Matsayin yadda ita ce a gina masu sauki na tsakiyar kula?
A cikin transformer mai kula (SST), ko da ake kira power electronic transformer (PET) yana amfani da matsayin alama na gaba-gaban fahimtar teknologi da take da tushen rayuwa. Yanzu, SSTs sun samu matsayin tsari na volts 10 kV da 35 kV a kafin kungiyar da suka shafi masu sayarwa, amma a kafin kungiyar da suka shafi masu sayarwa, suna cikin yanayin laboratory da sabon abubuwan bayanai. Tabeli tana nuna hanyar da ya ba da tsari na volts a kafin kungiyoyin da dama:
| Tushen Rayuwa | Tsari na Volts | Iyaiciroccin Fanni | Bayanai da Mawakin |
| Data Center / Gida | 10kV | Amfani Da Aiki | Akwai abubuwan da suka fi sani. Misali, CGIC ta bayar 10kV/2.4MW SST don "East Digital and West Calculation" Gui'an Data Center. |
| Kungiyar Kungiya / Park - level Demonstration | 10kV - 35kV | Sabon Abubuwan Bayanai | Wasu mu'ammarin sararin sun fito 35kV prototypes da suka yi bayanai game da kungiyar, wanda shine tsari na volts mafi yawa da aka sanin cewa ana iya amfani da shi a kan fannin aiki. |
| Kafin Kungiyar da Suka Shafi Masu Sayarwa na Noma | > 110kV | Laboratory Principle Prototype | Jami'ohi da ma'aikata masu ilimi (kamar Jami'ar Tsinghua, Global Energy Internet Research Institute) sun fito prototypes na tsari na volts 110kV ko da yake, amma babu abubuwan da suka amfani aiki da suka samu. |
1. Me kuma ya zama rasu a duba tsari na volts?
Tsari na volts na transformer mai kula (SST) ba za a iya duba tare da mutumutuwa baki daya; an rasa da wasu iyaiciroccin fanni na gargajiya:
1.1 Matsayin haɗin kula na kayan aiki mai sauran semiconductors
Wannan shine kofin gaba-gaba. Yanzu, SSTs na musamman sun amfani da IGBTs ko da SiC MOSFETs masu yawan faɗa.
Matsayin haɗin kula na wani siyasa na SiC yana cikin 10 kV zuwa 15 kV. Don duba tsari na volts masu yawan faɗa (misali, 35 kV), yawancin siyasa suna buƙata tare da series. Amma, buƙatar series na iya shiga batun da ke cikin "voltage balancing issues," inda farkon damar siyasa na iya shiga batun da ke cikin voltage imbalance da zai iya shiga module failure.
1.2 Batun da ke cikin fanni na insulation na high-frequency transformer
Yadda takarda na SSTs yana cikin tsari na kusa, yana cikin fanni na high-frequency operation. Amma, a kan high frequencies, matsayin performance na insulation materials da electric field distribution yana cikin batun da ke cikin. Yawan tsari na volts, yawan matsayin insulation design, manufacturing processes, da thermal management na high-frequency transformer. Duba tens of kV-level high-frequency insulation a kan tsari na kusa yana cikin batun da ke cikin materials da design.
1.3 Batun da ke cikin system topology da control
Don duba tsari na volts masu yawan faɗa, SSTs suna amfani da cascaded modular topologies (misali, MMC—Modular Multilevel Converter). Yawan tsari na volts, yawan sub-modules da ke buƙata, wanda yake shiga batun da ke cikin system structure. Control difficulty yana zama zama, da cost da failure rate yana zama zama.
2. Afaka
Idan akwai batun da ke cikin, technological breakthroughs sun ci gaba:
Device advancement: Higher-voltage-rated SiC and gallium nitride (GaN) devices sun ci gaba da development da su ne foundation don duba higher-voltage SSTs.
Topology innovation: New circuit topologies, such as hybrid approaches (combining conventional transformers with power electronic converters), are considered a viable path for rapid breakthroughs in high-voltage applications.
Standardization: As organizations like IEEE begin to establish SST-related standards, this will promote standardized design and testing, accelerating technological maturity.
3. Kasarwa
Yanzu, 10 kV SSTs sun ci gaba da amfani da aiki, da 35 kV level na mafi yawa a sabon abubuwan bayanai, amma tsari na volts 110 kV da yake sun cikin yanayin fanni na ilimi. Duba tsari na volts na solid-state transformer yana cikin batun da ke cikin da yake za a iya shiga coordinated progress in power semiconductors, materials science, control theory, and thermal management technologies.
