1MWh 1036 Volt 1050Ah
Energy Storage System
Energy Storage Battery System Specifications:
Battery Cluster Nominal Capacity: 150Ah
System Nominal Capacity: 1350Ah
Nominal Voltage: 1050V
Voltage Range: 800-1300V
Battery Type: LFP Lithium
Battery Cluster Total Energy: 111kWh
System Total Energy: 1000kWh
Battery Cluster Available Energy: 100kWh
System Available Energy: 900kWh
SOC Discharge Window: >90%
Battery Cluster Rated Power: 100kW
System Rated Power: 500kW
Weight: <154 Lbs. (<70 Kg)
Storage Temperature: -40F~140F (-40C~60C)
Discharge Temperature: -4F~140F (-20C~60C)
Charge Temperature: 32F~131F (0C~55C)
Life Cycles: 200 at >97% SOC; >1000 at 80% SOC
Self-Discharge Rate: <3%
IP Grade: IP21
Battery Cell Specifications:
Nominal Voltage: 3.2V
Nominal Capacity: 150Ah
Internal Impedance: <0.35 milliohms
Energy Density: 153 Wh/Kg
RT Cycle Life: 4000 cycles
Low Temperature Discharge Capacity Retention: >90%
Self-Discharge Rate: <4%
Standard Charge Current: 0.5C
Max Continuous Charge Current: 1C
Limited Charge Voltage: 3.65V
Cut-off Charge Current: 0.05C
Standard Discharge Current: 1C
Max Continuous Discharge Current: 2C
End Discharge Voltage: 2.5V
Weight: 6.88 Lbs. (3.12 Kg)
Charging Temperature: 32F~131F (0~55C)
Discharge Temperature: -4F~131F (-20~55C)
Storage Temperature: -4F~104F (-20~40C)
Storage Humidity: 15% ~ 90%
Storage State of Charge (SOC): 30% ~ 50%
Delivery Capacity (SOC): 30%
Dimensions: 6.86 * 1.76 * 7.48 in. (174 * 45 * 190mm)
Battery Module Specifications:
Nominal Voltage: 57.6V
Nominal Capacity: 150Ah
Configuration: 1P18S
Max Continuous Discharge Current (1.5C): 225A
Max Continuous Charge Current (1C): 150A
Peak Discharge Current (2.6C): 400A
Peak Charge Current (1.5C): 225A
Insulation Requirement: More than 50 milliohms
Weight: <154 Lbs. (<70 Kg)
Dimensions: 23.46 * 13.39 * 8.27 in. (596mm * 340mm * 210mm)
Charge Working Temperature: 32F~131F (0~55C)
Discharge Working Temperature: -4F~131F (-20~55C)
Battery Cluster Specifications:
Nominal Voltage (50% SOC): 1036.8V
Nominal Capacity: 150Ah
Min Capacity: 120Ah
System Configuration: 324S1P
System Total Energy: 155.5kWh
System Available Energy: 143kWh
Voltage Range: 810V ~ 1182.6V
Max Pulse Discharge Current (10s): 450A
Max Pulse Charge Current (10s): 225A
Max Continuous Charge Current: 150A
Max SOC Operation Window: 5% SOC~97% SOC
Life Cycles: >3000 cycles
Max Voltage: 1134V
Max Pulse Charge Voltage (10s): 1134V
Min Constant Voltage: 907.2V
Min Pulse Voltage (10s): 810V
Self-Discharge Rate: 3%
Insulation Resistance Value: More than 50 milliohms
IP Grade: IP21
Volume Energy Density: 126.4kWh/L
Area Energy Density: 296.5kWh/m2
Dimensions: 29.9 * 27.2 * 92.3 (761 * 690 * 2345mm)
Weight: 3307 Lbs. (<1500 Kg)
The battery cabinet is mainly installed with a battery box and a BMS main management system, supporting wires and cables, and high and low voltage electrical protection components. The cabinet adopts a grouped and layered design, which has a beautiful appearance. The cabinet adopts maintenance-free technology and modular assembly structure to ensure that the cabinet structure has good mechanical strength, and the overall structure can meet the reliability and safety of the entire system to the greatest extent. The battery system consists of three battery racks.
According to the technical requirements of 1.08MWh of energy storage for the system configuration, a total of 500kW PCS is used in this energy storage system project. The energy storage unit consists of a PCS and seven battery clusters and is equipped with a battery array management unit device. Each battery cluster consists of a battery cluster management device and 18 each battery packs.
Battery System Specifications:
Nominal Voltage (50% SOC): 1036.8V
Nominal Capacity: 1050Ah
Min Capacity: 840Ah
System Configuration: 32S7P
Total System Energy: 1088.5 kWh
Available System Energy: 1001.4 kWh
Available Voltage Range: 810V ~ 1182.6V
Max Pulse Discharge Current (10s): 1500A
Max Continuous Discharge Current: 1050A
Max Pulse Discharge Current (10s): 1050A
Max Continuous Charge Current: 500A
Max SOC Operation Window: 5% SOC ~ 97% SOC
Life Cycles: >3200
Max Constant Voltage: 1134V
Max Pulse Voltage (10s): 1182.6V
Min Constant Voltage: 907.2V
Min Pulse Voltage (10s): 810V
Self-Discharge Rate: 3%
Insulation Resistance Value: More than 50 milliohms
IP Grade: IP21
Battery Management System (BMS) Basic Functions
The BMS mainly includes battery status monitoring operation control, event record storage function, insulation monitoring, dynamic balance management, protection alarm, communication and other functions to ensure normal, stable and reliable system operation.
The BMS used in this project is designed with a three-layer architecture, namely a battery collection equalization unit, a battery cluster management unit, and a battery array management unit.
Background Monitoring System (SCADA)
The monitoring background mainly implements the active and reactive power coordination control function, the charging and discharging plan curve setting function, the micro grid automatic switching function, and the communication management function. A tablet computer is placed outside the container and integrated with EMS software to achieve remote monitoring and control of the PCS. The system reserves the interface, which can be connected to the large screen for demonstration.
