Tau hkrau tsun da ai gram lajang ai lam ngu ai gaw hpa rai kun?

Predictive maintenance ngu ai gaw, manu dan ai manghkang ni de n byin shi yang, battery manghkang ni hpe rim la ai lachyum re. Dai myit masa gaw dut shabra ai shara ni hta grai law hkra htingnut mat wa ai, raitim, bungli majing gaw voltage curve ni hpe yu nna, shanhte a sadi jaw ai lam ni gaw jahpawt hkying 3 hta hpa majaw matut manoi gap nga ai ngu ai hpe na a BMS dut ai wa hte ndang kalang hkat ai lam lawm ai.

Lithium-ion cell ni gaw akajawng sha n si mat ai. Shanhte gaw sadi jaw ai lam ni jaw ma ai. Trick gaw hpa hpe tam ra ai hpe chye ai.

Cell langai a atsam sum mat ai shaloi, shi a htingbu ni hte shingdaw yang, charge masa langai sha hta, voltage yawm ai hpe madun hpang na re. Shawng nnan hta 20 millivolt rai na re. Pack-level data hpe sha yu ai rai yang, n lu hti na matu loi ai. Shata masum na ai hpang dai gap gaw 80 millivolts rai nna ya gaw nang hta thermal management bawnu machyi ai lam nga ai hpa majaw nga yang cell langai gaw kaga ni hta grau nna bungli galaw nga ai.

Kata na ninghkap ai lam creep gaw kaga kaba langai mi rai nga ai. Anhte gaw lai wa sai shaning na hka lim ai aten hta mali ning tup galaw wa sai grid shingbyi shara kaw na module langai hpe shaw la ga ai. Laika ntsa e cell ni gaw kaja ai hku mu lu ai. Capacity gaw 84% kaw naw nga ai. Raitim DC kata na n-gun gaw 1.2 milliohms kaw nna 2.8 milliohms de lung wa sai. Dai module gaw, frequency regulation shaga ai hpe system htai ai shaloi, shi a htingbu ni de katsi ai hpe jahkrat ya nga ai.

Li-ion motion during the charge (a) and discharge (b) process.

Battery hpe hkang ai ladat shagu gaw, n-gun, n-gun, n-gun n-gun ni hpe shinggyin la lu ai. Dai daw gaw loi ai. Akyu rawng ai lam ni gaw aten ladaw ni na wa ai hte maren dai data hpe nang hpa galaw ai kaw na pru wa ai.

Capacity fade rate gaw hkum tsup ai atsam hta grau nna tsun dan ai. Laning mi hta 100% kaw nna 94% de hkrat sum nna, lahkawng ning hta 91% de hkrat sum mat ai cell langai gaw, shingra tara hku galaw nga ai. Shata shi matsat tup 97% kaw tawn da nna, shata masum laman 88% de hkrat sum mat ai cell langai a kata kaw lama ma n kaja ai lam nga ai. Lama na, galaw shapraw ai hta n kaja ai lam langai hpe hpang jahtum rim la lu ai rai yang. Lama na, HVAC system hpe gram lajang na matu hkrat sum mat ai shaloi, katsi ai aten hta shat shadu mat ai rai yang.

Coulombic efficiency gaw, chyahkring hkring shingjawng ai cell ni a matu ahkyak ai. Grid shingbyi shara ni gaw laning mi hta 300 lang cycle hpe mu lu na re. EV fast charging hub gaw cell ni hpe 500 (sh) 600 hku nna shadut ya lu ai.Cell langai mi gaw nang bang da ai 99.7% a malai 99.1% hpe bai nhtang jaw nga ai rai yang, lama ma gaw kata kaw na lithium hpe sha kau nga ai. Ga law malawng SEI rawt jat wa ai. Kalang lang lithium plating galaw ai rai yang, pack hpe katsi ai aten hta n-gun n rawng ai sha charge galaw ai.

Battery hkrat sum ai lam hpe n kaja ai cell ni hpe mara shagun ai lam grau law ai hpe ngai mu yu sai, dai aten hta tengman ai lam gaw n kaja ai thermal design re. Shana de jan hta hkrak ai cabinet langai mi. Bat lahkawng tup kadai mung n sadi hkrup ai cooling fan langai mi. Intake vent ni hpe warehouse na ga nhpu ni pat da ai.

Charge galaw ai shaloi cell a katsi ai lam gaw grup yin katsi ai lam hta grau ahkyak ai. 0.5C hta charge galaw ai pack langai gaw, grup yin hta 8 (sh) 10℃Celsius grau nna hprawng lu na re. Dai pack langai sha 1C kaw 20℃jan de hkra lu ai. Ya dai hpe latsa lang na cycle ni hta law htam shangun u.

Anhte Nevada kaw na customer langai mi gaw shanhte bungli galaw hpang ai lahkawng ning hta aten garai n du yang capacity sum mat ai majaw marawn jahtau nga ai. Shanhte a facility gaw sinpraw maga de mada yu ai. Shana de na aten hta, shanhte a battery room a dingdung daw hpe 95℃F du hkra katsi shangun nna, dingdung daw hpe 78℃F du hkra katsi shangun ai. Predictive maintenance gaw divergence hpe rim la ai, raitim kadai mung data hpe grai ahkyak ai hku yu ai aten hta hkra machyi ai lam gaw byin ngut sai.

