Ozi bụ isi nke ndị ọrụ
Ụlọ ọrụ nkedo valve ọnụ ụzọ ámá na-emepụtakarị ngwaahịa valvụ.Ngwá ọrụ nke ụlọ ọrụ ahụ na-emepụta ihe na-agụnye ọkụ ọkụ induction nke na-eme ka ọ dị otu-ton, nke na-eji 2000 kVA (10KV / 0.75 kVA) ọkachamara na-ahụ maka mgbanwe ọkụ eletrik, ma kwadebere ya na ụlọ ọrụ nkwụnye ụgwọ abụọ capacitor nwere olu nke 600 kVA, a. otu ton-ugboro ugboro induction oku, 800 kVA (10KV / 0.4 kVA) teknụzụ ọkachamara mgbanwe ike ọkọnọ usoro, a capacitor akwụ ụgwọ kabinet na a olu nke 300 kVA.Eserese usoro ọkọnọ ike bụ nke a:
Ike pụtara ìhè nke ọkụ induction ugboro etiti nke ejiri 2000KVA transformer bụ 700KVA-2100KVA, ike na-arụ ọrụ bụ P = 280KW-1930KW, ibu ọrụ bụ Q=687KAR-830KAR, ihe ike bụ PF=0.4-0.92, yana nke ugbu a na-arụ ọrụⅰ = 538 A-1660 A, ike pụtara ìhè nke etiti ugboro induction ọkụ arụnyere na 800KVA transformer bụ 200KVA-836KVA.The arụ ọrụ ike bụ P = 60KW-750KW, reactive ibu bụ Q = 190KAR-360KAR, ike ihe bụ PF = 0.3-0.9, na-arụ ọrụ ugbu a i = 288 A-1200 A. N'ihi na capacitor ụgwọ ọrụ enweghị ike tinye na-arụ ọrụ (nkwụghachi ụgwọ akpaaka na-ada ada, mgbe ejiri aka na-etinye capacitor aka, ụda olu ike adịghị mma, njem sekit na-agbaji, a na-achịkọta capacitor, mmanụ na-agbapụta, gbawara agbawa, na enweghị ike iji ya), ike zuru oke kwa ọnwa Ihe kpatara ya bụ. PF=0.78, a na-agbanwekwa ọmụrụ nwa nbinye ego kwa ọnwa karịa yuan 32,000.
Nyocha Ọnọdụ Sistemu Ike
Ibu isi nke ọkọnọ ike emezigharịrị maka ọkụ induction ugboro ugboro bụ otu bọọlụ pulse isii.Akụrụngwa na-emegharị ihe na-emepụta ọtụtụ harmonics mgbe ọ na-atụgharị AC ugbu a na DC, nke bụ isi iyi nke harmonics.The harmonic ugbu a webatara n'ime ike grid ga-eme ka kwekọọ na-arụ ọrụ voltaji na njirimara impedance nke ike okporo, na-akpata na frame ọnwụ nke na-arụ ọrụ voltaji na ugbu a nke ike okporo, n'ihe ize ndụ àgwà na ọrụ nchekwa nke ike ọkọnọ usoro, na-abawanye. Mfu ahịrị na ngbanwe voltaji na-arụ ọrụ, na imebi grid ọkụ na nhazi akụrụngwa eletrik nke ụlọ ọrụ ahụ ga-ebute ihe egwu dị njọ.Mgbe reactive ike akwụ capacitor akụ na-etinye n'ime ọrụ, n'ihi na harmonic e ji mara impedance nke capacitor akụ bụ obere, a ọnụ ọgụgụ dị ukwuu nke harmonics na-ẹkenam n'ime capacitor akụ, na capacitance ugbu a na-abawanye ngwa ngwa, na-emetụta ya ọrụ ndụ.N'aka nke ọzọ, mgbe harmonic capacitive reactance nke capacitor akụ hà nhata harmonic inductive reactance nke usoro na a usoro resonance emee, harmonic ugbu a na-amụbawanye nke ukwuu (2-10 ugboro), na-akpata ekpo oke ọkụ na mmebi. ihe capacitor.Tụkwasị na nke ahụ, harmonics ga-eme ka ebili mmiri DC sinusoidal gbanwee, na-eme ka ebili mmiri dị elu sawtooth, nke dị mfe ime ka nkwụsịtụ dị na ihe mkpuchi ahụ.Mwepu obere oge ga-eme ka ịka nká nke ihe mkpuchi ahụ dịkwuo elu ma mee ka ọ dị mfe imebi capacitor.Ya mere, enweghị ike iji capacitor reactive ike akwụ ụgwọ kabinet maka nkwụghachi nke etiti ugboro induction ọkụ, na a nzacha reactive ike akwụ ụgwọ ngwaọrụ kwesịrị pulse ugbu a suppression ọrụ.
Atụmatụ ọgwụgwọ ụgwọ ọrụ ike
Ebumnuche ọchịchị
Emebere ngwaọrụ nkwụghachi ụgwọ nzacha iji zute usoro iwu chọrọ maka mkpochapụ nke harmonics na ike nrụpụta.
N'ime usoro ọrụ 0.75KV na 0.4KV, mgbe akụrụngwa nkwụghachi ụgwọ nzacha hapụrụ ụlọ ọrụ ahụ, a na-ebelata harmonics dị elu na nkezi ike kwa ọnwa nke 0.95 ma ọ bụ karịa.
Ntinye nke loop nkwụghachi ụgwọ nzacha agaghị eme ka mpụta ụda dị ugbu a ma ọ bụ resonance overvoltage na mbịgharị.
