Bijlage 6. informatie over het EOS

373kWh DC Outdoor Cabinet World-Class Battery Manufacturer

CONTENTS

• Dc cabinet specification • Advantage • Safety design • Product structure • Main component -- Fire protection system

-- Liquid cooling system -- Battery management system -- Battery pack -- Electrical communication system • Process flow • Certificate • Matching PCS model

Spec of 373kWh DC Cabinet

产品类型

Magna-UTL-373

Product category

DC liquid-cooling outdoor cabinet energy storage solution

Rated capacity

372.736kWh@0.5C

Rated output power

180kW

Rated voltage

900-1500Vd.c.

Cell capacity

280Ah

Cell type

LFP

Disposition

1P416S

Maximum discharge current

173A

Maximum charging current

173A

Charging temperature

0~50℃

Discharge temperature

-20~50℃

Communication interface

485/CAN

Cooling mode

Liquid cooling

Waterproof class

IP55

Functional safety

ASIL B

Product weight

≈3850kg

dimension

W1300*D1300*H2373.5mm

Application field

Utility，grid, C&I

Advantage

High security • Active safety fire protection system • Complies with UL 9540A • Complies with NFPA68

Long-life Combined with intelligent liquid cooling control system, of uniform heat dissipation & small battery temperature difference, which guarantees operation in the best temperature range, to extend battery life.

B

Extend easily Intelligent management system, compatible with different converters for a variety of energy storage scenarios

High integration Integrated design, integral transportation, plug&play

C D

A

Safety Design-LFP cell ⚫ High safety LFP system of optimized stability of the anode structure ；

Cathode

⚫ Optimize the ratio of electrolyte to reduce the IR,

Anode

performance ；

⚫ High adhesion and stability, low resistance and temperature rise, safety and long-term performance；

⚫ High temperature tolerance, thermal runaway performance and puncture tolerance;

Foil coated with carbon Seperator

⚫ Optimized VC/FEC to improve the stability of anode; ⚫ Adjusted LiDFOB/LiPFO2 to improve the safety at high and low temperature. ⚫ Optimize the ratio of solvent and lithium salt to improve the stability and safety of electrolyte.

Area density

Eletrolyte

Dura ble

⚫ Improve the NP radio to eliminate the

NP ratio

cathode lithium precipitation, and to

High qualtiy pressing

⚫ Reduce the pressing density of electrodes

Safe

Stable ◆ Technology design

lower IR, reduce the temperature rise, and improve safety

chain

temperature rise, and the side effects ； ⚫ Long life graphite without dendrites to maintain safety

◆ Material

⚫ Reduce the electrode coating area density to

Jelly-roll

improve safety and extend the cycle life.

to inhibit the battery inflation, and to improve the long-term stability and safety.

⚫ Optimize jelly-roll， Avoid battery bulges or excessive resistance，ensure the stability and consistency of the battery cell

Cell plate buffer

⚫ Increase the buffer of the cathode and the separator, to reduce misalignment short circuit, and the safety performance

Safety Design-Pack & System ⚫ The use of insulation materials avoids large areas of heat transfer, to effectively reduce the risk of heat spread. ⚫ Use a resettable pressure relief valve to reduce the risk of overpressure & explosion of the battery pack and prevent excessive air.

⚫ The sampling line is wrapped in a heat-resistant material to reduce the risk of secondary short circuits. ⚫ Three level fire suppression system(FSS) design ： ○ Battery Pack - Aerosol ○ Container –NOVEC1230/FM200 ○ Backup water sprinkler fire system

Exploded View ⑬ Horn & Strobe alarm device Industrial Chiller Battery Pack HV Box/ BPU MSD

Deflagration Plate Lifting Ring Gas fire Extinguisher （Optional）

Communication Port Pressure Relief Valve Dehumidifier

Hot water outlet

Cooling water inlet

FSS-Layout Aerosol Pack(Default) or Gas (Optional, FM 200 / Novec 1230) and water pipe fire suppression system (Optional)

• •

Aerosol fire suppression device for each battery pack

• •

Smoke/Gas detector： Photoelectric smoke detector； Heat detector：Fire detection devices that use a network of thermistors to monitor temperature; Horn & Strobe alarm device; 300g aerosol fire extinguishing device

FSS-Main Components No.

