topology ingandiswa ibe yisakhiwo sezigaba ezintathu, futhi inani lamazinga e-voltage lingashintshwa ngokusekelwe emazingeni e-voltage amelana nedivayisi kanye nezinga le-voltage eseceleni le-voltage ephezulu. Njenge-topology ye-MMC, i-topology ye-NPC ingasetshenziswa nasesigabeni sokuhlukaniswa, ixhumanisa ibhasi le-DC elinamandla aphezulu ne-transformer yokuhlukaniswa, njengoba kuboniswe. Izincwadi zisebenzise i-converter ye-NPC ene-diode-clamped yezinga ezintathu ohlangothini lwe-voltage ephezulu ye-converter ye-LLC resonant, ziyiqinisekisa ku-prototype engu-166kW/2kV ~ 400V. Izincwadi zisebenzise isekethe ye-NPC ene-diode-clamped yezinga ezintathu ku-DAB enezigaba ezintathu, zafinyelela i-voltage ye-DAB efanele kanye nezici zamanje.

Izinhlobo ze-PET ziyahlukahluka kakhulu. Ngokusekelwe enanini lezigaba zokuguqulwa kwamandla, zingahlukaniswa ngezinhlobo zesigaba esisodwa, ezimbili, kanye nezigaba ezintathu [7]. Izakhiwo zesigaba ezimbili zifaka phakathi lezo ezinamabhasi e-DC ane-voltage ephezulu kanye ne-voltage ephansi, njengoba kuboniswe ku-Figure 1.

Ngesiphakamiso somqondo we-inthanethi yamandla kanye nokusetshenziswa kabanzi kobuchwepheshe obuhlobene negridi ehlakaniphile, isilinganiso semithombo yamandla avuselelekayo njengamandla omoya kanye ne-photovoltaic ohlelweni lwamandla olukhona luzokhula kakhulu. Lokhu kubonisa ukuthi amagridi kagesi esikhathi esizayo azoba ahlakaniphile futhi aguquguquke. Ku-inthanethi yamandla, njengoba isilinganiso sabasebenzisi abasatshalaliswe kanye nezinsiza zamandla sikhuphuka, ukudluliswa kukagesi kudinga amakhono alawulekayo kakhulu. Kumanethiwekhi okusabalalisa ahlakaniphile, igridi kumele igcine ukuphakelwa kukagesi okuzinzile kakhulu futhi okuseqophelweni eliphezulu ngenkathi ihlanganisa ngokufanele inani elikhulu lemithombo yamandla avuselelekayo asatshalaliswe kanye nokuqapha/ukuphatha izimo zokusebenza kwegridi. Lezi zidingo zibeka izidingo eziqinile ekuhlakanipheni kwemishini yegridi yamandla, kuyilapho ama-transformer emvamisa yamandla endabuko ebhekene nemikhawulo yokusebenza ngokwemvelo.

I-transformer enamandla aphezulu iyithuluzi likagesi elenzelwe ukuguqula amandla kagesi phakathi kwamazinga kagesi, ngokuvamile elisebenza ngaphakathi kwebanga110 kV kuya ku-500 kVLawa ma-transformer abalulekile ezinhlelweni zokudlulisa amandla, anciphisa ukulahlekelwa kwamandla ngesikhathi sokudlulisa amandla ibanga elide ngenkathi eqinisekisa ukulethwa kukagesi okuphephile emakhaya, emabhizinisini nasezimbonini. Isibonelo, izitshalo zikagesi zikhiqiza ugesi ngama-voltage aphezulu, futhi ama-transformer alungisa le voltage—kungaba ukuyikhuphula ukuze idluliselwe noma ukuyikhuphula ukuze isetshenziswe ngabasebenzisi bokugcina—ukuze kwandiswe ukusebenza kahle nokuphepha.

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I-JZP Transformer ingumholi womhlaba wonke ekukhonzeni umkhakha wamandla avuselelekayo emhlabeni jikelele. Ngomlando oqinisekisiwe, sihlinzeke ngezinkulungwane zama-transformer kumaphrojekthi okugcina i-photovoltaic kanye nokugcina amandla kulo lonke elaseNyakatho Melika, eYurophu nase-Australia. Imikhiqizo yethu ayihlangabezani nje kuphela nezindinganiso eziqinile njenge-IEEE, ANSI, CSA, AN, IEC, kanye ne-BS, kodwa futhi inezitifiketi ezifaka phakathi i-UL, cUL, CSA, CE, SGS, nezinye, ezisekelwa yimibiko yokuhlola ephelele.