Phetoho ea 96kVA High-Voltage Medium Frequency Ntlafatso ea Mahlakore a Mangata: Ho Ntlafatsa Bokgoni, Tsamaiso ea Thermal, le ho Lumellana ha Elektromakenete

Li-transformer tsa maqhubu a mahareng (MFTs) ke likarolo tsa bohlokoa li-elektroniki tsa motlakase tsa sejoale-joale, tse nolofalletsang phetoho e nyane le e sebetsang hantle ea matla ho pholletsa le lits'ebetso tse kang kopanyo ea matla a nchafatsoang, litsamaiso tsa ho futhumatsa tsa indasteri le tsa ho hula. Bakeng sa maemo a matla a phahameng a hlokang bokhoni ba 96kVA, ho ntlafatsa li-transformer tsena ho pholletsa le katleho, tsamaiso ea mocheso, le ho lumellana ha motlakase (EMC) ho bohlokoa ho fihlela litlhoko tsa ts'ebetso le ts'epo. Sengoloa sena se hlahloba mokhoa oa ntlafatso oa mahlakore a mangata bakeng sa li-MFT tse nang le motlakase o phahameng oa 96kVA, ho kopanya boqapi ba thepa, ketsiso e tsoetseng pele, le ntlafatso ea moralo oa sebopeho.

1. Khetho ea Lisebelisoa tsa Bohlokoa: Ho Leka-lekanya Tahlehelo le Karabelo ea Khafetsa

Ka maqhubu a mahareng (hangata 1–20 kHz), tahlehelo ea mantlhale tahlehelo e potolohange ba liphephetso tse kholo. Li-alloy tsa tšepe ea silicon (SiFe) tsa setso li bontša tahlehelo e phahameng ea hysteresis le eddy-current maqhubung a phahameng, e leng se fokotsang katleho. Mekhoa e meng e kang nanocrystallinele metsoako e kopantsoeng e se nang sebopehofana ka tshebetso e phahameng:

• Li-cores tsa nanocrystalline (mohlala, Vitroperm) li kopanya bongata bo phahameng ba phallo ea saturation (≥1.2 T) le tahlehelo e tlase ea mantlha e itseng, e fihlelang ho fihlela Bokgoni ba 6%ka mehlala ea 50 kW–5 kHz.
• Li-alloy tse sa fetoheng li fokotsa tahlehelo ea mantlha ka ≈60% ha li bapisoa le SiFe, e leng ea bohlokoa bakeng sa ho fokotsa tahlehelo ea ho se be le mojaro.

Bakeng sa di-winding, Terata e tsielehilenge sebetsa hantle ho feta foil ea koporo maemong a maqhubu a phahameng ka ho fokotsa litlamorao tsa letlalo le bohaufi. Lithuto li bontša hore meralo ea terata ea Litz e fokotsa khanyetso ea AC ka ≈30%, e fokotsa tahlehelo ea ho kobeha ka kakaretso le ho nolofalletsa matla a mangata a mangata.

2. Taolo ea Thermal: Ho Thibela ho Futhumala ho Feteletseng ha Sebaka

Keketseho ea tahlehelo maqhubung a mahareng e phahamisa khatello ea mocheso. Liketsiso tsa fisiks tse ngata (mohlala, ANSYS Maxwell + Icepak) li etsa 'mapa oa kabo ea tahlehelo le ho khetholla libaka tse chesang. Maano a ntlafatso a kenyelletsa:

• Mekhoa e tsoetseng pele ea ho pholisa: Meralo e qoelitsoeng ka oli e nang le likanale tse ngata tsa oli e fokotsa mocheso o chesang ka ho fihlela ho 18%khahlano le ho pholisa ho sa sebetseng.
• Li-encapsulant tse tsamaisang mocheso: Lisebelisoa tse kang li-resin tsa epoxy li ntlafatsa ho qhalana ha mocheso ha li ntse li boloka botsitso ba ho thibela mocheso.
• Litokiso tsa sebopeho: Ho fetola karolelano ea bophahamo-ho-bophara ba karolo ea mantlha ho ntlafatsa karolelano ea sebaka-ho-bophahamo, ho ntlafatsa phallo ea tlhaho.

3. EMC le Taolo ea ho Dutla ha Molumo: Sebopeho sa ho Sireletsa le ho Kobeha

Ts'ebetso ea maqhubu a phahameng e eketsa tšitiso ea motlakase (EMI) e tsoang ho phallo ea ho lutla. Ho ntlafatsa EMC:

• Tšireletso ea motlakase: Lithebe tsa Ferrite kapa nanocrystalline li thibela masimo a lahlehileng a maqhubu a phahameng.
• Litlhophiso tsa ho kobeha: Mabili a kopaneng kapa a arohaneng a fokotsa ho dutla ha metsi ka ≈25%, e leng se fokotsang tlhahiso ya EMI.
• Moralo o nepahetseng oa ho thibela mocheso: Ho leka-lekanya botenya ba insulation (bakeng sa ho itšehla thajana ka motlakase o phahameng) ka ho ba bonyenyane ho fokotsa bokgoni ba parasitic, ho fokotsa ho sisinyeha ha resonant.

4. Netefatso: Ketsiso le Prototyping

Tlhahlobo ea likarolo tse lekanyelitsoeng (FEA) le matla a mokelikeli oa k'homphieutha (CFD) li netefatsa meralo pele ho etsoa mohlala. Mohlala:

• Mohlala oa MFT oa 4.1 MVA/1 kHz o fihletsoe Bokgoni ba >99.2%ho sebelisoa li-core tse se nang sebopeho le li-winding tsa terata tsa Litz tse ntlafalitsoeng.
• Di-algorithms tse thehilweng hodima gradient (mohlala, mokhoa o tebileng ka ho fetisisa wa ho theoha) di nolofatsa ntlafatso ya dipheo tse ngata, ka nako e le nngwe di ntlafatsa bokgoni, bongata ba matla le tshebetso ya mocheso.

5. Likopo le Tlhahiso ea Boleng

Li-MFT tsa 96kVA tse ntlafalitsoeng li fana ka melemo e bonahalang:

• Matla a ka nchafatsoang: Boholo bo bonyenyane (≈43% phokotso ea boima ba 'mele ha bo bapisoa le li-transformer tsa maqhubu a mola) 'me bo sebetsa hantle haholo ho lumellana le li-converter tsa letsatsi/moea.
• Mekhoa ea indasteri: Ho mamella mocheso ho matlafatsang ho netefatsa ts'epahalo mesebetsing e tswelang pele jwalo ka ho qhibilihisa ha induction.
• Meralo ea motheo ea ho hula le ho kenya gridi: Ho latela maemo a EMC (mohlala, IEC 61800-3) ho fokotsa tšitiso maemong a sistimi.

Qetello

Ntlafatso ea mahlakore a mangata ea li-MFT tse nang le motlakase o phahameng tsa 96kVA—ka saense ea thepa, moralo oa mocheso, le boenjiniere bo shebaneng le EMC—e nolofalletsa melemo ea phetoho ea bokhoni, bongata ba matla le botšepehi. Ka ho sebelisa lisebelisoa tse tsoetseng pele tsa ho etsa mohlala le netefatso, bahlahisi ba ka fana ka litharollo tse etselitsoeng lisebelisoa tsa motlakase tsa moloko o latelang.

Hlahloba ditharollo tsa rona tsa transformer tse tswetseng pele ka botekgeniki—tse entsweng bakeng sa tshebetso le ho tshwarella. Ikopanye le rona ho etsa hore 96kVA MFT e be ya hao.