Kev cuam tshuam ntawm hnub ci thiab kev cia ntawm lub zog Factor
Photovoltaic (PV) kev lag luamcov kws tshaj lij paub zoo txog kev sib raug zoo ntawm kev sib koom ua ke hnub ci thiab daim phiaj hluav taws xob. Thaum daim phiaj - khi PV system raug ntsia, nws offsets lub zos load los ntawm kev txhaj tshuaj muaj zog. Vim tias qhov chaw rub tawm lub zog tsawg dua (P) los ntawm daim phiaj siv hluav taws xob thaum nws qhov kev thov muaj zog (Q) tseem tsis hloov pauv, tag nrho daim phiaj hluav taws xob (PF) poob. Txhawm rau tiv thaiv qhov no, cov kws ua haujlwm yuav tsum suav rov qab siv lub zog tsis txaus thiab ua kom muaj peev xwm ntawm Static Var Generators (SVGs) lossis cov tsev txhab nyiaj capacitor.
Txawm li cas los xij, kev taw qhia ntawm Energy Storage Systems (ESS) ntxiv cov txheej txheem tshiab. Cov lus nug tseem ceeb tshwm sim: Puas yog qhov sib ntxiv ntawm ESS xav tau kev hloov kho ntawm cov khoom siv hluav taws xob uas twb muaj lawm? Txhawm rau teb qhov no, peb yuav tsum txheeb xyuas qhov system los ntawm ob qho tib si ntev - lub sijhawm them nqi thiab qhov tseeb - lub sijhawm ua haujlwm sawv cev.
Theoretical Balance thiab Topology Layout
Los ntawm kev xav theoretical nkaus xwb thiab kev tswj xyuas, lub zog cia lub zog ua haujlwm ntawm lub voj voog ntawm kev sib npaug ntawm kev them nyiaj thiab tso tawm. Txij li thaum cov tuam txhab siv hluav taws xob feem ntau ntsuas qhov ntsuas hluav taws xob txhua hli raws li tag nrho cov khoom siv hluav taws xob thiab cov hluav taws xob rov ua haujlwm, qhov cuam tshuam ntawm ESS ntawm lub zog hluav taws xob txhua hli yog qhov kev xav tsis zoo.
Txhawm rau kom tswj tau qhov tseeb raws li qhov laj thawj no, qhov piv txwv thiab kab sib chaws - cov ntsiab lus txuas rau qhov qis -voltage system yuav tsum tau muab tso rau hauv kev sib tw. Qhov zoo tshaj plaws topology layout yuav tsum qhia meej txog qhov kev sib raug zoo ntawm plaub qhov tseem ceeb: lub ntsiab siv hluav taws xob ntsuas qhov taw qhia (lub rooj vag), ESS daim phiaj-kev sib txuas taw tes, qhov qis-voltage reactive fais fab them nqi piv txwv, thiab PV kab sib chaws- taw tes txuas. Muab tso rau hauv cov ntsiab lus kom zoo no ua kom ntseeg tau tias tus tswj nyiaj them tuaj yeem paub qhov txawv ntawm qhov hloov pauv thiab kev ua haujlwm cia.
Tiag -Lub Sijhawm Dynamic Shifts thiab Mid-Voltage Solutions
Thaum lub sij hawm them nyiaj thiab tawm mus, kev hloov pauv sai hauv lub zog ua haujlwm ua rau lub zog hloov pauv hloov pauv ntawm ESS qhov chaw txuas thiab lub qhov rooj siv hluav taws xob tseem ceeb. Thaum tso tawm, lub zog siv hluav taws xob hauv zos los ntawm daim phiaj txo qis thaum lub zog reactive nyob twj ywm, ua rau lub zog ua kom poob. Piv txwv li, thaum lub sij hawm them nyiaj, active zog kos los ntawm kab sib chaws nce, ib ntus tsav lub hwj chim loj.
ESS Discharging: Active Power ↓ , Reactive Power ↔ =>Power Factor ↓
ESS Charging: Active Power ↑ , Reactive Power ↔ =>Lub zog Factor ↑
Rau nruab nrab -voltage (10kV / 35kV) daim phiaj- khi lub zog khaws cia, cov sijhawm tiag tiag - lub sijhawm poob thaum tawm tuaj yeem ua rau lub zog loj hauv zos. Ib yam li nruab nrab -voltage PV systems, nws tau pom zoo kom nruab ib qho SVG ntawm qhov nruab nrab -voltage busbar rau dynamic reactive zog them. Thaum lub zog tswj hwm qhov system (EMS) tuaj yeem theoretically xa mus rau qhov chaw cia Lub Hwj Chim Hloov Pauv (PCS) los txhaj lub zog reactive, ua li ntawd ua rau kom cov tooj liab thiab hlau poob ntawm ESS, thaum kawg txo qhov project cov nyiaj tau los ntawm lub neej.