Catalogue

 

1. Product  presentation  PAGEREF _Toc16640 h 3

2. Functions and characteristics  PAGEREF _Toc30472 h 5

3. Technical parameter  PAGEREF _Toc6538 h 6

4. Running mode  PAGEREF _Toc7333 h 7

5. Introduction to cabinet body  PAGEREF _Toc7403 h 9

6. Energy storage cloud management platform  PAGEREF _Toc14626 h 23

 

1. Product  presentation

The all-in-one energy storage cabinet can improve the promotion and effective utilization of new energy such as photovoltaic and wind power, and meet various energy needs of customers. It is suitable for peak load shifting and valley filling, photovoltaic wind power consumption, demand limit, auxiliary light storage and charging system, backup power supply and other application scenarios.

 

Appearance and size

● The all-in-one energy storage cabinet selects 3.2V/150Ah LFP batteries  (single module capacity of 7.68kWh) for energy storage ； The 1P14S battery configuration is used for a single cabinet (battery rack) with rated capacity of 107kWh;With one 50kW power conversion systems (PCS) and operating in air cooling mode; the system can automatically realize the charging and discharging adjustment of energy storage battery system in different application situations, and meet the technical requirements of power quality, command response, and power control;

● The all-in-one energy storage cabinet works in a three-level control mode, that is, BMU, BCMU, and energy management system (EMS),it combine the traditional three-level BAMS with EMS, which can not only realize the real-time monitoring and control from the cell to the system; simplify equipment management, efficient data transmission, effective utilization of resources, rapid control of energy, real-time event recording and multi-level joint protection. At the same time, it provides an integrated cabinet cloud management platform to meet the functions of real-time view, remote operation and maintenance, and revenue analysis between users and operation and maintenance personnel.

2.  Functions and characteristics 

function 

● Peak cutting and valley filling

It uses energy storage devices to discharge and supply power to the load during peak/off peak periods, and draws electricity from the grid during off peak periods to reduce peak/off peak load demand and save electricity costs.

● Distributed energy consumption

It can reduce the impact of distributed wind power generation on the power grid, promote the development of distributed wind energy with high penetration rate in the power grid, and reduce wind and light abandonment.

● Emergency backup power supply

When the system experiences poor power quality and can disconnect from the grid, it uses energy storage inverters to establish stable voltage through batteries to independently supply power to local important loads, providing emergency characteristic. 

● Flexible

It supports overall lifting, adopts pre installed testing and factory production methods, supports independent work, supports centralized parallel operation, and meets the needs of different customers and scenarios.

● Reliable

It is equipped with smoke detectors, temperature detectors, and aerosol fire extinguishing devices, which can provide early warning and extinguishing in case of a fire, ensuring safety.

● Efficient

It adopts a highly available integrated design architecture, which improves the overall data exchange efficiency of the system, ensures fast power switching and real-time monitoring of the status of the integrated cabinet, and achieves efficient operation.

● Intelligent

It is equipped with a cloud based control and mobile monitoring platform, which can analyze the real-time operation status and revenue data of the integrated cabinet. Equipped with real-time alert SMS push and auxiliary operation and maintenance inspection functions, achieving intelligent operation and maintenance.

3. Technical parameter

Product model	XHY-E100-215
Battery side parameters (DC DC)
Nominal capacity (kWh)	107
Nominal Voltage (VDC)	716.8
Voltage Range (VDC)	600~900
Cell specifications	3.2V/150Ah
Battery type	Lithium iron phosphate (LFP)
Module specifications	1P224S
Grid connection side parameters (AC/ AC)
Nominal power (kW)	50
Max power (kW)	50
Nominal Voltage (VAC)	400
Mode of connection	Three-phase four-wire (3W + N + PE)
Frequency (Hz)	50/60±2.5
Power factor	-0.99~+0.00
Reactive power is of an adjustable power range	-100%~100%
Total harmonic current distortion rate(THD)	≤3% (fully-load)
Underlying parameter
Protection grade	IP54
Altitude	≤2000 m
Working humidity	≤95% RH without condensation
Working temperature	-20~50°C
Cooling-down method	Air cooled(PCS),water cooled(battery)
Noise	≤75db
Communication interface	RJ45/RS485/4G
Dimensions (W * D * H)	1500*1500*2300 mm (single cabinet)
Weight (kg)	~3000

 

4. Running mode 

The all-in-one energy storage cabinet supports single cabinet operation mode and multi-cabinet operation mode (K10 screen optional). 

