Selection: 300 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.
Selection: 150 units of 1725kW PCS integrated boost converter cabinets.
Rationale: The 1725kW PCS units were selected to meet the project s power needs, featuring on-grid and off-grid switching capabilities and accepting EMS dispatch commands.
Benefits: These units support primary and secondary frequency regulation, AVC with SVG, island protection, high and low voltage ride-through, black start, and high-voltage grid connection with transformers.
Advantage: The 1725kW PCS units enhance system control and operational flexibility, ensuring reliable and efficient performance in diverse grid conditions.
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*4*300 | 1.67*300 | 1040~1518 | RS485，Ethernet | Modbus TCP | ||
AC Output | |||||||
| Rated Power(kWh) | Current Distortion Rate | DC Component | Grid Voltage(KV) | Power Factor | Power factor Adjustable Range | Rated Frid Frequency(Hz) | Grid Frequency Range(Hz) |
| 1725*250 | < 3 % (at rated power) | < 0.5 % (at rated power) | 35 | > 0.99 (at rated power) | 1 (overrun) to 1 (lag) | 60 | 55～65 |
Equipped with a built-in cooling air conditioning system, the battery cabinets maintain optimal temperatures even under extreme Texas summer heat. This high-efficiency cooling system prevents overheating, thereby avoiding performance degradation and safety risks, ensuring reliable and safe battery operation.
The meticulously designed airflow duct ensures smooth air circulation and even distribution of cool air, enhancing cooling efficiency while minimizing noise pollution.
Smoke Detectors: Equipped with high-sensitivity smoke detectors, the system immediately triggers an alarm upon detecting abnormal smoke, providing crucial time for emergency response. Perfluorohexanone Fire Suppression System: Utilizing advanced heptafluoropropane fire suppression technology, the system rapidly releases extinguishing agents, effectively controlling the fire source and protecting the batteries from fire damage.
The BMS monitors key battery health parameters such as voltage, current, and temperature, ensuring optimal performance and extending battery lifespan by maintaining the system in its best operating condition.
Beyond conventional energy storage and emergency backup functions, the system seamlessly integrates with solar panels and diesel generators, enabling flexible switching between multiple energy sources and enhancing the stability of energy supply.
Equipped with a built-in cooling air conditioning system, the battery cabinets maintain optimal temperatures even under extreme Texas summer heat. This high-efficiency cooling system prevents overheating, thereby avoiding performance degradation and safety risks, ensuring reliable and safe battery operation.
