Abstract:
Methods and systems for improving stall controlled wind turbine effectiveness by accurately determining wind speed without using an anemometer or other independent wind speed measuring device. Wind speed may be determined, among other methods, by tracking a mapped TSR model with respect to an operating stall controlled wind turbine in a given TSR range; decreasing a Ramp Start RPM value upon reaching a maximum desired power level and by following a mapped RPM into ramp (the control going into RS) for the desired wind speed range; upon reaching a desired RPM level, raising the RPM with power; and/or using periodic unloading of the rotor. The wind speed information may be utilized to control wind turbine parameters.
Abstract:
Methods and systems for improving stall controlled wind turbine effectiveness by accurately determining wind speed without using an anemometer or other independent wind speed measuring device. Wind speed may be determined, among other methods, by tracking a mapped TSR model with respect to an operating stall controlled wind turbine in a given TSR range; decreasing a Ramp Start RPM value upon reaching a maximum desired power level and by following a mapped RPM into ramp (the control going into RS) for the desired wind speed range; upon reaching a desired RPM level, raising the RPM with power; and/or using periodic unloading of the rotor. The wind speed information may be utilized to control wind turbine parameters.
Abstract:
Control features for a wind turbine that control the turbine over a range of wind speeds and under triggering conditions with reduced noise, cost, and reliability issues associated with other such controls. Control is accomplished via control electronics, which adjust the torque produced by the electrical output generation device (e.g., alternator) within the wind turbine. During normal operation, torque is adjusted for optimum aerodynamic performance and maximum output of power. In winds above rated power, the control circuit regulates torque to lower aerodynamic performance, as necessary to maintain desired power level output. In triggering conditions, such as during simultaneous control circuit failure and loss of some portion of the electrical output generation device in extreme winds, wind turbine control is accomplished by increasing torque (e.g., via a separate controller) from the electrical output generation device via shorting of windings, so as to cause retardation of blade rotation.
Abstract:
Systems, devices, and methods are provided for leveling and monitoring a wind turbine tower. An exemplary system may comprise an accelerometer, signal transfer device, signal receiving device and signal display device. In an exemplary embodiment, the system is installed at or near the top of the wind turbine tower. The system maybe permanently installed. The installer may adjust tower mounting nuts to level the tower based on the display device information. In another exemplary embodiment, the system may be used for monitoring tower vibration during wind turbine operation and measuring wind speed during wind turbine operation.
Abstract:
Systems, devices, and methods are provided for leveling and monitoring a wind turbine tower. An exemplary system may comprise an accelerometer, signal transfer device, signal receiving device and signal display device. In an exemplary embodiment, the system is installed at or near the top of the wind turbine tower. The system maybe permanently installed. The installer may adjust tower mounting nuts to level the tower based on the display device information. In another exemplary embodiment, the system may be used for monitoring tower vibration during wind turbine operation and measuring wind speed during wind turbine operation.
Abstract:
Control features for a wind turbine that control the turbine over a range of wind speeds and under triggering conditions with reduced noise, cost, and reliability issues associated with other such controls. Control is accomplished via control electronics, which adjust the torque produced by the electrical output generation device (e.g., alternator) within the wind turbine. During normal operation, torque is adjusted for optimum aerodynamic performance and maximum output of power. In winds above rated power, the control circuit regulates torque to lower aerodynamic performance, as necessary to maintain desired power level output. In triggering conditions, such as during simultaneous control circuit failure and loss of some portion of the electrical output generation device in extreme winds, wind turbine control is accomplished by increasing torque (e.g., via a separate controller) from the electrical output generation device via shorting of windings, so as to cause retardation of blade rotation.
Abstract:
A variable voltage and frequency output wind turbine (20) Variations of the wind turbine (20) include use of a slotless alternator (32) to reduce alternator noise, a high power AC output to facilitate transmission of the output over extended distances, AC to DC converters and DC to AC converters (40), and sensors for systems and devices to receive the wind turbine output and to allow matching of the output to the receiving devices and system Other features include a removable hatchcover (30) for dissipating heat from components contained in the turbine or attached to the hatchcover (30), a swept blade design (24) to reduce blade-produced noise, and power storage components (72) for storing and intermittently using energy stored as a result of wind turbine (20) power generation
Abstract:
A variable voltage and frequency output wind turbine. Variations of the wind turbine include use of a slotless alternator to reduce alternator noise, a high power AC output to facilitate transmission of the output over extended distances, AC to DC converters and DC to AC converters, and sensors for systems and devices to receive the wind turbine output and to allow matching of the output to the receiving devices and system. Other features include a removable hatchcover for dissipating heat from components contained in the turbine or attached to the hatchcover, a swept blade design to reduce blade-produced noise, and power storage components for storing and intermittently using energy stored as a result of wind turbine power generation.