Airdolphin Frequently Asked Questions
How much energy does it produce?
A graph shows power generation calculation for each product. This is a simulation result for average wind speed setting based on Rayleigh Distribution. The actual wind distribution will differ by location. The figures in the graph represent DC power from Airdolphin. Therefore, the efficiency of grid-tie inverter for on-grid systems, the battery charge/discharge loss for off-grid systems, and inverter efficiency for stand-alone systems also need to be considered.
What is Rayleigh Wind Distribution?
A graph shows power generation calculation for each product. This is a simulation result for average wind speed setting based on Rayleigh Distribution. The actual wind distribution will differ by location. The figures in the graph represent DC power from Airdolphin. Therefore, the efficiency of grid-tie inverter for on-grid systems, the battery charge/discharge loss for off-grid systems, and inverter efficiency for stand-alone systems also need to be considered.
What happens in strong wind conditions like typhoons?
Airdolphin automatically lowers rotational speed during strong winds, and safely continues power generation. Unlike furling (passive control) on other companies' wind turbines, Airdolphin uses active control. With automatic slowdown, the wind load is rapidly reduced to a safe condition, so there's no need for the user to stop turbine operation. Airdolphin's survival wind speed is over 65 m/s (145 mph).
Would the blades freeze and/or break in snowy areas?
In snowy areas, the Power Assist Function has proved effective for preventing ice buildup. Even if the blades freeze, they will operate normally after removing the snow and ice.
How is it evaluated?
Airdolphin's reliability evaluation is based on hundreds of vehiclemounted tests at a circuit course, which can realize strong winds of 35 m/s (78 mph). Also, field tests have been carried out in severe climates around the world, for continuous improvement of the product's reliability.
– Government-sponsored performance test in south France
– Performance test in areas below -35 degrees centigrade (-31 Fahrenheit) in Canada
– Performance test in Japan's remote areas with over 50 m/s (112 mph) wind speed, salt damage, or snowy regions.
How do you stop the wind turbine? With our original Power Assist Function, the rotor can quickly start up with improved wind capturing ability. Even when there's no wind, the power generator switches to the motor for 10 seconds every minute to spin the rotor, which prevents freezing in cold regions.
Why do you need the Power Assist Function? What's the
daily consumption? Airdolphin generates high power with ultra-efficient blade design and a generator with the world's strongest magnet. The only disadvantage is that large amount of torque is needed for rotor start-up, so the Power Assist Function was developed to bring out the best from the blades and the generator. Airdolphin starts up with the help of Power Assist Function. When the wind is sufficient, the Power Assist Function automatically turns off. Even if there is zero wind throughout the day, the power consumption is merely 30 Wh/day.
Where can I purchase a tower? Dedicated towers are available for separate purchase. Up to 5 m (16 ft) rooftop towers and up to 30.5 m (100 ft) ground towers are available. Please consult Zephyr or our dealers.
How do I choose a grid-tie inverter? Are there any
recommended manufacturers? Where can I buy them? You can use the commonly available PV inverters, as long as they satisfy the following minimum specifications and settings.
Specifications: – Maximum input voltage: over 400V DC
– Minimum input voltage: under 250V
Settings: – Power operating mode: Constant voltage mode (CV Mode)
– CV setting voltage: 270-280V DC (adjustable)
We have tested and recommend the Sunny Boy Series by SMA Solar Technology AG, Germany. |