Main components

1

Smoke/Gas detector：Photoelectric smoke detector

2

Heat detector：Fire detection devices that use a network of thermistors to monitor temperature

3

Horn & Strobe alarm device

4

Pressure-Releasing system: valve plate

5

300g aerosol fire extinguishing device

6

Aerosol fire extinguishing device bulid in battery pack

FSS Control Strategy

Liquid cooling system-layout

• Temperature difference is well controlled within 3℃ among cells; • The temperature rise of charge and

discharge shall not exceed 4℃； • Refrigeration capacity：8kW Cooling power：4.5kW • Heating capacity：2.5kW Heating power：3.5kW

Piping for cooling system

Industrial Chiller

Liquid chiller Working diagram

Refrigerant Loop

Water Loop

Liquid Cooling System-Function The Chiller consists mainly of a compressor, condenser, throttling component, evaporator, water pump, PTC liquid heater and the necessary control components. The Chiller is used to regulate the temperature of the battery pack in the energy storage system to ensure that it always works within the right temperature range in order to maintain the best working conditions of the system, with the following functions: ⚫ Precise measurement and monitoring of the coolant temperature. ⚫ Effective heat dissipation when the battery pack temperature is high to prevent thermal runaway accidents. ⚫ Pre-heating is working when the battery temperature is low, to raise the battery temperature and ensure charging and discharging performance and safety at low temperatures.

Control strategy of liquid cooling system No.

1

Working mode

Judgment logic

Discharge condition:

After receiving the cooling request sent by BMS,

Cooling is activated when NTC monitoring cell

NTC monitoring cell Tmax≤30℃ & Tvag≤28℃ ,

TMS will start the pump within 20 seconds, and start

Tmax≥32℃&Tvag≥30℃.

Cooling will stop.

the compressor to enter the cooling mode after 30

Cooling mode

seconds. The set target temperature of the Cooling is activated when NTC monitoring cell Tmax≥32℃&Tvag≥30℃. Discharge condition:

When NTC monitors cell unit Tmin≤-10℃|| Tvag≤-5℃, turn on the heating and allow

3 4

5

Heating mode

Standby mode Work mode judgment

and description Fault tolerant processing of TMS control strategy

remark

Discharge condition:

Charging condition:

2

Cut-off condition

small current discharge

Charging condition: NTC monitoring cell Tmax≤30℃ & Tvag≤28℃ .

compressor to start is T=20±1℃@ the environment is 25℃±2℃, and the compressor power will be adjusted according to the water temperature.

Discharge condition: NTC monitoring cell monomer Tmin≥20℃&Tvag≥25℃, turn off the heating.

Charging condition:

Charging condition:

When NTC monitors cell monomer Tmin≤5℃||

NTC monitors the cell mono Tmin≥20℃ &

Tvag≤10℃, turn on heating and prohibit

Tvag≥25℃, turns off the heating and allows

charging;

charging.

PTC heating is regulated by TMS. In heating mode, TMS monitors the cooling liquid heating target temperature T=30℃.

Do not start cooling and heating. The cooling and heating modes have the highest priority and are executed first when they conflict with other modes. When there is a conflict between

the cooling and heating modes, the self-circulation mode is executed. 1. When the communication between BMS and TMS is interrupted, delay 5M, TMS sends alarm code, and automatically enters standby mode, BMS sends

level 1 alarm (without cutting off the main loop relay, the power will be properly reduced, and maintenance processing is requested); 2. When the Chiller fails in the heating and cooling mode, exit and automatically enter the self-cycle mode.

