Thelekisa neseti yeMG ene-IGBT, kutheni iseti yeMG ifanelekile ngakumbi kwi-power transformer tester? Ngoobani ababoneleli abaphambili eTshayina nakwihlabathi liphela?

Umbuzo wakho ngokwenene yingxoxo yobugcisa yakudala kwimigangatho yovavanyo lwe-transformer:

Iseti yeMG (iMotor-Generator) xa ithelekiswa ne-IGBT / i-solid-state frequency converter (SFC).

 

Enyanisweni, iifektri ezininzi ezinkulu ze-power-transformer zisakhetha iiseti ze-MG, ingakumbi kuvavanyo lwe-voltage olubangelwayo kunye nokulinganisa ilahleko. Apha ngezantsi kukho uthelekiso olusebenzayo olusetyenziswa kwizityalo ze-transformer.

1. I-MG Set vs IGBT Power Supply yoVavanyo lweTransformer

 

Into	Iseti yeMG (iMoto-Jeneretha)	I-IGBT / I-Static Frequency Converter
Itekhnoloji	Umatshini ojikelezayo (ijenereyitha yeemoto eziqhubayo)	I-inverter ye-elektroniki yamandla
Umthamo wamandla	Inkulu kakhulu (i-MVA ezininzi zilula)	Inkulu kodwa ibiza kakhulu xa inamandla aphezulu kakhulu
Ifomu yamaza	I-sine wave ecocekileyo kakhulu	Isenokuba ne-switching harmonics
Ubuchule bokujikeleza okufutshane	Okomele kakhulu	Inqunyelwe zii-elektroniki
Ukwazi ukulayisha ngaphezulu	Igqwesile	Inomda
Ukuthembeka	Yomelele kakhulu	Ibuthathaka kwiintsilelo ze-semiconductor
Ulondolozo	Ukugcinwa koomatshini	Ukugcinwa kancinci koomatshini
Ubungakanani	Enkulu	Incinci

 

Iiseti zeMG zibonelela ngombane ozimeleyo kunye ne-voltage/current ezinzileyo kwiinkqubo zovavanyo.

2. Kutheni ii-MG Sets zihlala zikhethwa xa kuvavanywa iPower Transformer

 

2.1️⃣ Amandla okusebenza ngokukhawuleza kunye nokugqithisa kakhulu

 

Ngexesha lovavanyo olufana nolu:

• Uvavanyo lwe-impedance ye-short-circuit
• Uvavanyo lokulahlekelwa ngumthwalo
• Uvavanyo lokunyuka kobushushu

 

i-transformer inokutsala umbane omkhulu kakhulu we-transient current.

 

Iiseti zeMG ziyakunyamezela oku kakuhle ngenxa yokujikeleza kwazo, ngelixa iinkqubo zamandla-elektroniki zinokukhubeka okanye zinciphise umbane.

 

 

2.2️⃣ Umthamo wamandla aphezulu (inqanaba le-MVA)

 

Iifektri ezinkulu ze-transformer zinokufuna:

• Uvavanyo lwe-MVA oluyi-5–20
• Ngamanye amaxesha i-30 MVA okanye ngaphezulu

 

I-MG iseta isikali ngokulula ukuya kumthamo omkhulu.

Umzekelo, iinkqubo zeMG zisetyenziselwa ukuvavanya ii-transformers ze-MVA / 400 kV ezifikelela kwi-315 kwiifektri ezithile.

 

Izixhobo zombane ze-IGBT kweli nqanaba zibiza kakhulu kwaye ziyinkimbinkimbi.

 

 

2.3️⃣ I-sinusoidal waveform eqinileyo kakhulu

 

Ukulinganiswa kokulahleka kufuna i-waveform echanekileyo kakhulu:

• Uvavanyo lokulahleka okungundoqo
• Uvavanyo lokulahlekelwa ngumthwalo

 

Iiseti zeMG zivelisa i-sine wave yendalo evela kwi-synchronous generator.

