Ntawm no yog cov lus piav qhia ntxaws ntxaws ntawm plaub qhov teeb meem tseem ceeb hais txog kev sib txuas ntawm cov tshuab hluav taws xob diesel thiab lub zog cia. Qhov no hybrid zog system (feem ntau hu ua "Diesel + Cia" hybrid microgrid) yog ib qho kev daws teeb meem zoo tshaj plaws rau kev txhim kho kev ua tau zoo, txo cov roj noj, thiab ua kom muaj zog ruaj khov, tab sis nws txoj kev tswj tau nyuaj heev.
Core Issues Overview
- 100ms Reverse Power Teeb meem: Yuav ua li cas tiv thaiv lub zog cia los ntawm lub zog rov qab pub mis rau lub tshuab hluav taws xob diesel, yog li tiv thaiv nws.
- Cov zis hluav taws xob tas li: Yuav ua li cas kom lub cav diesel khiav tsis tu ncua hauv nws qhov chaw ua haujlwm siab.
- Sudden Disconnection of Energy Storage: Yuav ua li cas los daws qhov cuam tshuam thaum lub zog cia kaw cia dheev poob tawm ntawm lub network.
- Reactive Fais Fab Teebmeem: Yuav ua li cas koom tes sib koom siv hluav taws xob sib koom ntawm ob qhov chaw kom ntseeg tau tias muaj hluav taws xob ruaj khov.
1. Qhov teeb meem 100ms Reverse Power
Teeb meem piav:
Lub zog rov qab tshwm sim thaum lub zog hluav taws xob ntws los ntawm lub zog khaws cia (lossis lub nra) rov qab mus rau lub tshuab hluav taws xob diesel. Rau lub cav diesel, qhov no ua zoo li "lub cev muaj zog," tsav lub cav. Qhov no yog qhov txaus ntshai heev thiab tuaj yeem ua rau:
- Mechanical Damage: Kev tsav tsheb tsis zoo ntawm lub cav tuaj yeem ua rau cov khoom puas xws li lub crankshaft thiab txuas rods.
- Qhov System Instability: Ua rau muaj kev hloov pauv hauv lub tshuab hluav taws xob lub tshuab hluav taws xob ceev (ntau zaus) thiab qhov hluav taws xob, uas ua rau raug kaw.
Qhov yuav tsum tau daws nws nyob rau hauv 100ms tshwm sim vim hais tias cov tshuab hluav taws xob diesel muaj cov tshuab hluav taws xob loj thiab lawv cov kev tswj xyuas ceev teb qeeb (feem ntau ntawm qhov kev txiav txim ntawm vib nas this). Lawv tsis tuaj yeem tso siab rau lawv tus kheej kom nrawm nrawm qhov hluav taws xob rov qab. Kev ua haujlwm yuav tsum tau ua los ntawm ultra-ceev teb lub zog hloov pauv qhov system (PCS) ntawm lub zog cia.
Kev daws:
- Lub hauv paus ntsiab lus: "Diesel leads, cia ua raws." Hauv tag nrho cov kab ke, lub tshuab hluav taws xob diesel teeb ua raws li qhov siv hluav taws xob thiab zaus siv (piv txwv li, V / F tswj hom), piv rau "daim phiaj". Lub zog cia lub zog ua haujlwm hauv Constant Power (PQ) Control Mode, qhov twg nws lub zog tso zis tsuas yog txiav txim siab los ntawm cov lus txib los ntawm tus tswj hwm.