Live system ntsa hta electrochemical impedance spectroscopy hpe galaw ai gaw, bungli galaw ai ni law malawng a matu n mai byin ai. Dai arung arai ni gaw gumhpraw teng sha ra ai rai nna, mahtai hpe lachyum shapraw chye ai wa ra ai.

Site law malawng galaw ai gaw, n-gun rawng ai aten hta DC resistance hpe hkan tam ai lam re. Load npu hta voltage sag hpe shadawn yu u. Commissioning kaw nna npawt nhpang shadawn shadang ni hte shingdaw yu ga. Htingbu ni hta 40% grau hkam sharang lu ai cell langai gaw nang hpe lama ma tsun dan nga ai.

BMS platform nkau mi gaw charge hte discharge byin ai lam ni kaw na ninghkap ai lam hpe shi hkrai shi sawn la ai. Tengman ai lam n bung ai. Ngai gaw 5% laman nail galaw ai system ni hpe mu yu sai hte, cycle hta shut ai aten ni hta sample galaw ai majaw nang hpe garbage jaw ai system ni hpe mu yu sai.

BMS operation inside the EV.

80% state of hkamja lam threshold gaw nlung npan ntsa bum kaw nna yu hkrat wa ai zawn shara shagu hta bai kahtap byin wa ai. Teng sha galai shai na dawdan lam ni gaw messier re.

Grid storage system langai mi gaw, atsam a matu gumhpraw lu ai rai nna, 82% hta module ni hpe galai shai kau mai ai, hpa majaw nga yang, shayawm kau ai prut prut ai kaw na sum mat ai gumhpraw gaw module manu hta grau law ai majaw re. Data center kaw backup power bang ai shaloi, cell ni gaw 70% du hkra hkrat sum mat chye ai, hpa majaw nga yang, shanhte gaw laning mi hta kalang mi sha n-gun yawm mat ai aten hta n-gun yawm mat ai majaw re.

Warranty ga si ni gaw dawdan lam law law hpe shabyin ya ai. Cell galaw ai ni law malawng gaw, cycle count nkau mi hta 70% (sh) 80% capacity hpe garan jaw ma ai. Na a data gaw module langai mi shata kru daram shawng de warranty threshold npu de hkrat mat na hpe madun dan ai rai yang, na a supplier hte dai ga shaga ai lam gaw grau myit lawm hpa byin wa ai.

Player kaba ni gaw, jak hpaji hte AI-madung ai ningmu ni hpe ga sadi jaw ai analytics package ni hpe dut shabra ma ai. Nkau mi gaw akyu nga ai. Law malawng gaw, tsawm htap ai sumla ni hte trend line ni rai nga ai.

Teng sha karum ya ai lam gaw, labau hte seng ai shiga ni hpe bung ai masa ni hpe shingdaw lu ai hku gram lajang da ai lam rai nga ai. Nang gaw bung ai battery container shi manga hpe galaw nna, dai hta na langai mi gaw kaga ni hta grau lawan ai hku asak kaba wa ai rai yang, dai hpe nang chye mayu ai. Na a supplier kaw na cell lot 2847 gaw site law law hta manghkang ni hpe madun nga ai rai yang, dai hpe nang teng sha chye mayu ai.

Data hpe shinggyin tawn na matu ra ai lam gaw kaji kajaw n re. Cell-madang hpe second langai lapran hta ka bang ai shaloi, shaning mi hta megawatt-hkying hkum mi hta gigabyte 2 daram shapraw lu ai. Operator law malawng gaw, shinggyin la ai manu hpe shayawm na matu sample n law ai, raitim, dai hpang, aten kadun mabyin ni hpe nang sum mat ai.

General flowchart of the BMS.

Tau hkrau tsun da ai gram lajang ai lam gaw n kaja ai cell ni hpe n mai gram lajang ai. Thermal hkra machyi ai lam hpe n mai gram lajang ai. N kaja ai hku galaw da ai shara hpe n mai gram lajang ai.

Dai galaw lu ai gaw nang hpe woi awn ai aten jaw ai. Summer peak demand event aten hta hkrat sum mat na module langai gaw, April shata hta hkyen lajang da ai gram lajang ai aten hta hkrat sum mat ai. Dai shai hkat ai lam gaw, nang hpe tara jeyang ai lam (sh) insurance n jaw ra ai sha hkye la lu na re.

Predictive maintenance kaw na tengman ai manu hpe lu la ai site ni gaw, data ni hpe teng sha galaw ai ni rai nga ai. Shata law law kadai mung n yu yu ai sadi jaw ga amyu myu hpe madun da ai tsawm htap ai dashboard ni lawm ai shara ni hpe ngai hkawm sa wa sai. Dai gaw tau hkrau tsun da ai gram lajang ai lam n re. Dai gaw manu dan ai data hpe mahkawng da ai lam re.