Aurora Electronics MAGNETEK PVI-3600-OUTD-UK-F-W - Manual (Page 10)

Installation and Operator’s Manual Page 10 of 63
(PVI-3600-OUTD-UK-F-W Rev.: 1.0)
2.1 Main Elements of a Wind System:
A wind system is composed of a wind turbine, a permanent magnet
generator or alternator, Wind Interface Box and Aurora Wind
inverter.
The output of wind turbine is converted from mechanical energy into
electrical energy by the permanent magnet (PM) generator. The
output of the PM generator is a variable frequency, variable voltage
waveform, commonly referred to as “wild AC”.
The output of the PM generator is feed into the Wind Interface Box.
The Wind Interface Box provides rectification and diversion load
control. The diversion load control when connected to a properly
sized resistive load provides control of the turbine output in high
wind, over-speed conditions and loss of grid which will cause the
unloading of the wind turbine. The diversion load is not a safety
brake.
The Aurora Wind inverter changes the rectified output of Wind
Interface box into useable AC which is supplied to the grid at pre-
determined nominal voltage and frequency. The Aurora Wind
inverter is supplied with the Wind turbine manufacturer’s model
specific power curve. The model specific power curve is used by the
Wind maximum power point tracking (MPPT) to extract the
maximum amount of energy from the turbine at a given rpm.
WARNING: The DC voltage shall not exceed 600Vdc for any reason,
so as to avoid damage to the equipment.
NOTE: A minimum DC input voltage value of 50Vdc is required to
start-up the grid connection sequence of AURORA Wind. Once
connected, AURORA will transfer to the grid the maximum power
available from the string for any DC input voltage value in the range
from 50Vdc to 530Vdc.