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電池管理系統

BMS電池管理系統

BMS系統指電池管理系統(英語全稱:Battery Management System):是對電池進行充放電管理的系統

RS485 36V共享電動車鋰電池 智能保護板BMS

型號編碼:PCM-F36.0V 20/78A-NTC-BD-RS485-265.4*65.0*7.5
BMS規格:10串-20/78A-NTC-RS485
電壓保護:2.8/2.6V(2級過放)/4.240/4.275/4.350V(3級過充)
電流保護:≥5.5A 報警≥7A保護 (充電)/ 30A/45A/78A(3級放電保護)
自耗電流:8-15mA(正常)/500-700uA(空閑)/70-100uA(低電壓模式)
通訊類型:RS485
均衡方式:支持(當電池組不均衡時不充電)
溫度保護:支持低溫,高溫,MOS過溫等各項保護功能
產品描述:針對三元鋰/磷酸鐵鋰電池組設計,最大支持10串/容量≤30Ah電池組。使用高精度專業電池管理芯片,測量/管理電池電壓、電流、溫度等。具有多重保護功能,對鋰電池進行全方位保護。

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Contents 內容 Min. Type Max. Tolerance Unit
Absolute Maximum Rating 絕對最大設定值
Input charging voltage 輸入充電電壓   42.0   ±1% V
Continuous charging current 持續充電電流 ≤6.5 A
Output discharging voltage 輸出放電電壓 28.0 36.0 42.0   V
Continuous output discharging current 持續輸出放電電流 ≤20.0 A
Ambient Condition 使用環境條件
Operating temperature 工作溫度 -20   60  
Humidity (No Water-Drop) 濕度(無水汽凝結成水珠) 0%   90%   RH
Atmospheric pressure 大氣壓強 86   106   KPa
Storage Condition 存儲條件
Storage temperature 存儲溫度 -5   30  
Humidity (No Water-Drop) 濕度(無水汽凝結成水珠) 40%   60%   RH
Atmospheric pressure 大氣壓強 86   106   KPa
Protection Parameters (for Single Cell). 保護參數(單節電性
Over-Charge voltage protection 過充保護
Over-Charge voltage alert 過壓報警 Cell voltage ≥ 4210mV  &  1Sec additional delay
Over-Charge voltage protection 1 過充保護電壓1   4240   ±40 mV
Over-Charge voltage protection 2 過充保護電壓2 (硬件保護)   4275   ±40 mV
Over-Charge voltage protection 3 過充保護電壓3 (硬件保護)   4350   ±35 mV
Over-Charge voltage protection 1/2 release 過充保護1/2恢復電壓   4000   ±40 mV
Over-Charge voltage protection 3 release 過充保護3恢復電壓   4050   ±35 mV
Over-Charge voltage protection 1 delay time 過充保護1延遲時間 500 1000 2000   mS
Over-Charge voltage protection 2 delay time 過充保護2延遲時間 700 1000 1750   mS
Over-Charge voltage protection 3 delay time 過充保護3延遲時間 3000 4000 5000   mS
Over-Charge voltage alert/protection1/2 release delay time 過充報警/保護(1/2)恢復延遲時間 2000 3000 4000   mS
Over-Charge voltage protection 3 release delay time 過充保護3恢復延遲時間 10 16.5 25   mS
Cell Voltage Imbalance charge protection  不平衡禁止充電
Cell Voltage Imbalance charge protection  不平衡禁止充電 Cell Voltage Imbalance≥0.4V & Cell voltage(Min)≥3400mV & 2Minutes additional delay
Over-Discharge voltage protection 過放保護
Over-Discharge voltage alert 欠壓報警 Cell voltage ≤ 3200mV  &  3Sec additional delay
Over-Discharge voltage alert release 欠壓報警釋放 Cell voltage ≥ 3400mV  &  3Sec additional delay
Over-Discharge voltage protection 1 過放保護電壓1   2800   ±100 mV
Over-Discharge voltage protection 2 過放保護電壓2 (硬件保護)   2600   ±100 mV
Over-Discharge voltage protection release 過放恢復電壓   3200   ±100 mV
Over-Discharge voltage protection release current  (Charging state) 過放后充電解除 Charge current ≥200mA mA
Over-Discharge voltage protection 1 delay time 過放保護1延遲時間 500 1000 2000   mS
Over-Discharge voltage protection 2 delay time 過放保護2延遲時間 700 1000 1750   mS
Over-Discharge voltage alert/protection release delay time 過放恢復延遲 2000 3000 4000   mS
Into Shutdown mode 進入掉電模式   2800   ±100 mV
Into Shutdown mode delay time 進入掉電模式延遲時間   1800   ±60 S
Battery pack Over-Charge voltage protection 總電壓過充保護
Battery pack Over-Charge voltage alert 總電壓過壓報警 Total voltage ≥ 42.1V  &  1Sec additional delay
Battery pack Over-Charge voltage protection 總電壓過壓保護   42.4   ±0.4 V
Battery pack Over-Charge voltage protection release 總電壓過壓恢復   40.0   ±0.4 V
Battery pack Over-Charge voltage protection delay time               
總電壓過充保護延遲時間
500 1000 2000   mS
Battery pack Over-Charge voltage alert/protection release delay time
總電壓報警/過充恢復延遲時間
2000 3000 4000   mS
Battery pack Over-Discharge voltage protection 總電壓過放保護
Battery pack Over-Discharge voltage alert 總電壓過放報警 Total voltage ≤ 32.0V  &  3Sec additional delay
Battery pack Over- Discharge voltage protection 總電壓過放保護   28.0   ±0.5 V
Battery pack Over-Discharge voltage protection release 總電壓過放恢復   32.0   ±0.5 V
Battery pack Over-Discharge voltage protection delay time               總電壓過放保護延遲時間 500 1000 2000   mS