● Single-cabinet operation mode

For the application scenario of 50kW/100kWh energy storage capacity demand, the system can be configured with a single outdoor battery cabinet, which is equipped with an energy management system (EMS) and grid connected system to achieve independent control and operation, while uploading data to the cloud management system.

● Multi-cabinet operation mode

According to the application scenarios of multiple 50kW/100kWh energy storage capacity requirements, the system can be configured with multiple outdoor cabinets and corresponding grid connected cabinets, multiple cabinets can cooperate with each other to realize the functions of data access and energy

management, realize the grid connection and coordinated control and operation of multiple battery cabinets, and send the data to the cloud management system.

5. Introduction to cabinet body 

Considering the technology maturity, battery life, energy conversion efficiency and energy density factors, this system selects 3.2V/150Ah LPF, and adopts self-developed integrated battery management system (BMS), which is more efficient and stable, with air cooling control technology to ensure the safety and reliability of the battery.

cell

The battery cabinet consists of 1 battery cluster, consisting of 15 battery packs (PACK), each of which contains 16series cells

high-voltage compartment

The equipment in the high voltage box includes secondary BCMU, 24V switching power supply, fuse, shunt, contactor, etc.

 

High pressure box shape

major function

●  Cluster collection, battery cluster current collection, total voltage collection.

● Abnormal protection: Power-off protection when the battery state is abnormal

● Communication hub: collect BMU information down through BCMU and pass it to EMS up through LAN.

technical parameter

 

Battery management system

The protection and monitoring function of the battery system is realized by the BMS battery management system, and the BMS system of the battery system is managed in two levels, namely BMU and BCMU respectively.

 

Battery management system architecture

●BMU function

It can monitor the voltage, temperature, and total voltage of individual cells and trays, and the above information is transmitted to the superior BCMU through CAN protocol, which can control the voltage balance of the single cell.

●BCMU function

BCMU (rack level, built in high voltage box) detects the total voltage and current of the whole battery, and transmits the above information to EMS in real time through TCP protocol. It can display the capacity and health state of battery charge and discharge, the prediction of power, the calculation of internal resistance, and control the balance of relay switch and disk level unit voltage.

● BMS technical parameters

l Energy storage converter system (PCS)

The all-in-one energy storage cabinet adopts a 100kW modular energy storage converter, which can realize the charge and discharge function of the battery system in different application occasions. It has two operation modes: grid- connected and off-grid; support multi-machine parallel operation, good capacity

expansion, and real-time fault protection according to grid-connected side voltage, frequency and its own operating status.

l  Technical parameters of the PCS  

   Air cooling system

The air cooling unit adopts integrated design, all modules are packaged in a chassis, convenient installation and space saving. The air cooling unit is used to adjust the temperature of the battery module in the integrated cabinet to ensure the final operation of the cell in the appropriate temperature range and provide the system efficiency.

● Intelligent temperature control

The unit monitors the outlet temperature  in real  time. When  the outlet temperature is higher than the refrigeration setting point and meets the cooling opening point, the unit starts the heating function; When the heating temperature is suitable, only activate the electronic water pump to meet the battery cooling at the lower heat load and reduce the power consumption.

● remote monitor and control

The unit is connected with the EMS system of the integrated cabinet through RS485 / CAN. Through message interaction, the unit can be connected remotely through  EMS  to  query  the  running  status  of  each  component  of  the  air conditioning unit and set control parameters.

