System Electrical Technology:
1. Energy Storage Systems Specification
NO | Project description | Specifications | Remark | |
1.1 | Energy storage system capacity | 1000KWh | ||
1.2 | Rated discharge power | 500Kw | ||
1.3 | Rated charge power | 500kW | Not allowed. | |
1.4 | Rated output voltage | 315Vac | No transformer, suit for Asia, Europe, America | |
380Vac | With/ no transformer, suit for Asia, Europe. | |||
480Vac | With/ no transformer, suit for America. | |||
1.5 | Output voltage range | Rated voltage -20% / + 15% | ||
1.6 | Rated output frequency | 50Hz | Suit for Asia, Europe | |
60Hz | Suit for Asia | |||
1.7 | Frequency Range | 47Hz~52Hz | Suit for Asia, Europe | |
57Hz~62Hz | Suit for Asia, America. | |||
1.8 | System maximum efficiency | 95% | Not with transformer | |
1.9 | Total current aberration rate | <3% | rated power, Voltage aberration rate<1% each hour | |
1.10 | DC component | <5% | rated power | |
1.11 | Power factor | -0.9~0.9 | adjustable | |
1.12 | Charge and discharge conversion time | 100ms | ||
1.13 | Communication system response time | 2S | ||
1.14 | Output connection mode | Three-phase four-wire/ three-phase five-wire | Not with transformer 3P + PE / with transformer 3P + N + PE | |
1.15 | Working temperature | -15℃~45℃ | ||
1.16 | Storage temperature | -15℃~55℃ | ||
1.17 | Working relative humidity | 0~95% | No dewing | |
1.18 | Storage relative humidity | 0~95% | No dewing | |
1.19 | Altitude | ≤2000m | ||
1.20 | System noise | <75dB | ||
1.21 | Protection level | IP54/NEMA 3R | ||
1.22 | Pollution level | 2 levels | ||
1.23 | External Communication Port | Ethernet | MODBUS(TCP/IP) | |
1.24 | Container Size | 12192*2438*2710mm | W*D*H | |
1.25 | Container Weight | 25 Ton | Not with transformer | |
27 Ton | With transformer | |||
1.26 | Container Port | Power port | Path 1 / Path 2 | 315V/380V/480V |
Power distribution port | Path 1 | 220V/110V/27 | ||
Ground port | Path 2 | PE | ||
Communication port | Path 1 | MODBUS(TCP/IP) | ||
1.27 | Charge/discharge cycle life | > 2500 | 1C charge/ discharge | |
1.28 | Service life | 10 years | Storage power drops to the initial 80% | |
1.29 | Certification | NO | American market, Europe market, Australia market, China | |
1.30 | Transport requirements | No packaging | Satisfy the sea shipping |
2. Battery cells parameters
Item | Specification | Remark
| |
2.1 Nominal Capacity | 25Ah | 0.5C discharge capacity | |
2.2 Typical Capacity | 26Ah | ||
2.3 Internal Impedance | ≤2.0mΩ | By AC 1KHz | |
2.4 Nominal Voltage | 3.20V | ||
2.5 Cell Weight | 650±20g | Containing package | |
2.6 End-of-charge Voltage | 3.65V | At CC mode | |
2.7 End-of-charge Current | 0.05C | At CV mode | |
2.8 End-of-discharge Voltage | 2.00V | ||
2.9 Charge Method | 0.5C CC/CV | 180 min | |
2.10 Quick Charge Method | 1C CC/CV | 90 min | |
2.11 Max Continuous Discharge current | 50A | Continuous Discharge Time: 30 minutes | |
2.12 Max pulse Discharge Current | 75A | Continuous Discharge Time: 10 seconds | |
2.13 Cycle Life | ≥2000cycles | 0.5C Continual Discharge: ≥80%(100% DOD) | |
2.14 Operating Temperature | Charging Temperature
| 0~45℃ | Ambient temperature:25℃±5℃ Cell exterior temperature must be <65℃ |
Discharging Temperature | -20~55℃ | Ambient temperature: 25℃±5℃ Cell exterior temperature not exceed 80℃ | |
Storage Temperature | -20~35℃ | Recommended temperature range for long term storage is –10~ +30°℃ | |
2.15 Guarantee period | 2 year | ||
2.16 Appearance | Without break, scratch, distortion, contamination, leakage and so on |
3. Battery modules specification
Item | Specification | Remark |
3.1 Battery Cells quantity | 120 pcs | |
3.2 Battery units quantity | 10 pcs | |
3.3 Battery units serial-parallel modes | 10P12S | |
3.4 BMU quantity | 1 pcs | |
3.5 Rated Voltage | 38.4V | |
3.6 Voltage range | 30~43.8V | |
3.7 Rated Capacity | 250Ah | |
3.8 Battery module Energy | 9.6kWh | |
3.9 Battery modules Size W * D* H | 620*550*220mm | |
4.0 Weight | Approx. 110KG |
4. Battery Cabinet specification
Item | Spec | Remark |
4.1 Battery modules quantity | 18 pcs | |
4.2 Battery modules serial-parallel modes | 18S1P | |
4.3 BMU Quantity | 18 pcs | |
4.4 CBMU Quantity | 1 pcs | |
4.5 Rated Voltage | 691.2V | |
4.6 Voltage Range | 540-788.4V | |
4.7 Rated Capacity | 250Ah | |
4.8 Battery Cabinet Energy | 172.8 kWh | |
4.9 Size W*D*H | 1400*650*2200mm | |
5.0 Weight | Approx. 2700KG |
5. Dimensional Drawing
Container Layout:
As following:
1. Outdoor Air-conditioner;
2. Indoor Air-conditioner;
3. Monitor cabinet;
4. Step-wise duct;
5. Fire prevention cabinet;
6. Bidirectional converter;
7. Primary-secondary door (door embedded door);
8. Battery cabinet;
9. Chief Battery Management Control Unit (CBMU) cabinet;
10. Distribution cabinet;
11. Bar-cutting ventilation escape door;
12. Double door;
Megawatt Move box type energy storage system structure I-I sectional view
System Communication Topology: