Lub hnub ci photovoltaic lub zog tsim hluav taws xob yog hais txog lub zog tsim hluav taws xob uas ncaj qha hloov lub teeb lub zog rau hauv hluav taws xob hluav taws xob yam tsis muaj txheej txheem thermal. Nws cov khoom tseem ceeb yog lub hnub ci hlwb, accumulators, controllers thiab photovoltaic inverters. Nws yog tus cwj pwm los ntawm kev ntseeg siab, lub neej ua haujlwm ntev, tsis muaj kev ua qias tuaj ib puag ncig, kev tsim hluav taws xob ywj pheej thiab kab hluav taws xob- txuas ua haujlwm.
Qhov sib xyaw ua ke ntawm hnub ci photovoltaic fais fab tuag system
Lub tshuab hluav taws xob photovoltaic feem ntau yog tsim los ntawm photovoltaic arrays, roj teeb pob (yeem), roj teeb controllers (optional), inverters, AC fais fab faib khoom, thiab lub hnub nrhiav kev tswj cov tshuab: siab -lub zog tsom rau photovoltaic systems (HCPV) thiab Xws li cov condenser ib feem (feem ntau yog condenser lens lossis iav).
Lub luag haujlwm ntawm txhua feem ntawm lub hnub ci photovoltaic lub zog tsim hluav taws xob yog raws li hauv qab no:
1. Photovoltaic square array
Photovoltaic array (PV Array), called photovoltaic array, is a DC power generation unit composed of several photovoltaic modules or photovoltaic panels assembled together in a certain way and with the same support structure. In the case of light generated by a luminous body), the battery absorbs light energy, and the accumulation of opposite-signal charges occurs at both ends of the battery, that is, a "photo-generated voltage" is generated. This is the "photovoltaic effect". Under the action of photovoltaic effect, electromotive force is generated at both ends of the solar cell, which converts light energy into electric energy and completes the energy conversion.
2. Roj teeb pob (yeem)
The function of the battery pack is to store the electric energy emitted by the solar cell array when it is illuminated and to supply power to the load at any time: the basic requirements for the battery pack used in solar cell power generation are: ① low self-discharge rate; ② long service life; ③ deep discharge Strong ability; ④ high charging efficiency; ⑤ less maintenance or maintenance-free; ⑥ working temperature range is the same; ⑦ low price.
3. Roj teeb tswj (yeem)
Lub roj teeb maub los yog lub cuab yeej uas tuaj yeem tiv thaiv lub roj teeb kom tsis txhob overcharged thiab overdischarged. Txij li thaum muaj pes tsawg lub voj voog ntawm kev them nqi thiab kev tso tawm thiab qhov tob ntawm qhov tso tawm ntawm lub roj teeb yog qhov tseem ceeb uas txiav txim siab lub neej kev pab cuam ntawm lub roj teeb, lub roj teeb tswj uas tuaj yeem tswj cov overcharge lossis overdischarge ntawm lub roj teeb pob yog ib qho khoom siv tseem ceeb.
4. Photovoltaic inverter
Lub inverter yog ib qho khoom siv uas hloov tam sim no ncaj qha mus rau qhov hloov tam sim no. Thaum lub hnub ci hluav taws xob thiab lub roj teeb cia yog DC lub zog thiab lub nra yog AC load, lub inverter yog qhov tseem ceeb. Raws li kev ua haujlwm hom, lub inverter tuaj yeem muab faib ua -grid inverter thiab daim phiaj - txuas inverter. Off-daim phiaj inverters yog siv nyob rau hauv sawv ntsug-ib leeg hnub ci lub zog hluav taws xob los muab lub zog rau kev thauj khoom. Daim phiaj - txuas inverter yog siv rau lub hnub ci hluav taws xob tsim hluav taws xob uas txuas nrog daim phiaj. Lub inverter yuav muab faib ua square yoj inverter thiab sine yoj inverter raws li cov zis waveform. Lub voj voog ntawm square yoj inverter yog qhov yooj yim thiab tus nqi qis, tab sis cov khoom sib haum xeeb yog loj. qis system. Sine yoj inverters yog kim, tab sis tuaj yeem siv rau ntau yam loads.
5. Kev soj ntsuam qhov system
Compared with a solar photovoltaic power generation system at a certain location, the sun rises and sets every day throughout the year, and the sun's illumination angle changes all the time. Only when the solar panels can face the sun at all times can the power generation efficiency reach the highest level. in good condition.
Lub hnub nrhiav kev tswj hwm lub hnub qub uas siv nyob rau hauv lub ntiaj teb no txhua tus yuav tsum suav lub kaum sab xis ntawm lub hnub ntawm lub sijhawm sib txawv ntawm txhua hnub ntawm lub xyoo raws li qhov latitude thiab longitude ntawm qhov chaw tso kawm, thiab khaws lub hnub txoj hauj lwm ntawm txhua lub sijhawm ntawm lub xyoo. hauv PLC, ib qho -chip computer lossis computer software. , uas yog, los ntawm kev suav txoj haujlwm ntawm lub hnub kom ua tiav kev taug qab siv computer cov ntaub ntawv kev xav. Cov ntaub ntawv thiab kev teeb tsa ntawm thaj tsam latitude thiab longitude ntawm lub ntiaj teb yog xav tau. Thaum ntsia, nws tsis yooj yim txav los yog disassemble. Tom qab txhua qhov txav mus, koj yuav tsum rov pib dua cov ntaub ntawv thiab kho ntau yam tsis muaj.