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
Reactive ike akwụ ụgwọ teknuzu ọnọdụ;JB/T9663-1999 "Obere-voltaji reactive ike akpaaka onye na-ahụ maka nkwụghachi ụgwọ" Nkwekọrịta dị ugbu a ọnụ ahịa ọkụ eletrik na ngwa eletrik dị ala;GB/T 17625.7-1998
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
Dabere na ọnọdụ ụlọ ọrụ ahụ akọwapụtara, ụlọ ọrụ anyị ewepụtala usoro nzacha nzacha nzacha ọkụ n'etiti nkeji oge.Tụlee nke ọma na ibu ike ihe na nkwekọ suppression, na wụnye a set nke ala voltaji reactive ike nzacha n'okpuru voltaji n'akụkụ nke ụlọ ọrụ 0.75KV na 0.4KV transformers iji kwụsị harmonics, kwụọ reactive ike, na melite ike ihe.N'oge a na-arụ ọrụ ọkụ nke etiti etiti, ngwaọrụ rectifier na-emepụta 6K + 1 harmonics, na usoro Fourier na-eji decompose na gbanwee ugbu a iji mepụta 5 harmonics nke 250HZ na 7 harmonics n'elu 350HZ.Ya mere, n'ime imewe nke etiti oge induction ọkụ nzacha reactive ike nkwụghachi ụgwọ, ugboro nke 250HZ, 350HZ na gburugburu ga-emebe iji hụ na nzacha nzacha loop nwere ike ezi uche kwụsị pulse ugbu a ka na-akwụghachi ihe reactive ibu na imeziwanye ike ihe.
imewe ọrụ
A na-akwụ ụgwọ ike zuru oke nke ọkụ induction ugboro 2-ton nke dabara na 2000 kVA transformer site na 0.78 ruo ihe dịka 0.95.Ngwa nzacha nzacha kwesịrị ịkwado ya na ikike nke 820 kVA, wee gbanwee na-akpaghị aka n'ime otu 6 nke ikike, nke ọ bụla dabara na winding na ala voltaji akụkụ nke transformer maka nkwụghachi.Ike nhazi ọkwa ọkwa bụ 60KVAR, nke nwere ike izute ike dị iche iche nke ọkụ induction ugboro ugboro.A na-akwụ ụgwọ ihe ike zuru oke nke ọkụ induction ugboro 1 ton nke dabara na 800 kVA transformer site na 0.78 ruo ihe dịka 0.95.Ngwa nzacha ihe nzacha kwesịrị ịbụ nke nwere ikike nke 360 kVA, nke enwere ike ịtụgharị na-akpaghị aka ka ọ bụrụ otu ikike 6, yana ikike nhazi ọkwa bụ 50 kVA, nke nwere ike izute ihe dị iche iche chọrọ ike nke ọkụ induction ugboro ugboro.Ụdị imewe a na-ekwe nkwa n'ụzọ zuru ezu na ihe ike gbanwere dị elu karịa 0.95.
Ntụle mmetụta mgbe echichi nke nzacha nzacha
Na mbido June 2010, etinyere ngwaọrụ nkwụghachi ụgwọ ọkụ nke etiti oge ọkụ ma tinye ya n'ọrụ.Akụrụngwa na-akpachapụ anya mgbanwe ibu nke ọkụ induction ugboro ugboro, na-akwụghachi ụgwọ ọrụ na-arụ ọrụ, ma na-emezi ihe ike.nkọwa dị ka ndị a:
Mgbe agbanyere ngwaọrụ nzacha ihe nzacha, mgbanaka ihe na-agbanwe ike bụ ihe dịka 0.97 (ihe na-akpata ike mgbe ebipụrụ ngwaọrụ nzacha nzacha bụ ihe dịka 0.8)
Ibu ọrụ
Nke ugbu a nke 2000KVA transformer na-ebelata site na 1530A ruo 1210A, mbelata nke 21%;A na-ebelata nke ugbu a nke ihe ntụgharị 800KVA site na 1140A ruo 920A, mbelata nke 19.3%, nke ruru 20% mbelata nke transformer, ya bụ, 560KVA, na mmebi ike mmepụta mgbe akwụsịrị ụgwọ na-ebelata site na 21%.;WT =Ọnwụ nke ngbanwe bụ yuan 24, na ọnwụ kwa ọnwa bụ 15KW=150d;Ọnụ ego nchekwa kwa ọnwa bụ 1580d=230d*30d(2307){0.782800}20d.
ọnọdụ ihe kpatara ike
N'ọnwa a, ike zuru oke nke ụlọ ọrụ ahụ mụbara site na 0.78 ruo 0.97, a na-agbanwe ọnụego mmeghachi omume kwa ọnwa na ụgwọ ọrụ ka 0, ma gbanwee ntaramahụhụ ahụ ka ọ bụrụ yuan 4,680.Kemgbe ahụ, ihe ike kwa ọnwa ka dị na 0.97-0.98, ụgwọ ọrụ kwa ọnwa dị n'etiti yuan 3,000-5,000.
N'ozuzu, ngwaahịa a nwere ikike magburu onwe ya iji gbochie pulse ugbu a ma kwụọ ụgwọ ọrụ ike, dozie nsogbu nke ụlọ ọrụ ahụ na-adịte aka nke ibu ọmụrụ nwa na ntaramahụhụ ụgwọ ọrụ, melite ikike mmepụta nke ndị na-agbanwe agbanwe, na-eweta uru akụ na ụba doro anya na ụlọ ọrụ ahụ , Naghachi. ego onye ahịa na-erughị otu afọ.Ya mere, nkwụghachi ụgwọ ike reactive nke ọkụ etiti ugboro ugboro nke ụlọ ọrụ ahụ na-arụ na-enye afọ ojuju, ọ ga-adọtakwa ọtụtụ ndị ahịa n'ọdịnihu.
Oge nzipu: Eprel-14-2023