- Tswj Logic:
- Kev Saib Xyuas Lub Sijhawm Tiag: Lub kaw lus tus tswj hwm (lossis lub PCS nws tus kheej) saib xyuas lub zog tso zis (
P_diesel) thiab kev taw qhia ntawm lub tshuab hluav taws xob diesel hauv lub sijhawm tiag tiag ntawm kev kub ceev heev (piv txwv li, ntau txhiab zaus hauv ib ob). - Fais fab Setpoint: Lub hwj chim setpoint rau lub zog cia system (
P_set) yuav tsum txaus siab:P_load(tag nrho load zog) =P_diesel+P_set. - Kev hloov ceev ceev: Thaum lub load dheev poob qis, ua rau
P_dieselmus rau qhov tsis zoo, tus maub los yuav tsum tsis pub dhau ob peb milliseconds xa cov lus txib mus rau PCS cia kom txo nws lub zog tawm tam sim lossis hloov mus rau lub zog nqus (them nqi). Qhov no absorbs lub zog ntau dhau rau hauv cov roj teeb, kom ntseeg tauP_dieseltseem zoo.
- Kev Saib Xyuas Lub Sijhawm Tiag: Lub kaw lus tus tswj hwm (lossis lub PCS nws tus kheej) saib xyuas lub zog tso zis (
- Kev Tiv Thaiv Kev Nyab Xeeb:
- Kev sib txuas lus ceev ceev: Kev sib txuas lus ceev ceev (piv txwv li, CAN tsheb npav, ceev Ethernet) yuav tsum tau nruab nrab ntawm lub tshuab hluav taws xob, lub PCS, thiab tus tswj hwm lub cev kom ntseeg tau tias cov lus txib qeeb qeeb.
- PCS Cov Lus Teb Ceev: Niaj hnub nimno PCS cov chav nyob muaj lub sijhawm teb lub zog nrawm dua 100ms, feem ntau hauv 10ms, ua rau lawv muaj peev xwm ua tau raws li qhov yuav tsum tau ua.
- Kev Tiv Thaiv Tsis Muaj Peev Xwm: Tshaj li qhov kev sib txuas ntawm kev tswj hwm, qhov rov qab hluav taws xob tiv thaiv relay feem ntau yog ntsia ntawm lub tshuab hluav taws xob diesel tso tawm raws li qhov kawg kho vajtse thaiv. Txawm li cas los xij, nws lub sijhawm ua haujlwm yuav yog ob peb puas milliseconds, yog li nws feem ntau ua haujlwm tiv thaiv thaub qab; cov tub ntxhais ceev ceev tiv thaiv cia siab rau kev tswj qhov system.
2. Lub zog tso zis tas li
Teeb meem piav:
Diesel xyaw ua haujlwm ntawm qhov siab tshaj plaws roj efficiency thiab qis tshaj emissions nyob rau hauv ib tug load range ntawm kwv yees li 60% -80% ntawm lawv cov nqi zog. Tsawg loads ua rau "ntub stacking" thiab carbon buildup, thaum loads siab heev ua rau kom roj noj thiab txo lifespan. Lub hom phiaj yog cais cov diesel los ntawm kev hloov pauv, ua kom nws ruaj khov ntawm qhov chaw ua haujlwm tau zoo.
Kev daws:
- "Peak Shaving and Valley Filling" Control Strategy:
- Teem Basepoint: Lub tshuab hluav taws xob diesel yog ua haujlwm ntawm qhov tso zis hluav taws xob tas li ntawm nws qhov pom kev ua haujlwm zoo (piv txwv li, 70% ntawm lub zog ntsuas).
- Kev Cai Cia:
- Thaum Load Demand > Diesel Setpoint: Lub zog tsis txaus (
P_load - P_diesel_set) yog supplemented los ntawm lub zog cia system tso tawm. - Thaum Load Demand < Diesel Setpoint: Lub zog tshaj (
P_diesel_set - P_load) yog absorbed los ntawm lub zog cia system them.
- Thaum Load Demand > Diesel Setpoint: Lub zog tsis txaus (
- Cov txiaj ntsig ntawm qhov system:
- Lub cav diesel khiav tsis tu ncua ntawm kev ua haujlwm siab, ua haujlwm zoo, txuas ntxiv nws lub neej thiab txo cov nqi kho.
- Lub zog cia system smooths tawm drastic load fluctuations, tiv thaiv lub inefficiency thiab hnav los ntawm nquag diesel load hloov.
- Tag nrho cov roj noj yog txo kom tsawg.
