Integrated lithium battery energy storage solutions
DEMO PROJECT

With 5.064 MWhEngy Storage Systems,
Get the PV station output into the programmable boundary.

Item number TC-DEMO-PROJ-PV-5064
System Capacity 5.064MWh / 1.25MW
Status COMMISSIONED
PV
Project Configuration 1P15S 15 Pack / 356kWh
ESS
Storage capacity 5.064MWh DC
PCS
PCS rated power 1.25MW ±0.625Mvar
35kV
Grid voltage Level 35kV Up and back.
Q2
Time of shipment 2024 Q2 Shipped

01 Project profile and border conditions

Project objectives

  • PV generation is planned to be enhanced and output fluctuations reduced.
  • To meet the power smoothing requirements for grid movement commands.
  • Optimizing light-voltage and reducing discarding.

Application Scenarios

  • Accompanying large-scale centralized photovoltaic power stations.
  • The storage side is responsible for programme tracking, peaking and power reconciliation.

Networking and scheduling

  • 35kV-lift pressure and dock 35kV bus.
  • Support for AGC / AVC and grid power control.

Border conditions

  • Ambient temperature: 20 ~ 50 °C
  • Altitude: 1,500 m
  • Protection level: IP54 outdoor type

Weather and radiation (typical days)

SUN
Peak radiation 1,020 W/m²
H
Total horizontal exposure 5.32 kWh/m²·d
°C
Ambient temperature 15–32 °C
WIND
Wind speed 18 m/s

Photovoltaic power projection (D-1)

PV
Photovoltage scale 3.75 MWp
E
Projected daily power generation 18.6 MWh
MAPE
Projection MAPE 6.3%

Power grid plans and constraints

PLAN
Planned online curve Smooth Output
MAX
Maximum grid power 1.25 MW
RAMP
The climb rate is limited. ≤10% Pn / min

02 System scale-up and one-time wiring.

Optical Array (DC)

The trough.

DC Combiner

Energy Storage Systems(BESS DC Block)

15 Pack / 5.064MWh

PCS

1.25MW
±0.625Mvar

step-up transformer

0.69 / 35kV

35kV switchboard

Grid Connection Status

35kV
EMS
EMS
BMS
BMS
PCS
PCS controller
M
meter
Power loop. Communications circuits

03 Area layout and System Information

  • 15 containers of battery systems: Centralized deployment as required by maintenance, fire and transport routes.
  • Outdoor installation: Meet IP54, dust, rain and heat-dispersion requirements.
  • PCS sector: Close to the currents and pressure transformers to reduce communication losses.
  • Pressure station: Access site 35kV public carrier.
  • Cable path: Direct flow, communication and communication layers.
  • Fire system: Battery area separate partition and access station fire.
Energy Storage Systems (15 cabinets) PCS Box 1.25MW Pressure station Transport Channel Area entrance N DC cable routing Exchange cable paths Communications (optic) Fire sector line

04 Dispatch closed loop: forecast — optimize — execute — feedback

SUN
Photovolt prediction D-1 / Intraday
OPT
Schedule optimization Power plan generation
PCS
Implementation PCS / BESS
FB
Measuring feedback Error correction

Planned vs actual (net power)

Power deviation

MAPE(days): 4.8% & nbsp; & nbsp; Max Offset: 0.18 MW

05 Delivery and field integration

1. Receiving and Inspection (FAT)

  • Black-Box Testing
  • Charge/Discharge Testing
  • Protect & Lock Test
  • FAT records archive

2. Transport and arrival

  • Specialized transport programme
  • Full container equipment transport
  • Date of arrival and receipt

3. Hanging in place

  • 80t car hanging
  • Positioning review
  • Basic installation

4. On-site connection

  • DC cable connection
  • AC busbar connection
  • Communications and fibre-optic access

5. System connectivity

  • Single debug
  • System connectivity
  • Protect Logical Validation

06 Organisation Typical test results

Power Tracking

Set: 10% Pn/min
Maximum measured rate of change: 8.6%Pn/min

Photovoltaic capacity

BESS absorption change during high-irradiance periods
Absorption of energy: 1.32MWh

SOC Run Window

Set: 20% - 90%
Range: 24%–88%

Battery cabinet temperature distribution

Maximum temperature difference
Temperature difference: 6.3°C

System efficiency (direct flow)

Charge Energy Ratio
Return efficiency: 93.8%

07 Performance check and error loop

Item Acceptance and inspection indicators Measured outcome Decision Remarks
Maximum grid power ≤1.25MW 1.21MW PASS —
Discount / Absorption Power ≤0.625MW 0.625MW PASS —
Rate of climb ≤10%Pn/min 8.6%Pn/min PASS —
Power tracking deviation ≤2.0% 1.32% PASS —
SOC Run Window 20%–90% 24%–88% PASS —
Available capacity ≥100% 6.3°C PASS —
Communications and protection No frame thrown / Correct Response Test passed. PASS —
Serial number Problem description Reason analysis Measures to address Status
01 Early peak can input deviations Projections of changes in models Optimizing model parameters Closed
02 The individual cabinets are shaking. Port network delay Adjust Switch Settings Closed
03 SOC lower limit triggered earlier The plan is conservative. Adjust SOC Window Closed

08 All-day energy running view Typical Day

09 Incident milestones and deliverables

Project milestones

1
Contract signing 2023-09
2
Design complete. 2023-11
3
Equipping equipment 2024-01
4
Delivery installation 2024-02
5
Debug Network 2024-03
6
Official shipping 2024-04

Delivery package (example)

System Design Document (SDS)
BMS/ EMS logs and parameters
Off-site test report (FAT)
Protect fixed values and aggregate information
On-site Receiving and Inspection Report (SAT)
Operations and maintenance manual
Performance report (PAC)
Run a list of events
Cables and wiring
Training Records

Let every light be planned and used.

TIANCHU provides a programmable, verifiable and deliverable energy storage systems for large power stations.