Lintlha tsa motheo tsa basebelisi
Feme ea samente e hlahisa konkreite e fapaneng ea kaho.Khampani e na le mela e 3 ea tlhahiso.Phepelo ea motlakase e sebelisa li-inverter drive motors, 2000KVA2, 630KVA transformer, 'me transformer e' ngoe le e 'ngoe e na le khabinete ea matšeliso ea capacitor lehlakoreng la khatello e tlase.Setšoantšo sa sistimi ea phepelo ea motlakase ke se latelang:
Lintlha tse sebetsang hantle
Matla a hlahisoang ke mochini o qalang o bonolo oa 2000KVA transformer ke 1720KVA, matla a tloaelehileng ke PF=0.83, hajoale a sebetsang ke 2500A, matla ke 530KVA630KVA transformer, matla a tloaelehileng ke PF=0.87, ha hajoale a sebetsang ke 770A.Khabinete ea matšeliso a matla a sebetsang tlas'a sesebelisoa se seng le se seng hangata e na le maeto a motlakase, ho lutla ha oli ea capacitor, le tlhaiso-leseling ea phanele ea taolo e sa lumelleng ts'ebetso e sa tloaelehang.Ka hona, matla a pharaletseng a matla ke 0.84 feela, 'me kotlo ea matla a sebetsang e ka ba 20,000 ka January.'Me li-motors tsa line tsa tlhahiso le li-starter tse bonolo ka linako tse ling li ka sitisa tlhahiso.
Tlhahlobo ea Boemo ba Boemo ba Matla
Mojaro o ka sehloohong oa ballast ea converter ke 6 single-pulse ballasts.Thepa ea ballast e hlahisa palo e kholo ea pulse hona joale mosebetsing oa ho fetola AC ho DC.Ke mohloli o tloaelehileng oa ho otla ha motlakase 'me o kenngoa ka har'a marang-rang a matla.Maqhubu a Harmonic a baka matla a ho sebetsa a pulsed hona joale ho ts'ebetso ea ts'ebetso ea grid ea motlakase, e bakang tahlehelo ea matla a motlakase le a hona joale, a beha boleng le ts'ireletseho ea ts'ebetso ea phepelo ea motlakase, ho eketsa tahlehelo ea mohala le ho kheloha ha motlakase, le ho baka litlamorao tse mpe ho marang-rang a matla le limela tsa motlakase ka botsona Tšusumetso.
Sesebelisoa sa komporo ea taolo ea lenaneo (PLC) se na le maikutlo a ho sotha ha harmonic ea matla a sebetsang a phepelo ea motlakase.Ka kakaretso ho boletsoe hore tahlehelo ea motlakase oa motlakase oa hona joale (THD) e ka tlase ho 5%, 'me motlakase oa motlakase oa motho ka mong o sebetsa haeba sekhahla sa foreimi se le holimo haholo, phoso ea ts'ebetso ea tsamaiso e ka lebisa ho sitisoeng. tlhahiso kapa tshebetso, e bakang kotsi e kgolo ya molato wa tlhahiso.
Ha banka ea capacitor ea matla a sebetsang e kenngoa ts'ebetsong, hobane ts'ebetso ea hona joale ea pulse ea banka ea capacitor e nyane, palo e kholo ea pulse ea hona joale e kenngoa ka har'a sebopeho sa capacitor, 'me palo ea hona joale e eketseha ka potlako, e ama bophelo ba eona ba tšebeletso haholo. .Ka lehlakoreng le leng, ha pulse ea hona joale capacitor ea capacitor bank e lekana le e lekanang le pulse inductor ea hona joale ea software ea tsamaiso, ho eketseha ha harmonic hona joale (linako tse 2-10) ho tla etsa hore capacitor e chese le ho e senya, 'me pulse current e tla etsa hore maqhubu a matla a phallo a fetohe.Sinusoidal waveform e tsoile ka foreiming, e bakang leqhubu le bohale le bopehileng joaloka sakha, 'me e tla etsa hore ho lokolloe karoloana ea thepa e sireletsang, ka hona e potlakisa ho koaheloa ha lesela la insulating, le ho baka tšenyo ho capacitor.Ka hona, capacitor reactive power compensation cabinet e ke ke ea sebelisoa bakeng sa matšeliso a motlakase oa motlakase, 'me filthara e nang le ts'ebetso ea khatello ea hona joale ea pulse e lokela ho khethoa bakeng sa matšeliso a tlaase a motlakase a sebetsang.
