Shaandhada tamarta firfircoon ayaa loo isticmaalaa warshadaha petrochemical

Baahida wax soo saarka awgeed, waxaa jira tiro badan oo ah rarka bamka ee warshadaha batroolka, iyo culeysyo badan oo bamka ah ayaa lagu qalabeeyay beddelayaasha soo noqnoqda.Codsiyada tirada badan ee beddelayaasha soo noqnoqda ayaa si weyn u kordhiya nuxurka is-waafajinta ee nidaamka qaybinta ee warshadaha petrochemical.Waqtigan xaadirka ah, inta badan xiriiriyeyaasha toosiyaha ee beddelayaasha soo noqnoqda ayaa ah codsiga 6 hagaajinta garaaca wadnaha si AC loogu beddelo DC.Sidaa darteed, harmonics-yada la soo saaray waxay u badan yihiin harmonics 5th, 7th iyo 11th.

1. Falanqaynta sifooyinka culeyska ee warshadaha saliidda

In ka badan 85% culayska korantada ee shabaqyada warshadaha saliida ayaa ah culays wax soo saar leh, sida bambooyinka saliida ee kala duwan, matoorada iyo wixii la mid ah.Sanadihii la soo dhaafay, maadaama goobta saliidda ay soo bandhigtay shuruudo sare oo loogu talagalay ilaalinta tamarta, unugyo badan ayaa qaatay tiro badan oo ah aaladaha badbaadinta tamarta.Sababtoo ah saamaynta cad ee tamarta-badbaadinta, hagaajin sahlan, dayactir fudud iyo shabakad, beddelaha soo noqnoqda ayaa si weyn loogu isticmaalay ka faa'iidaysiga saliidda.Bamka, bamka, bamka hoos-u-dhaca iyo bamka isku-dhafka ah ee saldhigga wax-soo-saarka saliidda waxaa kaxeeya beddelaha soo noqnoqda, laakiin beddelaha soo noqnoqda wuxuu soo saari doonaa tiro badan oo isku-dhafan si uu u farageliyo culeyska iyo qalabka ku xiga, iyo isku-dhafka ayaa sidoo kale doona saameyn ku yeelato shabkada korantada dadweynaha iyada oo loo marayo khadka korantada.

2. Waxyeellada harmonics-ka ee xadhkaha korantada ee goobta saliidda

1) Harmonics-ku waxay saameeyaan habsami u socodka shaqada xadhkaha korantada ee goobaha saliidda waxayna hoos u dhigtaa tayada korantada ee shabkada tamarta.

2) Harmonics-ku waxa ay kordhisaa awoodda lumitaanka capacitor-ka, waxa ay soo gaabinaysaa cimriga tamarta korantada, haddii ay dhacdo harmonics halis ah, waxa ay sidoo kale ka dhigaysaa capacitor-ku in uu buro, burburo ama qaraxdo.Harmonics sidoo kale waxay kordhin kartaa luminta korontada ee transformerka.

3) Harmonics waxay sababi doontaa luminta awoodda matoorka wareegta si ay u korodho, waxay keenaysaa kulayl badan, waxay soo saartaa gariir farsamo, buuq iyo xad-dhaaf ah, taas oo soo gaabin doonta nolosha qalabka, iyo xitaa waxyeello u geysta xaaladaha halista ah;Harmonics waxay keeni doontaa khalad ka-hortagga gudbinta ama tallaabo diidmo;Harmonics-ka ku jira nidaamka korantada waxaa lagu daraa nidaamka daciifka ah ee hadda jira by induction electromagnetic, electrostatic induction iyo conduction, taas oo sidoo kale keeni doonta faragelinta nidaamka daciifka ah hadda.

Isticmaalka ballaaran ee beddelka soo noqnoqda ee nidaamka duritaanka biyaha ee saliidda, ma aha oo kaliya xallinta dhibaatooyinka kala duwanaanshaha cadaadiska duritaanka biyaha ee dhaqameed, isticmaalka tamarta sare iyo waxtarka hooseeya, laakiin sidoo kale waxay keentaa kororka waxyaabaha harmonic ee shabakada korantada.Jiritaanka tiro badan oo harmonics ah ayaa khatar gelinaysa isku halaynta iyo amniga nidaamka korontada.Si loo baabi'iyo waxyeelada ay keento harmonics, isticmaalka wax soo saarka, hagaajinta tayada tamarta korontada, si loo hubiyo wax soo saarka caadiga ah.

Noker Electric (/ku saabsan-annaga/) filter harmonic firfircoonoo leh tignoolajiyada casriga ah ee 3-heer IGBT, waa badeecada kontoroolka iswaafajinta ku habboon.Wixii taageero ah, nala soo xiriir si xor ah.Waxaan ku siin doonaa xal nidaamsan.