Kodi Ma Voltage Apamwamba, Apakatikati, Otsika, ndi Aakulu Kwambiri Amagawidwa Bwanji mu Power Systems?

Kugawa mphamvu m'magulu amagetsi ndikofunikira kwambiri kuti zitsimikizire kuti mphamvu zimatumizidwa bwino, kugawidwa, komanso chitetezo. Magiredi amagetsi amatsimikizira momwe magetsi amayendera kudzera mu ma gridi, kulinganizidwa kuti athe kugwiritsidwa ntchito mwaukadaulo komanso mwachuma, komanso kusinthidwa kuti zigwiritsidwe ntchito mosiyanasiyana. Nkhaniyi ikufotokoza zofunikira ndi miyezo yoyendetsera magulu awa, poganizira kwambiri ​mphamvu yamagetsi yapamwamba (HV),magetsi apakati (MV),mphamvu yamagetsi yotsika (LV)ndiMphamvu yamagetsi yapamwamba kwambiri (UHV).

1. Zofunikira pa Kugawa Voltage​

Ma voltage milingo amatanthauzidwa makamaka ndimiyezo yamagetsi(monga IEC, IEEE, malamulo a dziko) ndizofunikira pa ntchito, kuphatikizapo:

• ​Mtunda wotumizira: Ma voltage ambiri amachepetsa kutayika kwa mphamvu pa mtunda wautali.
• ​Mphamvu yamagetsi: Ma voltage apamwamba amalola kusamutsa mphamvu kwakukulu.
• ​Kapangidwe ka zida: Kuteteza kutentha, kuziziritsa, ndi kulimba kwa zinthu zimadalira mphamvu ya magetsi.
• ​Kapangidwe ka gridiMagawo a voltage amagwirizana ndi gridi (kupanga → kutumiza → kugawa).

​2. Matanthauzo a Mlingo wa Voltage​

​Voltage Yotsika (LV)​​

• ​Malo ozungulira: ≤1,000 V (AC) kapena ≤1,500 V (DC).
• ​Mapulogalamu:

• Mphamvu zamagetsi zogwiritsidwa ntchito m'nyumba ndi m'mabizinesi (monga, 220V/380V ku China, 120V/240V ku North America).
• Zipangizo zazing'ono, magetsi, ndi makina amafakitale.
  • ​Zinthu Zofunika Kwambiri:
• Amalumikiza mwachindunji ogwiritsa ntchito.
• Imafuna kutenthetsa pang'ono chifukwa cha kupsinjika kochepa.

​Voltage Yapakati (MV)​​

• ​Malo ozungulira: 1 kV mpaka 35 kV (zimasiyana malinga ndi dera).

• China: 10 kV–35 kV.
• Europe: 11 kV–20 kV.
  • ​Mapulogalamu:
• Kugawa kwa mizinda ndi mafakitale.
• Mizere yolumikizira ma substation ku ma network a LV.
  • ​Zinthu Zofunika Kwambiri:
• Kulinganiza bwino komanso chitetezo cha kutumiza mauthenga patali.
• Imagwiritsa ntchito zingwe kapena mizere yozungulira yokhala ndi insulation yocheperako.

​Mphamvu Yothamanga Kwambiri (HV)​

• ​Malo ozunguliraMphamvu yamagetsi: 35 kV mpaka 220 kV.
• ​Mapulogalamu:

• Kutumiza kwa madera pakati pa mizinda.
• Kutumiza magetsi ochuluka kuchokera ku malo opangira magetsi kupita ku malo osinthira magetsi.
  • ​Zinthu Zofunika Kwambiri:
• Imafuna makina olimba oteteza kutentha ndi kuziziritsa.
• Imathandizira kuyenda kwa mphamvu pamtunda wa makilomita 100–500.

​Mphamvu Yowonjezera Mphamvu (UHV)​

• ​NDI UHV: ≥1,000 kV.
• ​DC UHV: ≥±800 kV.
• ​Mapulogalamu:

• Makonde a mphamvu odutsa dziko lonse (monga, mzere wa AC wa 1,100 kV waku China).
• Ma transmission a mtunda wautali komanso amphamvu kwambiri (monga, 2,000–3,000 km).
  • ​Zinthu Zofunika Kwambiri:
• Amachepetsa kutayika kwa ma transmission kufika pa
• Zimathandiza kuphatikiza mphamvu zongowonjezwdwanso (monga minda ya dzuwa m'zipululu).

​3. Zoganizira zaukadaulo ndi ntchito​

​Malangizo Osankhira Voltage​

• ​Ma transformer owonjezeraPa mafakitale amagetsi, magetsi amawonjezera mphamvu yamagetsi ku HV/UHV kuti iperekedwe.
• ​Ma transformer otsikira pansiPa malo osinthira magetsi, magetsi amachepetsa magetsi kukhala MV/LV kwa ogwiritsa ntchito.
• ​Kulimba kwa gridi: Ma voltage ambiri amafuna njira zodzitetezera zapamwamba (monga ma circuit breakers, ma surge arresters).

​Zotsatira Zachuma ndi Zachilengedwe​

• ​Kugwiritsa ntchito bwino ndalama: Mizere ya UHV imakhala ndi mphamvu yoposa 4–5 × kuposa mizere ya 500 kV, zomwe zimachepetsa ndalama zogwirira ntchito pa unit iliyonse.
• ​Kugwiritsa ntchito malo: Makorido a UHV amakhala ndi malo ochepa poyerekeza ndi mizere ingapo yofanana yamagetsi otsika.
• ​Kuchepetsa mpweya: Kutumiza bwino kwa magetsi kumathandiza kugwiritsa ntchito mphamvu zongowonjezwdwanso.

​4. Kusiyanasiyana kwa Miyezo ya Voltage Padziko Lonse​

Ngakhale miyezo ya IEC imapereka chimango, machitidwe adziko lonse amasiyana:

• ​China:

• UHV AC: 1,000 kV; DC: ± 800 kV (mwachitsanzo, mzere wa Xiangjiaba-Shanghai).
• MV: 10 kV–35 kV.
  • ​Europe:
• Mphamvu yamagetsi: 110 kV–220 kV; Mphamvu yamagetsi: 380 kV (AC) ndi ±500 kV (DC).
  • ​kumpoto kwa Amerika:
• Mphamvu yamagetsi: 69 kV–230 kV; Mphamvu yamagetsi: 500 kV (AC) ndi ±800 kV (DC).

​5. Zochitika Zamtsogolo​

• ​Ma gridi anzeru: Kuphatikiza kwa IoT kuti iwonetse mphamvu yamagetsi nthawi yeniyeni.
• ​Ma gridi ang'onoang'ono a DC: Kugwiritsa ntchito kwambiri kwa DC mu makina a MV/LV pophatikiza zinthu zongowonjezedwanso.
• ​Zipangizo zapamwamba: Ma superconductor otentha kwambiri kuti apereke mphamvu popanda kutaya mphamvu.

​Mapeto​

Kugawa magetsi kumatsimikizira kuti mphamvu zimayenda bwino kuchokera ku mibadwo kupita ku ina. Ngakhale kuti magetsi otsika ndi apakatikati amaika patsogolo kupezeka kwa magetsi, magetsi okwera komanso okwera kwambiri amathandiza kuti magetsi aziyenda bwino komanso kugwira ntchito bwino. Pamene magetsi akusintha kuti azitha kugawa magetsi m'malo osiyanasiyana komanso kuti zinthu ziyende bwino, miyezo ya magetsi idzapitirizabe kusintha, ndikugwirizanitsa mphamvu zaukadaulo ndi kusamalira zachilengedwe.