Technical Agreement book
Project Name : 1 MWh optical storage integrated power substation project
A side:
B side:
Optical storage integrated power substation project
Party in accordance with the joint design of optical storage integrated power substation system development needs , in consultation with the Party on the design and development of integrated optical storage lithium battery power substation project reached the following agreement :
1 Scope and environment
Product is suitable for optical storage integrated power substation project .
2 main parameters of the battery pack
Kind of project content
Basic Performance Rated reserve energy 960.kWh (1MWH)
Batteries using the 188 series and parallel and serial mode 8
Rated voltage 601.6V
Rated capacity 1600Ah
The total number of batteries 1504PCS
Electrical performance standard charge and discharge current 66.67A
Maximum continuous discharge current of 100A
The maximum instantaneous discharge current ( 5 seconds ) 300A
Charging temperature range 0 ℃ ~ 60 ℃
Discharge Temperature Range -20 ℃ ~ 60 ℃
Cycle life (80DOD% @ 25 ℃, the standard charge and discharge current ) over 1500 times
Natural cooling
Weight ( including battery holder ) 12 tons
Battery holder numberfor4 (6400mm * 1600mm * 1600mm ( L * W * H ) )
A temperature sensor temperature sampling
Battery cell voltage sampling frame set uniform sampling interfaces
2 battery holder main parameters
2.1 battery holder size is 6400mm * 1600mm * 1600mm ( L * W * H )
2.2 Distribution battery holder anchor
2.3 battery arrangement
Battery Type : LY-200Ah
Total Place : 8 * 188PCS = 1504PCS
Two storeys arrangement: divided into four parts , each part 188PCS of 188 * 4 = 752PCS
Each 188PCS arrangement Figure 2.4 :
2.5 per 188PCS BMS layout :
Each 188PCSBMS management programs : 9 * 16 +2 * 15 +1 * 14 = 188PCS
Namely: 9 Group Management 16PCS Battery 2 Group Management Group Management 14PCS 15PCS 1
2.6 BMS layout description
Scene photos
3 cell main parameters
Kind of project content
Basic performance battery type lithium iron phosphate battery
Model LY-200AhA
Nominal capacity 200.0Ah
Nominal voltage 3.2V
Charging cut-off voltage electrical performance (CC-CV mode ) 3.65 ± 0.05 V
Discharge cut-off voltage 2.8 ± 0.05 V
Battery internal resistance ( fully charged state 1kHz AC Act ) ≤ 0.8mΩ
Standard charge and discharge current (0.3C) 66.67A
Charging temperature range 0 ℃ ~ 60 ℃
Discharge Temperature Range -20 ℃ ~ 60 ℃
Maximum single battery charge current (1C) 200.0A
Single battery maximum discharge current (2C) 400.0A
Man charged battery aside some time pressure range 3.290V-3.310V
Battery capacity distribution 200Ah-230Ah
Battery internal resistance distribution 0.2mΩ-0.4mΩ
QC battery safety standards met / T 743 lithium-ion batteries for electric vehicles
Structural weight of 5.79 ± 0.1KG
Dimensions (L × W × H dimensions with terminals )
Shell material PP +15% glass fiber
IP65 dustproof and waterproof
Storage temperature -10 ℃ ~ 60 ℃
Humidity 100% RH (no condensation )
Elevations below 1000m
Shipment requires no surface rupture appearance batteries , scratches , deformation, corrosion, electrolyte leakage and other defects
4 installed in the field due to the battery holder assembly requires communication and coordination Party .
5 After the product trial is completed, the system should be completed with the FBI and the Party commissioning tests.
6 Party is responsible for providing technical conditions , maintenance manuals and other technical documents .
(7) The Agreement in duplicate , signed and sealed by both parties after the entry into force .
8 matters not decided by mutual consultation .
Party A: B :_______________ Battery management system technology agreement
File change history
Modifier Modified version number change brief
A new formulation Huang Zhe 2011-8-19
Battery management system technology agreement
Party : ________
B : ___ lithium source __________
Party C : Huizhou billion to Electronic Co., Ltd.
