Ozi bụ isi nke ndị ọrụ
Ụlọ ọrụ ngwaahịa rọba na-arụpụtakarị akwa igbe mgbasa ozi ime ụlọ na n'èzí, akwa akwa, na ngwaahịa ihe nkiri a na-atụgharị PVC.Ngwá ọrụ mmepụta nke ụlọ ọrụ ahụ nwere ahịrị mmepụta ihe nkiri PVC obosara anọ, yana ahịrị mmepụta ihe na-agba agba na ahịrị mmepụta foto abụọ, akụkụ ike ahụ na-anabata moto ntụgharị ugboro ugboro na moto DC, 1000KVA sets, 2 sets of 1250KVA transformers, 2 tent nke 800KVA transformer, 1 set nke 630KVA transformers, na a ikike akwụ ụgwọ a na-edobere n'akụkụ voltaji dị ala nke transformer.Eserese usoro ọkọnọ ike bụ nke a:
Ezigbo data arụ ọrụ
Ihe ngbanwe nke 2000KVA nwere ọkụ etiti oge yana inverter nwere ikike kachasị nke 1500KVA, ihe bụ isi ike bụ PF = 0.82, ihe na-arụ ọrụ ugbu a bụ 2250A, ihe nkwekọrịta bụ nke 5th na 7th, yana ngụkọta mgbagha ugbu a bụ 23.6% .
Nyocha Ọnọdụ Sistemu Ike
Isi ibu nke ọkụ induction ugboro etiti, ọkụ induction ugboro ugboro na inverter rectifier ike ọkọnọ bụ 6th pulse rectifier.Akụrụngwa na-emegharị ihe na-emepụta ọtụtụ pulse ugbu a mgbe ị na-atụgharị AC ugbu a na voltaji AC.The harmonic ugbu a webatara n'ime ike okporo nwere ike ime ka usu ugbu a na-arụ ọrụ voltaji, na-akpata mgbanwe na-arụ ọrụ voltaji na nke ugbu a, ize ndụ àgwà na arụmọrụ nchekwa nke ịmafe ike onunu, na-amụba akara ọnwụ na arụ ọrụ voltaji deviation, na-ezighị ezi na-emetụta ike okporo. ngwa eletriki nke ụlọ ọrụ ọkụ n'onwe ya.
Ihe njikwa mmemme kọmputa (PLC) na-enwe mmetụta maka ngbanwe kwekọrọ na voltaji na-arụ ọrụ nke ọkụ ọkụ na-agbanwe.A na-akọwakarị na ngụkọta pulse ugbu a na-arụ ọrụ voltaji etiti ọnwụ (THD) bụ ihe na-erughị 5%, na onye ọ bụla pulse ugbu a voltaji na-arụ ọrụ Ọ bụrụ na etiti ọnụego dị elu, njehie ọrụ nke sistemu njikwa nwere ike ibute nkwụsị nke. mmepụta ma ọ bụ ọrụ, na-ebute nnukwu ihe mberede mmepụta ihe.
Ya mere, a ga-eji nkwụghachi ụgwọ ọrụ obere voltaji nke nzacha nwere ọrụ nke nzacha pulse dị ugbu a iji kwụọ ụgwọ ọrụ na-arụ ọrụ ma melite ihe ike.
Nyochaa atụmatụ ọgwụgwọ nkwụghachi ike na-emeghachi omume
Ebumnuche ọchịchị
Nhazi nke akụrụngwa nkwụghachi ụgwọ nzacha na-emezu ihe achọrọ nke mkpochapụ kwekọrọ na njikwa mmechi ike.
N'okpuru ọnọdụ sistemụ 0.4KV, mgbe etinyere ngwa nzacha nzacha nzacha, a na-ebelata pulse current, na nkezi ike kwa ọnwa dị gburugburu 0.92.
Resonance kwekọrọ n'usoro dị elu, resonance overvoltage, na nfefe gafere site na ijikọ na sekit nkwụ ụgwọ alaka nzacha agaghị eme.
