Blade-mounted flow actuator promises greater turbine power production

By Paul Dvorak A recent development promises to allow larger, more efficient, and durable wind turbines by mitigating unsteady aerodynamic forces that generate fatigue and extreme loads on blades. Developer Aquanis Inc says the device requires minimal modifications to a new blade.
Aquanis’ Chief Technology Officer, John Cooney, holds a model-scale prototype of a plasma actuator.
The design features a blade-mounted plasma flow actuator, a software controlled, solid-state electrical device that is simple and inexpensive. When a blade-embedded sensor detects deflection, software would signal the device to generate plasma that modulates the aerodynamic lift and drag forces, similar to the effect of trailing edge flaps

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