{"id":5238,"date":"2026-06-16T07:08:32","date_gmt":"2026-06-16T07:08:32","guid":{"rendered":"https:\/\/www.kmdpower.com\/?p=5238"},"modified":"2026-06-16T07:08:34","modified_gmt":"2026-06-16T07:08:34","slug":"how-to-expand-48v-sodium-ion-battery-storage-without-soc-imbalance","status":"publish","type":"post","link":"https:\/\/www.kmdpower.com\/cs\/news\/how-to-expand-48v-sodium-ion-battery-storage-without-soc-imbalance\/","title":{"rendered":"Jak roz\u0161\u00ed\u0159it \u00falo\u017ei\u0161t\u011b 48V sod\u00edko-iontov\u00fdch bateri\u00ed bez naru\u0161en\u00ed rovnov\u00e1hy stavu nabit\u00ed (SOC)"},"content":{"rendered":"

Rozbalen\u00ed a 48V sod\u00edko-iontov\u00fd akumula\u010dn\u00ed syst\u00e9m<\/a><\/strong> Nejde jen o to, p\u0159idat dal\u0161\u00ed akumul\u00e1torovou sadu paraleln\u011b. V\u00edce sad m\u016f\u017ee prodlou\u017eit dobu z\u00e1lohov\u00e1n\u00ed, ale m\u016f\u017ee tak\u00e9 zp\u016fsobit nerovnov\u00e1hu stavu nabit\u00ed (SOC), nerovnom\u011brn\u00e9 rozlo\u017een\u00ed proudu, p\u0159ed\u010dasn\u00e9 spu\u0161t\u011bn\u00ed ochrany BMS, nep\u0159esn\u00e9 zobrazen\u00ed doby provozu a obt\u00ed\u017en\u00e9 zotaven\u00ed po hlubok\u00e9m vybit\u00ed.<\/p>

Vzhledem k tomu, \u017ee se sod\u00edkov\u00e9 baterie li\u0161\u00ed od olov\u011bn\u00fdch nebo LiFePO4 bateri\u00ed v oblasti nap\u011b\u0165ov\u00e9 k\u0159ivky, mapov\u00e1n\u00ed stavu nabit\u00ed (SOC), nab\u00edjen\u00ed p\u0159i n\u00edzk\u00fdch teplot\u00e1ch a logiky syst\u00e9mu BMS, neznamen\u00e1 ozna\u010den\u00ed \u201epodpora 48V baterie\u201c v\u017edy, \u017ee je syst\u00e9m p\u0159ipraven na roz\u0161\u00ed\u0159en\u00ed.<\/p>

Kl\u00ed\u010dovou ot\u00e1zkou je, zda v\u00e1\u0161 roz\u0161\u00ed\u0159en\u00fd akumul\u00e1torov\u00fd syst\u00e9m dok\u00e1\u017ee nab\u00edjet, vyb\u00edjet, signalizovat poruchu, omezovat v\u00fdkon a obnovovat funk\u010dnost jako jeden koordinovan\u00fd syst\u00e9m.<\/p>

\"\"<\/figure>

Sod\u00edkov\u00e1 iontov\u00e1 baterie Kamada Power 48 V, 200 Ah, 10 kWh<\/a><\/strong><\/p>

Za\u010dn\u011bte se st\u00e1vaj\u00edc\u00edmi hranicemi syst\u00e9mu<\/h2>

Ne\u017e budete roz\u0161i\u0159ovat kapacitu, nejprve si ujasn\u011bte, jak vlastn\u011b funguje v\u00e1\u0161 st\u00e1vaj\u00edc\u00ed 48V syst\u00e9m.<\/p>

Lehk\u00e1 z\u00e1lo\u017en\u00ed baterie se li\u0161\u00ed od bateriov\u00e9ho modulu p\u0159ipojen\u00e9ho k m\u011bni\u010di, telekomunika\u010dn\u00edmu usm\u011br\u0148ova\u010di, sol\u00e1rn\u00edmu syst\u00e9mu mimo s\u00ed\u0165, nap\u00e1jec\u00edmu syst\u00e9mu pro obytn\u00e1 vozidla, mobiln\u00ed v\u011b\u017ei CCTV, skladov\u00e9mu za\u0159\u00edzen\u00ed nebo pr\u016fmyslov\u00e9mu odb\u011bru.<\/p>

V\u00e1\u0161 projekt m\u016f\u017ee vy\u017eadovat del\u0161\u00ed dobu z\u00e1lohov\u00e1n\u00ed, vy\u0161\u0161\u00ed \u0161pi\u010dkov\u00fd proud, lep\u0161\u00ed zotaven\u00ed p\u0159i n\u00edzk\u00fdch teplot\u00e1ch nebo del\u0161\u00ed v\u00fddr\u017e b\u011bhem zamra\u010den\u00fdch dn\u016f. Je v\u0161ak mo\u017en\u00e9, \u017ee kapacita baterie nebude pro v\u00e1\u0161 syst\u00e9m v\u016fbec limituj\u00edc\u00edm faktorem. Omezen\u00edm m\u016f\u017ee b\u00fdt nab\u00edje\u010dka, m\u011bni\u010d, veden\u00ed kabel\u016f, nastaven\u00ed ochrany nebo proudov\u00e9 omezen\u00ed syst\u00e9mu BMS.<\/p>

Proto by se p\u0159i roz\u0161i\u0159ov\u00e1n\u00ed m\u011blo vych\u00e1zet ze skute\u010dn\u00fdch limit\u016f syst\u00e9mu, a ne pouze z touhy po v\u011bt\u0161\u00edm po\u010dtu Ah.<\/p>

