Lintlha tsa motheo tsa basebelisi
Setsi sa petrochemical haholo se hlahisa lihlahisoa tsa khase.Thepa ea motlakase e sebelisoang ke k'hamphani ke moroalo o bonolo oa ho khanna, 'me sesebelisoa sa phepelo ke 2500 kVA.Setšoantšo sa sistimi ea phepelo ea motlakase ke se latelang:
Lintlha tse sebetsang hantle
Kakaretso ea matla a converter frequency ea 2500KVA transformer ke 1860KVA, karolelano ea matla ke PF = 0.8, 'me hona joale e sebetsang ke 2400-2700A.
Tlhahlobo ea Boemo ba Boemo ba Matla
Senotlolo sa phepelo ea motlakase ea inverter ke mojaro oa mokhanni oa phepelo ea motlakase oa rectifier, eo e leng oa mojaro oa sistimi e thata.Lisebelisoa li hlahisa li-harmonics tse ngata nakong ea ts'ebetso ea ts'ebetso, e leng mohloli o tloaelehileng oa harmonic.Motlakase oa harmonic o kentsoeng ka har'a marang-rang a matla o tla baka matla a sebetsang a harmonic holim'a ts'ebetso ea ts'ebetso ea grid ea matla, e leng se bakang ho feto-fetoha ha motlakase o sebetsang le hona joale oa grid ea matla, ho beha boleng le ts'ireletso ea ts'ebetso ea tsamaiso ea motlakase kotsing, ho eketsa tahlehelo ea mohala le phoso ea motlakase o sebetsang, le ho baka tšenyo e kholo ho marang-rang a motlakase le lifeme tsa ho sebetsa.Thepa ea eona ea motlakase, haholo-holo khabinete ea mats'eliso a matla a khale e tla baka litlamorao tse mpe, 'me ho bonolo ho baka ho thothomela ha harmonic, ho baka tšenyo ea lisebelisoa tsa motlakase joalo ka likhabinete tsa capacitor.Ka hona, filthara ea puseletso ea matla a tlase ea "low-voltage reactive power" e nang le "harmonic suppression function" e lokela ho khethoa ho hatella li-harmonics tsa sistimi, ho lefella meroalo e sebetsang, le ho ntlafatsa matla a matla.
Sefa moralo oa kalafo oa mats'eliso a matla a sebetsang
Lipheo tsa puso
Lisebelisoa tsa matšeliso a filthara li etselitsoe ho fihlela litlhoko tsa taolo bakeng sa khatello ea li-harmonics le matla a sebetsang.
Tlas'a mokhoa oa ts'ebetso ea tsamaiso ea 0.4KV, ka mor'a hore thepa ea matšeliso ea filthara e tlohe fekthering, khatello ea harmonic e ka holimo ho 0.92 ka karolelano ea matla a khoeli le khoeli.
U se ke ua etsa hore harmonic resonance kapa resonance overvoltage le overcurrent ka lebaka la input filter puseletso lekala.
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 holimo ba hona joale ba moeli oa matla a tlase a motlakase le lisebelisoa tsa elektroniki.
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
Matšeliso a tlase a motlakase a sebetsang ka matla
Taolo ea taolo ea maemo a tekheniki DL/T597-1996
Kereiti ea tšireletso ea motlakase ea matla a tlase a GB5013.1-1997
Likopano tsa li-switchgear tse tlase-voltage le li-control gear
Mehopolo ea moralo
Ho ea ka boemo ba 'nete ba khoebo, k'hamphani ea rona e nka ka botlalo matla a matla le khatello ea harmonic ka har'a filthara puseletso e sa sebetseng ea inverter,' me e kenya sesebelisoa sa matšeliso se sa sebetseng ka lehlakoreng la 0.4KV la motlakase o tlase oa transformer ea khoebo. e hatella li-harmonics mme e lefella ho eketseha ha matla a sebetsang.matla ntlha.
