Ki te whakataurite ki te huinga MG me te IGBT, he aha te huinga MG i pai ake ai mō te whakamātautau whakawhiti hiko? Ko wai ngā kaiwhakarato matua i Haina me te ao whānui?

He kōrero hangarau tawhito tō pātai i roto i ngā papa whakamātautau whakawhiti hiko:

Huinga MG (Mīhini-Whakaputa) vs IGBT / kaitahuri auau āhua-totoka (SFC).

 

I roto i te mahi, he maha tonu ngā wheketere nui o ngā whakawhiti hiko e pai ake ana ki ngā huinga MG, inā koa mō te whakamātautau ngaohiko whakaoho me te ine i te ngaronga. Kei raro nei he whakatairite mahi e whakamahia ana i roto i ngā tipu whakawhiti hiko.

1. Te Huinga MG me te Pūnaha Hiko IGBT mō te Whakamātautau i te Whakawhitiwhiti

 

Taonga	Huinga MG (Mōta-Hiko)	IGBT / Pūtahuri Auau Pūmau
Hangarau	Mīhini hurihuri (pūkaha whakaputa hiko)	Kaitahuri hikohiko mana
Te kaha o te mana	Tino nui (he ngāwari te maha o ngā MVA)	He nui engari he utu nui, he tino kaha te mana
Āhua Ngaru	Ngaru sine tino parakore	Tērā pea kei roto ngā hāmoni whakawhiti
Te āheinga porowhita-poto	Tino kaha	He mea herea e ngā hikohiko
Te kaha ki te utaina nui	Tino pai	He iti noa iho
Te pono	Tino pakari	He tairongo ki ngā rahunga haurua-ira
Te tiaki	Te tiaki miihini	Te iti ake o te tiaki miihini
Rahi	Nui	Kiato

 

Ka whakaratohia e ngā huinga MG te pūtake hiko motuhake me te ngaohiko/au pumau mō ngā pūnaha whakamātautau.

2. He aha i pai ai ngā huinga MG mō te whakamātautau i ngā taputapu whakawhiti hiko

 

2.1️⃣ Kaha te āheinga ki te aukati i te ara iahiko poto me te taumaha rawa

 

I te wā o ngā whakamātautau pēnei i:

• Whakamātautau aukati-poto
• Whakamātautau ngaronga kawenga
• Whakamātautau pikinga pāmahana

 

tērā pea ka nui rawa te ia whakawhiti ka kumea e te whakawhiti hiko.

 

Ka taea e ngā huinga MG te aro atu ki tēnei āhuatanga nā te mea he ngoikore te hurihuri, engari ka taea e ngā pūnaha hiko-mana te whakaweto, te whakawhāiti rānei i te iahiko.

 

 

2.2️⃣ Te kaha o te mana (taumata MVA)

 

Tērā pea ka hiahiatia e ngā wheketere whakawhiti nui:

• Pūtāhui whakamātautau 5–20 MVA
• I ētahi wā 30 MVA, neke atu rānei

 

Ka taea e MG te whakarite i te tauine ki te kaha nui.

Hei tauira, ka whakamahia ngā pūnaha MG hei whakamātautau i ngā whakawhiti hiko tae atu ki te 315 MVA / 400 kV i roto i ētahi wheketere.

 

Ka tino utu nui, ka tino uaua hoki ngā pūtake hiko IGBT i tēnei taumata.

 

 

2.3️⃣ He ngaru sinusoidal tino pumau

 

Ko te ine i te ngaromanga me tino tika te āhua o te ngaru:

• Whakamātautau mate matua
• Whakamātautau ngaronga kawenga

 

Ka whakaputahia e ngā huinga MG he ngaru sine maori mai i tētahi whakaputanga tukutahi.

 

Ka whakaputahia e ngā taputapu IGBT te ngaru PWM, ā, me hiahia he tātari, engari tera pea ka puta mai he haurau e pā ana ki te tika o te ine.

 

 

2.4️⃣ Te wehewehe hiko mai i te whatunga hiko

 

Mā ngā huinga MG ka whakaratohia he wehenga ā-mīhini i waenga i te whatunga me te mea whakamātautau, ā, ka āwhina i ēnei:

• Whakaitihia ngā raruraru whatunga
• Whakapai ake i te pumau o te ine
• Tiakina te whatunga i ngā wā whakamātautau mana nui.

 

 

2.5️⃣ Putanga auau-teitei mō te whakamātautau whakaoho

 

Ko te whakamātautau ngaohiko i puta mai i te whakawhiti hiko e hiahiatia ana:

• 100 Hz
• 150 Hz
• 200 Hz

 

Mā te whakarerekē i te tere o te whakaputa hiko, te whirihoranga rānei o te pou ka taea te whakaputa i ēnei e ngā huinga MG.

3. He aha ētahi wheketere e neke ana ki ngā pūnaha IGBT

 

Ahakoa ngā painga o MG, kei te rongonui haere ngā pūnaha IGBT / Static Frequency Converter (SFC) hou nā te mea:

• tapuwae iti ake
• whakahaere aunoa
• tīmatanga tere
• iti iho te tiaki miihini.

 

Ka taea hoki e rātou te whakamahi i ngā papa whakamātautau aunoa katoa me te hōtaka ngaohiko/auau ngāwari.

 

He maha ngā taiwhanga whakamātautau hou e whakakotahi ana i ngā hangarau e rua.

4. Ngā Kaiwhakarato Matua o te Ao (Ngā Pūnaha Hiko Whakamātautau Whakawhiti)

 

Ngā kaiwhakarato matua o te ao

• Siemens Energy – ngā pūnaha whakamātautau whakawhiti nui
• OMICRON Electronics – ngā pūnaha tātaritanga me te whakamātautau o ngā whakawhiti hiko
• Kamupene Hangarau Doble – ngā otinga whakamātautau whakawhiti hiko matatau
• Rōpū Megger – kaihanga taputapu whakamātautau hiko
• HIGHVOLT Prüftechnik Dresden – ngaohiko teitei me nga taputapu taiwhanga whakamatautau

 

Ko te nuinga o ēnei kamupene e whakarato ana i ngā taiwhanga whakamātautau katoa mō ngā whakawhiti hiko.

5. Ngā Kaiwhakarato Haina Matua (Huinga MG / Pūnaha Whakamātautau)

 

He maha ngā kaiwhakarato o Haina mō ngā papa whakamātautau o te wheketere whakawhiti.

 

Ngā kaiwhakauru taputapu

• Shanghai Trihope
• Te Aunoatanga Hiko o Wuhan Huatian
• Mana anō

Ko te tikanga, ka whakaratohia e ēnei kamupene:

• Ngā huinga MG
• ngā pūnaha whakamātautau whakaohooho
• ngā pūnaha ine mate
• ngā taiwhanga whakamātautau whakawhiti hiko katoa.
  
  
  6. Te Ao Tūturu o te Ahumahi

   

  I roto i te nuinga o ngā wheketere whakawhiti hiko nui (>220 kV):

   

  Whirihoranga noa:

  MG SET --- whakamātautau ngaohiko i whakaaweawetia

  MG SET --- whakamātautau mate kawenga

  IGBT/SFC --- Tukunga taurangi āwhina

   

  Nō reira, ko ngā huinga MG tonu te poutokomanawa o ngā papa whakamātautau mana-teitei, engari ko ngā pūnaha IGBT e whakarato ana i te ngāwari.