Battery pack Over-Charge voltage alert/protection release delay time
總電壓報警/過放恢復延遲時間
2000 3000 4000   mS
Charge Over-Current/Discharge Over-Current/Short circuit protection 充電過流/放電過流/短路保護
Over-Current charge alert 充電過流報警 Charge current ≥5.5A  &  3Sec additional delay
Over-Current charge alert release 充電過流報警釋放 Charge current ≤5A  &  3Sec additional delay
Over-Current charge protection 充電過流保護   7.0   ±0.5 A
Over-Current charge protection delay time 充電過流保護延遲時間 2000 3000 4000   mS
Over-Current charge protection release 充電過流保護釋放 10 Sec additional delay (連續3次充電過流鎖定,需要放電釋放。如電池處過放狀態,充電過流不鎖定)
Over-Current charge protection release current (Discharge state) 充電過流后放電解除 Discharge current ≥200mA mA
Over-Current discharge alert 放電過流報警 Discharge current ≥ 20A  &  3Sec additional delay
Over-Current discharge alert release 放電過流報警恢復 Discharge current ≤ 18A  &  3Sec additional delay
Over-Current discharge protection 1 (Only in normal mode) 放電過流保護1   30   ±3 A
Over-Current discharge protection 2 (Only in normal mode) 放電過流保護2   45   ±5 A
Over-Current discharge protection 3 放電過流保護3 (硬件保護)   78   ±12 A
Over-Current protection 1 delay time 放電過流保護1延遲 13 15 17   S
Over-Current protection 2 delay time 放電過流保護2延遲 500 1000 2000   mS
Over-Current protection 3 delay time 放電過流保護3延遲   160   ±32 mS
Over-Current protection 1/2/3 release 放電過流保護1/2/3釋放 延時15Sec自動恢復(如2分鐘之內,放電過流次數超過3次。則需要移除負載才能恢復)
Short circuit discharge protection 放電短路保護   222   ±34 A
Short circuit protection delay time 放電短路保護延遲   400   ±150 uS
Short circuit protection release 過流和短路保護釋放 延時15Sec自動恢復(如2分鐘之內,放電過流次數超過3次。則需要移除負載才能恢復)
Temperature protection 溫度保護
Charge over temperature alert  充電高溫報警 Temperature ≥ 40℃ & 3Sec additional delay
Charge low temperature alert 充電低溫報警 Temperature ≤ 5℃ & 3Sec additional delay
Discharging over temperature alert 放電高溫報警 Temperature ≥ 60℃ & 3Sec additional delay
Discharging low temperature alert 放電低溫報警 Temperature ≤ -10℃ & 3Sec additional delay
Mosfet over temperature alert  Mosfet高溫報警 Temperature ≥ 80℃ & 3Sec additional delay
Temperature alert release 溫度報警釋放 Hysteresis 5℃ & 3Sec additional delay
Charge over temperature protection 充電過溫保護   48   ±5
Charge over temperature protection release 充電過溫恢復   43   ±5
Charge low temperature protection 充電低溫保護   0   ±5
Charge low temperature protection release 充電低溫恢復   5   ±5
Discharging over temperature protection 放電過溫保護   68   ±5
Discharging over temperature protection release 放電過溫恢復   60   ±5
Discharging low temperature protection 放電低溫保護   -20   ±5
Discharging low temperature protection release 放電低溫恢復   -15   ±5
Mosfet over temperature protection  Mosfet過溫保護   85   ±5
Mosfet over temperature protection release  Mosfet過溫保護恢復   60   ±5
Pre-Discharge Resistor over temperature protection  預放電電阻過溫保護   85   ±5
Temperature protection delay time 溫度保護延遲 2000 3000 6000   mS
Temperature protection release delay time 溫度保護延遲 2000 3000 6000   mS
Cell balance 電芯平衡
Balance start voltage 平衡啟動電壓 3800mV(充電狀態)OR  3400mV(空閑狀態) ±50 mV
Balance start difference voltage between cells 平衡啟動壓差   ≥50     mV
Balance cut-off voltage Δcell voltage 平衡關斷電壓   ≤30     mV
Balance current 平衡電流   <88     mA
Balance condition 平衡條件 Balance on charging mode or idle mode(在IDLE Mode 平衡開啟電壓3400mV,放電后需要靜置2小時才會開啟均衡)
Current consumption 電流消耗                                          
Normal mode 正常模式   8 15   mA
Idle mode 空閑模式   500 700   uA
Shut down mode (Vcell ≤ 2.8V) 掉電模式   70 100   uA
Idle mode from Normal mode  正常模式進入空閑模式 無充/放電、無通訊活動、電池無故障,延遲2Minutes
Wake up way(Shut down mode) 掉電模式喚醒方式
Wake up (Shut down mode) 掉電模式喚醒 Charge (Minimum Gap Between PACK- and BAT- for Charger wake up: 2 ~ 3V )
Internal resistance PCB內阻  
main discharging circuit internal resistance of the protection board BMS放電主回路內阻 ≤20mΩ
main charging circuit internal resistance of the protection board BMS充電主回路內阻 ≤50mΩ
Communication 通訊
Communication 通訊 RS-485/UART
 

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