Liquid Cooling System -Thermal Simulation

Ambient temperature 25℃

The highest temperature( ℃)

Temperature rise(℃）

Temperature difference( ℃）

（Ai r co o l i n g ） 2 P1 2S -1 50Ah -0 .5 CP

3 7 .3

1 2 .3

3

（ Ai r co o l i n g ）1 P2 4S -1 50Ah -1 CP

3 9 .8

1 4 .8

7 .1

（Ai r co o l i n g ） 1 P1 6S -2 80Ah -0 .5 CP

3 3 .9

8 .9

3 .3

（ L i qu i d c o o l i n g ） 1 P 52 S - 28 0Ah -0 .5 CP

31.7

6.7

2.9

BMS-Topology Battery Management System (BMS) • Sub-system- BAU monitoring & control BCU and other equipment, charge and discharge management • Sub-system- BCU monitoring & control BMU, & monitoring current & voltage of battery rack • Sub-system- BMU monitoring cell operating data (voltage/temperature)

BMS Internal communication protocol: CAN BMS to EMS/PCS communication protocol:Modbus,IEC61850,IEC104

BMS-Function Component

SBMU

Function

Monitoring the voltage and temperature of single cells in the battery module. Providing data for the battery system control of equalization management. Management of SBMUs for battery voltage and temperature and detection of the discharge current and charging current of the batteries in the same rack. Triggering the protection when current, OCV, Temp etc. exceeds the threshold values by cutting off the relays and

SBCU

reporting to SBAU through CAN bus. Control of the main relay, sampling and processing of current sensor signals, sampling of auxiliary contact feedback signals of the main relay, and leakage detection.

Calculation of the SOC and SOH of the battery rack. Connect with the SBCUs and communicate with the PCS and the monitoring screen, including obtaining voltage, temperature, current, insulation, and relay status reported by SBCUs through internal CAN bus, displaying the

SBAU

BESS status in real-time on the monitoring screen after being connected to it with debugging CAN bus, and communicating with PCS for control of charge and discharge through the external CAN bus. One SBAU (Master *1) will manages the battery information provided by multi SBCUs (slaves*N).

BMS-The advantages of the design scheme Safety --Improvement of the system failure detection, to reduce the possibility of BMS's own malfunction, and reach ASILB level； --Failure diagnosis of broken wires, over-temperature and so on is carried out for the BPU, battery pack and wiring harness, with timely warning and treatment. Reliability -- The DC bus is equipped with "controllable DC circuit breaker", for safe disconnection of the system in case of failure; -- Monitoring of the temperature of B-/B+ of the battery pack, and shutdown of the system in event of the abnormal change of temperature in time; --Software follows the Autosar architecture, greatly reducing the development & optimization cycle.

Intelligence --Intelligent address assignment, which improves the efficiency of on-site commissioning and after-sales; --Intelligent high-voltage management, minimizing the input of after-sales personnel while ensuring safety --Intelligent equalization at battery packs, racks and system to ensure the consistency and maximize the efficiency of the battery system; --Combined with EMS, PCS and backend system to enable battery remote diagnosis, remote control, remote operation and maintenance. Maintenance --Complete system diagnostic information and operation and maintenance tips for easy operation and maintenance.

Battery Pack- Specification No.

Items

Specification parameter

1

Cell specification

280Ah

2

System group mode

1P52S

3

Rated capacity

280Ah

4

Application voltage level

1500V

5

Rated energy

46.592kWh

6

IP protection level

IP67

7

Dimension

D1138*W786*H250mm

8

Weight

Apprx 360kg

9

Application

Standard Battery Pack, outdoor cabinet

4.1 电池包爆炸图

Explosive view of Great Power Battery Pack-Structure Battery Pack cover

Aluminum BUS

Access window

Module insulation sheet

Extinguishing agent inside the pack (aerosol)

Battery sub module 1P12S

Terminal plate 280Ah cell Steel tape

Hight voltage connector(socket) MSD

Relief Valve

Liquid cooling panel BMU(sub control board)

