Hajoale, bokhoni bo nepahetseng ka ho fetesisa ba ho laola 'marakeng ke letoto la APF-voltage active filter e ntlafalitsoeng le e entsoeng ke Hongyan Electric.Ena ke karolo ea motlakase ea motlakase e ipapisitseng le tlhahlobo ea hajoale le theknoloji ea selelekela ea hajoale.Karolo ea hona joale ea harmonic e lokelang ho lefshoa e fumanoa ho ea ka mokhoa oa ho shebella oa wave wave.Ka ho laola IGBT trigger, thekenoloji ea phetoho ea pulse wide modulation e sebelisetsoa ho hlahisa li-harmonics, likarolo tse sebetsang hantle le maqhubu ka lehlakoreng le fapaneng le tsamaiso ea kabo ea matla ho finyella phello ea ho felisa li-harmonics.Sesefa se sebetsang hantle se ka feta hoo e ka bang 95%, ka hona sa ntlafatsa ntlha ea polokeho le ts'epahalo ea sistimi ea phepelo ea motlakase, le ho fihlela sepheo sa ts'ireletso ea tikoloho, ho boloka matla le ntlafatso ea ts'ebetso.
Ho nahanoa ka melao ea k'hamphani ea utility ke mokhanni oa bohlokoa oa hore lik'hamphani li kenye tšebetsong puso ea harmonic.Khampani ea phepelo ea motlakase e tlamehile ho hlahisa matla a motlakase a tšoanelehang bakeng sa bareki ba boenjiniere ba motlakase.Ka hona, k'hamphani ea phepelo ea motlakase e fana ka litlhokahalo tsa taolo ea pulse hajoale bakeng sa basebelisi ba ka silafatsang marang-rang.Ha lik'hamphani tse ntseng li eketseha li hloka boleng bo phahameng ba matla, lik'hamphani tsa motlakase li tla beha litlhoko tse thata ho bareki ba boenjiniere ba motlakase.
Ka kakaretso, taolo e sa fellang ea harmonic le taolo e bohareng ea harmonic e ka kopanngoa ho hlahisa tharollo e theko e tlaase.Bakeng sa meroalo ea mohloli oa harmonic e nang le matla a phahameng (joalo ka libono tsa induction frequency, li-starter tse bonolo, joalo-joalo).), ho sebelisa li-filthara tsa harmonic tsa ultra-high voltage bakeng sa taolo ea harmonic ea sebakeng seo ho fokotsa motlakase oa harmonic o kentsoeng ka har'a marang-rang a matla.Bakeng sa meroalo ea tsamaiso ea discrete e nang le matla a manyane le matla a batlang a ajoa, taolo e kopaneng e lokela ho etsoa ka bese ea sistimi.U ka sebelisa sefe e sebetsang ea Hongyan kapa sefe e sa sebetseng.
Indasteri ea ho hloekisoa le ea lik'hemik'hale ea litšepe tse se nang ferrous e tlameha ho sebelisa mokhoa oa electrolysis, kahoo ho bohlokoa ho lokisa matla a phahameng.Batho ba nka tlhahiso ea haedrojene ka electrolysis ea metsi e le mohlala.Batho ba tlameha ho hlophisa sete ea rectifier transformer le thyristor rectifier cabinet.Mokhoa oa ballast ke mofuta oa naleli e fetotsoeng habeli ea mekhahlelo e tšeletseng.Matla a feto-fetohang a hlahisoang a sebelisoa bakeng sa sele ea electrolytic: 10KV/50HZ-rectifier transformer-phase voltage 172V*1.732 phase voltage 2160A-rectifier cabinet-AC 7200A/179V-electrolytic cell.Sefetoleli se feto-fetohang: reactor ea mekhahlelo e tšeletseng ea reverse double reverse naleli kapa mekhahlelo e meraro ea mekhahlelo ea bohlano ea mekhahlelo e tšeletseng e khutlelang morao.Molumo oa mohala oa ho kenya: 1576 kVA valve ea lehlakoreng la 2230 kVA mofuta oa bophahamo ba 1902 kVA thyristor rectifier cabinet K671-7200 A / 1179 volts (sete tse 'nè ka kakaretso).Thepa ea ho lokisa e tla baka maqhubu a mangata, a tla beha boleng ba matla a marang-rang kotsing haholo.
Ka sesebelisoa sa ho lokisa 6-pulse rectifier se nang le matla a phahameng a mekhahlelo e meraro, li-harmonics tse phahameng tse hlahisoang ke akhaonto ea rectifier bakeng sa 25-33% ea kakaretso ea li-harmonics tse phahameng, tse tla baka tšenyo e kholo ho grid ea matla. 'me litšobotsi tse phahameng tsa li-harmonics tse hlahisitsoeng ke linako tse 6N±1, ke hore, linako tse hlahang ka lehlakoreng la valve ke 5th, 7th, 11th, 13th, 17th, 19th, 23rd, 25th, joalo-joalo, le ea 5th le 7th holimo. likarolo tsa harmonic li hlahisoa ke ntlha ea PCC ka lehlakoreng le leholo la marang-rang Litšobotsi tse phahameng tsa li-harmonics li ka lehlakoreng le le leng la valve, har'a tsona taelo ea 5 e kholo, 'me taelo ea 7 e fokotseha ka ho latellana.Ts'ebetso e ts'oanang ea sehlopha sa "rectifier transformer" se nang le li-fase-shifting windings e ka theha maqhubu a 12, 'me linako tse ikhethang tsa lehlakore la marang-rang ke makhetlo a 11, makhetlo a 13, makhetlo a 23, makhetlo a 25, joalo-joalo,' me linako tse 11 le linako tse 13 li teng. kholo ka ho fetisisa.
Haeba ho se na sesebelisoa sa ho sefa se kentsoeng lehlakoreng la grid kapa lehlakoreng la valve, palo eohle ea pulse e kentsoeng ka har'a marang-rang e tla feta tekanyo ea indasteri ea k'hamphani ea rona, 'me tšobotsi ea hona joale ea harmonic e kentsoeng ka har'a transformer e ka sehloohong e tla feta boleng ba taolo. maemo a indasteri ea k'hamphani ea rona.Li-harmonics tse phahameng li tla baka likhoele tsa kabo, ho futhumala ha transformer, lisebelisoa tse sa sebetseng tsa matšeliso li ke ke tsa tloha fekthering, ho senyeha ha boleng ba puisano, ho se sebetse hantle ha moea, ho ts'oaroa ha jenereithara le maemo a mang a mabe.
Ka kakaretso, marang-rang a maholo a tsamaiso, li-harmonics tse phahameng li ka tlosoa ka ho sebelisa lisebelisoa tsa passive filter (fc), 'me lipakane tsa tsamaiso li ka finyelloa.Tabeng ea tsamaiso e nyenyane ea marang-rang ea matla, sepheo sa ho sebetsana le li-harmonics tse phahameng li phahame.Ntle le ho kenya sesebelisoa sa sesefa se nang le bokhoni bo boholo, mochini o sebetsang ka matla o monyane (apf) o ka boela oa sebelisoa ho fihlela mehato e hlokahalang ea boleng ba matla.Bakeng sa lits'ebetso tsa ho kenya li-rectifier tse nang le mekhoa e fapaneng ea khokahano, lits'ebetso tsa rona tsa puseletso ea filthara li na le meralo e fapaneng ea sepheo.Ka mor'a ho hlahloba setšeng, ba ka "itloaetsa" bakeng sa bareki 'me ba khetha moralo oa phekolo o lumellanang le boemo ba sebele setšeng.
Nako ea poso: Apr-13-2023