Pokud se v\u00e1\u0161 st\u0159\u00edda\u010d vypne kv\u016fli poklesu nap\u011bt\u00ed, dal\u0161\u00ed bateriov\u00fd modul m\u016f\u017ee pomoci pouze v p\u0159\u00edpad\u011b, \u017ee se zlep\u0161\u00ed rozlo\u017een\u00ed proudu. Pokud va\u0161e nab\u00edje\u010dka nedok\u00e1\u017ee bateriov\u00fd blok po hlubok\u00e9m vybit\u00ed znovu nab\u00edt, p\u0159id\u00e1n\u00ed dal\u0161\u00edch modul\u016f m\u016f\u017ee obnovu zpomalit. Pokud u jednoho modulu ji\u017e d\u0159\u00edve dojde k aktivaci ochrany, roz\u0161\u00ed\u0159en\u00ed syst\u00e9mu m\u016f\u017ee tento probl\u00e9m pouze zamaskovat, m\u00edsto aby jej vy\u0159e\u0161ilo.<\/p>

P\u0159ed schv\u00e1len\u00edm by m\u011bl v\u00e1\u0161 dodavatel bateri\u00ed prov\u011b\u0159it model baterie, st\u00e1\u0159\u00ed bateriov\u00e9ho modulu, model nab\u00edje\u010dky nebo m\u011bni\u010de, nastaven\u00ed nab\u00edjen\u00ed, \u0161pi\u010dkov\u00e9 zat\u00ed\u017een\u00ed, rozvod kabel\u00e1\u017ee, teplotn\u00ed rozsah, komunika\u010dn\u00ed po\u017eadavky a c\u00edlovou dobu z\u00e1lohy.<\/p>

Nerovnov\u00e1ha SOC obvykle za\u010d\u00edn\u00e1 je\u0161t\u011b p\u0159ed instalac\u00ed nov\u00e9ho bal\u00ed\u010dku<\/h2>

K naru\u0161en\u00ed rovnov\u00e1hy SOC nemus\u00ed doj\u00edt v\u017edy a\u017e po n\u011bkolika m\u011bs\u00edc\u00edch pou\u017e\u00edv\u00e1n\u00ed. M\u016f\u017ee k n\u011bmu doj\u00edt ji\u017e prvn\u00ed den po instalaci.<\/p>

Pokud je nov\u00fd akumul\u00e1tor p\u0159ipojen p\u0159i jin\u00e9m nap\u011bt\u00ed nebo jin\u00e9m stavu nabit\u00ed (SOC) ne\u017e st\u00e1vaj\u00edc\u00ed akumul\u00e1tor, m\u016f\u017ee mezi akumul\u00e1tory prot\u00e9kat vyrovn\u00e1vac\u00ed proud. Tento proud nen\u00ed v\u017edy \u0159\u00edzen nab\u00edje\u010dkou a m\u016f\u017ee obej\u00edt b\u011b\u017en\u00fd nab\u00edjec\u00ed re\u017eim, kter\u00fd o\u010dek\u00e1v\u00e1 syst\u00e9m BMS.<\/p>

To je obzvl\u00e1\u0161t\u011b riskantn\u00ed v p\u0159\u00edpad\u011b, \u017ee se k star\u0161\u00ed 48V bateriov\u00e9 sestav\u011b p\u0159id\u00e1 nov\u00fd akumul\u00e1tor.<\/p>

St\u00e1vaj\u00edc\u00ed baterie mohla zest\u00e1rnout, mohlo doj\u00edt k odchylce v odhadu stavu nabit\u00ed (SOC) nebo se u n\u00ed mohl zv\u00fd\u0161it vnit\u0159n\u00ed odpor. Nov\u00e1 baterie m\u016f\u017ee m\u00edt tak\u00e9 odli\u0161n\u00fd firmware, kalibraci, chov\u00e1n\u00ed dan\u00e9 \u0161ar\u017ee \u010dl\u00e1nk\u016f nebo historii skladov\u00e1n\u00ed.<\/p>

Stejn\u00e9 jmenovit\u00e9 nap\u011bt\u00ed neznamen\u00e1 stejn\u00fd provozn\u00ed stav.<\/p>

Bezpe\u010dn\u011bj\u0161\u00ed strategi\u00ed je nastavit bateriov\u00e9 moduly na kompatibiln\u00ed rozsah nap\u011bt\u00ed a stavu nabit\u00ed (SOC) v souladu s pravidly dodavatele pro paraleln\u00ed zapojen\u00ed. V\u00e1\u0161 dodavatel by tak\u00e9 m\u011bl potvrdit, zda je mo\u017en\u00e9 paraleln\u011b zapojit star\u00e9 a nov\u00e9 bateriov\u00e9 moduly, moduly z r\u016fzn\u00fdch \u0161ar\u017e\u00ed nebo s r\u016fzn\u00fdmi verzemi syst\u00e9mu BMS.<\/p>

U 48V sod\u00edko-iontov\u00fdch syst\u00e9m\u016f neschvalujte roz\u0161\u00ed\u0159en\u00ed pouze na z\u00e1klad\u011b toho, \u017ee ob\u011b baterie jsou ozna\u010deny jako \u201e48V\u201c. Nab\u00edjec\u00ed nap\u011bt\u00ed, proudov\u00fd limit, pravidla nab\u00edjen\u00ed v z\u00e1vislosti na teplot\u011b, mez pro ukon\u010den\u00ed vyb\u00edjen\u00ed, logika probuzen\u00ed a komunikace mus\u00ed odpov\u00eddat ov\u011b\u0159en\u00fdm limit\u016fm bateriov\u00e9ho modulu.<\/p>

Rozd\u011blen\u00ed proudu z\u00e1vis\u00ed na odporu, nikoli na dobr\u00fdch \u00famyslech<\/h2>

