In wind turbines, the Solar Series Solar12-7 and Solar12-5 battery from BSB provides backup power for the pitch systems. 

Long Life, Low Cost, Higher Safety and Reliable Performance of wind turbine pitch control system back-up power can be achieved by using THE batteries.

the Solar Series Solar12-7 and Solar12-5 battery is field-approved product in supporting wind turbine OEMs to achieve various goals of cost, quality, safety, less downtime, longer cycle life etc.

Selecting the right back-up energy for pitch control systems is a critical decision for wind turbine OEMs. The challenges include:

• Cost of energy product
• Lifespan and Reliability
• Charging & Discharging Efficiency
• Weight Impact on Nacelle Design
• Minimizing Turbine Downtime for Replacements

At BSB, we’ve been working closely with wind turbine OEMs and Service Providers to provide our battery solutions designed to:

• Empower wind turbines with maximum efficiency
• Ensure minimum downtime of turbines
• Achieve lower lifecycle costs
• Enhance safety and reliability

BSB has developed the powerful Solar Series batteries providing reliable power back up to pitch motors in wind turbines.

To ensure constant power output of a wind turbine at different wind speeds, the blade angle adjustment system has been designed. This automatic adjustment of the rotor blades works electrically using pitch motors. In strong winds, a control system turns the rotor blades around the longitudinal axis out of the wind. When wind speed reaches 25m/s or more, the wind turbine is shut down to prevent damage to the generator. For this purpose, the rotor blades are turned by almost 90° into the feathering position. Batteries back up this power supply so that the pitch system can continuously operate reliably even in the event of a power failure. To be on the safe side, each motor has its own backup battery, which is subjected to very short autonomies with very high discharge currents that can reach to multiple times of rated capacity.

For this application with the battery being exposed to shocks and vibrations, BSB has developed the Solar Series Solar12-7 (12V 7Ah) and Solar12-5 (12V 5Ah) types, which are highly reliable and fast recovering after deep discharge because of hybrid Gel technology. And AGM technology makes the operation in almost any position (except overhead) is possible without loss of power, even in moving parts. Special lead-calcium grids ensure a long service life of 3 to 6 years according to EUROBAT, making a replacement outside the usual service intervals not necessary, especially important in the offshore sector, where maintenance costs are very high. The VRLA technology makes water refilling is also not necessary over the entire service life.

We understand every turbine and site has different requirements. Let us know your pitch system energy specifications and performance requirements, and our team will provide BSB (Best Solution of Battery) to optimize your operations.