Selection: 12 units with 1.67MWh battery capacity each.
Rationale: The 1.67MWh capacity per unit was chosen based on the specific requirements of the frequency regulation project, incorporating redundancy into the design.
Benefits: This capacity meets the on-site frequency regulation demands while enhancing system reliability and flexibility.
Advantage: The 1.67MWh capacity per unit ensures stable and continuous operation, boosting overall system performance and resilience.
The PCS consists of 4 units of 3.45MW integrated converter and booster systems, with capabilities for grid connection and disconnection. It responds to EMS scheduling commands, supports primary and secondary frequency regulation, and integrates with SVG for AVC, islanding protection, high and low voltage ride-through, and black start capabilities. It includes a transformer for high-voltage grid integration.
Battery Storage System | |||||||
| Cell Type | System Battery Configuration | Rated Battery Capacity(MWh) | Battery Voltage Range(V) | BMS Communication Interface | BMS Communication Protocol | ||
|
3.2V/314Ah |
416S1P*3*4 | 1.67*12 | 1040~1518 | RS485，Ethernet | Modbus TCP | ||
AC Output | |||||||
| Rated Power(kW) | Current Distortion Rate | DC Component | Grid Voltage(KV) | Power Factor | Power factor Adjustable Range | Rated Frid Frequency(Hz) | Grid Frequency Range(Hz) |
| 3450*4 | < 3 % (at rated power) | < 0.5 % (at rated power) | 35 | > 0.99 (at rated power) | 1 (overrun) to 1 (lag) | 60 | 55～65 |
Each container is equipped with lithium iron phosphate batteries, an integrated power conversion system, fire suppression, liquid cooling units, and other facility balance devices. The design includes built-in redundancy, allowing for full-load operation and efficient handling of rigorous 24 7 demands.
The BMS monitors battery health, including voltage, current, and temperature, ensuring optimal performance and extended battery life. Advanced algorithms predict battery aging trends and provide early warnings for maintenance.
The system includes a high-efficiency liquid cooling unit to maintain battery temperatures within a safe range, even in extreme summer conditions, preventing overheating and associated risks.
Utilizing high-quality battery cells, intelligent BMS, and advanced thermal management technologies significantly enhances battery cycle life and energy density, reducing the total cost of ownership (TCO).
In addition to standard energy storage and emergency backup functions, the system seamlessly integrates with photovoltaic panels and diesel generators, allowing for flexible switching between different energy sources and enhancing energy supply stability.
The system features high-sensitivity smoke detectors and a perfluoroketone fire suppression system that responds quickly to any abnormalities, protecting the battery from fire damage and providing comprehensive safety protection.
