Uru:
- Ikike ịtọlite nsogbu ike dị ka mgbako ibu, eriri eriri USB na ọdịda voltaji nwere echiche ziri ezi na AI.
- Ikike iji nyochaa ihe ike, ihe kwekọrọ na data oriri ike na AI wee mee nchịkọta bara uru
- Ikike iji mejuputa ọrụ iji nyochaa nchedo na ụkpụrụ akụkụ nke AI kwadoro site na ọkọlọtọ dị mkpa na nkwado injinia.
Sistemụ ike bụ mpaghara injinia eletriki nke na-emetụtakwa nchekwa nke ndụ na ihe onwunwe ozugbo. Ịhọrọ eriri eriri na-ezighi ezi, ọkwa nbibi, ma ọ bụ atụmatụ ịkụ ala nwere ike ịdị ka obere mmejọ na akwụkwọ, mana ọ nwere ike ịpụta ikpo ọkụ, ọkụ, ma ọ bụ ọkụ eletrik n'ọhịa. N'ọhịa a, AI na-eme ka ọrụ dị ka mgbako ibu, nkwụsị voltaji, ihe ike na nyocha ike ike; Mana ọ bụ kpọmkwem n'akụkụ a ka nkwenye nke nnwere onwe nke mmepụta na nkwado injinia nwere ikike bụ enweghị mkparịta ụka. N'ime nkeji a, anyị ga-ekpuchi otu esi edobe nsogbu ike na AI na echiche ziri ezi, kọwapụta data ike, yana ihe kpatara enweghị ike itinye uru nchekwa / mbelata na enweghị nkwenye.
Ngụkọta ibu, ngalaba obe na mbelata voltaji
Isi nke ike nkesa imewe bụ atọ metụtara mgbako: ugbu a dọtara site ibu, ike nke USB na-ebu nke a ugbu a n'enweghị (thermal), na voltaji dobe tinyere akara fọdụrụ n'ime oke. AI nwere ike guzobe usoro ndị a; mana ị ga-enyocharịrị echiche nke nzọụkwụ ọ bụla.
Ugbu a maka ibu nke nkeji atọ:
Nkeji atọ ugbu a: I = P / (√3 · U · cosφ · η) Ihe atụ: P = 15 kW, U = 400 V, cosφ = 0.85, η = 0.90I = 15000 / (1.732 · 400I · 0.85 · 0 / 150) 0.95 28.3 A
A na-ahọrọ eriri nke ga-ebu ugbu a n'ihe gbasara ikike ibu ọkụ dị ugbu a (doziri dịka usoro ntinye na ọnọdụ okpomọkụ) na ọdịda voltaji. Odika ọdịda voltaji dị na kọpa kọpa:
Ịdaba voltaji nke atọ (ihe dị ka, resistive): ΔU = √3 · I · L · ρ / A ρ (ọla kọpa) ≈ 0.0175 Ω · mm²/m, L = 60 m, A = 6 mm²ΔU = 1.732 · 28.3 · 6.732 · 28.3 · 6.8.5 Vpercentage: 8.6 / 400 = 2.15% → N'okpuru 3% ịgba ✓ (6 mm² bụ onye kwesịrị ekwesị)
Nleba anya: Mgbakọ ndị a bụ nyocha mbido. Nhọrọ ngalaba ikpeazụ; Ọ bụ onye injinia nyere ikike na-eme ya site n'ịtụle ikike ibu ọkụ dị ugbu a (ya na ihe mgbazi), nguzogide sekit dị mkpụmkpụ, ndakọrịta na ngwaọrụ nchebe yana ọkọlọtọ nrụnye dị mkpa. Enweghị ike itinye otu uru otu ngalaba nke AI nyere na-enweghị nkwenye na tebụl ụkpụrụ na oke nchekwa.
Ngwa ngwa adịghị ike / Ike ngwa ngwa
IKE: "Olee eriri maka moto 15 kW?" (Nsonaazụ: otu ngalaba na-enweghị ihe gbara ya gburugburu; nyere n'amaghị voltaji, anya, ntinye, okpomọkụ, njedebe voltaji, ọ dịghị mma.) IKE: "Copper cable cross-section for the following conditions. Mee PRELIMINARY CALCULATION na-egosi nzọụkwụ: - Ibu Ibu: 15 kW, 405 V 3 φφ, 405 V, 405 V φ, 405 V 3 φφ 0.90- Ahịrị: 60 m, conduit, ọkara 35 Celsius - Voltage dobe ókè: 3% Gbakọọ ugbu a, voltaji drop na chọrọ thermal ike iche iche.
Ihe kpatara ike, nkwekọ na nyocha ike
Na nyocha ịdịmma ike, AI dị ike n'ịchịkọta data nha na iwepụta ụkpụrụ. Mana ọ dị mkpa iji guzobe echiche ndị bụ isi nke ọma.
