Ozi bụ isi nke ndị ọrụ
Ụlọ ọrụ na-akpụgharị ígwè na-emepụtakarị ígwè na-ekpo ọkụ na-ekpo ọkụ na nkọwa nke 16mm ~ φ150mm.Akụkụ ike nke ahịrị mmepụta nke ụlọ ọrụ ahụ bụ moto DC na-ebugharị ma nwee ihe ntụgharị abụọ 3150KVA.Eserese usoro ọkọnọ ike bụ nke a:
Ezigbo data arụ ọrụ
Nkezi ike nke 3150KVA DC brushless moto bụ PF = 0.75, ugbu a na-arụ ọrụ bụ 2650A, isi pulse ugbu a bụ ugboro 5, ugboro 7, na ntụgharị ntụgharị ugbu a bụ 19.5%.
Nyocha Sistemụ Ike
Ibu ibu nke DC brushless moto ballasts bụ 6 otu-pulse ballasts.Ngwá ọrụ ballast na-emepụta nnukwu ego nke pulse ugbu a na AC, AC na DC arụmọrụ.Ọ bụ isi iyi pulse dị ugbu a.Mgbe ọ na-ewebata n'ime ike okporo, na harmonic ugbu a pulse ugbu a na-arụ ọrụ voltaji na-akpata na njirimara impedance nke netwọk ike, na-akpata na-nke-eku nke voltaji na-arụ ọrụ na ugbu a, nke na-etinye ihe ize ndụ na àgwà na ọrụ nchekwa. nke ọkụ ọkụ na-agbanwe, na-eme ka nkwụsị nke eriri na-arụ ọrụ na-arụ ọrụ, ma nwee mmetụta na-adịghị mma na netwọk ike na ngwá ọrụ eletrik n'onwe ya.
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 a kapịrị ọnụ nke ụlọ ọrụ ahụ si dị, a na-eme atụmatụ maka nkwụghachi ụgwọ ike nke DC brushless moto nyo na-atụle ihe ike ibu na nkwụsị nke ugbu a, na ntinye nke nzacha obere voltaji reactive ike arụnyere na ala 0.4kV. Akụkụ voltaji nke ihe ngbanwe, iji kụdaa pulse ugbu a, ma kwụọ ụgwọ ọrụ mmeghachi omume, ma melite ihe ike.Ballast na-emepụta 6K-1 pulse current na usoro nke moto DC na-enweghị brush, ma na-eji cascaded current agbaze nke dị ugbu a, na mgbaze ugbu a bụ ihe dịka 5250Hz na 7350Hz.Ya mere, a ga-ahazi nkwụghachi ụgwọ ike nke nzacha maka 250Hz, 350Hz na ugboro ndị ọzọ iji hụ na sekit nkwụghachi ụgwọ nzacha nwere ike nyochaa ike mmepụta nke pulse dị ugbu a, meziwanye ihe ike, ma mee ka usoro ahụ na-emegharị ugbu a na-agbaso GB / T3. .
imewe ọrụ
A na-akwụ ụgwọ ike zuru oke nke ihe ntụgharị 3150KVA site na 0.72 ruo ihe dịka 0.95.A ga-etinyerịrị ngwa nkwụghachi ụgwọ nzacha na 2100KVar, wee kewaa n'ime otu 6 nke njikwa njikwa iji kwụọ ụgwọ ikuku n'akụkụ ikuku nke ihe ntụgharị ahụ, ma mezie olu na 95KVAR, na-eburu n'uche mmepụta ike chọrọ nke ahịrị mmepụta.
Ntụle mmetụta mgbe echichi nke nzacha nzacha
N'April 2011, arụnyere ngwaọrụ nkwụghachi ụgwọ ọkụ moto DC moto ma tinye ya n'ọrụ.Ngwa a na-enyocha mgbanwe ibu nke moto DC na-akpaghị aka, ma na-enyocha n'ezie harmonics dị elu iji kwụọ ụgwọ ike na-arụ ọrụ ma melite ihe ike.nkọwa dị ka ndị a:
Eserese nkesa ụdịdị dị iche iche
Ibu Ibu Waveform
Mgbe etinyere ngwaọrụ nzacha nzacha, usoro mgbanwe mgbanwe ike bụ ihe dịka 0.98 (akụkụ ewelitere bụ ihe dịka 0.7 mgbe ewepụrụ ngwaọrụ nzacha nzacha)
Ibu ọrụ
Ihe ike nke ihe ntụgharị 3150KVA dị n'elu 0.95, harmonic nke 5 na-ebelata site na 510A ruo 102A, 7th harmonic na-ebelata site na 300A ruo 60A, na nke ugbu a na-ebelata site na 2650A ruo 2050A, nkwụsị nke 23%.Mgbe nkwụghachi ụgwọ, uru mbelata ọnwụ ike bụ WT=△Pd*(S1/S2)2*τ*[1-(cosφ1/cosφ2)2]=35×{(0.72×3150)/3150}2×0.66≈33 (kw h) Na usoro, Pd bụ mkpụmkpụ-circuit ọnwụ nke transformer, nke bụ 35KW, na kwa afọ na-azọpụta ọkụ eletrik mmefu bụ 33*20*30*10*0.7*2=280,000 yuan (dabere na-arụ ọrụ 20). awa n'ụbọchị, ụbọchị 30 n'ọnwa, na ọnwa 10 kwa afọ, 0.7 yuan kwa kilowatt-hour nke ọkụ eletrik);n'ihi mbelata nke harmonics, a na-echekwa ụgwọ ọkụ eletrik: Ọnwụ nke ihe ngbanwe nke ihe nkwekọ na-eme ugbu a bụ tumadi iji mụbaa ọnwụ ferromagnetic na mfu ọla kọpa.Ọnwụ ferromagnetic metụtara ike nke atọ nke ugboro ugboro ugbu a.Injinia N'ozuzu, 2% ~ 5% na-ewere.Maka ibu mmezi, a na-ewere 2%, ya bụ, WS = 4300 * 6000 * 0.7 * 0.03≈360,000 yuan, ya bụ, nchekwa ọkụ eletrik kwa afọ bụ 28+36=64 (10,000 yuan).
ọnọdụ ihe kpatara ike
Ihe ikike niile nke ụlọ ọrụ ahụ abawanyela site na 0.72 ruo gburugburu 0.95, ihe ikike ikike kwa ọnwa ka dị na 0.96-0.98, na ụgwọ ọnwa kwa ọnwa sitere na ihe karịrị yuan 100,000 ruo yuan 15,000.
DC moto filter ala-voltage reactive ike akwụ ụgwọ nwere ikike igbochi usu ugbu a na-akwụghachi reactive ike ibu, dozie nsogbu nke reactive ike ntaramahụhụ, dịkwuo mmepụta ike nke transformer, ibelata mfu nke arụ ọrụ ike akwụ ụgwọ, welie mmepụta, ma nye Ụlọ ọrụ ahụ emepụtawo uru akụ na ụba dị ịrịba ama, na onye ahịa ahụ enwetawo ego ntinye ego maka ihe na-erughị otu afọ.Ya mere, ụlọ ọrụ nwere nnọọ afọ ojuju na reactive ike akwụ ụgwọ nke brushless DC moto filter, na ga-ewebata ụfọdụ ndị ahịa n'ọdịnihu.
Oge nzipu: Eprel-14-2023