 

Izixhobo ze-IGBT zenza i-PWM waveform kwaye zifuna izihluzi, ezisenokuzisa ii-harmonics ezichaphazela ukuchaneka komlinganiselo.

 

 

2.4️⃣ Ukwahlulwa kombane kwigridi

 

Iiseti zeMG zibonelela ngokwahlulwa koomatshini phakathi kwegridi kunye nento yovavanyo, nto leyo enceda:

• Nciphisa ukuphazamiseka kwegridi
• Phucula uzinzo lokulinganisa
• Khusela igridi ngexesha lovavanyo lwamandla aphezulu.

 

 

2.5️⃣ Isiphumo esiphezulu sovavanyo oluqhutywayo

 

Uvavanyo lwe-voltage olubangelwa yi-power transformer ludla ngokufuna:

• 100 Hz
• 150 Hz
• 200 Hz

 

Iiseti zeMG zivelisa ezi zinto ngokulula ngokutshintsha isantya sejenereyitha okanye uqwalaselo lweepali.

3. Kutheni Amanye Amafektri Efudukela Kwiinkqubo ze-IGBT

 

Nangona kukho iingenelo zeMG, iinkqubo zanamhlanje ze-IGBT / Static Frequency Converter (SFC) ziya zithandwa ngenxa yokuba:

• indawo encinci
• ulawulo oluzenzekelayo
• ukuqalisa ngokukhawuleza
• ukugcinwa kancinci koomatshini.

 

Zikwavumela umgangatho wovavanyo oluzenzekelayo ngokupheleleyo kunye nenkqubo eguquguqukayo ye-voltage/frequency.

 

Iilebhu zovavanyo ezininzi ezintsha zidibanisa zombini ezi teknoloji.

4. Ababoneleli abaPhambili beHlabathi (iiNkqubo zamandla oVavanyo lweTransformer)

 

Ababoneleli abaphambili kwihlabathi liphela

• I-Siemens Energy - iinkqubo zovavanyo ezinkulu ze-transformer
• Iinkqubo ze-OMICRON Electronics – zokuxilonga kunye neenkqubo zovavanyo ze-transformer
• Inkampani yoBunjineli beDoble - izisombululo zovavanyo lwe-transformer eziphambili
• Iqela leMegger - umenzi wezixhobo zokuvavanya amandla ombane
• I-HIVOLT Prüftechnik Dresden - izixhobo zelebhu eziphezulu zombane kunye novavanyo

 

Ezi nkampani zibonelela ikakhulu ngeelabhoratri zovavanyo lwe-transformer ezipheleleyo.

5. Ababoneleli abaPhambili baseTshayina (Iseti yeMG / Iinkqubo zoVavanyo)

 

I-China inabathengisi abaninzi beefloor zovavanyo lwe-transformer efektri.

 

Izixhobo zokudibanisa izixhobo

• I-Trihope yaseShanghai
• Ukuzenzekelayo kwamandla oMbane eWuhan Huatian
• Amandla kwakhona

Ezi nkampani zihlala zibonelela:

• Iiseti zeMG
• iinkqubo zovavanyo ezikhuthazwayo
• iinkqubo zokulinganisa ilahleko
• iilabhoratri zovavanyo lwe-transformer ezipheleleyo.
  
  
  6. Inyani yoShishino

   

  Kwiifektri ezininzi ezinkulu ze-power transformer (>220 kV):

   

  Uqwalaselo oluqhelekileyo:

  Uvavanyo lwe-voltage olubangelwa yi-MG SET

  Uvavanyo lokulahlekelwa ngumthwalo lwe-MG SET---

  IGBT/SFC --- Ubonelelo oluguquguqukayo oluncedisayo

   

  Ngoko ke iiseti zeMG zisengumqolo wemigangatho yovavanyo enamandla aphezulu, ngelixa iinkqubo ze-IGBT zibonelela ngokuguquguquka