Post by John on Dec 18, 2012 13:47:46 GMT 1
Quiero instalar una turbina de viento.
Puede usted darme detalles que tengo que saber.
Client
Hello
Let me explain how our dump load regulators work with wind turbines so you fully understand.
The controller has a voltage detection device which monitors battery voltage.
When the battery voltage rises above the set maximum the regulator switches in the large 440A relay which connects the dump load resisters across the battery.
This reduces the battery voltage until a battery minimum is reached at which point the relay drops out, this is a constant process to regulate battery voltage.
As you rightly say the wind turbine needs to be slowed when the wind has high strength, this is done when the resister is connected across the battery.
The resister not only discharges the battery but offers the resistance across the output of the turbine, applying an above average load, slowing the blades and keeping them within operating levels.
The regulator does both jobs simultaneously, when the turbine spins too fast with high winds, the voltage on the battery rises sharply causing the regulator to switch in the dump load resisters.
The only consideration is if you have a previous installation of solar panels with their own regulator.
The two regulators need to co exist, for example if the solar panel regulator outputs too high a voltage (some do) the wind turbine controller switches in the relay and constantly tries to regulate the battery voltage. The result of this is the solar panels feed the dump load resister and no regulation or charging occurs.
There are two solutions to this,
1. Remove the solar controller and use the dump load controller (One boss) to control both solar panels and turbine at the same time.
2. Adjust the wind turbine controllers trip voltage to be above the output voltage of the solar panel regulator, allowing them to do their jobs independently.
I have attached a circuit diagram showing our three phase regulator controlling both solar panels and wind turbine (one boss).
Please note the important blocking diode, without this the batteries discharge at night through the solar panels.
If you prefer the second option I have attached the technical details about the regulator which has a voltage trip adjustment.
I think we have already sent you our data sheet “The ideal wind turbine site selection” about choosing a site for the turbine, this is very important to steer clear of all wind turbulence
caspe-solar.freeforums.net/index.cgi?board=general&action=display&thread=3
When considering two wind turbines close to each other, site them side by side when facing up wind to the predominant wind direction do not mount one down wind of the second turbine and keep them both well clear of roof’s and trees. I have a hill close to my casita which provides double speed winds at the apex, please see attached copy of “The ideal wind turbine site selection” for how this works.
My predominant wind directions are North or South so siting is easy for me, two turbines are sighted East and West of each other and as high up as possible.
An increase in height of 1 meter for instance can double the turbines output.
The cable in the mast needs to be a 15A three core rubber cable that remains flexible in cold temperatures (Rubber does this)
At the base of the mast the cable can be a normal plastic coated mains cable 15A as this is not required to flex and remains stationary.
Do try to buy cable other than Chinese made cable, because Chinese made cable has very small copper content, you need a proper 15A multi strand cable.
The normal output of small wind turbine is 10 – 15 Amps at 24v depending on the state of the battery at the time.
The wind speed for start-up is about 12km/h and a good charge rate is achieved at 24km/h but it all depends on how “Clean” your wind is.
I have seen outputs double when the correct placement is found without turbulence.
Wind turbine renewable energy has to be regarded as a “bonus” due to its unreliability, its not like a solar panel delivering power 8 hours a day in the Spanish sun.
But when you get both sun and wind the batteries are inevitable full very quickly and in winter time the wind can be predominant.
One final point of note for you the controller and wind turbines are not silent, they do make a noise, either a wind noise in the blades or a relay noise on the controller or both.
So siting of the controller it is best to avoid a wall next to bedrooms! in the middle of the night a relay can seem awfully loud.
We do have silent controllers (solid state) if you want silent operation.
I hope this comprehensive detailed email has helped you
John Jones
Apoyo técnico
www.caspe-solar.com
Puede usted darme detalles que tengo que saber.
Client
Hello
Let me explain how our dump load regulators work with wind turbines so you fully understand.
The controller has a voltage detection device which monitors battery voltage.
When the battery voltage rises above the set maximum the regulator switches in the large 440A relay which connects the dump load resisters across the battery.
This reduces the battery voltage until a battery minimum is reached at which point the relay drops out, this is a constant process to regulate battery voltage.
As you rightly say the wind turbine needs to be slowed when the wind has high strength, this is done when the resister is connected across the battery.
The resister not only discharges the battery but offers the resistance across the output of the turbine, applying an above average load, slowing the blades and keeping them within operating levels.
The regulator does both jobs simultaneously, when the turbine spins too fast with high winds, the voltage on the battery rises sharply causing the regulator to switch in the dump load resisters.
The only consideration is if you have a previous installation of solar panels with their own regulator.
The two regulators need to co exist, for example if the solar panel regulator outputs too high a voltage (some do) the wind turbine controller switches in the relay and constantly tries to regulate the battery voltage. The result of this is the solar panels feed the dump load resister and no regulation or charging occurs.
There are two solutions to this,
1. Remove the solar controller and use the dump load controller (One boss) to control both solar panels and turbine at the same time.
2. Adjust the wind turbine controllers trip voltage to be above the output voltage of the solar panel regulator, allowing them to do their jobs independently.
I have attached a circuit diagram showing our three phase regulator controlling both solar panels and wind turbine (one boss).
Please note the important blocking diode, without this the batteries discharge at night through the solar panels.
If you prefer the second option I have attached the technical details about the regulator which has a voltage trip adjustment.
I think we have already sent you our data sheet “The ideal wind turbine site selection” about choosing a site for the turbine, this is very important to steer clear of all wind turbulence
caspe-solar.freeforums.net/index.cgi?board=general&action=display&thread=3
When considering two wind turbines close to each other, site them side by side when facing up wind to the predominant wind direction do not mount one down wind of the second turbine and keep them both well clear of roof’s and trees. I have a hill close to my casita which provides double speed winds at the apex, please see attached copy of “The ideal wind turbine site selection” for how this works.
My predominant wind directions are North or South so siting is easy for me, two turbines are sighted East and West of each other and as high up as possible.
An increase in height of 1 meter for instance can double the turbines output.
The cable in the mast needs to be a 15A three core rubber cable that remains flexible in cold temperatures (Rubber does this)
At the base of the mast the cable can be a normal plastic coated mains cable 15A as this is not required to flex and remains stationary.
Do try to buy cable other than Chinese made cable, because Chinese made cable has very small copper content, you need a proper 15A multi strand cable.
The normal output of small wind turbine is 10 – 15 Amps at 24v depending on the state of the battery at the time.
The wind speed for start-up is about 12km/h and a good charge rate is achieved at 24km/h but it all depends on how “Clean” your wind is.
I have seen outputs double when the correct placement is found without turbulence.
Wind turbine renewable energy has to be regarded as a “bonus” due to its unreliability, its not like a solar panel delivering power 8 hours a day in the Spanish sun.
But when you get both sun and wind the batteries are inevitable full very quickly and in winter time the wind can be predominant.
One final point of note for you the controller and wind turbines are not silent, they do make a noise, either a wind noise in the blades or a relay noise on the controller or both.
So siting of the controller it is best to avoid a wall next to bedrooms! in the middle of the night a relay can seem awfully loud.
We do have silent controllers (solid state) if you want silent operation.
I hope this comprehensive detailed email has helped you
John Jones
Apoyo técnico
www.caspe-solar.com