Peb qhov kev daws teeb meem photovoltaic, kev khaws cia hluav taws xob, thiab kev them hluav taws xob sim daws qhov kev ntxhov siab ntawm cov tsheb fais fab los ntawm kev sib txuas ua kecov chaw them hluav taws xob ev, photovoltaics, thiab cov thev naus laus zis khaws cia lub zog roj teeb. Nws txhawb kev mus ncig ntsuab rau cov tsheb fais fab los ntawm lub zog tshiab photovoltaic, thaum txhawb nqa kev khaws cia lub zog txo qhov siab ntawm lub grid los ntawm cov khoom hnyav. Nws ua tiav cov saw hlau kev lag luam roj teeb los ntawm kev siv ntau theem, ua kom ntseeg tau tias kev txhim kho kev noj qab haus huv ntawm kev lag luam. Kev tsim kho ntawm lub zog sib koom ua ke no txhawb nqa kev siv hluav taws xob thiab kev txhim kho ntse ntawm kev lag luam, ua rau muaj kev hloov pauv ntawm lub zog huv, xws li lub zog hnub ci, mus rau hauv lub zog hluav taws xob los ntawm photovoltaics thiab khaws cia rau hauv roj teeb. Cov pawg them hluav taws xob ntawm lub tsheb fais fab ces hloov lub zog hluav taws xob no los ntawm cov roj teeb mus rau cov tsheb fais fab, daws qhov teeb meem them.
I. Topology ntawm Photovoltaic-Cia-Charging Microgrid System
Raws li tau pom hauv daim duab saum toj no, cov khoom siv tseem ceeb ntawm kev sib xyaw ua ke ntawm photovoltaic, kev khaws cia hluav taws xob, thiab kev them hluav taws xob microgrid system topology tau piav qhia hauv qab no:
1. Lub tshuab hloov hluav taws xob tsis siv hluav taws xob: Sab AC ntawm lub tshuab hloov hluav taws xob 250kW txuas nrog rau lub tsheb npav 380V AC, thiab sab DC txuas nrog rau plaub lub tshuab hloov hluav taws xob 50kW bidirectional DC/DC, ua rau muaj kev ntws hluav taws xob ob txoj kev, piv txwv li, them roj teeb thiab tso tawm.
2. Cov hloov pauv DC/DC ob txoj kev: Sab hluav taws xob siab ntawm plaub lub hloov pauv 50kW DC/DC txuas nrog lub davhlau ya nyob twg DC ntawm lub hloov pauv, thiab sab hluav taws xob qis txuas nrog lub roj teeb fais fab. Txhua lub hloov pauv DC/DC txuas nrog ib lub roj teeb.
3. Lub cev roj teeb fais fab: Kaum rau lub roj teeb 3.6V/100Ah (1P16S) yog ib lub roj teeb module (57.6V/100Ah, lub peev xwm nominal 5.76KWh). Kaum ob lub roj teeb modules txuas ua ke los ua ib pawg roj teeb (691.2V/100Ah, lub peev xwm nominal 69.12KWh). Lub roj teeb pawg txuas nrog lub davhlau ya nyob twg qis-voltage ntawm lub bidirectional DC/DC converter. Lub cev roj teeb muaj plaub pawg roj teeb nrog lub peev xwm nominal ntawm 276.48 kWh.
4. MPPT Module: Sab hluav taws xob siab ntawm MPPT module txuas nrog rau 750V DC lub tsheb npav, thaum sab hluav taws xob qis txuas nrog lub photovoltaic array. Lub photovoltaic array muaj rau txoj hlua, txhua txoj muaj 18 275Wp modules txuas nrog ua ke, rau tag nrho 108 photovoltaic modules thiab tag nrho cov zog tso zis ntawm 29.7 kWp.
