Reducing O&M costs with ultracapacitors in emergency pitch-control systems

By Michelle Froese By Joshua Hitt, Senior Product Line ManagerMaxwell Technologies
While wind-farm operators work to optimize turbine performance and uptime, it’s inevitable that certain components will demand greater O&M attention. One aspect of turbine maintenance that typically causes multiple downtime hours per month is battery-based emergency pitch-control systems. Pitch control is an important turbine component used to operate and control the angle of blades to maximize wind generation. It also protects turbine blades from damage during excessive wind speeds or a grid power loss.
Replacing end-of-life or failed battery parts for emergency pitch-control backup systems in wind turbines is a time-consuming and costly process.

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