V paraleln\u011b zapojen\u00e9 bateriov\u00e9 sestav\u011b se proud nerozd\u011bl\u00ed rovnom\u011brn\u011b jen proto, \u017ee bateriov\u00e9 bloky maj\u00ed uvedeno stejn\u00e9 nap\u011bt\u00ed.<\/p>

Proud te\u010de cestou s ni\u017e\u0161\u00edm odporem. Tuto cestu ovliv\u0148uj\u00ed vnit\u0159n\u00ed odpor, d\u00e9lka kabelu, svorky, konstrukce sb\u011brnic, konektory, pojistky, styka\u010de, teplota, stav nabit\u00ed (SOC) a chov\u00e1n\u00ed syst\u00e9mu BMS.<\/p>

Sada s cestou s ni\u017e\u0161\u00edm odporem m\u016f\u017ee v\u00e9st v\u011bt\u0161\u00ed vyb\u00edjec\u00ed proud a p\u0159ij\u00edmat v\u011bt\u0161\u00ed nab\u00edjec\u00ed proud. V pr\u016fb\u011bhu \u010dasu je takov\u00e1 sada zat\u011b\u017eov\u00e1na v\u00edce ne\u017e ostatn\u00ed.<\/p>

U 48V sod\u00edko-iontov\u00fdch bateriov\u00fdch blok\u016f je symetrie kabel\u00e1\u017ee sou\u010d\u00e1st\u00ed konstrukce syst\u00e9mu. Pokud m\u00e1 jeden blok krat\u0161\u00ed kabel\u00e1\u017e, \u010dist\u0161\u00ed konektor, ni\u017e\u0161\u00ed odpor pojistky nebo lep\u0161\u00ed kontakt na svork\u00e1ch, m\u016f\u017ee n\u00e9st v\u011bt\u0161\u00ed z\u00e1t\u011b\u017e, i kdy\u017e se jedn\u00e1 o jedinou bateriovou banku.<\/p>

D\u016fsledky mohou b\u00fdt z\u00e1va\u017en\u00e9. Jedna baterie dos\u00e1hne ni\u017e\u0161\u00edho stavu nabit\u00ed (SOC) rychleji, p\u0159ejde do ochrann\u00e9ho re\u017eimu d\u0159\u00edve a t\u00edm p\u0159ibl\u00ed\u017e\u00ed zb\u00fdvaj\u00edc\u00ed baterie k jejich vlastn\u00edm limit\u016fm.<\/p>

P\u0159i roz\u0161i\u0159ov\u00e1n\u00ed syst\u00e9mu by se nem\u011blo kontrolovat pouze nap\u011bt\u00ed a kapacita v Ah. M\u011bla by se zkontrolovat tak\u00e9 konfigurace zapojen\u00ed, pr\u016f\u0159ez kabel\u016f, konstrukce sb\u011brnic, pojistky, svorky a teplotn\u00ed podm\u00ednky.<\/p>

Nejt\u011b\u017e\u0161\u00ed je p\u0159idat nov\u00fd bal\u00ed\u010dek do star\u00e9 banky<\/h2>

Nejjednodu\u0161\u0161\u00edm zp\u016fsobem roz\u0161\u00ed\u0159en\u00ed je p\u0159id\u00e1n\u00ed stejn\u00fdch bateriov\u00fdch blok\u016f na za\u010d\u00e1tku projektu. Nejt\u011b\u017e\u0161\u00edm zp\u016fsobem roz\u0161\u00ed\u0159en\u00ed je p\u0159id\u00e1n\u00ed nov\u00e9ho bateriov\u00e9ho bloku ke star\u0161\u00ed bateriov\u00e9 soustav\u011b.<\/p>

Nov\u00e9 a star\u00e9 baterie se mohou li\u0161it v oblasti vyu\u017eiteln\u00e9 kapacity, vnit\u0159n\u00edho odporu, odhadu stavu nabit\u00ed (SOC), rychlosti samovyb\u00edjen\u00ed, firmwaru syst\u00e9mu BMS, chov\u00e1n\u00ed p\u0159i vyva\u017eov\u00e1n\u00ed, teplotn\u00ed historie a historie cykl\u016f.<\/p>

Star\u0161\u00ed baterie m\u016f\u017ee d\u0159\u00edve dos\u00e1hnout stavu ochrany proti n\u00edzk\u00e9mu nap\u011bt\u00ed. Nov\u00e1 baterie m\u016f\u017ee n\u00e9st v\u011bt\u0161\u00ed z\u00e1t\u011b\u017e. Hodnoty stavu nabit\u00ed (SOC) na \u00farovni baterie se ji\u017e nemus\u00ed shodovat.<\/p>

To neznamen\u00e1, \u017ee roz\u0161\u00ed\u0159en\u00ed nen\u00ed mo\u017en\u00e9. Znamen\u00e1 to, \u017ee kompatibilitu je t\u0159eba br\u00e1t jako omezen\u00ed p\u0159i n\u00e1vrhu.<\/p>

Standardn\u00ed roz\u0161\u00ed\u0159en\u00ed je vhodn\u011bj\u0161\u00ed v p\u0159\u00edpad\u011b, \u017ee se jedn\u00e1 o bateriov\u00e9 moduly stejn\u00e9ho typu, s identickou nap\u011b\u0165ovou platformou, verz\u00ed BMS, podobn\u00fdm st\u00e1\u0159\u00edm, podobn\u00fdm stavem nabit\u00ed (SOC) a jsou zapojeny pomoc\u00ed kabel\u00e1\u017ee schv\u00e1len\u00e9 dodavatelem.<\/p>

