Zosefera zamagetsi zogwira ntchito zimagwiritsidwa ntchito m'makampani a petrochemical

Chifukwa cha zofunikira pakupanga, pali kuchuluka kwa mapampu mumakampani a petrochemical, ndipo katundu wambiri wamapampu amakhala ndi zosinthira pafupipafupi.Kuchuluka kwa ntchito zosinthira pafupipafupi kumakulitsa kwambiri zomwe zili mumayendedwe ogawa mumakampani a petrochemical.Pakadali pano, maulalo ambiri osinthira ma frequency converter ndikugwiritsa ntchito 6 pulse rectifier kuti asinthe AC kukhala DC.Choncho, ma harmonics opangidwa makamaka ndi 5, 7 ndi 11.

1. Kuwunika kwa katundu wamakampani amafuta

Kupitilira 85% ya mphamvu zamagetsi mu gululi yamakampani amafuta ndizowonjezera, monga mapampu osiyanasiyana amafuta, ma mota ndi zina zotero.M'zaka zaposachedwa, pomwe malo opangira mafuta akhazikitsa zofunika kwambiri pakusunga mphamvu, mayunitsi ambiri atenga zida zambiri zopulumutsira mphamvu.Chifukwa cha mphamvu zake zodziwikiratu zopulumutsa mphamvu, kusintha kosavuta, kukonza kosavuta ndi maukonde, chosinthira pafupipafupi chagwiritsidwa ntchito kwambiri pakugwiritsa ntchito mafuta.Pampu, mpope, mpope wotsikira pansi ndi kupopera kosakaniza pamalo opangira mafuta amayendetsedwa ndi chosinthira pafupipafupi, koma chosinthira pafupipafupi chimatulutsa ma harmonics ambiri kuti asokoneze katundu ndi zida zake zoyandikana, komanso ma harmonics nawonso. zimakhudza gulu lamagetsi a anthu kudzera mu chingwe chamagetsi cholowetsamo.

2. Kuwonongeka kwa ma harmonics ku gridi yamagetsi yamagetsi

1) Ma Harmonics amakhudza magwiridwe antchito okhazikika a gridi yamagetsi yamafuta ndikuchepetsa mphamvu yamagetsi agululi yamagetsi.

2) Ma Harmonics amawonjezera kutayika kwa mphamvu ya capacitor, kufupikitsa moyo wautumiki wa capacitor yamagetsi, ndipo pakakhala ma harmonics akulu, zipangitsanso kuti capacitor ikhale, kusweka kapena kuphulika.Ma Harmonics amathanso kuonjezera kutaya mphamvu kwa thiransifoma.

3) Ma Harmonics amapangitsa kuti kutayika kwamphamvu kwa injini yozungulira kuchuluke, kupangitsa kutentha kwambiri, kutulutsa kugwedezeka kwamakina, phokoso ndi kuwonjezereka kwamphamvu, zomwe zidzafupikitsa moyo wa zida, komanso kuwonongeka kwakanthawi;Ma Harmonics angayambitse kusachita bwino kwa chitetezo kapena kukana;Ma harmonics mu dongosolo lamagetsi amaphatikizidwa ndi dongosolo lofooka lamakono ndi electromagnetic induction, electrostatic induction ndi conduction, zomwe zingayambitsenso kusokoneza dongosolo lofooka lamakono.

Pogwiritsa ntchito ma frequency converter pama jakisoni amadzi am'munda wamafuta, sikuti amangothetsa zovuta zamitundu yosiyanasiyana ya jekeseni wamadzi, kugwiritsa ntchito mphamvu zambiri komanso kutsika pang'ono, komanso kumabweretsa kuwonjezeka kwazomwe zili mumtundu wamagetsi.Kukhalapo kwa ma harmonics ambiri kumawopseza kudalirika ndi chitetezo chamagetsi.Pofuna kuthetsa kuvulaza komwe kumabwera chifukwa cha ma harmonics, kugwiritsa ntchito kupanga, kupititsa patsogolo mphamvu yamagetsi a gridi yamagetsi, kuonetsetsa kuti kupanga bwino.

Noker Electric (/ za-ife/) fyuluta yogwira ntchito ya harmonicndi ukadaulo wamakono wa 3-level IGBT, ndi njira yabwino yowongolera zinthu.Thandizo lililonse, tilankhule nafe momasuka.Tidzakupatsani yankho mwadongosolo.