● Technical parameters of the liquid-cooling system

 

security system

-fire extinguisher system-

● The system is equipped with gas detector and temperature detector, which can realize the detection of various conditions of thermal runaway of the battery.

● The system has intelligent linkage function, when the integrated cabinet due  to overload, short circuit and other reasons caused by the battery environment  rapid heating or ignition, electrolyte leakage produces toxic and flammable gas, the system can quickly detect, the signal to the monitoring system, the signal  push operation and maintenance personnel and the integrated cabinet can connect, dc gas connection disconnected in time.

● The system is equipped with aerosol (customized according to the user’ requirement) fire extinguishing device, after receiving the start signal sent out by the detector to achieve self-fire extinguishing.

-Pressure relief system-

●  The  system has pressure relief and  explosion-proof function, when the pressure in the cabinet reaches the limit value, can quickly and automatically open the exhaust cover, so that the high pressure or dangerous gas inside the body can be quickly discharged through the exhaust valve, so as to achieve the pressure reduction, discharge dangerous gas.

 

-Intelligent dehumidification system-

● The system has humidity detection function, the integrated cabinet equipped with temperature and humidity detection device can detect the humidity in the cabinet in real time, and through RS485 to connect the collected information in real time.

●The system has intelligent dehumidification function, EMS real-time detection of humidity information in the cabinet, according to the humidity range value of the cabinet operation, intelligent control of the dehumidifier, to ensure the safe operation of the cabinet.

Energy management system

Energy management system(EMS) has a complete set of energy management solutions, which are connected to PCS, BMS, liquid cooling system, safety system and  electricity meter  in  the  integrated  cabinet.  It  can access  the external  photovoltaic, load, grid-connected electric energy meter and other systems  according to the actual situation on the site to ensure the coordinated  operation of the system in the state of parallel and off-grid. The main  hardware components are the energy controller (SECU-100) and the switch.

 

Energy management unit

The core component of the energy management unit is the energy controller (SECU-100), and the technical parameters are as follows:

The SECU-100 parameters
Project	Parameter				Remarks
	least value	Standard  configuration	Crest value	Unit
internet access		2	2	road	10M / 100M /  1000M Adaptive Ethernet network interface.
CAN		1	2	road	The maximum isolated communication rate is 1000 Kb/s and the default communication rate is 250 kb / s
RS485	4	5	5	road	Quarantine  the communication,  and the default communication rate is 9600
DO		4	4	road	1A/  30VDC/  1A/ 250VAC
DI		4	4	road
4G module			1	individual	(Optional)
SD block		-	1	individual	(Optional)
Point measurement		-	6000
rated voltage	18	24	36	Vdc
rated dissipation	-	3	-	W
communicating protocol	IEC 60870-5-104，Modbus/RTU, Modbus/TCP，DLT645，MQTT
resource	ARM platform, Cortex A7 kernel; 512MB DDR3; 1GB eMMC; Linux

 

l Measurement and monitoring function

The system monitors real-time data information of station equipment (including photovoltaic  systems,  loads,  energy  storage  systems,  electricity  meters, circuit breaker status, etc.).

Simulation measurement: collect and process the voltage, current, active power,  reactive power, main transformer temperature, DC voltage, feed outlet frequency, phase and power factor of all controlled stations; state measurement: access AC  / DC circuit breaker information, fault signal, equipment operation alarm  signal, etc.

l  Data processing and analysis function

The system realizes real-time processing of data information, such as remote communication processing includes: remote signal reverse and remote signal change, which can be automatically identified according to the total accident signal and protection  signal;  analysis  and  statistical  functions  of  the integrated cabinet, total charge and discharge efficiency, charge and discharge power, charge and discharge income, etc.

l  Operation control function

The  system  realizes  real-time  control  of  energy  storage  charging  and discharging power, circuit breaker opening and closing, air conditioning switch on and off, etc. Ensure the stable, efficient and safe operation of the entire site.

