KRL | Umvelisi weBhetri yeLithium eyenziwe ngokweemfuno kunye noGcino-Mandla (BESS)

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Ukumisela ubungakanani be-BESS yogcino olubandayo kwindawo yokuxhela iinkomo eKenya: Ukukhusela igophe lokupholisa xa umbane we-KPLC ucima

Libhalwe liqela le-KRL Power lobunjineli bekhonkco elibandayo nogcino lwamandla lwemizi-mveliso · Lihlolwe okokugqibela: Oktobha 2026

Kwindawo yokuxhela iinkomo zenyama ethunyelwa kwamanye amazwe e-Athi River, eNairobi okanye eNakuru, ukucima kombane we-KPLC ngo-01:00 kunye nejenereyitha yombane ongowokuncedisa engakwaziyo ukuthwala umthwalo kubeka emngciphekweni yonke imfuyo exhelwe ngobo busuku. Xa izidumbu zeenkomo ezili-150 ezisandul’ ukulungiswa zikwigumbi lokupholisa iifeni zesixhobo sokwenza umphunga zimile, amaqondo obushushu ngaphakathi ethangeni aphambuka ngokukhawuleza kwigophe lokupholisa eliqinisekisiweyo.

Kusasa, iqela lokuqinisekisa umgangatho kufuneka lirekhode ukuphambuka kumda obalulekileyo we-HACCP, kwaye izidumbu ebezilungiselelwe ukuthuthwa ngenqwelo-moya ukuya eDubai okanye eRiyadh ziyabanjwa zingathunyelwa — zijongene nokuthotywa ziye kwimarike yasekuhlaleni okanye ukugwetywa njengezingakulungelanga ukutyiwa.

Ngenxa yokuba igumbi lokupholisa izidumbu lisusa ubushushu obuninzi bebhayoloji phantsi kwemida engqongqo yexesha, ukumisela ubungakanani bebhetri yalo yombane ongowokuncedisa kusetyenziswa imigaqo eqhelekileyo eqikelelwayo yogcino olubandayo kudla ngokukhokelela ekupheleni kwamandla ebhetri phakathi kokucima kombane okanye ekucimeni kwe-inverter ngokhuseleko. Apha ngezantsi kukho indlela yobunjineli yokumisela ubungakanani benkqubo yokugcina amandla ngeebhetri (BESS) nenkqubo yokuguqula umbane (PCS) ngokusekelwe kwimithwalo yokwenene yobushushu neyokuqalisa iinjini kwiindawo zokuxhela eKenya.

Engineering illustration of BESS supplying a cold-storage facility through a PCS during a grid outage

1. Kutheni igumbi lokupholisa izidumbu lingenakunyamezela ukucima kombane

Ukugcina igophe lokupholisa emva kokuxhelwa

Isidumbu senkomo esilungisiweyo singena kwigumbi lokupholisa sinobushushu obuyi-38–40°C ngaphakathi kwezihlunu. Indawo ephola ngokucotha kakhulu yingaphakathi lethanga kufuphi nelungu lesinqe. Imigaqo yokhuseleko lokutya okuthunyelwa kwamanye amazwe neemfuno zabathengi baseGulf zifuna ukususwa okuqhubekayo kobushushu: imigangatho yokuthumela ngaphandle ehambelana ne-EU ifuna ubushushu bangaphakathi obuyi-≤7°C ngaphambi kokusika okanye ukuthumela, ngelixa abathengi benyama yenkomo ye-halal epholisiweyo e-UAE naseSaudi Arabia ngokubanzi befuna i-0–4°C. Uninzi lweendawo zokuxhela zaseKenya ezithumela ngaphandle ziqinisekisa umjikelo wokupholisa weeyure ezingama-20 ukuya kwezingama-24 ukuze amacala enyama adlulele ekususweni kwamathambo nasekupakishweni kwiibhokisi ngosuku olulandelayo.

Umthwalo wobushushu uxinaniswe kakhulu kwiiyure ezi-6 ukuya kwezili-12 zokuqala emva kokufakwa. Ngeli nqanaba lokuthoba ubushushu, iicompressor zesikhenkcisi zisebenza kumjikelo wokusebenza oyi-100% okanye kufuphi nawo, kwaye iifeni zesixhobo sokwenza umphunga zisebenza ngokuqhubekayo ngesantya esiphezulu somoya ukuze zisuse ubushushu kumphezulu wesidumbu.