Individu\u00e1ln\u00ed posouzen\u00ed je bezpe\u010dn\u011bj\u0161\u00ed v p\u0159\u00edpadech, kdy jsou sm\u00ed\u0161eny star\u00e9 a nov\u00e9 bateriov\u00e9 moduly, li\u0161\u00ed se kapacita, firmware nebo protokoly, nebo je syst\u00e9m vyu\u017e\u00edv\u00e1n pro vysok\u00e9 z\u00e1t\u011b\u017ee st\u0159\u00edda\u010d\u016f, nab\u00edjen\u00ed za studena, vzd\u00e1len\u00e9 z\u00e1lohov\u00e1n\u00ed, telekomunika\u010dn\u00ed sk\u0159\u00edn\u011b \u010di pr\u016fmyslov\u00fd provoz.<\/p>

Limity syst\u00e9mu BMS mohou zp\u016fsobit postupnou ztr\u00e1tu kapacity<\/h2>

Ka\u017ed\u00e1 sod\u00edko-iontov\u00e1 baterie m\u00e1 sv\u00e9 vlastn\u00ed ochrann\u00e9 limity syst\u00e9mu BMS. To je nezbytn\u00e9 z bezpe\u010dnostn\u00edch d\u016fvod\u016f, av\u0161ak p\u0159i paraleln\u00edm provozu to m\u016f\u017ee tak\u00e9 v\u00e9st k chov\u00e1n\u00ed na \u00farovni cel\u00e9ho syst\u00e9mu, kter\u00e9 byste mo\u017en\u00e1 ne\u010dekali.<\/p>

Pokud u n\u011bkter\u00e9ho z modul\u016f dojde jako prvn\u00ed k aktivaci ochrany proti n\u00edzk\u00e9mu nap\u011bt\u00ed, nadproudov\u00e9 ochrany, zablokov\u00e1n\u00ed nab\u00edjen\u00ed z d\u016fvodu n\u00edzk\u00e9 teploty, sn\u00ed\u017een\u00ed v\u00fdkonu z d\u016fvodu vysok\u00e9 teploty nebo komunika\u010dn\u00edho alarmu, m\u016f\u017ee doj\u00edt k jeho odpojen\u00ed nebo omezen\u00ed dostupnosti.<\/p>

Jakmile jedna skupina vypadne, zb\u00fdvaj\u00edc\u00ed skupiny nesou v\u011bt\u0161\u00ed z\u00e1t\u011b\u017e. To je m\u016f\u017ee p\u0159iv\u00e9st bl\u00ed\u017ee k jejich vlastn\u00edm limit\u016fm a zp\u016fsobit, \u017ee banka bude postupn\u011b ztr\u00e1cet kapacitu.<\/p>

M\u016f\u017eete o\u010dek\u00e1vat jednu velkou bateriovou banku. Ve skute\u010dnosti se v\u0161ak syst\u00e9m m\u016f\u017ee chovat jako n\u011bkolik samostatn\u00fdch bateriov\u00fdch blok\u016f, kter\u00e9 se postupn\u011b p\u0159ipojuj\u00ed a odpojuj\u00ed.<\/p>

Pokud m\u011bni\u010d, nab\u00edje\u010dka nebo regul\u00e1tor nerozpozn\u00e1 stav dostupnosti na \u00farovni bateriov\u00e9ho modulu, m\u016f\u017ee doj\u00edt k p\u0159ed\u010dasn\u00e9mu vypnut\u00ed bateriov\u00e9 banky nebo k matouc\u00edmu chov\u00e1n\u00ed indik\u00e1toru stavu nabit\u00ed (SOC).<\/p>

Toto riziko se zvy\u0161uje p\u0159i vysok\u00e9m zat\u00ed\u017een\u00ed st\u0159\u00edda\u010de, n\u00edzk\u00e9m stavu nabit\u00ed (SOC), n\u00edzk\u00fdch teplot\u00e1ch, dlouh\u00fdch kabelov\u00fdch tras\u00e1ch a p\u0159i sm\u00ed\u0161en\u00e9 historii akumul\u00e1torov\u00e9ho modulu.<\/p>

Spolehliv\u00fd roz\u0161\u00ed\u0159en\u00fd syst\u00e9m by m\u011bl bezpe\u010dn\u011b pokra\u010dovat v \u010dinnosti, spr\u00e1vn\u011b se zotavit a uk\u00e1zat, kter\u00fd bal\u00ed\u010dek ud\u00e1lost zp\u016fsobil.<\/p>

D\u016fv\u011bryhodnost displeje SOC se po roz\u0161\u00ed\u0159en\u00ed m\u016f\u017ee sn\u00ed\u017eit<\/h2>

SOC nen\u00ed v\u017edy jen jednoduch\u00e9 spole\u010dn\u00e9 \u010d\u00edslo v paraleln\u011b zapojen\u00e9 bateriov\u00e9 sestav\u011b.<\/p>

Ka\u017ed\u00fd akumul\u00e1tor m\u016f\u017ee odhadovat stav nabit\u00ed (SOC) pomoc\u00ed vlastn\u00edho algoritmu syst\u00e9mu \u0159\u00edzen\u00ed akumul\u00e1toru (BMS). Tento odhad z\u00e1vis\u00ed na nap\u011bt\u00ed, proudu, teplot\u011b, historii kalibrac\u00ed, dob\u011b v pohotovostn\u00edm re\u017eimu a p\u0159edchoz\u00edch cyklech.<\/p>

