Open loop Integration with AES LiFePO4 Battery

ManualsBrandsDiscover Battery ManualsBatteryDiscover Battery AES 2.8kWhr / 24VDC with Xanbus Lithium (LFP) Battery

1. Theory of Operation 3

2. Battery Operating Limits 3

3. Minimum Battery Capacity 3

4. Recommended Battery Operating Settings 4

5. Power Conversion Device Settings 4

6. Verication of the Charger Set Points for AES LiFePO

Batteries in Open-Loop Systems 5

7. Glossary of Terms, Abbreviations, and Acronyms 6

APPLICATION NOTE:

OPEN LOOP INTEGRATION WITH

AES LiFePO

BATTERY

#4 -13511 Crestwood Place, Richmond, BC, V6V 2E9, Canada + 1.778.776.3288 info@discoverbattery.com

discoverbattery.com

885-0030 REV A

Summary of content (6 pages)

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APPLICATION NOTE: OPEN LOOP INTEGRATION WITH AES LiFePO4 BATTERY 1. Theory of Operation 3 2. Battery Operating Limits 3 3. Minimum Battery Capacity 3 4. Recommended Battery Operating Settings 4 5. Power Conversion Device Settings 4 6. Verification of the Charger Set Points for AES LiFePO4 Batteries in Open-Loop Systems 5 7. Glossary of Terms, Abbreviations, and Acronyms 6 885-0030 REV A #4 -13511 Crestwood Place, Richmond, BC, V6V 2E9, Canada + 1.778.776.3288 info@discoverbattery.
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AUDIENCE Configuration, installations, service, and operating tasks should only be performed by qualified personnel in consultation with local utilities and/or authorized dealers.
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1. Theory of Operation An Open Loop system using lithium batteries is also known as a drop-in lead-acid replacement system. AES batteries must be set up to work with Power Conversion and Monitoring devices in either an Open Loop or Closed Loop configuration. The charge and discharge settings in an Open Loop configuration are set up manually through the controller for the Power Conversion device at the time of installation.
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Additionally, battery peak capacity must be sized to support the surge requirements demanded by the load attached to the inverter. Match the sum of all inverter peak power values with the sum of all battery peak battery current values. System Size Peak Current Adc Constant Current Adc Rated Energy kWh 1 Battery 300 Adc 110 Adc 2.816 kWh 2 Battery 600 Adc 220 Adc 5.632 kWh 3 Battery 900 Adc 330 Adc 8.448 kWh 4 Battery 1200 Adc 440 Adc 11.264 kWh 5 Battery 1500 Adc 550 Adc 14.
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Settings 44-24-2800 44-48-3000 42-48-6650 27.2 V 54.4 V 54.4 V Charger Settings Bulk Voltage 27.2 V 54.4 V 54.4 V Absorption Voltage Time Limit 1 Absorption Voltage 1.0 < 3.0 Hr 1.0 < 3.0 Hr 1.0 < 3.0 Hr Absorption Termination Current 2A 2A 2A Float Voltage 26.8 V 53.6 V 53.6 V Equalization Disabled Disabled Disabled Temperature Compensation Disabled Disabled Disabled Installed x (78 A < 110 A) Installed x (40 A < 57 A) Installed x (92 A < 130 A) 27.4 V 54.6 V 54.
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2. Allow the system to run a complete daily cycle or, at least one full charge/discharge cycle. 3. After a full cycle, pull the data logs using AES Dashboard Software (for PC) from at least one of the batteries. Review the charge voltages from the data set by following these steps: a. Under “System Amps” (Column M) identify the positive numbers that indicate energy going into the battery and “charging”. b. Highlight the “Terminal Voltage [mV]” readings in Column P associated with charging current.