Centrifugal force actuates a self-service pitch mechanism that adjusts blade angle to prevent over-speeding damage during wind gusts.
Lead-lag compensation counters controller delays that amplify electromechanical oscillations, ensuring stable grid operation.
A tower damping system equalizes side-side and fore-aft vibrational movement components through coordinated blade pitch adjustments.
A nacelle-mounted LIDAR sensor coordinates laser beam timing with rotor blade positions to maintain signal availability.
Optimal ground placement for wind turbine vane sound signal collection maximizes acoustic pressure intensity at the vertical projection of the windward rotation plane.
A wind turbine control system switches modes using an integral action controller to boost output power for grid restoration.
Dynamic thermal monitoring adjusts electrical limits to maximize annual energy production while preventing component wear and extending turbine lifespan.
An air scoop inlet section directs prevailing wind onto an air turbine to convert kinetic energy into power generation.
Coaxial excitation synchronous generator integrates windmill and motor on one shaft to stabilize voltage during load fluctuations.
Upwind LIDAR sensors detect approaching wind gusts to enable preemptive blade pitch adjustments, preventing excessive rotor loading from transient turbulence.
A wind turbine yaw drive unit rotates a ring gear via a pinion to adjust nacelle orientation.
Farm controller selects wake or noise set points to resolve conflicts near rated speed transition.
A wind turbine control system adjusts active power output based on measured voltage slope to maintain grid stability.
A wind power controller manages frequency response characteristics by distributing total power reserves between conventional and wind sources.
Serrated trailing edge with comb elements and ridges reduces trailing edge noise for residential wind turbines.
A wind power plant controller adjusts active output to maintain grid reactive power capability.
A central controller determines energy errors during a first period and compensates them in a subsequent second period by adjusting power references among generating units.
A wind turbine yaw control system adjusts rotor orientation to minimize edgewise vibrations during non-operational periods.
A wind turbine controller adjusts the tip-speed-ratio set point to track torque constraint boundaries.
A wind turbine controller system generates an extra power signal proportional to the grid frequency change rate to emulate inertial response.
Suspended at the center of gravity, this hanging windmill eliminates tower costs and lightning risks while enabling easy relocation.
A cam and follower mechanism adjusts blade incidence relative to apparent wind, resolving efficiency and complexity trade-offs in vertical-axis wind turbines.
Movable airfoil housing shields rotor to overcome breakaway torque, enabling efficient start at low wind speeds.
A wind farm control unit transmits a default power value to regulate plant output through frequency modulation.
A fluidic actuator system directs compressed air through surface openings to generate vortical structures that energize boundary layer flow.
A wind turbine yaw error compensation method uses true power curve fitting to correct measurement deviations.
An airflow deflector redirects vehicle headwinds past a rotating cylinder to generate Magnus force, achieving 17% to 34% fuel savings for semi-trucks.
An external instruction queue allows wind turbines to fetch control commands autonomously, reducing security risks while maintaining energy production.
Cords adjust blade orientation on a vertical axis turbine, resolving low energy capture efficiency without requiring full rotation.
Measure tip acceleration to detect incoming gusts early, preventing blade damage while maintaining high energy capture.
A wind turbine controller determines maximum power levels by simulating load spectra against design limits.
Parallel power supply paths ensure continuous electrical energy to wind turbine switchgear, preventing disconnection failures when primary circuits fail.
Direct-drive permanent magnet generators and magnetic bearings eliminate gearbox friction losses in vertical axis wind turbines.
An air scoop extracts bypass flow using dynamic pressure to supply cooling air for turbine shroud tip clearance control.
Intermediate hinge placement enables passive pitch control via aerodynamic forces, eliminating complex mechanical systems and reducing maintenance downtime.
Perpendicular stator mounting with flexible couplings minimizes air gap instability and structural damage caused by cyclic bending loads.
Spanwise sensors and chordwise actuators generate anti-noise signals to cancel flow-induced edge noise on rotor blades.
A wind park controller uses an energy storage buffer to mitigate torque imbalances from grid fluctuations, extending gearbox lifetime.
Resampling demodulated generator currents isolates fault signatures from noise and varying shaft speeds, enabling accurate online detection of imbalances.
Dual-outlet air extraction system directs hot generator exhaust to optimize thermal management in wind turbines.
A holding pattern computer calculates inbound wind correction angles and outbound headings using windspeed ratios.
Trending individual blade sensor data against operating thresholds enables dynamic pitch control actions that prevent catastrophic rotor blade failures.
A wind park controller dispatches differentiated power set-points to individual turbines based on their specific output levels.
Segmenting the drive train into a main motor and differential unit resolves the trade-off between excessive electrical load and low starting torque.
Multi-feature estimation generates baseline models from nacelle anemometer data to validate wind farm performance.
Modulate dc-link voltage order via d-axis current to decouple power and voltage, suppressing 4 Hz oscillations.
A wind turbine control system estimates real-time wind inflow parameters using mechanical load measurement sensors on stationary components.
A wind turbine control method determines predictive distribution parameters from historical measurement signals to enable probabilistic system regulation.
Impedance compensation filter reduces magnitude and shifts resonance peak of virtual synchronous machine output to eliminate grid interaction issues.