Raws li tsab ntawv ceeb toom los ntawm National Renewable Energy Laboratory (NREL), nrog rau cov nqi roj teeb tsis tu ncua, qhov loj dua tag nrho cov peev txheej ntawm lub zog cia, qhov qis dua lwm cov nqi faib rau txhua chav tsev muaj peev xwm. Qhov no ua rau Battery Energy Storage Systems (BESS) tau txais txiaj ntsig zoo hauv cov ntawv thov loj - muaj peev xwm khaws cia, raws li qhia hauv qab no.
Tus nqi tawg ntawm lithium-ion roj teeb lub zog cia qhov system
Tshwj xeeb, tus nqi tawg rau kev tsim khoom, kev teeb tsa, thiab kev ua haujlwm ntawm cov thawv ntim BESS (Battery Energy Storage Systems) tau qhia hauv cov lus hauv qab no.
BESS Tus Nqi Tshaj Lij Tshaj Tawm (Table 2-4)
| BESS Parameter | Thawv / Enclosure | Hluav taws xob | Qauv | Kev Tswj Kub Kub | Tiv thaiv hluav taws | PCS (Inverter) | Roj teeb Cells |
|---|---|---|---|---|---|---|---|
| 50 kW/2h | 4.3% | 11.3% | 8.7% | 3.4% | - | 7.5% | 64.8% |
| 250 kW/2 h | 1.5% | 5.2% | 5.6% | 2.4% | 2.3% | 7.0% | 76.0% |
| 2500 kW/2 h | 0.7% | 2.5% | 2.0% | 1.3% | 1.0% | 5.0% | 87.5% |
Noj 250kW / 2h ntim BESS ua piv txwv, cov roj teeb yuav suav txog kwv yees li 76% ntawm tag nrho cov nqi; lub thawv, lub hauv paus tswj, ntsuas kub, tiv thaiv hluav taws, kev faib hluav taws xob, thiab lwm yam khoom siv (teeb pom kev zoo, cables, thiab lwm yam) yuav suav txog kwv yees li 15.5%; thiab PCS yuav suav txog kwv yees li 7%. Txawm li cas los xij, daim phiaj - txuas transformer tsis suav nrog hauv cov kab ke saum toj no.
Nws tuaj yeem pom tau tias, los ntawm kev xav ntawm cov khoom siv kho vajtse thiab cov nqi tsim khoom, raws li lub peev xwm thiab lub zog ntawm lub zog cia cov tshuab txuas ntxiv nce, qhov feem pua ntawm cov nqi hluav taws xob hloov hluav taws xob (PCS) thiab lwm yam khoom siv hluav taws xob thiab cov khoom siv hluav taws xob yuav txo qis raws li qhov feem pua ntawm cov nqi roj teeb yuav nce ntxiv. Yog li ntawd, kev tswj cov nqi roj teeb yuav muaj kev txiav txim siab ntawm kev txo nqi tag nrho ntawm cov roj teeb lub zog cia (BESS).