l Event alarm function

The system provides an open and intelligent event alarm function, which queries the alarm information of the integrated cabinet by type and alarm source, and the system can provide a unified and permanent storage of all the event alarm information.

l One-click configuration

The system classifies and builds the model according to the integrated cabinet

  equipment. The system has the equipment model of multiple manufacturers in the industry. The operator can complete all the detailed configuration of the equipment through one-key model configuration, which improves the accuracy of the configuration and the efficiency of debugging.

l  human-computer interface

The system has embedded display  interface, which provides operators with intuitive graphical monitoring and operation interface: support wiring diagram, telemetry table, remote communication table and other pictures, support to display all measurement information with different images; support real-time trend curve; system support menu (including configurable right button menu, toolbar), hot spot, tree catalog and other operation modes; and support control through pictures, including remote control and remote adjustment.

l Remote movement and forwarding function

The system supports the data forwarding function to other systems, and uses the bottom broadband efficient communication protocol to forward the data to the flat Dan energy storage cloud management platform, and also supports the data ethernet, 4G and other ways to third-party platforms.

 

l  Multi-level joint protection strategy

The system can monitor photovoltaic systems, loads, and energy storage systems (including BAMS, PCS, AC circuit breaker, fire protection, temperature and humidity sensors and other equipment), electricity meters and other equipment. Monitor the communication and fault information of these devices. According to the severity of the fault, it is divided into three categories: mild, severe fault and critical fault. Different protection operations are carried out for different faults, and the control system is kept by standby or shutdown to ensure the safe and reliable normal operation of the whole system.

l  Peak-shifting and valley-filling control

The operation and maintenance personnel can develop a reasonable daily power generation plan based on the local peak and valley electricity prices and time, and use the special configuration tools to define the charge and discharge period and the corresponding charge and discharge power value of the station monitoring system to conduct the charge and discharge management and charge and discharge control of the whole station energy storage system;

 

l Demand control

The system can monitor the power value of the grid connection point in real time, and effectively control the grid connection point power within the set range by adjusting the charging and discharging power of the energy storage system. According  to  the  policies  of  different  regions,  the  demand  and electricity charge management and demand side management are auxiliary profit points, by helping users to reduce the demand and electricity charges, to obtain additional profit points;

 

l  Inverse power protection control

The system monitors the power value of the grid connection point in real-time, and adjusts the charging and discharging power of the energy storage system to ensure that the grid connection point power is not lower than the reverse power protection limit value, can prevent the energy storage system to send power to the system, and have the function of low frequency and low voltage disassembly energy storage system, improve the safety of the system operation;

 

l  Micro-grid economic operation control

When the micro-grid is connected to the grid, the system aims to maximize the energy utilization efficiency and minimize operating costs of the entire system while ensuring the safe operation of the micro-grid. It fully utilizes renewable energy to achieve complementary power generation of multiple energy sources, ensuring the optimal economic operation of the entire micro-grid.

l off-grid control

When the external mains power drops, the system controls the energy storage

converter (Pcs) to operate in V / f mode, to provide voltage and frequency support for the system, and to ensure that the energy storage power can be fully utilized to realize the power supply of the system load during the external power failure.

6. Energy storage cloud management platform

●  Pingdan energy  storage cloud management platform  is  a  collection of application services such as data aggregation display and operation analysis of the energy storage system. Based on the micro-service architecture, it can be flexibly deployed on the public cloud or private cloud.

● The platform supports the operation data traceability and fault query of the energy storage power station at any time period in the past.

● The platform empowers decision-making and risk prediction for energy storage power stations, achieving true unmanned operation of energy storage power stations.

● The energy storage integrated cabinet uploads the data to the cloud server through 4G for users to view in the form of WEB and APP.

 

Energy storage cloud management platform access Energy Storage Cloud management platform- -WEB page.

Real-time  information  monitoring  of  energy  storage  power  station:  site information, battery information, converter information, etc.

Operation and maintenance of energy storage power station: revenue and power quantity, efficiency analysis, etc.

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