Resin

HV Box Fuse

⚫ BCU ⚫ Isolating switch

Shunt Air switch Isolating switch

⚫ Lightning protector ⚫ UPS & Battery(lead-acid) ⚫ HV relay ⚫ ……

Lightning surge protection

Precharge resistor Manual Disconnector Power switch Precharge relay

HV relay Battery

FAT Factory acceptance tests are designed to test the functionality and integrity of the entire system to ensure that all components and modules are working correctly to achieve the performance of the system. FAT mainly includes the following test items： ⚫ Dimensional check ⚫ Torque and tension test ⚫ Ground resistance test ⚫ Withstand voltage/ Hi-POT test ⚫ Charge, discharge and capacity test ⚫ Communication function test ⚫ HVAC/TMS function test ⚫ FSS function test ⚫ Waterproofing test ⚫ ........

Process flow chart

Procedure 1: Pack assembly (see paper CP file for details）

Process flow chart Enclosure Unloading

Enclosure SN identification

Power Cable connection

Communication Cable connection

Cabinet Test

Power & Communication cables Installation

BMS Aux Cable Installation

BPU Installation

Battery Pack Installation

Cabinet Shipment

Step 2: Battery rack installation and system testing (see paper CP file for details)

Certifications ESS global certificate list North America

Items

Europe

IEC62619 IEC62477 EMC (FS IEC & (IEC61000 IEC62933 AS3000 AS5139 60730-1) IEC62040 )

transpor t

GB/T 36276

UL9540A (2019)

UL9540 (2023)

PASS

PASS

/

PASS

/

PASS

/

/

/

/

/

PASS

24/03

PASS

/

/

/

/

/

/

/

/

/

PASS

Rack

PASS

/

/

/

/

PASS

/

PASS

/

/

/

/

Cabinet

/

PASS

PASS

PASS

comply

PASS

PASS

PASS

comply

Standard

Cell Battery Module

UL1973 NFPA855 （2022） (NFPA68)

Australia

comply comply

UN38.3

PASS

Compatible PCS PCS C Rate

Name of manufacturer

Dc side

Ac side

Model number

Battery voltage range

Cabinet No. at Max C rate

Rated AC power

FC1440ML

1120 - 1500 V

8

1440KW

FC2160ML

1120 - 1500 V

12

2160KW

FC2880ML 0.5C/0.33C/ INDRIVITEC 0.25C

1120 - 1500 V

16

2880KW

FC3600ML

1120 - 1500 V

20

3600KW

FC4320ML

1120 - 1500 V

20 (Short-circuit current TBC)

4320KW

Rated AC voltage

690V

Applicability Rated frequency

50/60Hz

Safety certification

Grid-connected certification

Applicable country

EN61000-6-2, EN61000-6-4, EN62477-1, IEC62103

Eu EN 50530, EN 505492, Italy CEI 0-16, Germany VDE-AR-N 4120, VDE-AR-N 4110, UK G99,

Most of Europe

Compatible PCS

PCS C Rate 0.5C/ 0.33C /0.25 C

Dc side

Ac side

Applicability

Name of manufacturer

Model number

Battery voltage range

Battery Cluster No. at Max C rate

Rated AC power

Rated AC voltage

Rated frequency

Safety certification

Grid-connected certification

Applicable country

KACO

Gridsave 92.0 TL3-S

668 - 1315 V

1

92KW

400V

50/60Hz

IEC 62477-1:2012, IEC 621091/2

/

EU

DYNAPOWE R

DYNAPO WER MPS125

730V-1500V

1

125KW

480V

60Hz

UL1741 SA\NFPA70\IEEE519 IEEE 1547.1:2020

USA

THANKS Guangzhou Great Power Energy & Techology CO.,LTD No. 912 Shiliang Road,Shawan town, Panyu, Guangzhou, China

www.greatpower.net