1. Kev them nqi hluav taws xob
Vmax =V x 1.43 x
2. Qhov nruab nrab tawm tus nqi
Tus nqi tso tawm nruab nrab (h)=Nruam hnub los nag x Load sijhawm ua haujlwm / Qhov siab tshaj tawm qhov tob
3. Cov nqi hluav taws xob suav cov qauv
Tus nqi tsim hluav taws xob nqi =tag nrho tus nqi ÷ tag nrho cov tsim hluav taws xob
Cov nyiaj tau los ntawm lub chaw nres tsheb fais fab =(nqi yuav khoom - tus nqi tsim nqi) x lub sijhawm ua haujlwm hauv lub neej ua haujlwm ntawm lub chaw nres tsheb fais fab
Tus nqi tsim hluav taws xob nqi =(tag nrho tus nqi - tag nrho cov nyiaj pab) ÷ tag nrho cov tsim hluav taws xob
Cov nyiaj tau los ntawm qhov chaw nres tsheb fais fab =(nqi yuav khoom - tus nqi tsim nqi 2) x lub sijhawm ua haujlwm hauv lub neej ua haujlwm ntawm lub chaw nres tsheb fais fab
Cov nyiaj tau los ntawm lub chaw nres tsheb fais fab=(nqi yuav khoom - tus nqi tsim nqi 2) x lub sijhawm ua haujlwm hauv lub chaw nres tsheb fais fab lub neej + tsis yog kev lag luam cov nyiaj tau los
4. Kev xam cov peev nyiaj rov qab
Tsis muaj nyiaj pab: Kev tsim hluav taws xob ib xyoos x tus nqi hluav taws xob ÷ tag nrho cov peev txheej x 100%= tus nqi rov qab txhua xyoo
Cov nyiaj pab rau cov chaw tsim hluav taws xob: Kev tsim hluav taws xob ib xyoos x Cov nqi hluav taws xob ÷ (tag nrho cov nqi peev - tag nrho cov nyiaj pab) x 100%=Tus nqi xa rov qab txhua xyoo
Muaj cov nyiaj pab them nqi hluav taws xob thiab cov nyiaj pab hauv chaw nres tsheb: hluav taws xob txhua xyoo x (tus nqi hluav taws xob + nqi hluav taws xob) ÷ (tag nrho cov nqi peev - tag nrho cov nyiaj pab) x 100%= txhua xyoo rov qab tus nqi
5. Lub sijhawm ua haujlwm
Load ua hauj lwm lub sij hawm (h) =∑ Load zog × Load ua hauj lwm lub sij hawm / ∑ Load zog
6. Hloov pauv tus nqi
η=Pm (lub zog siab tshaj plaws ntawm lub roj teeb ntawm tes) / A (roj teeb ntawm lub xov tooj ntawm tes) × Pin (qhov xwm txheej lub teeb hluav taws xob hauv ib cheeb tsam)
Ntawm lawv: Pin =1KW/㎡=100mW/cm ²
7. Series kev sib txuas ntawm cov khoom siv roj teeb
(1) Tus naj npawb ntawm qhov sib txuas ntawm cov khoom siv roj teeb=nruab nrab ntawm kev siv hluav taws xob txhua hnub (Ah) / nruab nrab txhua hnub lub zog tsim hluav taws xob ntawm cov khoom (Ah)
(2) Tus naj npawb ntawm cov khoom siv roj teeb hauv series=System operating voltage (V) × Coefficient 1.43/Component peak operating voltage (V)
8. Roj teeb
(1) Roj teeb muaj peev xwm= Nruab nrab qhov hluav taws xob siv hluav taws xob (Ah) x Nruam hnub los nag x Tshem tawm qhov kho qhov ntsuas / Qhov siab tshaj tawm qhov tob x Qhov ntsuas kub qis
(2) Tus naj npawb ntawm cov roj teeb hauv series=system khiav hauj lwm voltage/nominal voltage ntawm roj teeb
(3) Tus naj npawb ntawm cov khoom sib txuas ntawm cov roj teeb =tag nrho lub peev xwm ntawm cov roj teeb / lub peev xwm nominal ntawm cov roj teeb
9. Roj teeb muaj peev xwm
Roj teeb muaj peev xwm =Nruab nrab hnub thauj khoom hluav taws xob noj (Ah) × hnub los nag tsis tu ncua / Qhov siab tshaj tawm qhov tob
10. Kev xaiv roj teeb
Roj teeb muaj peev xwm Ntau dua lossis sib npaug rau 5h × inverter fais fab / ntsuas hluav taws xob ntawm cov roj teeb pob
11. Kev suav yooj yim raws li lub hnub ci siab tshaj teev
(1) Cheebtsam fais fab =(cov khoom siv hluav taws xob hluav taws xob x hluav taws xob siv lub sijhawm / lub hnub ci siab tshaj hauv zos) x poob coefficient.
