On Sun, 14 Dec 2014 13:31:04 -0500, "Jim Wilkins"
>> On Sun, 14 Dec 2014 08:05:46 -0600, amdx wrote:
>>
>>>
>>> Have you decided how you are going to regulate the voltage to
>>> properly charge your batteries when you have a wide variance in
>>> wind speed?
>>>
>>> Mikek
>>
>> I would purchase a voltage controller like the one that came with
>> my
>> PV kit (HF).
>
>Be very sure it can handle the maximum unloaded voltage from the
>windmill in a strong wind when the controller stops drawing current
>because the battery is fully charged. The HF solar panel controller
>only barely meets its specifications.
>
A "dump regulator" in addition to the charging regulator can overcome
that by "dumping" the output into a resistive load to absorb excess
output. Use an electric water heater for your "sink"
On 12/14/2014 11:52 AM, clare@snyder.on.ca wrote:
> On Sun, 14 Dec 2014 13:31:04 -0500, "Jim Wilkins"
>
>>> On Sun, 14 Dec 2014 08:05:46 -0600, amdx wrote:
>>>
>>>>
>>>> Have you decided how you are going to regulate the voltage to
>>>> properly charge your batteries when you have a wide variance in
>>>> wind speed?
>>>>
>>>> Mikek
>>>
>>> I would purchase a voltage controller like the one that came with
>>> my
>>> PV kit (HF).
>>
>> Be very sure it can handle the maximum unloaded voltage from the
>> windmill in a strong wind when the controller stops drawing current
>> because the battery is fully charged. The HF solar panel controller
>> only barely meets its specifications.
>>
> A "dump regulator" in addition to the charging regulator can overcome
> that by "dumping" the output into a resistive load to absorb excess
> output. Use an electric water heater for your "sink"
>
I did some advising on the electronics for a solar/wind power
system for a mountaintop radio repeater.
IRRC, there are significant issues regarding keeping the
system from tearing itself apart in high wind.
Wind direction shifts while the gyro is spinning exert
a lot of force.
Add some ice, with a chunk chipped off and it
rattles itself apart rather quickly.
They ended up just stuffing the MPPT solar controller and the
wind generator into the battery system. Used a shunt regulator
to keep the batteries from overcharging while keeping
the propeller speed down.
Never thought about it before...does a wind generator have
a maximum power point load like you have with solar?
Is there significant gain to be had modulating the load
for maximum power for given wind velocity?
XML site map
>>
>>>
>>> Have you decided how you are going to regulate the voltage to
>>> properly charge your batteries when you have a wide variance in
>>> wind speed?
>>>
>>> Mikek
>>
>> I would purchase a voltage controller like the one that came with
>> my
>> PV kit (HF).
>
>Be very sure it can handle the maximum unloaded voltage from the
>windmill in a strong wind when the controller stops drawing current
>because the battery is fully charged. The HF solar panel controller
>only barely meets its specifications.
>