Po roz\u0161\u00ed\u0159en\u00ed m\u016f\u017ee v\u00e1\u0161 syst\u00e9m zobrazovat jednu souhrnnou hodnotu SOC, jednu hodnotu SOC hlavn\u00edho akumul\u00e1toru, jednu hodnotu SOC odhadnutou st\u0159\u00edda\u010dem nebo n\u011bkolik hodnot SOC na \u00farovni jednotliv\u00fdch akumul\u00e1tor\u016f. Tyto hodnoty se nemus\u00ed shodovat.<\/p>

Tento nesoulad nemus\u00ed v\u017edy znamenat, \u017ee jedna baterie je vadn\u00e1. M\u016f\u017ee b\u00fdt zp\u016fsoben odli\u0161nou histori\u00ed bateri\u00ed, rozd\u011blen\u00edm proudu, odchylkou m\u011b\u0159en\u00ed, ztr\u00e1tami v pohotovostn\u00edm re\u017eimu nebo omezen\u00edmi odhadu stavu nabit\u00ed (SOC).<\/p>

Hroz\u00ed provozn\u00ed nebezpe\u010d\u00ed.<\/p>

Pokud se na displeji zobrazuje vysok\u00e1 hodnota SOC, zat\u00edmco jeden akumul\u00e1tor se bl\u00ed\u017e\u00ed k aktivaci ochrann\u00e9ho re\u017eimu, m\u016f\u017ee doj\u00edt k p\u0159ed\u010dasn\u00e9mu selh\u00e1n\u00ed va\u0161eho syst\u00e9mu. Pokud se na displeji zobrazuje n\u00edzk\u00e1 hodnota, zat\u00edmco je je\u0161t\u011b k dispozici pou\u017eiteln\u00e1 energie, m\u016f\u017ee v\u00e1\u0161 syst\u00e9m pl\u00fdtvat kapacitou.<\/p>

Pokud m\u011bni\u010d obdr\u017e\u00ed nespr\u00e1vn\u00e9 \u00fadaje o stavu nabit\u00ed (SOC) nebo o omezen\u00ed proudu, m\u016f\u017ee doj\u00edt k nab\u00edjen\u00ed nebo vyb\u00edjen\u00ed bateriov\u00e9 banky zp\u016fsobem, kter\u00fd zv\u00fd\u0161\u00ed jej\u00ed nevyv\u00e1\u017eenost.<\/p>

Po rozta\u017een\u00ed by se hodnota SOC m\u011bla pova\u017eovat za syst\u00e9mov\u00fd odhad a ov\u011b\u0159it p\u0159i skute\u010dn\u00e9m nab\u00edjen\u00ed a vyb\u00edjen\u00ed; nelze se spol\u00e9hat pouze na \u00fadaj na displeji.<\/p>

Komunikace m\u016f\u017ee nerovnov\u00e1ze zabr\u00e1nit, nebo ji naopak zakr\u00fdt<\/h2>

Paraleln\u00ed 48V sod\u00edko-iontov\u00e1 bateriov\u00e1 banka m\u016f\u017ee fungovat jako jednoduch\u00e9 \u00falo\u017ei\u0161t\u011b energie zalo\u017een\u00e9 na nap\u011bt\u00ed nebo jako chyt\u0159ej\u0161\u00ed syst\u00e9m s komunikac\u00ed mezi jednotliv\u00fdmi bateriov\u00fdmi bloky \u010di mezi bateriov\u00fdm blokem a st\u0159\u00edda\u010dem.<\/p>

Komunikace je u\u017eite\u010dn\u00e1 pouze tehdy, pokud poskytuje informace o d\u016fle\u017eit\u00fdch provozn\u00edch parametrech, jako je stav nabit\u00ed baterie (SOC), nap\u011bt\u00ed, proud, teplota, alarmy, proudov\u00e9 limity a stav p\u0159ipojen\u00ed.<\/p>

Samotn\u00fd port CAN nebo RS485 je\u0161t\u011b nezaru\u010duje koordinaci. O tom, zda syst\u00e9m skute\u010dn\u011b rozum\u00ed tomu, co jednotliv\u00e9 bateriov\u00e9 moduly d\u011blaj\u00ed, rozhoduj\u00ed protokol, datov\u00e1 mapa, logika master-slave, nastaven\u00ed adres, chov\u00e1n\u00ed p\u0159i v\u00fdstrah\u00e1ch a kompatibilita s m\u011bni\u010di.<\/p>

Pro roz\u0161\u00ed\u0159en\u00ed by komunikace m\u011bla poskytovat odpov\u011bdi na praktick\u00e9 ot\u00e1zky: Kter\u00e9 bateriov\u00e9 moduly jsou p\u0159ipojeny? Kter\u00fd modul omezuje proud? Kter\u00fd modul dos\u00e1hl ochrann\u00e9ho limitu? Dost\u00e1v\u00e1 st\u0159\u00edda\u010d spr\u00e1vnou hodnotu limitu?<\/p>

Pokud v\u00e1\u0161 syst\u00e9m nedok\u00e1\u017ee na tyto ot\u00e1zky odpov\u011bd\u011bt, komunikace m\u016f\u017ee slou\u017eit pouze k zobrazen\u00ed informac\u00ed, nikoli ke skute\u010dn\u00e9mu ovl\u00e1d\u00e1n\u00ed.<\/p>

Komunikace m\u016f\u017ee pomoci vy\u0159e\u0161it nerovnov\u00e1hu, ale nem\u016f\u017ee nahradit spr\u00e1vn\u00fd elektrick\u00fd n\u00e1vrh. Dobr\u00e1 komunikace v kombinaci se \u0161patnou elektroinstalac\u00ed st\u00e1le vede k nekvalitn\u00edmu syst\u00e9mu.<\/p>

Po roz\u0161\u00ed\u0159en\u00ed je nutn\u00e9 znovu zkontrolovat nastaven\u00ed nab\u00edje\u010dky a m\u011bni\u010de<\/h2>