Kwenzeka ntoni kwisidumbu xa ukuhamba komoya kuyeka

Ukuba umbane ucima ngexesha lokuqala lokuthoba ubushushu kwaye ijenereyitha ingakwazi ukuthwala umthwalo:

Naxa kuthintelwe ukonakala komthwalo othunyelwayo, ukuphambuka okuphindaphindiweyo kobushushu kubonakala ngexesha lophicotho lwabathengi ne-Directorate of Veterinary Services (DVS), kubeka emngciphekweni ilayisenisi yeziko yokuthumela kwamanye amazwe.

Ingcaciso yobuchwepheshe ngenyama yenkomo emnyama xa isikwa (DFD): Ezinye iincwadana zezixhobo zithi ukucima kwamagumbi okupholisa kubangela inyama emnyama, eqinileyo neyomileyo (DFD). Kwisayensi yenyama, i-DFD ibangelwa luxinzelelo ngaphambi kokuxhelwa oluphelisa i-glycogen yezihlunu ngaphambi kokulahlekelwa sisazela okwenziwa ngaphambi kokuxhela, nto leyo ethintela ukwehla okuqhelekileyo kwe-pH emva kokufa. Ukucima kombane kwigumbi lokupholisa akubangeli i-DFD; imingcipheko yokwenene yesikhenkcisi kukonakala kwenyama kufuphi nethambo, ukwanda kweentsholongwane kumphezulu, ukulahleka kolwelo ngokuvuza ngokugqithisileyo nokungathotyelwa kwe-HACCP.

Indlela iziganeko zevoltheji ze-KPLC ezonakalisa ngayo iicompressor zesikhenkcisi

Ukuphazamiseka kwegridi kwiintambo ezondla imizi-mveliso kufuphi neNairobi, i-Athi River neNakuru akufane kwenzeke njengokutshintsha okucocekileyo. Ukuhla kwevoltheji, ukusebenza ngesigaba esinye nokungalingani kwevoltheji kudla ngokwandulela ukucima kombane, kulandelwe sisithuba sokutshintsha semizuzwana eli-15 ukuya kwengama-45 ngelixa iswitshi yokutshintsha ezenzekelayo (ATS) iqalisa ijenereyitha yedizili. Iicompressor ze-semi-hermetic zohlobo oluhamba luphindaphinda nolwesikrufu (ezifana neeyunithi ze-Bitzer, Copeland ne-Frascold) zichaphazeleka ngeendlela ezintathu:

2. Izinto ezintathu eziguqukayo eziphoswa kukumiselwa okuqhelekileyo kobungakanani begumbi elibandayo

Into eguqukayo 1: Umthwalo wokuthoba ubushushu xa uthelekiswa nomthwalo wokugcina ubushushu

Indawo yokugcina nokusasaza iimveliso ezikhenkcezisiweyo okanye ezipholisiweyo ezigcinwe sele zipholile idla ngokuqhuba iicompressor zayo ngomlinganiselo wexesha lokusebenza oyi-50–60%. Igumbi lokupholisa izidumbu ngexesha leeyure ezili-12 zokuqala emva kokuxhelwa lisebenza ngolu hlobo: umlinganiselo wexesha lokusebenza oyi-90–100%, owehla uye kwi-50–60% kuphela kwinqanaba lokugqibela lokugcina ubushushu.

Ukumisela umthamo webhetri ngokusekelwe kumlinganiselo womthwalo ophakathi weeyure ezingama-24 kuqinisekisa ukuba ibhetri iza kuphelelwa ngamandla ukuba umbane we-KPLC ucima ngokuhlwa kosuku ekuxhelwe ngalo umthamo opheleleyo. Amandla ebhetri kufuneka abalwe ngokusekelwe kumthwalo wencopho wokuthoba ubushushu.

Into eguqukayo 2: Imithwalo ye-inductive neye-resistive esebenza ngaxeshanye

Inxalenye yenkquboUphawu lombane ngexesha lokusebenza ngombane ongowokuncedisa
Iicompressor eziphambiliUkutsalwa okuqhubekayo kwe-kW ephezulu kunye ne-kVA yokuqalisa ephindwe ka-3× ukuya kwisi-8× ngokuxhomekeke kuhlobo lwesiqalisi
Iifeni zesixhobo sokwenza umphungaUmthwalo oqhubekayo we-inductive; kufuneka usebenze ngaphandle kokuphazamiseka kulo lonke ixesha lokuthoba ubushushu
Iifeni zecondenserUmthwalo oguquguqukayo ofikelela encotsheni kwiimeko zobushushu bangaphandle basemva kwemini
Izifudumezi zombane zokunyibilikisa umkhenkceUmthwalo we-resistive oyi-10–30 kW kwigumbi ngalinye; utsala amandla amaninzi xa uvulwe ngexesha lokucima kombane

Kwi-BESS yendawo yokuxhela edityaniswe ngokufanelekileyo, inkqubo yolawulo lwamandla (EMS) ithintela ukusebenza kwezifudumezi zombane zokunyibilikisa umkhenkce xa isebenza ngaphandle kwegridi ngombane webhetri kwaye ihlula amaxesha okuqalisa kweecompressor ngemizuzwana eli-10–15 kwiqela ngalinye. Ukuthintela ukunyibilikiswa komkhenkce ngombane ngexesha lokucima kombane kangangeeyure ezintathu kugcina umthamo webhetri ulungele iicompressor neefeni zesixhobo sokwenza umphunga.