3. Sudden Disconnection ntawm lub zog cia
Teeb meem piav:
Lub zog cia lub zog yuav cia li poob offline vim lub roj teeb tsis ua haujlwm, PCS txhaum, lossis kev tiv thaiv kev mus ncig. Lub hwj chim yav dhau los raug tswj los ntawm kev cia khoom (txawm yog tsim los yog siv) tam sim ntawd hloov mus rau lub tshuab hluav taws xob diesel, tsim kom muaj lub zog loj heev.
Kev pheej hmoo:
- Yog tias qhov chaw cia tau tso tawm (txhawb nqa lub nra), nws qhov kev cuam tshuam hloov pauv tag nrho cov khoom thauj mus rau lub tshuab hluav taws xob, uas yuav ua rau overload, zaus (ceev) poob, thiab tiv thaiv kaw.
- Yog tias qhov chaw khaws cia tau them (nqus lub zog ntau dhau), nws qhov kev cuam tshuam tawm ntawm lub tshuab hluav taws xob ntau dhau mus, uas yuav ua rau rov qab fais fab thiab overvoltage, kuj ua rau kev kaw.
Kev daws:
- Diesel Side Spinning Reserve: Lub tshuab hluav taws xob lub tshuab hluav taws xob yuav tsum tsis yog qhov loj me rau nws qhov kev ua tau zoo tshaj plaws. Nws yuav tsum muaj dynamic spare qhov chaw. Piv txwv li, yog hais tias lub siab tshaj plaws system load yog 1000kW thiab lub diesel khiav ntawm 700kW, lub diesel lub rated peev yuav tsum ntau tshaj 700kW + lub peev xwm loj tshaj plaws kauj ruam load (los yog lub cia lub max zog), piv txwv li, ib tug 1000kW chav tsev xaiv, muab ib tug 300kW tsis rau ib tug cia tsis ua hauj lwm.
- Fast Load Control:
- System Real-time Monitoring: Tsis tu ncua saib xyuas cov xwm txheej thiab lub zog khiav ntawm qhov system cia.
- Fault Detection: Thaum kuaj pom qhov kev kaw cia tam sim ntawd, tus tswj xyuas tam sim ntawd xa cov teeb liab ceev ceev rau lub tshuab hluav taws xob.
- Diesel Teb: Lub tshuab hluav taws xob diesel ua haujlwm tam sim ntawd (piv txwv li, txo cov roj txhaj tshuaj sai) kom txo qis zog kom haum rau cov khoom tshiab. Lub peev xwm spinning cia yuav lub sijhawm rau cov lus teb qeeb qeeb.
- Qhov Chaw Nyob Kawg: Load Shedding: Yog tias lub zog poob siab loj dhau rau lub tshuab hluav taws xob, kev tiv thaiv kev ntseeg siab tshaj plaws yog los tso cov khoom tsis tseem ceeb, ua ntej kev nyab xeeb ntawm cov khoom tseem ceeb thiab lub tshuab hluav taws xob nws tus kheej. Cov txheej txheem load-shedding yog ib qho tseem ceeb tiv thaiv yuav tsum tau muaj nyob rau hauv lub system tsim.
4. Reactive fais fab teeb meem
Teeb meem piav:
Reactive zog yog siv los tsim magnetic teb thiab tseem ceeb heev rau kev tswj qhov voltage stability hauv AC systems. Ob lub tshuab hluav taws xob diesel thiab cov PCS khaws cia yuav tsum koom nrog kev tswj hwm lub zog reactive.
- Diesel Generator: Tswj reactive fais fab tso zis thiab voltage los ntawm kev kho nws excitation tam sim no. Nws reactive zog muaj peev xwm yog txwv, thiab nws cov lus teb qeeb.
- Cia PCS: Feem ntau cov PCS niaj hnub no yog plaub-quadrant, txhais tau hais tias lawv muaj peev xwm ntawm nws tus kheej thiab nrawm nrawm los yog nqus lub zog reactive (muab lawv tsis pub tshaj lawv qhov pom tseeb lub zog ntsuas kVA).
