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Summary of Contents for SMA Sunny Boy SWR 1800U
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Page 1: Sunny Boy
Sunny Boy SWR 1800U Technical Description Issue 1.0 Grid Tied String Inverter for Photovoltaic Systems SB1800U-11:EE0402... - Page 2 Alteration SB1800U Review -11:EE0402 First issue Homburg A: Changes due to faulty documents or improvement of the documentation B: Changes maintaining full or upward compatibility C: Changes limiting or excluding compatibility Name Date Signature Approved Bremicker SB1800U-11:EE SMA Regelsysteme GmbH...
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Page 3: Table Of Contents
Data Transmission via Powerline............. 14 Data Transmission with a Separate Data Cable ........16 PV-System Management and Diagnosis..........18 Measuring Channels and Messages ............20 Measurement Precision ................22 Technical Data ....................23 Appendix ......................31 SB1800U-11:EE SMA Regelsysteme GmbH... -
Page 4: Introduction
PV system technology by purchasing a Sunny Boy String Inverter. SMA string technology has revolutionized parallel grid feeding. The SMA Sunny Boy String Inverters are the most successful photovoltaic String Inverters in Europe. They convince with their outstanding qualities concerning the efficiency and reliability and make the installation of a PV-system most simple and affordable. -
Page 5: System Description
This way every single kilowatt-hour is utilized and the electricity company’s power systems are relieved. In the most simple case a PV-system therefore consists of two basic components: the PV-panel and the inverter. Fig. 2.1: Grid tied String Inverter application SB1800U-11:EE SMA Regelsysteme GmbH... -
Page 6: String Technology
The reduction of these costs, especially the costs for the cabling on the DC side and the subsequent distribution on the AC side, was the reason for de- veloping the String Technology from SMA. The Sunny Boy finally enabled the string technology to be the standard system design for PV-systems. - Page 7 The PC-program for visualization of the data from your Sunny Boy Control The Sunny Boy Family is the result of consistent development with SMA´s experi- ence in PV conversion with over 130 MW of total nominal inverter output power in over 90,000 units with nominal powers from 700 W up to 500 kW (update: 01/02).
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Page 8: Diagnosis And Communication
LCD of the Sunny Boy Control or is shown on the screen of a PC running the according SMA software. Two programs ”Sunny Data“ and ”Sunny Data Control“ are based on a comfortable Windows GUI and allow the user to process the data with other programs ®... -
Page 9: Technical Design Of The Sunny Boy
The heat sink of the Sunny Boy is necessary in order to let thermal energy dissipate. Once the heat sink gets too hot the Sunny Boy reduces the output energy accord- ingly but nevertheless keeps feeding to the grid. SB1800U-11:EE SMA Regelsysteme GmbH... -
Page 10: Sequential Control System
NEMA 4X. The Sunny Boy can therefore be mounted nearly anywhere inside or outside the house with an ambient temperature range of -25°C to +60°C). All applicable standards and regulations for -13 °F…140 °F ( personnel safety and EMI are complied with. SB1800U-11:EE SMA Regelsysteme GmbH... -
Page 11: Islanding Protection
Sunny Boy feeds to the grid. NOTE: We recommend that you have a look at the connection wire between the Sunny Boy to the house distribution with respect to the impedance increase. SB1800U-11:EE SMA Regelsysteme GmbH... -
Page 12: Grid Monitoring
Rate of change of frequency Once the frequency changes drastically while it is feeding to the grid, the Sunny Boy disconnects within 0.2 s. This new Sunny Boy disconnection concept provides maximal safety with never- theless minimal necessary installation. SB1800U-11:EE SMA Regelsysteme GmbH... -
Page 13: Ground Fault Detector Interrupter (Gfdi)
“GFDI Fuse Open” is displayed and the inverter stops feeding to the grid. This failure is indicated by the red LED. The “GFDI Fuse Open” failure persists in case the GFDI fuse is defective. SB1800U-11:EE SMA Regelsysteme GmbH... -
Page 14: System Monitoring And Diagnosis
The phase coupling device is available from SMA and must be installed by qualified personnel. It will make com- munication within the entire in-house network possible. - Page 15 Sunny Boy 1800U Technical Description Fig. 3.1: Example of data transmission via Powerline SB1800U-11:EE SMA Regelsysteme GmbH...
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Page 16: Data Transmission With A Separate Data Cable
NOTE: RS232 communication with a Sunny Boy is only a reasonable solution with direct connection to the PC. If a Sunny Boy Control is used instead of the PC an RS485 connection is necessary. See sec- tion “RS485 communication” for details. SB1800U-11:EE SMA Regelsysteme GmbH... - Page 17 1200 m are permissible. Sunny Boy Sunny Boy Sunny Boy Sunny Boy Control RS485 interface Sunny Boy Sunny Boy Sunny Boy converter RS232 RS485 Fig. 3.3: Schematic layout of RS485 data transmission with several Sunny Boys SB1800U-11:EE SMA Regelsysteme GmbH...