Into eguqukayo 3: Ubushushu bomoya waseKenya nokuphakama kweRift Valley

3. Iifomula zokumisela ubungakanani inyathelo ngenyathelo: Ukusuka kwiitoni zegumbi lokupholisa ukuya kwi-BESS ne-PCS

Inyathelo 1: Bala amandla asebenzayo ewonke ngexesha lokuthoba ubushushu (Ptotal)

Ptotal = Σ(Pcomp × kload) + Pevap_fans + Pcond_fans + Pcontrols

Ngexesha leeyure ezili-12 zokuqala zokuthoba ubushushu bezidumbu, seta umlinganiselo womthwalo wecompressor kload ube ngu-0.9–1.0.

Umlinganiselo wesikhokelo sobunjineli: Igumbi lokupholisa izidumbu zeenkomo elisebenza kwi-0–2°C lidla ngokufuna umthamo weecompressor oyi-15 ukuya kwi-25 HP ngeetoni ezili-10 zezidumbu ezishushu (olingana malunga ne-12 ukuya kwi-20 kW yombane ongenayo, ngokuxhomekeke kubushushu bokujiyisa obumiselwa yimo engqongileyo). Izikhenkcisi ezikhawulezayo ezisebenza kwi-–28°C ukuya kwi-–35°C zifuna malunga nokuphindwe kabini loo mandla ombane angenayo ngetoni nganye. Soloko usebenzisa iphepha lomthwalo wobushushu lekontraka yakho yesikhenkcisi xa umisela ubungakanani bokugqibela.

Inyathelo 2: Bala umthamo ofunekayo wogcino lwamandla ebhetri (EBESS)

EBESS = (Ptotal × Tbackup) / (DoD × ηsys)

Kwiikhabhinethi zeebhetri ze-LFP zemizi-mveliso, sebenzisa ubunzulu bokukhutshwa kwamandla obuyi-DoD = 0.90 nokusebenza kakuhle kwenkqubo kumjikelo wokutshaja nokukhupha amandla ηsys = 0.92. Khetha ixesha lombane ongowokuncedisa Tbackup ngokusekelwe kwiprofayili yomngcipheko wejenereyitha yakho:

Ixesha ekujoliswe kulo lombane ongowokuncedisa (Tbackup)Indima ekusebenzeniI-BESS enomthamo obhaliweyo ofunekayo nge-100 kW yomthwalo wokuthoba ubushushu
iiyure ezi-2Ukuqhubeka ngaphandle kokuphazamiseka xa i-KPLC icima naxa ijenereyitha ingaqalisi; kunika abalondolozi ixesha lokulungisa ijenereyitha eyonakeleyo~242 kWh
iiyure ezineIgcina izixhobo zegumbi lokupholisa zisebenza ngexesha elide lokucima kombane ebusuku ngaphandle kwenkxaso yejenereyitha~483 kWh
iiyure ezi-8Ukusebenzisa amandla elanga agciniweyo ebusuku, idizili igcinelwe kuphela iimeko zikaxakeka~966 kWh
BESS sizing illustration showing battery energy, backup duration, compressors, fans and controls

Inyathelo 3: Qinisekisa amandla abonakalayo encopho ye-PCS ngokuwathelekisa nokunyuka kombane wokuqalisa iicompressor (SPCS_peak)

SPCS_peak ≥ (ksurge × Plargest_comp) / (cos φstart) + Sbase_load

Hlola i-SPCS_peak ngokuyithelekisa nomlinganiselo we-PCS we-kVA womthwalo ogqithisileyo wemizuzwana eli-10 okanye womzuzu om-1, uze ucwangcise i-PLC yesikhenkcisi ukuze iicompressor ezimbini zingakwazi ukuqala ngaxeshanye.

