SMA Sunny Boy Series Technical Information
Use of pv inverters in off-grid and backup systems in north and south america
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Also See for Sunny Boy Series:
- Quick reference manual (178 pages) ,
- Technical description (22 pages) ,
- Technical information (7 pages)
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Technical Information
PV Inverters
Use of PV Inverters in Off-Grid and Backup Systems in North and South America
Content
Both in off-grid systems and in the event of grid failures in backup systems, grid fluctuations in the stand-alone grid are
possible. This may cause severe deviations in nominal voltage and nominal frequency. Despite such fluctuations, all of
the components in these systems must function without problems.
This technical information will inform you about the following topics:
• Which PV inverters you can use in off-grid systems and backup systems
• Which parameters you need to set in the PV inverter
• What type of communication you need to install in backup systems
• Which values the parameters of PV inverters will take in stand-alone mode
• How the output power of the PV inverter can be limited by the Frequency-Shift Power Control (FSPC) function of the
Sunny Island
SB-OffGrid-TI-US-en-18 | Version 1.8
AMERICAN ENGLISH
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Summary of Contents for SMA Sunny Boy Series
- Page 1 Technical Information PV Inverters Use of PV Inverters in Off-Grid and Backup Systems in North and South America Content Both in off-grid systems and in the event of grid failures in backup systems, grid fluctuations in the stand-alone grid are possible.
- Page 2 1 Applicability of PV inverters (date: February 2016) SMA Solar Technology America LLC 1 Applicability of PV inverters (date: February 2016) PV Inverters Off-grid system Backup system Available? Sunny Boy (SB) SB 700U ✓ ✖ SB 3000US ✓ ✓ SB 3800-US-10 ✓...
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Page 3: Configuration Of Pv Inverters In Off-Grid Systems
SMA Solar Technology America LLC 2 Configuration of PV Inverters in Off-Grid Systems PV Inverters Off-grid system Backup system Available? Sunny Tripower (STP) STP 12000TL-US-10 ✖ ✖ STP 15000TL-US-10 ✖ ✖ STP 20000TL-US-10 ✖ ✖ STP 24000TL-US-10 ✖ ✖ STP 30000TL-US-10 ✖... - Page 4 If there is an excessive supply of energy, the PV inverters will switch off. * The BLUETOOTH® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of these marks by SMA America, LLC is under license. SB-OffGrid-TI-US-en-18...
- Page 5 4 Communication Products for Configuring PV Inverters SMA Grid Guard code required to change grid-relevant parameters To change grid-relevant parameters in the PV inverter after ten operating hours, you will need the SMA Grid Guard code. • Select a communication product corresponding to the type of communication and the PV inverter used.
- Page 6 5 Parameter Values in Stand-Alone Mode SMA Solar Technology America LLC 5 Parameter Values in Stand-Alone Mode The OFF Grid setting for the Default parameter affects the following parameters of the PV inverter. The given values are examples and have no general validity.
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Page 7: Frequency Shift Power Control (Fspc)
SMA Solar Technology America LLC 6 Frequency Shift Power Control (FSPC) 6 Frequency Shift Power Control (FSPC) If PV inverters are connected on the AC side in off-grid operation or back-up operation, the Sunny Island must be able to limit their output power. This situation can occur, for example, when the battery of the Sunny Island is fully charged and the PV power available from the PV array exceeds the power required by the connected loads.