5. Chaw Them Nqi: Lub kaw lus muaj peb lub zog 60kWdc ev them chaw nres tsheb(tus naj npawb thiab lub zog ntawm cov chaw them hluav taws xob tuaj yeem hloov kho raws li kev khiav tsheb thiab kev xav tau hluav taws xob txhua hnub). Sab AC ntawm cov chaw them hluav taws xob txuas nrog lub tsheb npav AC thiab tuaj yeem siv hluav taws xob los ntawm photovoltaics, kev khaws cia hluav taws xob, thiab lub grid.
6. EMS & MGCC: Cov kab ke no ua haujlwm xws li kev them thiab tso tawm kev tswj hwm ntawm lub kaw lus khaws cia lub zog thiab kev saib xyuas cov ntaub ntawv SOC roj teeb raws li cov lus qhia los ntawm lub chaw xa khoom qib siab dua.
II. Cov yam ntxwv ntawm Cov Txheej Txheem Fais Fab Photovoltaic-Cia-Charging
1. Lub kaw lus siv peb txheej kev tswj hwm: txheej sab saud yog lub kaw lus tswj hwm lub zog, txheej nruab nrab yog lub kaw lus tswj hwm hauv nruab nrab, thiab txheej hauv qab yog txheej khoom siv. Lub kaw lus sib xyaw ua ke cov khoom siv hloov pauv ntau npaum li cas, cov khoom siv saib xyuas thiab tiv thaiv kev thauj khoom, ua rau nws yog lub kaw lus ywj pheej uas muaj peev xwm tswj hwm tus kheej, tiv thaiv, thiab tswj hwm.
2. Lub tswv yim xa hluav taws xob ntawm lub kaw lus khaws hluav taws xob tau hloov kho / teeb tsa raws li qhov siab tshaj plaws, qis tshaj plaws, thiab tiaj tus nqi hluav taws xob ntawm lub zog hluav taws xob thiab SOC (lossis qhov hluav taws xob kawg) ntawm cov roj teeb khaws hluav taws xob. Lub kaw lus lees txais kev xa tawm los ntawm lub kaw lus tswj hluav taws xob (EMS) rau kev tswj hwm kev them thiab tso tawm ntse.
3. Lub kaw lus muaj kev sib txuas lus, kev saib xyuas, kev tswj hwm, kev tswj hwm, kev ceeb toom ntxov, thiab kev tiv thaiv, ua kom ntseeg tau tias kev ua haujlwm txuas ntxiv thiab muaj kev nyab xeeb rau lub sijhawm ntev. Lub kaw lus qhov xwm txheej ua haujlwm tuaj yeem saib xyuas tau los ntawm lub khoos phis tawj tswj hwm, thiab nws muaj peev xwm txheeb xyuas cov ntaub ntawv nplua nuj.
4. Lub kaw lus tswj roj teeb (BMS) sib txuas lus nrog lub kaw lus tswj hluav taws xob (EMS), xa cov ntaub ntawv pob roj teeb thiab, ua ke nrog EMS thiab PCS, ua tiav kev saib xyuas thiab kev tiv thaiv rau pob roj teeb.
Qhov project no siv lub tshuab hloov hluav taws xob hom tower-type energy storage converter PCS, uas muaj cov khoom siv hloov hluav taws xob hauv grid thiab off-grid thiab cov txee faib hluav taws xob. Nws muaj kev ua haujlwm ntawm kev hloov pauv ntawm on-grid thiab off-grid hauv xoom vib nas this, txhawb nqa ob hom kev them nqi: on-grid tas li tam sim no thiab lub zog tas li, thiab lees txais lub sijhawm tiag tiag los ntawm lub khoos phis tawj tswj hwm.
III. Kev Tswj thiab Kev Tswj Xyuas Lub Tshuab Khaws Cia thiab Them Nqi Photovoltaic
Lub kaw lus tswj hwm siv peb theem architecture: EMS yog txheej teem sijhawm sab saum toj, lub kaw lus tswj hwm yog txheej sib koom tes nruab nrab, thiab DC-DC thiab cov pawg them hluav taws xob yog txheej khoom siv.