Party A , Party B and Party C management system used on _______ (601V/1600Ah) the need to purchase a set of Party B to Party C battery management system ( billion to the project code : B34013). Three good after friendly consultations , signed the technical agreement .
1 basic parameters of the battery system
Based on the need for the vehicle battery system , battery tripartite system of Table 1 lists the basic parameters of information to confirm.
Table 1 Basic parameters of the battery system
No project parameters
1 . Filling date August 19, 2011
2 customers
3 types of electric energy storage
4 car models
5 Battery type lithium iron phosphate ion battery
6 single battery capacity 200AH
7 battery capacity 1600AH
8 after the first series and parallel and serial form : 8 and 188 series
9 battery rated voltage 601V
10 Battery box number
11 each box of batteries
12. BMS protection IP40
13 battery box protection class ( battery factory fill )
14 on the battery box of the vehicle layout
15. BMS position BMU on the battery compartment in the battery box , HMU, BCU and high-voltage control part ( including positive relays, relays and negative charge relay ) integrated cabinets in a scene to find the installation location, relay and pressure tank by Party available.
16 Battery box associated with the BMS electrical components and schematics batteries , BMS / BMU / HMU / BCU, shunts , external connector type, sampling harness , temperature sensor
17 battery management system wiring diagram in Annex 1
18. BMS power supply form ( diameter > 3mm2) External Power Control
19. BMS supply voltage 24V ( Party A )
20. Driven fan device from the board are driven ( requires an additional power supply fan )
21. Driven fan currents greater than 1A of current , customer needs additional relay driver
22 fans turned Conditions highest temperature > 35 ℃ or maximum temperature inside - inside minimum temperature > 3 ℃
23 wind turbines off the temperature maximum temperature <32 ℃ and the highest temperature inside - . Minimum temperature inside <2 ℃
24 Control Relays precharge drive model , or do not involve
25. Positive contactor control driver
26. Negative contactor control driver
27. DCDC contactor control driver
28. Charging contactor control driver
29. Precharge time <1S
30. Precharge resistors 50 ohms / 100 watts
31 Battery No need for heating
32. Heating supply and installation of the battery factory
33. Heater power supply
34 upper and lower electricity flow (BMS Factory ) provided ( see Annex 2 )
35. Single battery voltage detection range of 0 ~ 5V
36. Single battery voltage sampling accuracy of 0.3% (2 ~ 5V)
37. Single battery voltage sampling frequency <30mS
38 total voltage measurement range 200V-700V
39 total voltage detection accuracy <0.5% FSR
40. Temperature sampling points
41. The average temperature sensor is placed in the cell surface layout
42 Temperature measurement range -40 ~ 120 ℃
43 . Temperature detection accuracy <± 1 ℃
44 battery box manufacturers to provide 3D view of the battery (see Annex 3 )
45. BMS size ( see Annex 7 )
46. Motor power
47. Motor controller side capacitance values 1000uF
48 Battery charge / discharge current
49 The current sensor 300A/75mV
50 The current detection accuracy <1% FSR
51 The current sensor mounting position with the master boxes, high-pressure boxes, cabinets high voltage controller integrated in a
52 is a need for insulation monitoring ( three levels , 0 : No fault ( > 500 ohms / volt ) , 1: General Failure ( 100 to 500 ohms / volt ) , 2: a serious failure ( <100 ohms / volt ) )
53. Insulation fault diagnosis based on GB / T 18384.3-2001
54. Whether to adopt the two insulation is
55. SOC estimation of <15% ( hybrid condition ) <8% ( pure electric operating mode ) Accuracy
56. Equilibrium model in the discharge of equalization charging process
57. Equilibrium current is not less than 30mA
58. Monomer maximum allowable charge voltage 3.65V
59 Channels 2-way interface to the external CAN
60. CAN bus protocol BMS party manufacturers t