Imewe na-agbaso ụkpụrụ
Ịdị ike Ọha grid harmonics GB/T14519-1993
Ọdịmma voltaji mgbanwe na flicker GB12326-2000
Ọnọdụ teknuzu zuru oke nke ngwaọrụ nkwụghachi ụgwọ ọkụ ọkụ dị ala GB/T 15576-1995
Ngwaọrụ nkwụghachi ụgwọ nke obere voltaji JB/T 7115-1993
Ọnọdụ teknuzu nkwụghachi ụgwọ ọrụ ike JB/T9663-1999 “Obere voltaji reactive ike akpaka akwụ ụgwọ njikwa” Uru ịgbakọ ọnụ ugbu a dị elu sitere na obere voltaji na ngwa elektrọn GB/T17625.7-1998
Usoro eletrọnịkị Ike capacitors GB/T 2900.16-1996
Obere voltaji shunt capacitor GB/T 3983.1-1989
Reactor GB10229-88
Reactor IEC 289-88
Onye na-ahụ maka nkwụghachi ụgwọ ọrụ obere voltaji nyere iwu ọnọdụ teknụzụ DL/T597-1996
Ọkwa nchekwa mkpuchi ọkụ eletrik dị ala GB5013.1-1997
Igwe ọkụ ọkụ ọkụ zuru oke na akụrụngwa njikwa GB7251.1-1997
Imepụta echiche
Dị ka ọnọdụ ụlọ ọrụ ahụ siri dị, ụlọ ọrụ ahụ haziri atụmatụ nkwụghachi ụgwọ ike zuru ezu maka ọkụ induction ugboro ugboro yana ọkụ inverter.N'ịtụle ihe ike ibu na ihe nzacha pulse dị ugbu a, A set nke nzacha obere voltaji reactive ike akwụ ụgwọ, yochaa usu ugbu a, kwụọ ụgwọ reactive, na melite ike ihe.
N'ime usoro dum nke ọkụ induction ugboro etiti na onye ntụgharị, ihe ndị mejupụtara ya na-emepụta 6K pulse currents, nke a na-agbanwe dị ka usoro nke Fourier dị ugbu a si dị, na njirimara pulse currents na-emepụta na 5250Hz na 7350Hz.Ya mere, mgbe ị na-emebe nzacha reactive ike nkwụghachi ụgwọ, nro Starter na 350Hz ugboro imewe atụmatụ hụ na nzacha ụgwọ ike ọkọnọ sekit bụ ihe ezi uche dị na ya na nzacha pulse ugbu a mmepụta ike akwụ ụgwọ ka mma iji melite ike ihe nke mere na usoro software pulse ugbu a bụ. kwekọrọ na GB/T3 n'otu.
imewe ọrụ
Onye ọ bụla ihe nkesa 2000KVA kwekọrọ na ọkụ nke etiti etiti na a na-akwụ ụgwọ ihe ike zuru oke nke inverter site na 0.8 ruo n'elu 0.95, 5th harmonic na-ebelata site na 420A ruo 86A, na 7th harmonic na-ebelata site na 230A ruo 46A.Ekwesịrị itinye ngwaọrụ nzacha nzacha na ikike nke 1060KVar.Kewara 6 otu nke ikike maka akpaka ịmafe, kwekọrọ na etiti ugboro ọkụ, inverter rectifier ike ọkọnọ nyo ụgwọ, kewara 5 ugboro, 7 ugboro na ezi ụgwọ nzacha nzacha ụzọ akpaka ịmafe, izute etiti ugboro ọkụ, inverter nyo na reactive ike Nkwụghachi imewe chọrọ.
