Integrated lithium battery energy storage solutions
SYSTEM INTEGRATION ENGINEERING

Integrate multiple subsystems into one system
Energy Storage Systems

From demand definition, system architecture, space set-up, interface boundary, control locks, heat management, fire safety to test delivery, the real integration of batteries, PCS, power distribution, EMS, liquid cooling and fire protection into a set of operated, verifiable and maintenanceable Energy Storage Systems.

Safe
Security priority Clear boundaries
Coordination
Efficient coordination System Connection
Check
Could not close temporary folder: %s The evidence is closed.
Hand it over.
Deliverable Project controlled
Battery chamber Battery Rack
DC protection DC Protection
PCS System PCS
Communication and distribution AC Distribution
EMS Control EMS Controller
Thermal management HVAC / Liquid Cooling
Fire Fire System

Five-layer integration view: one system, different dimensions

Mechanical space layer Structure, overhaul, access, maintenance
Electrical power layer Direct flow, communication, protection and location
Control chain layer Control, communication, locking
Heat management and fire level Liquid cooling, exhaust, fire protection, pressure relief
Project Engineering Layer Interface, delivery, version, evidence

Level structure: from component to site

Component Component

Cell CELL
Line Busbar
Melt Fuse
Pass Sensor
Wind Fan / Pump
Valve Valve

Subsystem

B BMS
D DC System
P PCS
A AC System
Cold HVAC
Fire Fire System
E EMS

Cabinet

System System

Energy Management EMS
Power Change PCS
Battery management BMS
Safety interlock Interlock
communications systems. Network

Station

Superior grid. Grid
Pressure-up system Transformer
Connect Point PCC
Communications Comm.

Spatial zoning and maintenance corridors

Battery chamber Checking the tunnel.
PCS module Checking the tunnel.
Electrical distribution module Checking the tunnel.
Control. Check the tunnel.
Heat management module Check the tunnel.
Fire cabin. Check the tunnel.
Personnel access Wireways Power Channel The cooling tunnel. Safe distance

Direct to grid: one-time single-line system Figure Alignment with Physical Space

Rack Batteries Battery Racks
DC Direct flow. DC Combiner
SW DC switch DC Switch
Cont DC contactor DC Contactor
PCS PCS Transform PCS
AC Communication Switches AC Switch
TR step-up transformer Transformer
PCC Grid Connection Status PCC / Grid

Control, state and chain.

EMS Main Station
On-site controller A
Field controller B
Field controller C
BMS
PCS
PCS control cabinet
Environment / Fire

Critical state and chain Example:

Chain number Trigger condition Action Objects Action Results Priority Status
ILK-101 Cluster overpressure PCS / Contact Stop Charging P0 :: Normal
ILK-102 The flow is abnormal. Wind/ Pump Run down P1 :: Normal
ILK-103 Fire alarm. High pressure / PCS Isolate the broken cabinet. P0 :: Normal
ILK-104 It's off limits. Control Systems Enter maintenance mode P1 :: Normal
ILK-105 Interrupted communications EMS / PCS Execute Local Policy P2 :: Normal

Thermal management and fire co-design

Cold
It's the main route. Liquid cooling + air-cooling backup
Temp
Temperature control Target temperature difference 5°C
Smoke
Smoke/gas detection Multi-parameter early warning
Extermination
A cabinet fire. Connect BMS / PCS
Line
Flow and excretion Wind / Depressure Channel

Interface Liability Matrix and ICD List Selected

Interface Fields Interface Responsible party A Responsible party B ICD Number Status
Mechanical Courtroom connection Reserve Construction ICD-M-001 Closed
Mechanical Liquid-cooling interface Reserve Liquid cooling supplier ICD-M-002 Closed
Electrical Communication connection Reserve Total ICD-E-002 Closed
Control Communications interface Reserve EMS ICD-C-001 Closed
Communications Platform access Reserve Owner ICD-C-002 Closed

Conflict identification and concerted resolution

Mechanical conflicts Box, liner and structure interference
Electrical conflict Cable paths and space maintenance conflicts
Hot conflicts Air currents clash with heat vents
Adjust Device Configuration
Optimizing cable course
Adjust interface position

Run mode status recurrence

Wait. Standby Standby
Fill Charge Charging
Fire! Power discharge. Discharging
Down Reduction Derating
And so... Fault Fault
Kai! Black Start Black Start
Standby: PCS stand-by, systems complete self-checking, support systems maintained.

Fault response order Priority from high to low

1 Identification BMS / EMS / SCADA
2 Alarm Sound/ Platform
3 segregated High pressure / cabinet level
4 Disposal Reduction / Fire
5 Restore Check / Reset

Design evaluation and issue closed loop

Question number Problem description Risk Responsible party Status Date of submission Close Time
ISS-2024-017 Inadequate cable maintenance space Medium Reserve Closed 2024-05-08 2024-05-07
ISS-2024-021 Fire interface position optimization High Fire Closed 2024-05-12 2024-05-11
ISS-2024-025 There's a large temperature difference between currents. Medium Thermal management Closed 2024-05-18 —
ISS-2024-031 Communications equipment redundancy confirmed Low Control Closed 2024-05-20 —

Certification and delivery chain of evidence

Simulate Simulation verification Simulation
CFC/ Electrical/ System
Completed
HIL Control and algorithm authentication HIL
Control / trouble injection
Completed
FAT Inspection and inspection at the plant FAT
Full Validation
Pass.
SAT On-site inspection and acceptance SAT
On-site system coordination
Pass.
Transport Run Authentication O&M
Run a continuous validation
Ongoing

Key validation records Example:

Authentication Type Report number Version Date Conclusions
Simulation Report SIM-2024-042 V1.0 2024-04-10 Pass.
HIL Test HIL-2024-055 V1.0 2024-04-20 Pass.
FAT Report FAT-2024-066 V1.0 2024-05-05 Pass.
SAT report SAT-2024-072 V1.0 2024-05-18 Pass.

Engineering baseline

Name of project 5 MW / 10 MWh Project Energy Storage Systems
System Version V2.0
Communication voltage 0.4 kV
Direct current voltage 1200 Vdc
Ambient temperature -20 ~ 50°C
Standard system IEC 62933 / GB/T 34120

List of deliverables Core

Figure Systems Integration
Single One system chart
Rectangular Interface Matrix
BOM BOM List
ICD ICD List
Measure Test report

Version and change records

Version Date Change explanation Status
V0.1 2024-03-12 First edition programme Archived
V1.0 2024-06-22 Complete review and update Archived
V2.0 2024-05-20 Complete optimization and validation Current