Power battery system inthlauhna siam dan tur ruahmanna siam a ni.
Battery pack chhunga cell pakhat zel zinga capacity leh energy danglamna balance tur leh battery pack-a energy hman dan tihchangtlun nan chuan charging leh discharging process chhung hian equalization circuit a ngai a ni. Equalization process chhunga circuit-in energy a hman dan atanga thlir chuan category lian pahnih ah then theih a ni a, chungte chu energy dissipation type leh energy non-dissipation type te an ni. Energy dissipation type hian energy tam lutuk chu heat angin a ti bo a, energy non-dissipation type chuan energy tam lutuk chu battery dang ah a transfer emaw a convert emaw a ni.
Energy dissipation-Type equilibrium enkawl dan tur .
Energy dissipation-Type equalization circuits te hian battery cell hrang hranga parallel resistor hmanga charging current shunt hmangin equalization an hmu thei a, Figure 8-12-ah hian kan hmu a ni. He circuit structure hi a awlsam a, equalization process hi a tlangpuiin charging laiin tihfel a ni. Mahse, low-capacity individual cells power a replenish thei lo va, chu chuan energy waste leh thermal management system-a load tihpun a thlen thei a ni. Energy dissipation-type electrical appliances te hi a tlangpuiin chi hnih ah an inthen a:
Energy dissipation-Type electrical appliances hi a tlangpuiin chi hnih ah an in\\hen a: pakhatnaah chuan constant shunt resistor equalization charging circuit, chutah chuan shunt resistor chu battery cell tin nen parallel-in a inzawm reng a. Hetiang method hi rintlakna sang tak leh shunt resistor value lian tak hmanga hriat theih a ni a, self-discharge avanga individual cell voltage danglamna chu fixed shunt hmangin a ti tlem a ni. A chhiatna chu shunt resistor hian charging leh discharging-ah te power a ei reng a, chu chuan energy a hloh nasa hle a A tlangpuiin energy replenished nghal theihna tur application atan a tha hle.
Pahnihnaah chuan switch-controlled shunt resistor equalization charging circuit, chutah chuan shunt resistor chu switch hmanga control a ni. Charging lai hian battery voltage pakhat zel chuan cutoff voltage a thlen chuan equalization device chuan overcharging a veng a, energy tam lutuk chu heat ah a chantir thin. He equalization circuit hi charging laiin a thawk a, charging laiin voltage sang zawk nei cell pakhat zel ah current a shunt thei a ni. A chhiatna chu equalization hun a tlem avangin shunt chhunga heat tam tak siam chhuah chu thermal management system kaltlangin a hun taka tihbo a ngai a, hei hi battery pack-a capacity lian zawk neiah chuan a langsar hle.
Entirnan, 10AH battery pack-ah chuan voltage difference 100mV a awm chuan capacity difference 500mAh aia tam a awm thei. Equalization time chu darkar 2 a nih chuan shunt current chu 250mA a nih chuan shunt resistance chu 14Ω vel a ni a, a lumna chu 2Wh vel a ni.
Non-Energy dissipation type equalization enkawl dan tur.
Non-Energy dissipation circuit hian energy dissipation circuit aiin energy a hmang tlem zawk hle a, mahse an circuit structure erawh a buaithlak hle thung. Anni hi chi hnih ah then theih an ni a, chu chu energy conversion equalization leh energy transfer equalization te an ni.
Energy hmanga inthlak danglamna (Balance) .
Energy Conversion Balancing hian switching signal hmangin cell pakhat zel chakna chu battery pack pum pui atanga a tihpun emaw, cell pakhat zel chakna chu battery pack pum puiah a chantir leh emaw a ni. Mimal cell energy atanga overall energy a inthlakna hi battery pack charging process lai hian a thleng tlangpui a, Figure 8-13 a kan hmuh ang hian. He circuit hian cell pakhat zel voltage a detect a; Cell pakhat zel voltage chuan value engemaw chen a thlen chuan balancing module chuan hna a thawk tan ta a ni. Charging voltage tihtlem nan individual cell-a charging current chu a divert a, diverted current chu module hmangin a convert a, charging bus-ah a pe kir leh a, balancing a thleng thei a ni. Energy conversion balancing method thenkhat chuan freewheeling inductor hmangin cell pakhat zel atanga battery pack thlenga energy conversion chu an ti zo thei bawk.
Battery pack pumpui energy chu cell hrang hranga chantirna tur circuit chu Figure 8-14-ah hian kan hmu a. Hetiang hmanrua hi supplementary balancing an ti bawk. Charging process chhung hian main charging module chuan battery pack chu a charge hmasa a, voltage detection circuit chuan cell pakhat zel a enfiah bawk. Cell pakhat zel voltage a san lutuk chuan main charging circuit chu a khar a, chutah chuan supplementary balancing charging module chuan battery pack chu a charge tan ta a ni. Optimized design hmangin balancing module-a charging voltage chu independent DC/DC converter leh coaxial coil transformer hmangin cell pakhat zel chungah hman a ni a, secondary winding inang chiah a dah tel bawk. Hei hian voltage sang zawk nei cell te hian auxiliary charging circuit atang hian energy an dawng tlem zawk a, voltage hniam zawk nei cell te chuan energy an dawng tam zawk a, chu chuan balancing a nei thei a ni. Hetiang method-a buaina chu secondary winding consistency control a harsa hle. Turn inang tak tak nei mahse, transformer leakage inductance leh secondary winding inkara mutual inductance ngaihtuah chuan cell pakhat zel chuan charging voltage inang an dawng lo thei. Chubakah, coaxial coil hian energy dissipation engemaw zat a tawk bawk a, he balancing method hian charging imbalances chauh a huam a, discharge state-a imbalances te a sutkian loh phah bawk.