Triangle ike. Mmekọrịta dị n'etiti ike arụ ọrụ P (kW), ike reactive Q (kVAR) na ike S (kVA):
S² = P² + Q²cosφ = P / S (ihe na-akpata ike) Ihe atụ: P = 80 kW, cosφ = 0.80 → S = 100 kVA, Q = 60 kVARif cosφ na-ebelata ka 0.95 site na nkwụghachi ụgwọ: ọhụrụ Q = 80·tan (acos03.2) capquired kVA. ike: 60 - 26,3 ≈ 33,7 kVAR
Harmonics. Ibu na-abụghị linear (ọkwọ ụgbọala, ike na-enye) na-emepụta harmonics ugbu a. Mgbagwoju anya nkwekọ (THD) na-egosi etu mgbama si agbagọ. Nwalee akụrụngwa a tụrụ anya ya (ọnụọgụ draịva, ịgbanwee) mgbe ị na-atụgharị data nha nha AI.
nha
akara
otu
mgbagwoju anya ugboro ugboro
ike na-arụ ọrụ
P.
kW
na ike anya
ike mmeghachi omume
Q
kVAR
rụọ ọrụ
ike pụtara ìhè
S.
kVA
rụọ ọrụ
Ike
E.
kWh
site na ike (kW)
NDỤMỌDỤ: Njehie AI kachasị na sistemu ike bụ mgbagwoju anya nkeji: kW na kVA, kWh na kW, kVAR nwere kW. Lelee otu otu na nkeji nke ọnụọgụ ọ bụla na mmepụta AI ziri ezi. Ịgbagwojuru uru "ike" yana uru "ike" na-emebi ihe niile site na ịgba ụgwọ ruo na nhọrọ nchekwa.
Na-akọwa data oriri ike
AI nwere ike nyochaa data oriri ike kwa elekere / kwa ụbọchị (kWh) wee kpughee awa kacha elu, ibu ntọala na oriri na-adịghị mma. Nchịkọta dị mfe sitere na usoro oriri nwere Python:
mbubata numpy dị ka np# hourly kWh data (atụ 24 awa)kwh = np.array ([12,11,10,10,11,14,22,35,40,38,36,34, 33,32,34,37,42,45,40,30,25,3" ụbọchị) (kWh):", kwh.sum ()) mbipụta ("Oge kacha elu:", kwh.argmax(), "->", kwh.max(), "kWh") mbipụta ("Base ibu (min):", kwh.min (), "kWh") mbipụta (" Ibu ihe:", kwh.mean ()/kwh.max()))
Ndị AI nwere ike ịkọwa nchịkọta a wee kwuo "ọnụ ọgụgụ kasị elu na 4pm"; Ị na-atụnyere ya na mgbanwe ọrụ akụrụngwa wee chọpụta ma ọ nwere ezi uche. Ọ bụrụ na ihe ibu dị ala (oke elu, nkezi dị ala), enwere ohere maka njikwa ọchịchọ ma ọ bụ nkwụghachi ụgwọ.
Obere Case
Onye injinia ike nwere AI na-agbakọ nkwụghachi ụgwọ iji belata ụgwọ nkwụghachi ụgwọ n'ụgwọ ụgwọ ụlọ ọrụ kwa ọnwa. AI na-akwado ụlọ akụ capacitor 200 kVAR. Onye injinia na-elele nha nkwekọ: enwere ọtụtụ draịva ugboro ugboro na osisi na THD dị elu. Ọkọlọtọ capacitor ụlọ akụ nwere ike mebie ya na harmonics ma mebie ya; N'ebe a, a chọrọ igwe reactor nzacha (detuned). AI echebaraghị ọnụnọ nke harmonics. Onye injinia na-atụgharị ihe ngwọta ka ọ bụrụ ụlọ akụ nwere reactor detuned wee mejuputa ya na nkwenye ikike. Ihe nkuzi: Ngụkọ nkwụghachi ụgwọ AI nwere ike ịbụ nke ziri ezi, mana onye injinia na-enyocha ihe egwu dị na gburugburu ebe nkwekọ na resonance.
Mmejọ a na-emekarị
- Ịgwakọta kW/kVA/kVAR na kW/kWh nkeji.
- Emecha nhọrọ nke ngalaba na otu usoro ma na-awụgharị mgbazi ọkụ na tebụl ọkọlọtọ.
- Na-eleghara nguzogide sekit dị mkpirikpi na nhazi nchedo.
- Na-eburu n'uche na gburugburu ebe obibi kwekọrọ na ihe egwu resonance na nkwụghachi ụgwọ.
- Anaghị enyocha oke nkwụsị voltaji (%).
- Itinye ụkpụrụ nchekwa dị mkpa na-enweghị nkwado injinia.
Na nchịkọta
- Ibu ibu ugbu a, ike thermal cable na voltaji dobe bụ mgbakọ atọ jikọtara ọnụ; Ekwenyere ha niile.
- Tebụlụ ọkọlọtọ nhọrọ ngalaba na nchekwa chọrọ nguzogide sekit dị mkpụmkpụ na nnabata injinia.
- A ghaghị itinye triangle ike (P, Q, S) na ihe ike ike nke ọma; Mgbagwoju anya otu bụ njehie na-adịkarị.
- A ga-enyocha gburugburu ebe obibi kwekọrọ na ihe egwu resonance na nkwụghachi ụgwọ.
- AI na-achikota data oriri ike; Injinia na-eme nkọwa anụ ahụ na nkwenye.
- Enweghị ụkpụrụ nchekwa dị mkpa na sistemu ike na-emejuputaghị na nkwenye na nkwado onwe ya.
Ọrụ ngwa
Maka ibu (dịka moto n'etiti 15-30 kW) jụọ AI maka mgbako mbido nke eriri eriri na nchekwa. Mgbe ahụ: (1) jiri aka ma ọ bụ Python gbakọọ ihe dị ugbu a, ọdịda voltaji na thermal chọrọ, (2) tụlere nsonaazụ ya na tebụl na-ebu ugbu a, (3) lelee otu otu na nkeji nke ọnụọgụ ọ bụla na mmepụta (A, V, kW, kVA) ziri ezi. Ọ bụrụ n'ịhụta enweghị ndakọrịta ma ọ bụ mperi otu, chọpụta ma mezie isi iyi wee rịba ama ihe kpatara achọrọ nkwado injinia ikike.