Engineering illustration connecting BESS, PCS, EMS and starter controls to four refrigeration compressors

Umzekelo obaliweyo: Indawo yokuxhela ethumela ngaphandle exhela iinkomo ezili-150 ngosuku (Athi River)

4. Ukudibanisa amandla elanga aseluphahleni nogcino lwamandla ukunciphisa iintlawulo ze-KPLC

Iindawo zokuxhela zinophahla olubanzi lwentsimbi olungenamthunzi, kwaye imitha yelanga eKenya inomndilili olandelayo: 1,500 ukuya kwi-1,700 kWh/kWp/year. Ngenxa yokuba iicompressor zamagumbi okupholisa nezikhenkcisi ezikhawulezayo zisebenza kakhulu ngexesha leeyure ezishushu zasemini, ukuveliswa kwamandla elanga kuhambelana ngokwemvelo negophe lokupholisa leziko.

Conceptual solar and BESS system with PCS, AC distribution, utility grid and standby generator supplying cold storage

Ukudibanisa i-PV yaseluphahleni ne-KRL BESS kunika iinzuzo ezintathu zemali:

5. Indlela ikhabhinethi ye-KRL Power 125 kW / 261 kWh elungelana ngayo neendawo zokuxhela zaseKenya

6. Cela iphepha elenzelwe wena lokumisela ubungakanani be-BESS yegumbi lokupholisa nexesha lokubuyisa iindleko

Umthwalo omnye owonakeleyo wenyama ethunyelwa ngaphandle okanye icompressor yesikrufu etshileyo ixabisa inxalenye enkulu yenkqubo yorhwebo yeebhetri. Misela ubungakanani benkqubo yakho yombane ongowokuncedisa ngokusekelwe kumthwalo wakho wokwenene wobushushu ngexesha lokuthoba ubushushu nakumsinga wombane wokuqalisa iicompressor ngaphambi kokusilela kwegridi okulandelayo.

Ngenisa umthamo ngeetoni wegumbi lakho lokupholisa ne-HP yeecompressor ukuze ufumane iphepha elenzelwe wena lolungelelwaniso lwe-BESS yegumbi lokupholisa lendawo yokuxhela yaseKenya nokubalwa kwe-ROI elilungiselelwe ziinjineli zombane zekhonkco elibandayo ze-KRL ngokokuphakama kwesiza sakho kunye neqela leentlawulo ze-KPLC elikuchaphazelayo.

Kwiikontraka ze-HVAC-R nee-EPC zelanga zaseKenya: Ufuna ikhabhinethi yogcino lwamandla lwemizi-mveliso ye-125 kW / 261 kWh ekwaziyo ukuthwala umthwalo ogqithisileyo wexesha elifutshane oyi-150% ngamaxabiso avela ngqo kumzi-mveliso? Qhagamshelana nenkampani KRL Power ukuze ufumane amaxabiso abasasazi nenkxaso yobunjineli.

Kubenzi beemveliso zenyama nakubanini beendawo zokuxhela ezithumela kwamanye amazwe: Ufuna isisombululo esipheleleyo — ukusuka ekurekhodeni imithwalo yokupholisa nasekumiseleni ubungakanani belanga laseluphahleni ukuya ekudibaniseni ngaphandle kokuphazamiseka i-BESS nejenereyitha? Qhagamshelana nenkampani KRL Power ukuze ufumane uhlolo lobunjineli nesiphakamiso seprojekthi.

Inqaku lobunjineli: Imilinganiselo eqikelelwayo kwesi sikhokelo yeyokuvavanya kuphela ukuba iprojekthi inokwenzeka na ekuqaleni. Ukhetho lokugqibela lwe-BESS ne-PCS kufuneka lusekelwe kubalo lomthwalo wobushushu besikhenkcisi, kwii-ampere zerotor etshixekileyo (LRA) ezikwipleyiti yegama yecompressor, kuhlobo lodibaniso lwesiqalisi nakwiiprofayili zomthwalo ezirekhodwe ngamathuba emizuzu eli-15.

Thumela umbuzo wakho namhlanje

Fumana isisombululo sakho samandla esilungiselelwe wena kwiiyure ezingama-24.

Yeka ukuhlawulela iinkcitho zophawu. Sebenzisana ngqo nomzi-mveliso wemithombo oneminyaka engama-20.

KRL Power — Umthombo Wemveliso Ngasemva KweeProjekthi Zamandla Zehlabathi

Ityelelwe ehlabathini lonke:

UL, CE, IEC, UN38.3

Iimodeli ezithandwayo:

B65 · B100 · B241 · B26LL · B61LL · B522L · B2M6L

Izicelo:

Iifektri · Iifama zelanga · Ezemigodi · IiZiqithi · Iziko ledatha

Sixelele ngeprojekthi yakho — siza kukuyilela inkqubo.