Poob coefficient: coj 1.6 ~ 2.0 raws li cov pa phem hauv zos, kab ntev, lub kaum sab xis installation, thiab lwm yam
(2) Roj teeb muaj peev xwm=(kev siv hluav taws xob siv hluav taws xob x hluav taws xob siv lub sijhawm / qhov hluav taws xob qhov hluav taws xob) x hnub nag los nag x qhov system kev nyab xeeb.
Qhov kev nyab xeeb ntawm qhov system: coj los ntawm 1.6 txog 2.
12. Multi channel load xam raws li lub hnub ci siab tshaj teev
(1) Cov khoom tam sim no tam sim no=ib hnub load noj (Wh) / system DC voltage (V) × peak hnub ci teev (h) × system efficiency coefficient.
System efficiency coefficient: suav nrog roj teeb them efficiency ntawm {{0}}.9, inverter conversion efficiency ntawm 0.85, tivthaiv fais fab attenuation + kab poob + plua plav, thiab lwm yam. ntawm 0.9, kho raws li tej yam kev mob.
(2) Tag nrho lub zog ntawm cov khoom siv hluav taws xob= cov khoom tsim tawm tam sim no x system DC voltage x coefficient 1.43
Coefficient 1.43: Qhov piv ntawm qhov ua haujlwm siab tshaj plaws ntawm cov khoom siv rau kev ua haujlwm voltage ntawm qhov system.
(3) Lub peev xwm ntawm cov roj teeb pob
Lub peev xwm ntim roj teeb {{0}[hnyav load noj txhua hnub Wh/system DC voltage V] x [hnub los nag/inverter efficiency x roj teeb tawm qhov tob]
Inverter efficiency: kwv yees li 80% mus rau 93% nyob ntawm cov khoom xaiv;
Roj teeb qhov tob: Xaiv ntawm 50% thiab 75% raws li nws qhov kev ua tau zoo thiab cov kev xav tau ntawm kev ntseeg siab.
13. Kev suav raws li lub hnub ci siab tshaj teev thiab cov hnub ntawm ob hnub los nag
(1) Kev suav ntawm System Roj Teeb Pob Muaj Peev Xwm
Lub peev xwm ntawm cov roj teeb pob (Ah)= lub sijhawm nyab xeeb x qhov nruab nrab txhua hnub siv lub zog ntawm kev thauj khoom (Ah) x siab tshaj hnub los nag x kub kho qhov ntsuas kub tsawg / qhov siab tshaj tawm qhov tob ntawm lub roj teeb
Kev nyab xeeb yam: nruab nrab ntawm 1.1-1.4;
Kev kho qhov ntsuas kub qis: 1.0 rau qhov kub siab tshaj 0 degree, 1.1 rau qhov kub siab tshaj -10 degree, thiab 1.2 rau qhov kub siab tshaj -20 degree ;
Qhov siab tshaj tawm qhov tob coefficient ntawm lub roj teeb yog {{0}}}.5 rau lub voj voog ntiav, 0.75 rau kev sib sib zog nqus, thiab 0.85 rau alkaline nickel cadmium roj teeb.