Nakong ea ts'ebetso ea converter ea maqhubu, e tla hlahisa linako tse 5 tsa 250HZ, linako tse 7 tsa 350HZ le li-harmonics tse ling tse phahameng.Ka hona, ha ho etsoa puseletso e sa sebetseng ea filthara, e lokela ho netefatsoa hore potoloho ea lekala ea puseletso ea filthara e ka hatella hantle li-harmonics le ho lefella matla a sa sebetseng bakeng sa maqhubu a fetang 250HZ le 350HZ ho ntlafatsa matla a matla.
kabelo ea moralo
Karolo e pharalletseng ea matla a mochini oa tlhahiso ea phepelo ea motlakase e tsamaellanang le mochini o mong le o mong oa 2500 kVA o lefshoa ho tloha ho 0.8 ho isa ho 0.92.Thepa ea matšeliso ea sesebelisoa sa filtration e tlameha ho kenngoa ka matla a 900 kWh.Bokhoni ba lihlopha tse 11 tsa ho arohana ha mekhahlelo bo tsamaisana le mapheo a lehlakoreng la motlakase o ka tlase oa transformer e lokelang ho hokeloa le ho khaoloa ka bo eona.Bokhoni ba ho fetola maemo ke 45KVAR, e ka fihlelang litlhoko tse fapaneng tsa matla a li-starter tse bonolo le mela ea tlhahiso.Mofuta ona oa moralo o tiisa ka botlalo hore matla a fetotsoeng a phahame ho feta 0.95.
Tlhahlobo ea phello ka mor'a ho kenya matšeliso a filthara
Ka Phuptjane 2011, sesebelisoa sa inverter filter reactive power se ile sa kenngoa 'me sa qala ho sebetsa.Sesebelisoa se latela ka bohona phetoho ea mojaro oa inverter, hang-hang se hatella sekhahla se phahameng sa pulse ho lefella mojaro o sebetsang, le ho ntlafatsa matla a matla.lintlha tse latelang:
Kamora hore sesebelisoa sa matšeliso a sefa se sebelisoe, phetisetso ea motlakase e ka ba 0.98 (karolo e phahamisitsoeng e ka ba 0.8 ha sesebelisoa sa puseletso se tlosoa)
Ts'ebetso ea mojaro
Ts'ebetso ea hona joale ea 2500KVA transformer e fokotsehile ho tloha 2700A ho ea ho 2300A, 'me tekanyo ea ho fokotsa ke 15%.Ka mor'a matšeliso, boleng ba ho fokotsa tahlehelo ea matla ke WT=△Pd*(S1/S2)2*τ*[1-(cosφ1/cosφ2)2]=24×{(0.85×2000)/2000}2×0.4≈16 (kw h) Ka foromo, Pd ke tahlehelo ea potoloho e khutšoanyane ea transformer, e leng 24KW, 'me ho boloka litšenyehelo tsa selemo le selemo tsa litšenyehelo tsa motlakase ke 16 * 20 * 30 * 10 * 0.7 * 2 = 134,000 yuan (e thehiloeng ho sebetsa 20 lihora ka letsatsi, matsatsi a 30 ka khoeli, le likhoeli tse 10 ka selemo, 0.7 yuan ka kWh).
boemo ba boemo ba matla
Matla a pharalletseng a k'hamphani a eketsehile ho tloha ho 0.8 ho isa ho 0.95 khoeling ena, 'me matla a matla a tla bolokoa ho 0.96-0.98 khoeling e tlang,' me moputso o tla eketsoa ka 5000-6000 yuan ka Pherekhong.
Ka kakaretso, puseletso ea matla a tlase-voltage e sebetsang ea filthara e bonolo e na le bokhoni bo botle haholo ba ho hatella pulse ea hona joale le ho lefella matla a sebetsang, ho rarolla bothata ba kotlo e matla ea k'hamphani, ho eketsa molumo oa motlakase, le ho fokotsa matla a motlakase. matla a sebetsang Tšebeliso e eketsehileng ea sehlahisoa e ile ea eketsa tlhahiso, ea tlisa melemo e totobetseng ea moruo k'hamphaning, 'me ea khutlisa matsete a moreki nakong ea selemo se le seng.Ka hona, puseletso ea matla a sebetsang a filthara e bonolo e hlahisoang ke k'hamphani e khotsofatsa haholo, 'me e tla hohela bareki ba bangata nakong e tlang.
Nako ea poso: Apr-14-2023