Lub EMS thiab lub tshuab tswj hwm yog cov khoom tseem ceeb, ua haujlwm ua ke los tswj thiab teem sijhawm rau lub tshuab photovoltaic-storage-charging:
1. Cov Haujlwm EMS
1) Cov tswv yim tswj kev xa hluav taws xob tuaj yeem hloov kho tau yooj yim thiab cov hom kev them thiab tso tawm hluav taws xob thiab cov lus txib hluav taws xob tuaj yeem teeb tsa raws li lub sijhawm hluav taws xob siab tshaj plaws ntawm lub network hauv zos.
2) Lub EMS ua qhov kev ntsuas telemetry tiag tiag thiab kev saib xyuas kev nyab xeeb ntawm cov khoom siv tseem ceeb hauv lub kaw lus, suav nrog tab sis tsis txwv rau PCS, BMS, photovoltaic inverters, thiab cov charging piles, thiab tswj cov xwm txheej ceeb toom uas cov khoom siv tau tshaj tawm thiab cov ntaub ntawv keeb kwm khaws cia hauv ib txoj kev sib koom ua ke.
3) EMS tuaj yeem xa cov ntaub ntawv kwv yees thiab cov txiaj ntsig ntawm kev xam mus rau qhov chaw xa khoom siab dua lossis lub server sib txuas lus deb ntawm Ethernet lossis 4G kev sib txuas lus, thiab tau txais cov lus qhia xa khoom hauv lub sijhawm tiag tiag, teb rau AGC zaus tswj, kev txiav qhov siab tshaj plaws, thiab lwm yam kev xa khoom kom tau raws li qhov xav tau ntawm lub zog fais fab.
4) Lub EMS ua tiav kev tswj hwm kev sib txuas nrog kev saib xyuas ib puag ncig thiab kev tiv thaiv hluav taws: xyuas kom meej tias txhua yam khoom siv raug kaw ua ntej muaj hluav taws kub, tshaj tawm lub tswb ceeb toom thiab lub tswb hnov lus thiab pom, thiab xa cov xwm txheej ceeb toom mus rau backend.
2. Cov Haujlwm Tswj Xyuas Lub Tshuab:
1) Tus tswj hwm kev sib koom tes ntawm lub kaw lus tau txais cov tswv yim teem sijhawm los ntawm EMS: hom them/tso tawm thiab cov lus txib teem sijhawm fais fab. Raws li lub peev xwm SOC ntawm lub roj teeb khaws cia zog, roj teeb them/tso tawm xwm txheej, photovoltaic fais fab tsim, thiab kev siv lub pob them, nws hloov kho kev tswj hwm tsheb npav tau yooj yim. Los ntawm kev tswj hwm kev them thiab tso tawm ntawm DC-DC converter, nws ua tiav kev tswj hwm kev them/tso tawm ntawm lub roj teeb khaws cia zog, ua kom siv tau zoo tshaj plaws ntawm lub kaw lus khaws cia zog.
2) Ua ke DC-DC hom them/tso tawm thiablub tsheb fais fab them nqiThaum lub sijhawm them fais fab, nws yuav tsum tau kho qhov txwv fais fab ntawm lub photovoltaic inverter thiab lub zog tsim hluav taws xob ntawm PV module. Nws kuj tseem yuav tsum tau kho hom kev ua haujlwm ntawm PV module thiab tswj hwm lub tsheb npav system.
3. Txheej Khoom Siv - DC-DC Cov Haujlwm:
1) Lub zog actuator, paub txog kev hloov pauv ntawm lub zog hnub ci thiab lub zog hluav taws xob electrochemical.
2) Lub DC-DC converter tau txais BMS xwm txheej thiab, ua ke nrog lub system controller's scheduling commands, ua DC cluster control kom ntseeg tau tias lub roj teeb sib xws.
3) Nws tuaj yeem ua tiav kev tswj tus kheej, kev tswj hwm, thiab kev tiv thaiv raws li lub hom phiaj tau teem tseg.
—Qhov kawg—
Lub sijhawm tshaj tawm: Kaum Ib Hlis-28-2025