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Page 18: Pv-System Management And Diagnosis
The data is stored on any available mass storage medium. Special functions allow the installer to modify the operating parameters of the Sunny Boy in order to improve the system performance. Details are available in the Sunny Data manual. Fig. 3.4: Sunny Data user interface SB1800U-11:EE SMA Regelsysteme GmbH... - Page 19 PV-system and can display the data in nearly any desired way. For details see the Sunny Data Control manual. single device detailed device information short information Fig. 3.5: Sunny Data Control user interface SB1800U-11:EE SMA Regelsysteme GmbH...
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Page 20: Measuring Channels And Messages
Vpv-_PE PV-voltage to earth current from PV-panels E-Total energy yield h-Total total operation hours Power On total system start ups Serial Number Sunny Boy serial number Mode operating mode Error failure description for mode “disturbance“ SB1800U-11:EE SMA Regelsysteme GmbH... - Page 21 PV input voltage out of tolerable range F-Zac-Bfr BFR-grid impedance measurement - value out of tolerable range F-Zac-Srr SSR-grid impedance measurement - value out of tolerable range F-Watchdog Watchdog for operation control triggered F-ROM failure of read only memory test SB1800U-11:EE SMA Regelsysteme GmbH...
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Page 22: Measurement Precision
0.01 Hz ±0.1% output power 0...2500 W ±3% energy yield E [kWh] 0...4,29* 10 Wmin 1 Wmin 20 Wmin ±3% 0.67 µs operating hours H [h] 0...4.29*10 ±0.1% Table 3.1: Measurement accuracy of the Sunny Boy SB1800U-11:EE SMA Regelsysteme GmbH... -
Page 23: Technical Data
+160°F (U > min. input voltage MPP +160 °F range). NOTE: The Sunny Boy can tolerate a current higher than the speci- fied current as long as the voltage is within the specified range. SB1800U-11:EE SMA Regelsysteme GmbH... - Page 24 171 V DC 156 V DC 138 V DC 105 V AC 120 V AC 132 V AC Fig. 4.1: Minimum MPP voltage as a function of grid voltage SB1800U-11:EE SMA Regelsysteme GmbH...
- Page 25 Recommended PV-generator power: up to 2200 W Voltage ripple: < 10% All-pole disconnection on DC side: optional external DC-breaker Pole confusion protection: short circuit diode Ground fault protection: ground fault detection > 1000 mA) ∗ ACnom SB1800U-11:EE SMA Regelsysteme GmbH...
- Page 26 Testing voltage (50 Hz): 2.88 kV (1 s) Testing voltage for surge (1.2/50 µs): 4 kV (serial interface 6 kV) External Interfaces Data transmission via Powerline: optional Data transmission via separate cable: optional; electrically separated RS232 / RS485 SB1800U-11:EE SMA Regelsysteme GmbH...
- Page 27 UL1741, EN 61000-3-2 Utility monitoring: in compliance with UL1741, optional: MSD (VDEW; E DIN VDE 0126 (10.97)) Low voltage regulation: DIN EN 50178 (4.98) (VDE 0160) DIN EN 60146 part 1-1 (3.94) (VDE 0558 part 11) SB1800U-11:EE SMA Regelsysteme GmbH...
- Page 28 Sunny Boy 1800U Technical Description 12,5 Vpv [V] Fig. 4.2: Maximum Input Current of the Sunny Boy 1800U Fig. 4.3: Output Power of the Sunny Boy 1800U SB1800U-11:EE SMA Regelsysteme GmbH...
- Page 29 Sunny Boy 1800U Technical Description Fig. 4.4: Efficiency of the Sunny Boy 1800U SB1800U-11:EE SMA Regelsysteme GmbH...
- Page 30 20000 20000 Installer Hardware-BFS Version Fixed Software-BFR Version Fixed Software-SRR Version Fixed Operating mode MPP-operation Installer Memory no function Installer function Default USA 60Hz Installer Storage permanent Installer Table 4.2: Parameter list Sunny Boy 1800U SB1800U-11:EE SMA Regelsysteme GmbH...
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Page 31: Appendix
Sunny Boy 1800U Technical Description 5 Appendix Certificate for Sunny Boy 1800U SB1800U-11:EE SMA Regelsysteme GmbH... - Page 32 Sunny Boy 1800U Technical Description SB1800U-11:EE SMA Regelsysteme GmbH...
- Page 33 • and of course all you might want to know about SMA Regelsysteme This literature can be ordered from SMA for a small fee - most of this although is available free of charge for download from WWW.SMA.DE . SB1800U-11:EE...
- Page 34 Sunny Boy 1800U Technical Description Those who want to know more about SMA Regelsysteme GmbH and its products are very welcome to visit us on our homepage. SMA in the USA: • Address: SMA America Inc. 20830 Red Dog Road Grass Valley, CA 95945 •...
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