Zv\u00fd\u0161en\u00ed kapacity m\u011bn\u00ed zp\u016fsob nab\u00edjen\u00ed a vyb\u00edjen\u00ed va\u0161eho syst\u00e9mu.<\/p>

Nab\u00edje\u010dka m\u016f\u017ee po hlubok\u00e9m vybit\u00ed pot\u0159ebovat v\u00edce \u010dasu na dobit\u00ed roz\u0161\u00ed\u0159en\u00e9 bateriov\u00e9 sestavy. Pokud je nab\u00edjec\u00ed proud p\u0159\u00edli\u0161 n\u00edzk\u00fd, dob\u00edjen\u00ed se zpomal\u00ed. Pokud je nab\u00edjec\u00ed proud p\u0159\u00edli\u0161 vysok\u00fd pro jeden akumul\u00e1torov\u00fd blok nebo vzhledem k zp\u016fsobu rozd\u011blen\u00ed proudu v bateriov\u00e9 sestav\u011b, m\u016f\u017ee jeden syst\u00e9m BMS omezit nab\u00edjen\u00ed d\u0159\u00edve ne\u017e ostatn\u00ed.<\/p>

Pokud jedna baterie zablokuje nab\u00edjen\u00ed kv\u016fli n\u00edzk\u00e9 teplot\u011b nebo spust\u00ed ochrann\u00fd mechanismus, nab\u00edje\u010dka m\u016f\u017ee i p\u0159esto vn\u00edmat bateriovou sadu jako dostupnou. To m\u016f\u017ee nerovnov\u00e1hu je\u0161t\u011b zhor\u0161it.<\/p>

Je t\u0159eba zkontrolovat tak\u00e9 stranu st\u0159\u00edda\u010de. V\u011bt\u0161\u00ed bateriov\u00e1 banka sice m\u016f\u017ee umo\u017enit p\u0159ipojen\u00ed v\u011bt\u0161\u00edch z\u00e1t\u011b\u017e\u00ed, ale syst\u00e9m \u0159\u00edzen\u00ed baterie (BMS), kabely, pojistky, svorky, styka\u010de a nastaven\u00ed vyp\u00ednac\u00edho prahu st\u0159\u00edda\u010de se mo\u017en\u00e1 nezm\u011bnily.<\/p>

Vy\u0161\u0161\u00ed kapacita nemus\u00ed automaticky znamenat bezpe\u010dn\u011bj\u0161\u00ed v\u00fdbojov\u00fd proud.<\/p>

Pro 48V sod\u00edko-iontov\u00e9 baterie<\/a><\/strong>, neschvalujte roz\u0161\u00ed\u0159en\u00ed pouze na z\u00e1klad\u011b toho, \u017ee na st\u0159\u00edda\u010di je uvedeno \u201epodpora 48V bateri\u00ed\u201c. P\u0159ed roz\u0161\u00ed\u0159en\u00edm zkontrolujte nab\u00edjec\u00ed nap\u011bt\u00ed, limit nab\u00edjec\u00edho proudu, mezn\u00ed hodnotu vyb\u00edjen\u00ed, pravidla nab\u00edjen\u00ed p\u0159i n\u00edzk\u00fdch teplot\u00e1ch, logiku probuzen\u00ed syst\u00e9mu BMS, kompatibilitu komunikace, \u0161pi\u010dkov\u00fd zat\u011b\u017eovac\u00ed proud a jmenovitou hodnotu kabel\u016f \u010di pojistek.<\/p>

Sod\u00edkovo-iontov\u00e1 baterie<\/a><\/strong> Chov\u00e1n\u00ed nap\u011bt\u00ed, mapov\u00e1n\u00ed stavu nabit\u00ed (SOC), pravidla pro provoz p\u0159i n\u00edzk\u00fdch teplot\u00e1ch a limity syst\u00e9mu BMS se mohou li\u0161it od syst\u00e9m\u016f s olov\u011bn\u00fdmi bateriemi nebo LiFePO\u2084.<\/p>

Skute\u010dn\u00e9 hranice expanze<\/h2>

Spr\u00e1vn\u00e9 roz\u0161\u00ed\u0159en\u00ed na 48 V z\u00e1vis\u00ed na hranic\u00edch, kter\u00e9 skute\u010dn\u011b m\u011bn\u00ed chov\u00e1n\u00ed syst\u00e9mu.<\/p>

Mezi hlavn\u00ed omezen\u00ed pat\u0159\u00ed kompatibilita bateriov\u00fdch modul\u016f, odpor p\u0159ipojen\u00ed, koordinace s \u0159\u00eddic\u00edm syst\u00e9mem baterie (BMS), obnoven\u00ed nab\u00edje\u010dky, n\u00e1roky st\u0159\u00edda\u010de, teplotn\u00ed rozd\u00edl a komunika\u010dn\u00ed protokol.<\/p>

Pokud dojde ke zm\u011bn\u011b typu akumul\u00e1toru, firmwaru, odporu, zapojen\u00ed, proudov\u00e9ho omezen\u00ed, profilu nab\u00edje\u010dky nebo provozn\u00ed teploty, nem\u011bl by b\u00fdt v\u00e1\u0161 syst\u00e9m pova\u017eov\u00e1n za pouh\u00e9 roz\u0161\u00ed\u0159en\u00ed kapacity typu \u201eplug-in\u201c.<\/p>

