Temperature range
LICAP's ultracapacitor based retrofit solution replaces the existing lead-acid battery back-up system for pitch control in GE 30Nm and 20Nm wind turbines. Our solution is a drop-in replacement that is designed to fit in the same location as the existing batteries, and will not require any operating system modifications. We designed the solution to be common across the different pitch box versions with only wire harness, bracket and mounting accommodations.
There are 4 variations of the battery box (shown here). Wiring harnesses vary significantly between the A & B designs, with minor differences between the B1, B2, & B3 versions. Drop-in replacement cable and hardware solution adapts natively to all the OEM's component configurations without modification required.
The GE 20Nm battery box is shown here. There is only one version of the 20Nm battery box. Wiring harness will be similar to the existing harness and mounting bracket for capacitor charging unit (CCU).
Energy Storage Requirement
Balancing
Note
Lower maintenance cost
Increased reliability
Improved safety
Lower maintenance cost
Windurance Capacitor Charging Unit (CCU)
Click below to download our Wind Retrofit Brochure
PDF - Electric Pitch Control Battery Replacement Solutions
Temperature range
-50°C to +65°C
-20°C to 45°C
0°C to 50°C
Heater required*
No
Yes
Yes
Discharge to 0V for install and service?
Yes
No
No
Lifetime
10-15 years
5 years
2-4 years
The 16V, 500F Module is engineered for wind turbine emergency pitch systems. The key features include One Million Cycle life with a 10-15 year calendar life. The module has passive cell balancing, high power charge & discharge, and no lead or toxic materials. Please review the data sheets for additional specifications and ordering options.
LiCAP ultracapacitor modules feature laser welded bus bar connections to ensure a robust and reliable connection for the life of the installation VS. threaded cells with nuts that can be over torqued or come loose over time
The 6 cell ultracapacitor modules are the same dimensions and use the same mounting locations as the batteries. Each blade pitch system will use 6 modules. LICAP ultracapacitor modules feature laser welded bus bar connections to ensure a robust and reliable connection for the life of the installation.
Windurance designs and delivers performance-optimized wind turbine blade pitch technologies and power conversion equipment. In operation for more than 20 years, Windurance has accumulated vast knowledge, experience and a reputation for high performance products that consistently meet the needs of customers in the Wind Energy market. The Windurance charge controller is designed to monitor and manage 6 ultracapacitor modules, so each blade pitch system will use one charge controller.