Nhazi a na-eme n'ụzọ zuru oke na njikwa kwekọrọ na ọkọlọtọ mba GB/T 14549-93, ma na-edozi ihe ike nke ọkụ ọkụ etiti na ihe ntụgharị ugboro karịa 0.95.Dị ka egosiri na foto dị n'okpuru: Ntụle mmetụta mgbe echichi nke nzacha nzacha
N'ọnwa Jun 2010, etinyere ngwaọrụ nkwụghachi ụgwọ ọrụ nke etiti oge ọkụ na ihe ntụgharị ugboro ugboro wee tinye ya n'ọrụ.Ngwa ahụ na-akpachapụ anya mgbanwe ibu nke ọkụ etiti na ihe ntụgharị ugboro ugboro, ma na-ewepụ nkwekọ dị elu iji kwụọ ụgwọ ike na-emeghachi omume ma melite ihe ike.nkọwa dị ka ndị a:
Eserese nkesa ụdịdị dị iche iche
Ibu Ibu Waveform
Mgbe etinyere ngwaọrụ nzacha nzacha, mgbanwe mgbanwe mgbanwe ike mgbe etinyere ngwaọrụ nkwụ ụgwọ nzacha bụ ihe dịka 0.97 (akụkụ ewelitere bụ ihe dịka 0.8 mgbe ewepụrụ ngwaọrụ nkwụ ụgwọ nzacha)
Ọnọdụ ọrụ ibu A na-eji nke ugbu a nke ọ bụla nke 2000KVA transformers na-ebelata site na 2250A ruo 1860A, nkwụsị nke 17%;Mbelata uru nke ike ọnwụ mgbe akwụ ụgwọ bụ WT = △ Pd * (S1 / S2) 2 * τ * [1-(cosφ1/cosφ2)2] = 24 × {(0.85×2000)/2000}2×0.4≈16 (kw h) Na usoro, Pd bụ mkpirisi okirikiri ọnwụ nke transformer, nke bụ 24KW, na kwa afọ ichekwa ụgwọ ọkụ eletrik bụ 16*20*30*10*0.7=67,000 (Dabere na-arụ ọrụ awa 20 kwa ụbọchị). , ụbọchị 30 n'ọnwa, na ọnwa 10 n'ime otu afọ, 0.7 yuan kwa kilowatt-hour nke ọkụ eletrik);ụgwọ ọkụ eletrik echekwara n'ihi mbelata harmonics: Ọnwụ ndị na-akpata site n'ikwekọ n'ụkpụrụ mmiri na-agbanwe agbanwe bụ n'ihi ụbara ferromagnetic ọnwụ na ọnwụ ọla kọpa na ọnwụ ferromagnetic metụtara ike nke atọ nke ugboro ugboro.Na mkpokọta, a na-ewere 2% ~ 5% na injinia, a na-ewerekwa 2% maka ibu mmezi, ya bụ: WS=2000*6000*0.7*0.02≈168,000 yuan, Ya bụ, enwere ike ịchekwa ụgwọ ọkụ eletrik n'ime afọ niile. (6.7+16.8)*2=47 (10,000 yuan).
ọnọdụ ihe kpatara ike
Akwubawanye ihe ikike ụlọ ọrụ ahụ n'ozuzu ya site na 0.8 ruo 0.95, na-echekwa ihe ikike ikike kwa ọnwa na 0.96-0.98, yana ụgwọ ọrụ ọzọ nke 6,000-10,000 yuan.
N'ihe niile, nkwụghachi ụgwọ ọkụ dị ala nke ihe nzacha MFF na VF nwere ihe nzacha mara mma ma na-akwụghachi ụgwọ ndị na-arụ ọrụ, na-edozi nsogbu nke ntaramahụhụ ike na-emeghachi omume, na-abawanye ikike mmepụta nke ndị na-agbanwe agbanwe, na-eme ka ike dị mma, na-eme ka njirimara nke ọkụ eletrik na-arụ ọrụ. akụrụngwa, ma na-ebelata arụ ọrụ ike akwụ ụgwọ Oriri, arụmọrụ mma, ịrịba aku na uba uru na ụlọ ọrụ, ego na a nloghachi ọnụego nke na-erughị otu afọ maka ndị ahịa, wdg Ya mere, ụlọ ọrụ dị nnọọ afọ ojuju na-akwụ ụgwọ nke etiti ugboro induction ọkụ. na nzacha reactive ibu nke inverter ike ọkọnọ, na ga-ewebata ọtụtụ ndị ahịa n'ọdịnihu.
Oge nzipu: Eprel-14-2023