V p\u0159\u00edpad\u011b va\u0161eho B2B projektu by m\u011bly b\u00fdt tyto parametry potvrzeny je\u0161t\u011b p\u0159ed vypracov\u00e1n\u00edm cenov\u00e9 nab\u00eddky. V opa\u010dn\u00e9m p\u0159\u00edpad\u011b se m\u016f\u017ee st\u00e1t, \u017ee obdr\u017e\u00edte vy\u0161\u0161\u00ed hodnotu Ah, zat\u00edmco v\u00e1\u0161 projekt ve skute\u010dnosti vy\u017eaduje odli\u0161nou strategii BMS, sch\u00e9ma zapojen\u00ed, nastaven\u00ed nab\u00edje\u010dky nebo revizi syst\u00e9mu.<\/p>

Standardn\u00ed roz\u0161\u00ed\u0159en\u00ed funguje pouze za kontrolovan\u00fdch podm\u00ednek<\/h2>

Standardn\u00ed expanze m\u016f\u017ee fungovat za kontrolovan\u00fdch podm\u00ednek.<\/p>

Bateriov\u00e9 sady by m\u011bly b\u00fdt zpravidla stejn\u00e9ho modelu, stejn\u00e9 nap\u011b\u0165ov\u00e9 platformy, stejn\u00e9 verze BMS, podobn\u00e9ho st\u00e1\u0159\u00ed, podobn\u00e9ho stavu nabit\u00ed (SOC) a m\u011bly by b\u00fdt nainstalov\u00e1ny s paraleln\u00edm zapojen\u00edm schv\u00e1len\u00fdm dodavatelem.<\/p>

Je to tak\u00e9 snaz\u0161\u00ed, pokud je zat\u00ed\u017een\u00ed m\u00edrn\u00e9, nastaven\u00ed nab\u00edje\u010dky je spr\u00e1vn\u011b nastaveno, teplota je regulov\u00e1na, je k dispozici monitorov\u00e1n\u00ed stavu akumul\u00e1torov\u00e9ho modulu a komunikace s m\u011bni\u010dem je ov\u011b\u0159ena.<\/p>

Technicky propracovan\u011bj\u0161\u00ed roz\u0161\u00ed\u0159en\u00ed je bezpe\u010dn\u011bj\u0161\u00ed, pokud syst\u00e9m vyu\u017e\u00edv\u00e1 vysok\u00e1 zat\u00ed\u017een\u00ed st\u0159\u00edda\u010d\u016f, nab\u00edjen\u00ed za studena, dlouh\u00e9 kabelov\u00e9 trasy, star\u0161\u00ed akumul\u00e1torov\u00e9 sady, sm\u00ed\u0161en\u00e9 s\u00e9rie akumul\u00e1torov\u00fdch sad, d\u00e1lkov\u00e9 ovl\u00e1d\u00e1n\u00ed, telekomunika\u010dn\u00ed sk\u0159\u00edn\u011b, rekuperaci sol\u00e1rn\u00ed energie nebo \u0159\u00edzen\u00ed zalo\u017een\u00e9 na komunikaci.<\/p>

Tyto podm\u00ednky neznamenaj\u00ed, \u017ee by roz\u0161\u00ed\u0159en\u00ed 48V sod\u00edko-iontov\u00fdch syst\u00e9m\u016f nebylo vhodn\u00e9. Znamenaj\u00ed v\u0161ak, \u017ee ne\u0159\u00edzen\u00fd rozvoj je riskantn\u00ed.<\/p>

Rozd\u00edl nespo\u010d\u00edv\u00e1 v tom, zda lze tyto akumul\u00e1tory teoreticky zapojit paraleln\u011b. Rozd\u00edl spo\u010d\u00edv\u00e1 v tom, zda byla va\u0161e roz\u0161\u00ed\u0159en\u00e1 bateriov\u00e1 sestava ov\u011b\u0159ena jako jeden 48V akumul\u00e1torov\u00fd syst\u00e9m.<\/p>

Standardn\u00ed roz\u0161\u00ed\u0159en\u00ed se obvykle nedoporu\u010duje, pokud jsou v syst\u00e9mu kombinov\u00e1ny r\u016fzn\u00e9 zna\u010dky nebo kapacity, star\u00e9 a nov\u00e9 bateriov\u00e9 moduly maj\u00ed velmi odli\u0161nou historii cykl\u016f, firmware syst\u00e9mu BMS se li\u0161\u00ed, nen\u00ed zn\u00e1m profil nab\u00edjen\u00ed st\u0159\u00edda\u010de nebo pokud syst\u00e9m pracuje bez dozoru v chladn\u00e9m po\u010das\u00ed.<\/p>

Ov\u011b\u0159ujte moment nerovnov\u00e1hy, nejen p\u0159idanou kapacitu<\/h2>

Roz\u0161\u00ed\u0159en\u00ed o 48V sod\u00edko-iontov\u00fd akumul\u00e1tor by nem\u011blo b\u00fdt schv\u00e1leno pouze proto, \u017ee nap\u011bt\u00ed po p\u0159ipojen\u00ed vypad\u00e1 spr\u00e1vn\u011b.<\/p>

Validace by se m\u011bla zam\u011b\u0159it na situace, kdy doch\u00e1z\u00ed k nerovnov\u00e1ze: prvn\u00ed paraleln\u00ed p\u0159ipojen\u00ed, vyb\u00edjen\u00ed p\u0159i vysok\u00e9m zat\u00ed\u017een\u00ed, provoz s n\u00edzk\u00fdm stavem nabit\u00ed (SOC), dob\u00edjen\u00ed po hlubok\u00e9m vybit\u00ed, dob\u00edjen\u00ed za studena, spu\u0161t\u011bn\u00ed ochrann\u00e9ho re\u017eimu u jednoho akumul\u00e1toru, v\u00fdpadek komunikace a obnoven\u00ed provozu po odpojen\u00ed \u010d\u00e1sti akumul\u00e1tor\u016f.<\/p>