(2) Tus naj npawb ntawm cov khoom txuas nrog hauv series
Tus naj npawb ntawm cov khoom hauv series=System operating voltage (V) × Factor 1.43/Peak kev khiav hauj lwm voltage ntawm cov khoom xaiv (V)
(3) Kev suav qhov nruab nrab niaj hnub tsim hluav taws xob ntawm cov khoom
Kev tsim hluav taws xob nruab nrab txhua hnub ntawm cov khoom sib txuas=(Ah)=peak kev khiav hauj lwm tam sim no ntawm cov khoom xaiv (A) x peak hnub ci teev (h) x txoj kab nqes kho qhov ua tau x tiv thaiv kev poob qis
Lub ncov hnub ci teev thiab txoj kab nqes kho qhov tseeb yog cov ntaub ntawv tiag tiag ntawm qhov chaw teeb tsa. Cov khoom tivthaiv attenuation poob kho qhov tseem ceeb tshaj plaws yog hais txog kev poob los ntawm kev sib xyaw ua ke, cov khoom siv hluav taws xob attenuation, tivthaiv plua plav npog, kev them nqi hluav taws xob, thiab lwm yam, feem ntau coj los ua 0.8.
(4) Kev suav ntawm qhov tsawg kawg ntawm lub sijhawm nruab nrab ntawm ob hnub los nag sib law liag thiab qhov yuav tsum tau muaj roj teeb ntxiv
Ntxiv roj teeb muaj peev xwm (Ah)=kev nyab xeeb yam x qhov nruab nrab txhua hnub load noj (Ah) x siab tshaj hnub los nag
(5) Kev suav cov lej ntawm cov khoom sib txuas:
Tus naj npawb ntawm cov khoom sib txuas ua ke =[cov roj teeb ntxiv muaj peev xwm + nruab nrab txhua hnub thauj khoom x luv tshaj hnub luv] / nruab nrab txhua hnub lub zog tsim hluav taws xob ntawm cov khoom x luv tshaj hnub luv
Kev siv hluav taws xob nruab nrab txhua hnub ntawm kev thauj khoom=load fais fab/load khiav hauj lwm voltage x txhua hnub ua hauj lwm teev
14. Kev suav cov txheej txheem raws li cov hluav taws xob txhua xyoo
Cheebtsam (array)=K × (kev ua haujlwm voltage ntawm cov khoom siv hluav taws xob × ua haujlwm tam sim no ntawm cov khoom siv hluav taws xob × lub sijhawm ua haujlwm ntawm cov khoom siv hluav taws xob) / cov hluav taws xob txhua xyoo hauv zos
Thaum ib tug neeg tswj hwm thiab siv nws ib txwm, K tau teem rau 230; Thaum tsis muaj kev saib xyuas thiab kev siv txhim khu kev qha, K yog teem rau 251; Thaum tsis muaj kev saib xyuas, ib puag ncig hnyav, thiab yuav tsum muaj kev ntseeg siab, K yog teem rau 276.
15. Kev xam raws li txhua xyoo hluav taws xob thiab kev kho qhov nqes hav
(1) Square fais fab =coefficient 5618 x kev nyab xeeb x tag nrho cov khoom siv hluav taws xob siv / nqes kev kho qhov ntsuas x ib xyoos ib zaug hluav taws xob nruab nrab ntawm lub dav hlau kab rov tav
Coefficient 5618: Raws li kev them nyiaj thiab tso tawm kev ua haujlwm coefficient, tivthaiv attenuation coefficient, thiab lwm yam;
Kev nyab xeeb: Raws li kev siv ib puag ncig, muaj lub zog thaub qab, thiab muaj cov neeg ua haujlwm hauv lub luag haujlwm, nws tau teem rau ntawm 1.1-1.3.
(2) Roj teeb muaj peev xwm =10 x tag nrho cov khoom siv hluav taws xob siv hluav taws xob / lub cev ua haujlwm voltage; 10 yog qhov coefficient ntawm tsis muaj hnub ci (muaj feem xyuam rau cov hnub los nag tsis tshaj 5 hnub).
