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Windenergy - Weather Sensors for Wind Energy
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Intelligently adjust warning light intensities relative to the current visibility? |
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The HSS / SWS visibility and present weather sensors can be used to automatically switch / adjust warning systems such as lights and foghorns on and off ONLY when necessary, whenever fog, rain, smoke or dust lowers the visibility to a user definable level. They can also be used to adjust warning light intensities to minimise light pollution for nearby residients. The sensor can be located at the base or on the top of the turbine or even a short distance from it. Being a forward scatter sensor it is far easier to site and not prone to the interference that back-scatter sensors experience. On smaller wind farms you can use a single sensor but on larger farms it may be necessary to have one on each corner of the wind farm. |
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Do you need to adjust the turbines during periods of freezing rain? |
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The low cost precipitation monitor (5.4103.10.x00) can detect the beginning and end of precipitation as well as the duration. The precipitation monitor can be used for status reporting or to transmit control signals to allow you to adjust the turbines accordingly during periods of freezing rain as the build up on the turbines can effect the wind flow over the blades or increase the stress on the mechanics. |
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Do you need to measure site wind conditions using RISO and DEWI approved and calibrated traditional mechanical cup and vane anemometers? |
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| For traditional mechanical cup wind speed measurement equipment to use when siting masts for wind farms, for example, we have two sensors the Compact anemometers which can be MEASNET certified as required and the First Class anemometers that are MEASNET / DEWI / RISO certified. The First Class sensors are the highest specification mechanical wind sensors available and will provide excellent response times and accuracy. The starting speed and overspeeding issues typically associated with mechanical systems are dealt with as best possible in the design and ensure measurements are highly accurate true reflections of the wind conditions at the site. |
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Do you need to evaluate a potential wind farm site? |
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SODARs are the choice of consultants for wind farm siting research, as they provide an excellent value for money capability. They do not require any structural masts or permanent fixings to measure and can be easily set-up by one person within 30 minutes. SODARs provide three dimensional wind profiles of the lower atmosphere and can show the all important effects that turbulence structures will have on the blades of turbines, as well as aiding in establishing the power curve output for different sites. The SODAR technology has come a long way and can now be calibrated for wind farm usage. SODARs have been given the first approvals from industry standards organisations such as RISO. |
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Do you need to adjust the alignment and pitch of the turbine blades relative to the wind conditions? |
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| To measure the wind flow over the turbine nacelle we recommend the Wind Horizon 200 The Wind Horizon 200 is the sensor of choice for measuring the ambient flow shifts on the actual wind turbines. The sensor is designed to withstand very high levels of shock and vibration and has a very efficient heater to ensure proper operation in all weather conditions. The digital signal can be fed into standard control systems for alignment of the blades to ensure optimum yield of the wind turbine power generation. To adjust the pitch of the turbine blades we recommend the Wind Professional Modern turbine manufacturers are starting to look at adjusting the pitch of the blades to better deal with turbulence as it reaches the turbine structure. The use of the 3-axis Wind Professional allows the user to understand the three dimensional wind on the turbine and monitor both wind direction and turbulence ensuring that the turbine is always running at optimum. The construction is designed to withstand the harsh conditions on the turbines and all Biral wind sensors are designed from the ground up to deal with lightning surges (at least as best possible for any electrical device that needs to deal with surges and strikes. |
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