Hauv Hybrid System, DC coupling thiab AC coupling yog ob txoj hauv kev tsim vaj tsev rau kev sib koom ua ke photovoltaic (PV) modules, lub zog cia roj teeb, thiab cov khoom thauj lossis daim phiaj. Qhov tseem ceeb sib txawv yog nyob rau hauv seb cov hluav taws xob tsim los ntawm PV modules xa mus rau lub roj teeb nyob rau hauv ncaj qha tam sim no (DC) los yog alternating tam sim no (AC).
Hauv qab no yog cov ncauj lus kom ntxaws sib piv ntawm ob lub thev naus laus zis:
1. Cov ntsiab cai tseem ceeb thiab lub zog ntws
DC Coupling:
- Txoj Cai:
DC hluav taws xob tsim los ntawm PV modules yog pub rau DC input ntawm lub zog hloov hluav taws xob (PCS) ntawm PV maub los (DC-DC converter). Qhov kev sib xyaw ua ke no ua cov haujlwm hauv qab no:
- Hloov ib feem ntawm DC lub zog rau hauv AC rau cov khoom thauj hauv zos lossis daim phiaj xa tawm.
- Txuas ncaj qha roj teeb siv DC fais fab (DC-rau-DC).
- Tshem tawm lub roj teeb los ntawm kev hloov DC rov qab rau AC rau kev thauj khoom lossis kev txhaj tshuaj.
- Zog Flow (Charging):
PV Modules (DC) → PV Controller → Roj teeb (DC)
(Direct DC-rau-DC them txoj kev)
- Zog Flow (Tshaj Tawm):
Roj teeb (DC) → PCS (DC-rau-AC) → Load / Grid (AC)
- Cov ntsiab lus tseem ceeb:
Thaum them lub roj teeb, hluav taws xob tseem nyob hauv DC daim ntawv thoob plaws hauv cov txheej txheem, zam kev hloov pauv tsis tsim nyog.
AC Coupling:
- Txoj Cai:
DC hluav taws xob los ntawm PV modules yog thawj zaug hloov dua siab tshiab rau AC ntawm lub siab PV inverter. Lub zog AC no tuaj yeem:
- Muab cov khoom thauj hauv zos ncaj qha.
- Yuav exported rau daim phiaj.
Yuav kom them lub roj teeb, lub zog AC yuav tsum tau hloov rov qab rau DC los ntawm PCS (roj teeb inverter).
- Zog Flow (Charging):
PV Modules (DC) → PV Inverter (DC-rau-AC) → PCS (AC-rau-DC) → Roj teeb (DC)
(Cuam nrog ob kauj ruam hloov pauv: DC → AC → DC)
- Zog Flow (Tshaj Tawm):
Roj teeb (DC) → PCS (DC-rau-AC) → Load / Grid (AC)
- Cov ntsiab lus tseem ceeb:
Them lub roj teeb yuav tsum muaj tag nrho DC → AC → DC hloov pauv, qhia txog kev poob ntxiv.
2. Cov ntsiab lus sib piv ntawm cov yam ntxwv tseem ceeb
Xaus
Ob lub DC thiab AC coupling muaj qhov zoo sib xws nyob ntawm cov ntsiab lus ntawm daim ntawv thov. DC coupling excels nyob rau hauv efficiency thiab nqi-effectiveness rau tshiab installation, ua rau nws zoo tagnrho rau greenfield tej yaam num tsom rau kev ua tau zoo. AC coupling, ntawm qhov tod tes, muaj kev hloov pauv ntau dua thiab rov ua kom zoo dua qub, ua rau nws xaiv qhov kev xaiv ntxiv rau kev khaws cia rau PV systems uas twb muaj lawm.
Qhov kev xaiv zoo tshaj yog nyob ntawm ntau yam ntawm qhov project tshwj xeeb-xws li seb lub kaw lus tshiab lossis rov ua dua tshiab, kev txwv nyiaj txiag, lub hom phiaj kev ua tau zoo, cov phiaj xwm nthuav dav yav tom ntej, thiab kev xav txog kev nyab xeeb. Raws li kev siv thev naus laus zis, ob qho tib si kev tsim kho txuas ntxiv mus ntxiv: DC-coupled hybrid inverters tau dhau los ua ntau yam thiab muaj zog, thaum AC-coupled systems tau txhim kho nyob rau hauv cov nqe lus ntawm kev sib koom tes tswj thiab kev hloov dua siab tshiab.
Qhia rau kuv paub yog tias koj xav tau ib qho qauv tsim rau cov neeg tuaj saib tshwj xeeb (xws li, tub ua lag luam, engineers, tus tsim txoj cai) los yog formatted rau carousel ncej.
