SMA SUNNY BOY 8000-US, Руководство по установке

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SMA Solar Technology AG
Installation Guide SB50US-80US-IUS094030 73
Starting
The inverter has sufficient PV power to calibrate its internal systems, but not enough to begin normal
operation. Typically, the calibration lasts less than 10 seconds and then the inverter resumes normal
operation. PV voltage must remain > PV Start Voltage setting for the period of the P-Start parameter
setting. (See chapter 8 "Troubleshooting" (page 86)) The inverter will also show this status if it has
been manually set to STOP mode.
Waiting
The inverter has determined that there is enough voltage from the array to operate and is checking
the condition of the grid prior to connecting to it.
Normal Operation
The inverter is feeding the utility grid in either “MPP”, “Constant Voltage” or “Turbine” mode.
“MPP” Mode: The Sunny Boy adjusts the voltage and current from the PV array to obtain the greatest
PV output power.
“Constant Voltage” Mode: The voltage from the PV array has been set to a fixed value. This value is
set by using the Sunny Boy Control or the Sunny Data software. (The parameter name is “V-Const”)
This mode is typically used for fuel cell or micro-hydro applications.
“Turbine” Mode: This mode is used for DC rectified motor sources with a dynamic power curve
(typically wind turbines). The user can set the magnitude and slope of the curve to match a particular
alternator.
If the inverter fails to connect to the utility grid 3 times in a row, it will wait 10 minutes before
the next attempt.
In case of a grid failure, the Sunny Boy waits 5 minutes before it tries to reconnect to the
grid.