Key word: 1MWH Energy storage System, lifepo4 battery packs, 20" container ESS system
Customer requirements:
1MWH Energy Storage System made by lithium battery packs.
.
Benergy solution:
Made by 48 packs of 652.8V 33Ah (21.542KWH).
| 1 | Nominal voltage | 652.8V | |
| 2 | Battery voltage range | 571.2V～744.6V | |
| 3 | Nominal capacity | 33Ah | |
| 4 | Total energy | 21.542kWh | |
| 5 | SOC range | 20%-100% | |
| 6 | Charge discharge capacity efficiency | ≥95% | |
| 7 | Maximum continuous charging current（A） | 33 | |
| 8 | Instantaneous discharge current (A) | 66 | 60s |
| 9 | Continuous discharge current（A） | 33 | |
| 10 | Battery cycle times | 2000以上 | |
| 11 | Total weight | ≤200kg | |
| 12 | Ambient relative humidity | 10%-90% | |
| 13 | Water dust protection standard | IP67 | |
| 14 | Anti-seismic property | Meet relevant national standards: GB/T 31467.3-2015 | |
| 15 | Battery pack composition | It consists of 204 series and 6 parallels and a total of 1 battery box | |
| 16 | Battery system charging and discharging ambient temperature |
Charging 0 ℃ to 60 ℃ Discharge - 20 ℃ to 60 ℃ |
Overall appearance
Two 320kW single-gun charging piles, which conforms to the "Design Specification for Electric Vehicle Charging Stations" (GB50966-2014),
"Engineering Technical Standards for Distributed Charging Facilities for Electric Vehicles" (GB/T51313-2018), "Specifications for Construction and Completion Acceptance of Electric Vehicle Charging and Switching Facilities" (NB/T33004-2013) and other national and industry standards and specifications and Guangdong Province, Shenzhen Municipal regulations on the construction, operation and management of charging facilities. The charging system can charge 4 external electric vehicles at the same time. The topology of the energy storage system is shown in Figure 11.
The specific performance parameters of the pile are shown in Table 3 and the Product Manual of Vehicle-mounted Charging Pile.
Technical parameters of a single charging pile
| 序号 | 项目project | 单位 | 技术要求skills requirement |
| 1 | 额定功率rated power | KW | 320 |
| 2 | 直流输入电压DC input voltage | V | 600-800 |
| 3 | 直流输入电流DC input current | A | 400-533 |
| 序号 | 项目 | 单位 | 技术要求 |
| 4 | 交流输入电压AC input voltage | V | 380±10% |
| 5 | 交流输入电流AC input current | A | 460-562 |
| 6 | 直流输出电压DC output voltage | V | 150-800 |
| 7 | 充电枪输出最大电流Maximum output current of charging gun | A | 250 |
| 8 | 充电枪数量Number of charging guns | - | 2 |
| 9 | 双枪并充Dual gun charge | 支持stand by | |
| 10 | 充电模式Charging mode | 自动Auto | |
| 11 | 输出电流精度Output current accuracy | % | ≤±1 |
| 12 | 稳压精度Stabilization accuracy | % | ≤±0.5 |
| 13 | 纹波系数Ripple factor | % | ≤0.5 |
| 14 | 均流不平衡度Unbalance of current sharing | % | ≤±5 |
| 15 | 充电接口/协议Charging interface/protocol | GB/T18487.1-2015 GB/T20234.1-2015 GB/T20234.3-2015 | |
| 16 | 启动时间Start Time | 3≤t≤8 | |
| 其他 | |||
| 1 | 模块整机效率Module overall efficiency | % | ≥95 |
| 2 | 电流谐波含量Current harmonic content | % | ≤5 |
| 3 | 待机损耗Standby loss | W | ≤400 |
| 4 | MTBF | h | ≥8760 |
| 5 | 连接器机械操作寿命Connector mechanical operating life | 次 | ≥10000 |
| 6 | 噪音noise | dB | ≤65 |
| 7 | 防护等级Protection level | ≥IP32 | |
| 8 | 充电枪线长Charger cable length | m | 8 米(8M) |
| 9 | 启动方式Start method | 手动/自动Manual / Auto | |
| 10 | 通讯方式communication method | CAN 通讯 | |
| 11 | 人机交互界面Interactive interface | 是Yes | |
| 12 | 外形尺寸Dimensions W*D*H | mm | 860*700*1760 |
| 13 | 整机重量（含模块）Whole machine weight (including modules) | Kg | 400 |
| 14 | 产品颜色Product color | 白White | |
| 15 | 失效隔离Failure isolation | 充电模块失效后能与系统隔离After the charging module fails, it can be isolated from the system | |
| 16 | 气味odor | 无异味和有害气体No smell and there is | |
| 17 | 自动停机Automatic shutdown | 当电源模块与控制板通讯失败When the communication between the power module and the control board fails 30S 内自动停止输出 | |
| 18 | CC1 检测Detect | 有Have | |
| 19 | 系统安全system security | 单模块故障不能影响Single module failure cannot affect系统的正常工作 | |
| 20 | 声光告警功能Sound and light alarm function | 有Have | |
| 21 | 后台传输功能Background transfer function | 支持云平台数据传输Number of cloud platforms supported | |