16. Kev suav ntawm photovoltaic array fais fab tuag
Kev tsim hluav taws xob ib xyoos ib zaug=(kWh)= ib xyoos ib zaug hauv cheeb tsam tag nrho cov hluav taws xob hluav taws xob (KWH/㎡) × thaj chaw photovoltaic array (㎡) × module conversion efficiency × kho qhov zoo. P=H·A·η·K
Kho coefficient K=K1 · K2 · K3 · K4 · K5
Lub attenuation coefficient ntawm K1 tivthaiv thaum lub sij hawm ua hauj lwm mus sij hawm ntev yog coj li 0.8;
Kev kho rau cov khoom siv hluav taws xob txo qis los ntawm K2 plua plav thaiv thiab qhov kub thiab txias, coj li 0.82;
K3 yog qhov kho kab, coj li 0.95;
K4 yog lub inverter efficiency, coj raws li 0.85 los yog raws li cov chaw tsim tshuaj paus cov ntaub ntawv;
K5 yog qhov kho qhov tseem ceeb rau kev taw qhia thiab qaij lub kaum sab xis ntawm photovoltaic array, coj li ib ncig ntawm 0.9.
17. Xam qhov cheeb tsam ntawm lub photovoltaic array raws li lub zog noj ntawm lub load
Photovoltaic module array cheeb tsam=ib xyoos ib zaug siv hluav taws xob / hauv ib xyoos twg tag nrho hluav taws xob hluav taws xob x module conversion efficiency x kho qhov zoo A=P / H ·η· K
18. Kev hloov pauv ntawm lub hnub ci hluav taws xob hluav taws xob
1 cal =4.1868 joules (J) =1.16278 milliwatt teev (mWh)
1 kWh (kWh) =3.6 megajoules (MJ)
1 kWh/㎡=3.6 megajoules/㎡ (MJ/㎡)=0.36 kilojoules/cm (KJ/cm)
100 milliwatt teev ib centimeter (mWh/cm) =85.98 calories ib centimeter (cal/cm)
1 megajoule ib 'meter' (MJ/m) =23.889 calories ib centimeter (cal/cm)=27.8 milliwatt teev ib centimeter (mWh/cm)
Thaum lub ntsuas hluav taws xob yog calories ib centimeter: txhua xyoo lub hnub ci hnub ci teev {{0}} hluav taws xob x 0.0116 (qhov hloov pauv tau)
Thaum lub ntsuas hluav taws xob yog megajoules ib 'meter': txhua xyoo lub hnub ci hnub ci teev=tawg ÷ 3.6 (qhov hloov pauv tau)
Thaum lub ntsuas hluav taws xob yog kilowatt teev hauv ib lub 'meter': lub hnub ci siab tshaj teev=tawg ÷ 365 hnub
Thaum lub ntsuas hluav taws xob yog kilojoules ib centimeter: lub hnub ci siab tshaj teev {{0}} hluav taws xob ÷ 0.36 (qhov hloov pauv tau)
19. Tilt lub kaum sab xis thiab azimuth lub kaum sab xis ntawm photovoltaic array
(1) Lub kaum sab xis
Latitude tivthaiv kab rov tav inclination lub kaum sab xis
0 degree -25 degree inclination=latitude
26 degree -40 degree inclination=latitude+5 degree -10 degree (+7 degree yog saws nyob rau hauv feem ntau ntawm Tuam Tshoj)
41 degree -55 degree inclination=latitude+10 degree -15 degree
Latitude>55 degree Tilt kaum =Latitude+15 degree -20 degree
(2) Azimuth kaum sab xis
Azimuth=[Peak load lub sij hawm ntawm hnub (24- teev) -12] × 15+(Longitude -116)
20. Qhov sib nrug ntawm cov kab hauv pem hauv ntej thiab nram qab ntawm cov khoom photovoltaic array
D {{0}}.707H /tan [acrsin (0.648cosΦ- 0.399sinΦ)]
D: Pem hauv ntej mus rau sab nraub qaum ntawm cov khoom array
Φ: Latitude ntawm photovoltaic system (zoo nyob rau sab qaum teb hemisphere thiab tsis zoo nyob rau yav qab teb hemisphere)
H: Qhov siab ntsug ntawm lub hauv qab ntug ntawm lub rear photovoltaic module mus rau sab saum toj ntawm lub xub ntiag obstructive