Document No. 1112M001 Revision 1.8 Date: June 2013
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This method makes it possible to charge 12, 24, 36, and 48Vdc
batteries. In general, certain applications allow the use of alternative
charge controllers with the e400nb 48V as shown . These controllers
often disconnect to perform measurements and other functions. The
turbine voltage is restricted (capped) by the blade pitch control. In
addition, a safety overvoltage shutdown circuit is contained within the
interface module.
Kestrel recommends the Midnite Classic 200 charge controller.
The Kestrel Interface module includes a turbine brake switch and
isolating battery circuit breaker. The e400nb is selectively wound to
provide the maximum energy efficiency. Any MPPT (Mean Power point
Tracking) algorithm in a third party controller will enhance the
generator low wind performance. There are many sucessful
installations and possibilities.
Most alternative controllers are designed for use with solar panels but
the high quality dc output from a Kestrel wind turbine allows them to be
used. In any situation, the turbine voltage must never exceed the
controller input voltage limit which is usually 150 - 200Vdc.