Sefa moralo oa kalafo oa mats'eliso a matla a sebetsang
Lipheo tsa puso
Moralo oa lisebelisoa tsa matšeliso a filthara o kopana le litlhoko tsa khatello ea harmonic le taolo e sebetsang ea khatello ea matla.
Tlas'a mokhoa oa ho sebetsa oa tsamaiso ea 0.4KV, ka mor'a hore lisebelisoa tsa matšeliso a filthara li kenngoe tšebetsong, pulse current e hatelloa, 'me tekanyo ea khoeli le khoeli ea matla e ka ba 0.92.
Boemo bo phahameng ba harmonic resonance, resonance overvoltage, le overcurrent e bakoang ke ho hokahanya le potoloho ea lekala ea matšeliso ea filthara e ke ke ea etsahala.
Moqapi o Latela Melao
Boleng ba matla Li-harmonics tsa grid ea sechaba GB/T14519-1993
Boleng ba matla Voltage fluctuation le flicker GB12326-2000
Maemo a akaretsang a tekheniki a sesebelisoa sa puseletso ea matla a tlase-voltage reactive GB/T 15576-1995
Sesebelisoa sa mats'eliso a matla a tlase-voltage a sebetsang JB/T 7115-1993
Maemo a tekheniki a puseletso ea matla a sebetsang JB/T9663-1999 "Low-voltage reactive power automatic compensation controller" ho tsoa ho boleng bo phahameng ba moeli oa hona joale oa harmonic oa matla a tlase le lisebelisoa tsa elektroniki GB/T17625.7-1998
Mantsoe a theknoloji ea motlakase Li-capacitor tsa matla GB/T 2900.16-1996
Low voltage shunt capacitor GB/T 3983.1-1989
Reactor GB10229-88
Mohloli oa IEC 289-88
Taolo ea mats'eliso a matla a tlase a sebetsang ka matla a tlase a laela maemo a tekheniki DL/T597-1996
Kereiti ea tšireletso ea motlakase ea matla a tlase a GB5013.1-1997
Li-switchgear tse tlase-tlase le lisebelisoa tsa taolo GB7251.1-1997
mohopolo oa moralo
Ho ea ka maemo a ikhethileng a k'hamphani, matla a matla le khatello ea hona joale ea pulse li nkuoa molemong oa puseletso ea phepelo ea motlakase ea motlakase, 'me lisebelisoa tsa puseletso ea ho se sebetse ha filthara li behiloe lehlakoreng la 0.4kV tlase la transformer, le ka hatellang. pulse current le ho lefella ntlafatso ea ntlha ea matla.
Ho converter, ballast e hlahisa maqhubu a 6K-1 a tsoetseng pele ho latela phallo ea hajoale ea Fourier series, ebe e hlahisa maqhubu a 5 a tsoetseng pele a pulse, e 'ngoe le e' ngoe e ka bang 250Hz le 7350Hz.Ka hona, ha o rala mats'eliso a matla a sebetsang bakeng sa libono tsa induction tsa maqhubu a mahareng, hoa hlokahala ho rala maqhubu a pota-potileng 250Hz le 350Hz ho netefatsa hore lekala la puseletso ea filthara le khona ho hatella maqhubu a matla, ho lefella meroalo e sebetsang ka nako e ts'oanang, le ho ntlafatsa matla a matla.