Energy transfer balancing .
Energy Transfer Balancing hian energy storage elements inductor emaw capacitors emaw hmangin high-capacity cell pakhat zel chu battery pack chhunga lower-capacity cells-ah a transfer theih a, Figure 8-15-a kan hmuh ang hian. He circuit hian capacitor switching hmangin cell inhnaih tak tak te inkarah energy a transfer a, high-voltage atanga low-voltage cells te chu balancing neih theih nan a kal tir a ni. A dang pawhin, inductive energy storage hmangin cell kianga awmte inkarah bidirectional energy transfer a awm thei bawk. He circuit hian energy hloh a nei tlem hle a, mahse balancing laiin transfer tam tak a mamawh a, chu chuan balancing hun rei tak a siam a, multi-cell battery pack atan a tha lo hle. Capacitor-switching balancing method siam that chuan energy transfer na atan a sang ber-voltage leh lowest-voltage individual cells thlan hmangin balancing speed a ti sang thei a ni. Mahse, energy hriatfiahna leh energy transfer balancing-a switching circuit kalpui dan hi a harsa hle.
A chunga balancing methods bakah hian trickle charging hmang hian charging application-a battery balancing neih theih a ni bawk. Hei hi a awlsam ber a, external auxiliary circuitry a mamawh lo. A huam a, chu chu series-connected battery pack current tlemte hmanga charge chhunzawm zel a ni. Charging current a tlem em avangin overcharging hian fully charged battery-ah nghawng a nei tlem hle. Battery charge kim chuan electrical energy tam zawk chu chemical energy-ah a chantir theih loh avangin, a tam lutuk chu heat-ah a chantir ang. Battery charge kim lo erawh chuan full charge an thlen hma chuan electrical energy an dawng chhunzawm thei a ni. Chutiang chuan hun rei tak hnuah battery zawng zawng chu full charge a thleng ang a, chutiang chuan capacity equalization a thleng thei ang. Mahse, he method hian equalization charging hun rei tak a mamawh a, equalization neih theihna turin energy tam tak a hmang a ni. Chubakah, he method hian discharge equalization enkawlna kawngah a hlawk lo hle bawk.
Application-a harsatna awmte .
Battery balancing solution awmsa chuan a bik takin battery pack voltage-a voltage-based balancing method hmangin battery capacity a tichiang ber. Battery pack balancing neih theih nan chuan accuracy sang tak leh voltage detection-a precision sang tak neih a pawimawh hle. Voltage detection circuit-a leakage current hian battery pack consistency a nghawng nghal vek a ni. Chuvangin, voltage detection circuit awlsam leh tangkai tak design hi circuit balance-na atana harsatna lian tak a ni. Chubakah, voltage hi battery capacity tehna awmchhun a ni lo. Connection method-a internal resistance leh contact resistance hian voltage danglamna a thlen bawk. Chuvangin, balancing atana voltage chauh rinchhan hian over-balancing leh wasted energy a thlen thei a ni. A nasat lutuk chuan a tir lama capacity balancing awm mahse battery pack-ah pawh imbalances a thlen thei.
Energy dissipation circuit hi structure-ah chuan a awlsam hle a, mahse balancing resistors hian current shunting laiin energy a hmang a, heat a siam a, thermal management issue a siam a ni. Energy dissipation hmanga cell pakhat zel a terminal voltage sang lutuk emaw, hniam lutuk emaw an tihtlem avangin static balancing atan chauh an tha. An high-temperature rise hian system rintlakna a ti tlem a, dynamic balancing atan a tha lo hle. Hetiang method hi small or low-capacity battery pack atan chauh a tha.
Energy transfer circuit hi battery capacity compensation hmanga tih dan a ni a, chutah chuan a sang zawk-capacity battery chuan lower-capacity battery compensate turin energy engemaw zat a thawh a ni. A tih theih laiin, he method hi a complex a, a bulky a, a man pawh a to hle a, hei hi circuit tak takah cell pakhat zel voltage monitoring a ngaih vang a ni. Chubakah, energy transfer chu energy storage medium hmanga tih theih a ni a, chu chuan energy hman leh control chungchangah harsatna a thlen a ni. He balancing method hi a tlangpuiin battery pack lian lo leh lian loah an hmang thin.
Energy conversion circuit erawh chuan switching power supply hmangin energy conversion a thlen thei thung. Energy transfer circuit nena khaikhin chuan a buaithlak lo zawk a, a man pawh a to lo hle. Mahse, coaxial coil-te tan chuan cell tin nena windings inzawmtu wire sei leh pianzia inang lo chuan transformation ratio hrang hrang a siam a, chu chuan cell tin balance inmil lo a thlen a, chu chuan tihsual a siam a ni. Tin, coaxial coil ngei pawh hian electromagnetic leakage leh thil dang vangin energy a hmang nasa hle bawk.
