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Methods and systems for feedforward control of wind turbines

A wind turbine and control parameter technology, applied in the direction of wind engine control, control system type, control system use, etc., can solve problems such as mechanical loading of wind turbines

Active Publication Date: 2018-01-09
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Unfortunately, aggressive braking can lead to mechanical loading of wind turbines

Method used

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  • Methods and systems for feedforward control of wind turbines
  • Methods and systems for feedforward control of wind turbines
  • Methods and systems for feedforward control of wind turbines

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Embodiment Construction

[0052] Embodiments of systems and methods for monitoring and controlling the operation of wind turbines are presented. In particular, the use of the systems and methods proposed below allows feedforward control of wind turbines, thus facilitating avoiding any violation of extreme design constraints. Furthermore, wind turbine control is based on wind preview parameters, which in turn leads to a significant reduction in false alarms for constraint violations.

[0053] The term "operating parameter" as used herein means any electrical, mechanical or physical parameter of the wind turbine, wind farm, or grid when the wind turbine supplies electricity to the grid. The term'constrained parameter space' means a multi-dimensional area defined by a subset of operating parameters. The term'constraint parameters' means a subset of operating parameters corresponding to the constraint parameter space. The terms'extreme event' and'extreme turbine event' are used equivalently and interchangea...

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Abstract

A method for constrained control of a wind turbine includes receiving a plurality of operating parameters corresponding to the wind turbine. The plurality of operating parameters includes a wind preview parameter and a plurality of constraint parameters. The method further includes generating a constraint parameter estimate corresponding to a future time instant for at least one constraint parameter of the plurality of constraint parameters based on the plurality of operating parameters and a wind preview model. The method also includes predicting an extreme event corresponding to the at leastone constraint parameter based on the constraint parameter estimate. The method includes determining a control parameter value corresponding to a wind turbine control parameter among a plurality of wind turbine control parameters. The method also includes operating the wind turbine using a feedforward control technique based on the control parameter value to circumvent the extreme event.

Description

Technical field [0001] The embodiments of the present specification generally relate to a system and method for controlling a wind turbine, and more specifically to a system and method for feedforward control of a wind turbine based on predicted extreme events. Background technique [0002] Wind turbines designed to provide electrical energy to the grid are becoming increasingly important as a source of renewable energy generation, and wind turbine technology is increasingly being used in large-scale power generation applications. Maximizing energy output while minimizing the load on wind turbines in changing wind conditions is a challenge in wind energy utilization. [0003] Typically, wind turbines include at least one rotor mounted on a shell positioned on the top of a tower. In addition, the rotor includes one or more blades. The rotor blades convert wind energy into rotational energy, which drives a generator that is operatively coupled to the rotor. Under certain condition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04
CPCF03D7/0224F03D7/043F03D7/045F05B2260/821F05B2270/1011F05B2270/404F03D9/255F05B2260/84F05B2270/8042F05B2270/806Y02E10/72F03D7/0264F03D7/0296
Inventor A.S.德什潘德P.阿加瓦尔C.B.谢恩
Owner GENERAL ELECTRIC CO
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