Kev sib tw: Yuav ua li cas los tswj ob qho tib si kom ntseeg tau qhov system voltage stability yam tsis muaj overloading ib chav tsev.
Kev daws:
- Tswj cov tswv yim:
- Diesel Governs Voltage: Lub tshuab hluav taws xob lub tshuab hluav taws xob tau teeb tsa rau V / F hom, lub luag haujlwm tsim kom muaj qhov system qhov hluav taws xob thiab zaus siv. Nws muab qhov ruaj khov "voltage source."
- Cia koom nrog Reactive Regulation (Optional):
- PQ hom: Lub chaw cia tsuas yog ua haujlwm lub zog ua haujlwm (
Pnrog reactive zog (Q) teem rau xoom. Lub diesel muab tag nrho cov reactive zog. Qhov no yog txoj kev yooj yim tshaj plaws tab sis hnyav rau lub diesel. - Reactive Fais Fab Dispatch Hom: Lub kaw lus tswj hwm xa cov lus txib reactive zog (
Q_set) mus rau lub PCS cia raws li tam sim no voltage tej yam kev mob. Yog hais tias qhov system voltage yog tsawg, hais kom lub cia rau txhaj reactive zog; yog siab, hais kom nws nqus reactive zog. Qhov no relieves lub nra ntawm lub diesel, tso cai rau nws tsom mus rau active zog tso zis, thaum muab finer thiab ceev voltage stabilization. - Fais fab Factor (PF) Tswj hom: Lub hom phiaj fais fab (piv txwv li, 0.95) tau teeb tsa, thiab qhov chaw cia cia tau hloov kho nws cov khoom siv hluav taws xob kom tswj tau lub zog tas li ntawm lub tshuab hluav taws xob diesel terminals.
- PQ hom: Lub chaw cia tsuas yog ua haujlwm lub zog ua haujlwm (
- Kev txiav txim siab muaj peev xwm: Lub PCS cia yuav tsum muaj qhov loj me uas muaj peev xwm pom tseeb txaus (kVA). Piv txwv li, 500kW PCS tso tawm 400kW ntawm lub zog muaj zog tuaj yeem muab qhov siab tshaj plaws.
sqrt(500² - 400²) = 300kVArntawm reactive zog. Yog hais tias reactive zog xav tau siab, yuav tsum muaj ib tug loj PCS.
Cov ntsiab lus
Ua tiav qhov kev sib txuas ruaj khov ntawm lub tshuab hluav taws xob diesel teeb thiab lub zog cia pob khawm ntawm kev tswj hwm hierarchical:
- Hardware Layer: Xaiv lub PCS teb ceev ceev thiab lub tshuab hluav taws xob diesel maub los nrog kev sib txuas lus ceev ceev.
- Tswj Txheej: Ua haujlwm tsim qauv ntawm "Diesel teeb V / F, Cia ua PQ." Lub tshuab hluav taws xob ceev ceev ua haujlwm xa hluav taws xob hauv lub sijhawm tiag tiag rau lub zog ua haujlwm "ncej shaving / hav filling" thiab kev txhawb zog reactive.
- Kev Tiv Thaiv Txheej: Cov txheej txheem tsim yuav tsum suav nrog cov phiaj xwm kev tiv thaiv: thim rov qab kev tiv thaiv hluav taws xob, kev tiv thaiv overload, thiab tswj kev thauj khoom (txawm tias thauj khoom) cov tswv yim los daws qhov kev txiav tawm tam sim ntawm kev cia.
Los ntawm cov kev daws teeb meem tau piav qhia saum toj no, plaub qhov teeb meem tseem ceeb uas koj tau tsa tuaj yeem hais daws tau zoo los tsim kom muaj txiaj ntsig zoo, ruaj khov, thiab txhim khu kev qha diesel-zog cia hybrid fais fab system.
Post lub sij hawm: Sep-02-2025