kabelo ea moralo
Karolo ea matla e felletseng ea mohala oa motlakase o phehiloeng oa motlakase oa 2000kV AC o lefshoa ho tloha ho 0.8 ho ea ho 0.95.Thepa ea matšeliso ea sefe e tlameha ho ba le bophahamo ba 760kV, 'me e fetoloe ka bo eona ho ba li-volume tse 8,' me sete e le 'ngoe e sebelisane le matšeliso a matsoelintsoeke lehlakoreng le tlase la motlakase oa transformer.Mosebetsi oa phetoho ea sehlopha ke 45KVAR, e ka finyellang litlhoko tse fapaneng tsa matla a mohala oa tlhahiso.Karolo e pharalletseng ea matla a 630kV ea paired converter line e lefisitsoe, 'me moeli oa matšeliso ke ho tloha ho 0.8 ho ea ho 0.95.Thepa ea matšeliso ea sefe e tlameha ho ba le bophahamo ba 310kV, e fetoloang ka bo eona hore e be lihlopha tse 'ne tsa li-volume,' me sete e le 'ngoe e sebelisane le sehanyetsi se matsoelintsoeke lehlakoreng le tlase la motlakase bakeng sa matšeliso.Mosebetsi oa phetoho ea sehlopha ke 26KVAR, e ka finyellang litlhoko tse fapaneng tsa matla a mohala oa tlhahiso.Moralo oa moralo o tiisa ka botlalo hore matla a matla a feta 0.95.
Tlhahlobo ea phello ka mor'a ho kenya matšeliso a filthara
Ka Phupu 2010, sesebelisoa sa mats'eliso a matla a sefang a inverter se ile sa kengoa 'me sa qala ho sebetsa.Sesebelisoa se latela ka bohona phetoho ea mojaro oa inverter, se hatella li-harmonics tse phahameng ka nako ea nnete, se lefella matla a sebetsang, 'me se ntlafatsa matla a matla.lintlha tse latelang:
Ka mor'a hore sesebelisoa sa matšeliso a sefa se sebelisoe, motlakase oa phetoho ea motlakase ka mor'a hore sesebelisoa sa puseletso se sebelisoe ke hoo e ka bang 0.97 (karolo e phahamisitsoeng e ka ba 0.8 ha sesebelisoa sa matšeliso se tlosoa)
Ts'ebetso ea mojaro
Hona joale e sebelisoang ke li-transformer tsa 2000KVA e fokotsehile ho tloha ho 2500A ho ea ho 2120A, ho theoha ha 15%;ea hajoale e sebelisoang ke li-transformer tsa 630KVA e fokotsehile ho tloha ho 770A ho ea ho 620A, lerotholi la 19%.Ka mor'a matšeliso,thepowerlossreductionvalueisWT=△Pd*(S1/S2)2*τ*[1-(cosφ1/cosφ2)2]=50×{(0.85×4500)/4500}2×0.4≈34(kw h) Ho Foromo, Pd ke tahlehelo ea potoloho e khuts'oane ea transformer, e leng 50KW, mme poloko ea selemo le selemo ea litšenyehelo tsa motlakase ke 34*20*30*10*0.7=142,800 yuan (e ipapisitse le ho sebetsa lihora tse 20 ka letsatsi, matsatsi a 30 ka khoeli. , likhoeli tse 10 ka selemo, 0.7 yuan ka kWh).
boemo ba boemo ba matla
Lenane la kakaretso la boenjiniere ba matla la k'hamphani le eketsehile ho tloha ho 0.8 ho isa ho 0.95, 'me palo ea khoeli le khoeli ea boenjiniere ba matla e ntse e le 0.96-0.98, e nyoloha ho tloha ho li-yuan tse fetang 20,000 ka khoeli ho ea ho li-yuan tse fetang 6,000-10,000 ka khoeli.
Matšeliso a matla a tlase-voltage a sebetsang a filthara ea phetoho ea maqhubu a na le bokhoni ba ho hatella pulse hona joale le ho lefella moroalo o sebetsang, ho rarolla bothata ba kotlo ea matla a sebetsang, ho eketsa bokhoni ba motlakase, ho fokotsa tahlehelo ea matšeliso a matla a sebetsang, eketsa tlhahiso, le ho tlisa melemo ho khampani Ho hlakile melemo ea moruo e hlahisitsoe, 'me matsete a morero oa moreki a ka tlase ho selemo se le seng sa ho fumana chelete ea morero.Ka hona, k'hamphani e khotsofetse haholo ka matšeliso a matla a sebetsang a mochine oa inverter, 'me e tla hlahisa bareki ba bang nakong e tlang.
Nako ea poso: Apr-13-2023