1MW Soalr Battery Energy Storage System on Gird and off Gird

• Customization: Available
• After-sales Service: 5years
• Warranty: Yes
• Model NO.: PLBESSLFP1MW
• Condition: New
• Application: Home, Industrial, Commercial
• Specification: Normal, 6096*2438*2896mm
• Battery Type: LiFePO4
• Customize: Can Be Costomized
• Ambient Temperature: -30ºC- 60ºC
• Shipping Cost: Negotiate with Supplier
• Communication Port: RS485
• Transport Package: Container
• Trademark: Plannano
• Origin: China
• HS Code: 8504402000

Product Description

 

Outline of the programme
Energy storage system is an important part and key supporting technology of smart grid, renewable energy power station, and "Internet +" smart energy. The energy storage system can provide a variety of services such as peak regulation, frequency regulation, emergency power backup, black start, and demand-side response for the operation of the power grid, which is an important means to improve the flexibility, economy and safety of the traditional power system.
This project is to connect the energy storage system to the AC voltage (400V) bus. The main role of an energy storage system is to accumulate energy, and the stored energy will be used for the system's own consumption or sold to the power system at a peak price.
The energy storage system of this project has a capacity of 0.5MW/1.075MWh, and the complete battery system, bidirectional converter (PCS), battery management system (BMS), energy management system (EMS), AC and DC distribution control system, environmental monitoring system and fire protection system are deployed in the form of containers. The energy storage system has core technical support in terms of safety, integration, and information intelligence.
System configuration
The energy storage system of this scheme is configured as 0.5MW/1.075MWh, the system adopts the integrated design scheme of containers, and the 0.5MW/1.075MWh energy storage system is integrated with high-pressure air-cooled mode below 1000V.
The key equipment of the energy storage system is composed of battery system-energy storage converter-isolation transformer, and the 0.5MW/1.075MWh energy storage system is composed of 5 battery clusters, which are connected to a 500kW PCS after being combined through a DC combiner cabinet, and the AC400V output of the PCS is connected to the AC400V AC bus of the mains through an isolation transformer.
This scheme uses 3.2V/280Ah lithium iron phosphate battery, and the single power is 0896kWh. It has the characteristics of safety and reliability, high system efficiency and long cycle life. Each standard subrack consists of 16 x 3.2V/280Ah cells, with a capacity of 51.2V/280Ah and a capacity of 14.336kWh. Each battery cluster consists of 15 sub-types in series and 1 high-voltage box, the battery cluster specification is 768V/280Ah, and the power of a single cluster is 215.04kWh.
Table 2-1 Parameters of energy storage battery system units

project	Rated voltage	capacity	energy	Group approach
Battery cell	3.2V	280Ah	0.896kWh	/
Battery box	51.2V	280Ah	14.336kWh	1P16S
Battery clusters	768V	280Ah	215.04kWh	1P240S
Battery energy storage systems	768V	5*280Ah	1075.2kWh	5*1P240S

System access topology
The energy storage system consists of a battery system, a battery management system (BMS), an energy storage inverter (PCS), an energy management system (EMS), and a step-up transformer.
The schematic diagram of the energy storage system access is as follows:

Figure 2-1 Schematic diagram of the energy storage system access
Battery system
The energy storage battery equipment adopts a modular design, including battery cells-battery modules-battery clusters-battery systems, with clear hierarchies, clear structures and perfect functions, including perfect battery cluster frames, battery management systems (BMS), temperature control systems, lighting systems, fire detection and automatic fire extinguishing systems, security systems, emergency systems, etc.
The technical parameters of the 20-foot 1075.2kWh battery container are shown in the following table:
Table 2-2 Technical parameters of 1075.2kWh battery system container

No.	project		parameter	remark
1	Nominal voltage		768V
2	Nominal charge		1075.2kWh
3	Voltage range		600V~876V	Monomer 2.5~3.65V
4	The SOC window is recommended		10%~90%
5	Maximum charging power		~500kW
6	Maximum discharge power		~500kW
7	Operating temperature	0~50ºC	0~50ºC
8		-20~50ºC	-20~50ºC
9	Ambient temperature is recommended		20~30ºC
10	Thermal management		Air-cooled	The cooling power is 30kW
11	Methods of Communication		CAN/Ethernet/RS485
12	System IP rating		IP54	container
13	weight		≤25t
14	System size		W6096×D2438×H2896mm	20' high cube container
15	Storage temperature		0~35ºC	Not more than 6 months
16	Store humidity		<70%RH

The rendering of the battery system container is shown in the following figure:

Figure 2-2a Rendering of the battery system container

Figure 2-2b Schematic diagram of the container size of the energy storage system


Figure 2-3 Energy storage grouping process
PCS system
The energy storage system adopts a 500kW bidirectional converter (with isolation transformer + STS quick transfer switch), which has the basic characteristics of bidirectional inversion, and has a series of special properties and functions, which can realize the charging and discharging functions of the battery system in different applications. The energy storage PCS can be operated automatically, with a high degree of visualization of the operating status, with a display screen as a man-machine interface, and the real-time operation data, real-time fault data, historical fault data, etc. can be clearly displayed through the touch screen or button operation.

