Originally Posted by ribbony
......The seperate regulator for the wind gen, never though of that simple solution, thinking !!!...
Not a good idea!
With both solar panels
and a wind generator
regulator with a wind and a solar input should be used. If two different regulators are feeding the same battery
bank one gets confused by the other and may switch off too early. Regulators all work in slightly different ways, but in principle they are programmed to reach a maximum voltage for a set time and then drop down to a float voltage. With wind generators there is not a constant source of power to allow the regulator to stabilise itself. Often there is a huge surge in available current
from wind gusts, and then their charge may drop. Then the wind controller will still see the high voltage coming from the solar panel controller so it will soon switch to float. When the wind rises there may be a built- delay before the wind controller attempts to charge again and so the cycle continues. The wind generator may be the charge source that could potentially be providing the highest charging
capability, but much of the time it has switched itself off so its energy is being wasted.
Wind regulators are not the same as solar regulators. They must dump the excess power to a resistive load, which will get hot, so it must be mounted in a ventilated area. Some wind generators can be stopped with a remote electrical
switch. If a wind generator load is just disconnected it may spin so fast that it produces very high internal voltages that could damage the internal electronics
, and could literally blow itself to pieces. Solar regulators simply disconnect the panel, so cannot be used for wind generators.
With both solar and wind generators the simplest KISS principle is not to have a regulator for the wind generator but control it manually with a safe method of tying back the blades when the batteries are known to be 100% charged. This will rarely be needed when cruising with a large service
bank. But it shouldn’t be left running when leaving the boat for an extended period without the risk of overcharging.