\u201e\u010cist\u00fd\u201c v\u00fdsledek znamen\u00e1, \u017ee sd\u00edlen\u00ed proudu se dr\u017e\u00ed v zam\u00fd\u0161len\u00e9m rozmez\u00ed, nab\u00edje\u010dka dopl\u0148uje bateriov\u00fd blok podle o\u010dek\u00e1v\u00e1n\u00ed, hodnoty SOC z\u016fst\u00e1vaj\u00ed v p\u0159ijateln\u00e9m rozmez\u00ed a syst\u00e9m dok\u00e1\u017ee vysv\u011btlit, co se stalo, pokud dojde k odpojen\u00ed jednoho akumul\u00e1toru.<\/p>

Pro schv\u00e1len\u00ed projektu zkontrolujte p\u0159ed p\u0159ipojen\u00edm nap\u011bt\u00ed a stav nabit\u00ed (SOC), symetrii kabel\u016f, po\u010d\u00e1te\u010dn\u00ed proud, rozlo\u017een\u00ed proudu, chov\u00e1n\u00ed p\u0159i vysok\u00e9m zat\u00ed\u017een\u00ed, chov\u00e1n\u00ed p\u0159i n\u00edzk\u00e9m stavu nabit\u00ed (SOC), dob\u00edjen\u00ed po spu\u0161t\u011bn\u00ed ochrany, povolen\u00ed nab\u00edjen\u00ed p\u0159i n\u00edzk\u00fdch teplot\u00e1ch, alarmy a obnoven\u00ed po odpojen\u00ed jednoho modulu.<\/p>

Z\u00e1v\u011br<\/h2>

Roz\u0161i\u0159ov\u00e1n\u00ed 48V sod\u00edko-iontov\u00e1 baterie<\/a><\/strong> Ukl\u00e1d\u00e1n\u00ed energie bez naru\u0161en\u00ed rovnov\u00e1hy SOC vy\u017eaduje v\u00edce ne\u017e jen p\u0159ipojen\u00ed dal\u0161\u00edho akumul\u00e1toru do paraleln\u00edho zapojen\u00ed.<\/p>

P\u0159ed roz\u0161\u00ed\u0159en\u00edm je t\u0159eba porovnat nap\u011bt\u00ed bal\u00ed\u010dku, stav nabit\u00ed (SOC), model, firmware, st\u00e1\u0159\u00ed, odpor zapojen\u00ed, limity syst\u00e9mu BMS, nastaven\u00ed nab\u00edje\u010dky, n\u00e1roky m\u011bni\u010de, teplotn\u00ed podm\u00ednky a komunika\u010dn\u00ed logiku.<\/p>

U projekt\u016f t\u00fdkaj\u00edc\u00edch se 48V akumul\u00e1tor\u016f, Kontakt Kamada Power<\/a><\/strong> s ohledem na model baterie, po\u010det bateriov\u00fdch modul\u016f, model st\u0159\u00edda\u010de, nastaven\u00ed nab\u00edje\u010dky, uspo\u0159\u00e1d\u00e1n\u00ed kabel\u00e1\u017ee, provozn\u00ed teplotu, p\u0159\u00edkon z\u00e1t\u011b\u017ee, komunika\u010dn\u00ed po\u017eadavky a po\u017eadovanou dobu z\u00e1lohy. N\u00e1\u0161 t\u00fdm technik\u016f v\u00e1m pom\u016f\u017ee ov\u011b\u0159it, zda je vhodn\u011bj\u0161\u00ed standardn\u00ed paraleln\u00ed roz\u0161\u00ed\u0159en\u00ed, nebo zda je bezpe\u010dn\u011bj\u0161\u00ed \u0159e\u0161en\u00ed na b\u00e1zi sod\u00edko-iontov\u00fdch bateri\u00ed koordinovan\u00e9 syst\u00e9mem BMS na m\u00edru.<\/p>

<\/p>","protected":false},"excerpt":{"rendered":"

Roz\u0161\u00ed\u0159en\u00ed 48V sod\u00edko-iontov\u00e9ho akumul\u00e1torov\u00e9ho syst\u00e9mu neznamen\u00e1 pouze p\u0159ipojen\u00ed dal\u0161\u00edho akumul\u00e1toru do paraleln\u00edho zapojen\u00ed. V\u00edce bateriov\u00fdch modul\u016f m\u016f\u017ee prodlou\u017eit dobu z\u00e1lohy, ale m\u016f\u017ee tak\u00e9 zp\u016fsobit nerovnov\u00e1hu SOC, nerovnom\u011brn\u00e9 rozlo\u017een\u00ed proudu, p\u0159ed\u010dasnou ochranu BMS, nep\u0159esn\u00e9 zobrazen\u00ed doby provozu a obt\u00ed\u017en\u00e9 zotaven\u00ed po hlubok\u00e9m vybit\u00ed. Proto\u017ee se sod\u00edkov\u00e9 baterie li\u0161\u00ed od olov\u011bn\u00fdch nebo LiFePO4 v nap\u011b\u0165ov\u00e9 k\u0159ivce, mapov\u00e1n\u00ed SOC, n\u00edzk\u00fdch teplot\u00e1ch\u2026<\/p>","protected":false},"author":1,"featured_media":4481,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_lock_modified_date":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[19,26],"tags":[],"class_list":["post-5238","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news_catalog","category-product-news"],"_links":{"self":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts\/5238","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/comments?post=5238"}],"version-history":[{"count":1,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts\/5238\/revisions"}],"predecessor-version":[{"id":5239,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts\/5238\/revisions\/5239"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/media\/4481"}],"wp:attachment":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/media?parent=5238"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/categories?post=5238"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/tags?post=5238"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}