Figure 2-7 Energy storage bidirectional converter
Battery Management System (BMS).
The battery management system is a real-time monitoring system composed of electronic circuit equipment, which effectively monitors the battery voltage, battery current, battery cluster insulation state, battery SOC, battery module and cell status (voltage, current, temperature, SOC, etc.), conducts safety management on the charging and discharging process of battery clusters, alarms and emergency protection treatment for possible faults, and carries out safety and optimization control over the operation of battery modules and battery clusters to ensure the safe, reliable and stable operation of the battery.
Topology diagram

Figure 2-10 Topology of the BMS system
Energy Management System (EMS)
The energy management system (EMS) is an important part of the energy storage system, which implements full digital control, which can view the operation status of the energy storage bidirectional converter PCS, battery management system BMS, environment, load, etc., and can carry out data collection and analysis, centralized monitoring, real-time control, intelligent operation and maintenance of the energy storage system, etc., to provide guarantee for the safe, stable and efficient operation of the energy storage system.
The system adopts a three-layer architecture, which is layered from the real-time layer, the data layer, and the verification layer.




Thermal management system
Technical parameters of air conditioning heat dissipation
Table 3-10 Air conditioning parameters

No.	project	specification
1	Dimensions (W×D×H)	1297×995×2100
2	Flanged dimensions (W×D×H)	1305×1000×2145
3	quality	400kg
4	Application environment	Outdoor
5	Scope of the working environment	-20 to +50
6	IP rating	IPX5
7	Refrigerants	R410A
8	Cooling capacity@L27 (50%)/L35	30
9	Heating capacity (optional)	8
10	The input power of refrigeration is @L27 (50%)/L35	11.6kg
11	Internal circulating air volume	8200.00
12	Power range	380-415±10%,3N~,50
14	Rated operating voltage - controller	380-415,3n~,50
15	Rated operating voltage - refrigeration/heating system	380-415,3n~,50
16	Maximum current	23

Fire control schemes
Fire Protection System Workflow Diagram:


Figure 3-6 Block diagram of the fire extinguishing system

The automatic control and manual control methods of the fire protection system are as follows:
(1) Automatic control
Under normal conditions, the fire protection system is in an automatic control state. When a fire occurs in the battery compartment, the fire detector sends out a fire alarm signal, and the fire alarm controller sends out an audible and light alarm signal, and at the same time sends a linkage command(Turn off air conditioners, fans and other ventilation equipment), issue a fire extinguishing instruction after a delay (at this time, the cabin personnel quickly evacuate), and the alarm host outputs a fire extinguishing signal to drive the container valve solenoid starter, open the container valve on the fire extinguishing agent storage bottle, and release perfluorohexanone to extinguish the fire.
(2) Manual control
When someone is working in the battery compartment, the control mode of the fire alarm controller is manual control, and the fire protection system is in the state of manual control. In the event of a fire, press the start button to activate the fire extinguishing device according to the automatic program. In the case of confirming that all personnel are evacuated, an emergency start device can be used to release the extinguishing agent after the delay to extinguish the fire. In the event of a fire alarm, if it is found that the fire extinguishing system does not need to be activated to extinguish the fire within the delay time, an emergency stop device can be used to terminate the fire extinguishing procedure.
List of main equipment
Table 3-1 List of major equipment

No.	name	specification	unit	quantity
	Box-type energy storage system		set
1	0.5MW box-type energy storage battery system	1.0752MWh energy storage system	Set	1
1.1	Battery clusters	215.04kWh,280Ah	cluster	5
1.2	BMS system	BMU,BCMU,BMS	set	1
1.3	DC combiner cabinet	5 to 1	set	1
1.4	Thermal management system	Air-cooled	set	1
1.5	Fire protection system	Perfluorohexanone fire extinguisher	set	1
1.6	Battery compartment containers	20ft container, including box and accessories	set	1
1.7	Cables & Accessories	Cable glands included	set	1
1.8	PCS	500kW	set	1
2	EMS		set	1
2.1	Hardware devices	Servers, switches, etc	set	1
2.2	Software Services	Operating systems, databases, etc	set	1