Wind Turbine Directional Cutout Control for Damage-Aware Power Output
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Solution Overview
Problem
Existing wind power generation systems fail to maximize power generation while minimizing component damage due to varying wind conditions, particularly in mountainous areas where turbulence intensity and windshear vary by direction, leading to unresolved power losses and component failures.
Innovation Solution
A control support system and method that calculates and displays wind speed thresholds for each direction based on a damage database, considering wind-condition parameters like turbulence intensity and windshear, to optimize operation and reduce component damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wind speed threshold is calculated from the difference between fatigue equivalent load and reference load for each wind direction, then component damage is avoided, but the total power generation amount is not maximized
Solution Approach 1:
The patent applies dynamics by transitioning from static, pre-determined cutout wind speeds to dynamic, real-time wind speed thresholds that adapt to current wind conditions. The control support system continuously calculates optimal thresholds based on actual turbulence intensity and windshear measurements, allowing the wind turbine to operate safely at higher speeds when conditions permit, thereby maximizing power generation while avoiding component damage.
Solution Approach 2:
The patent implements parameter changes by using real-time measurements of turbulence intensity and windshear to dynamically adjust the wind speed threshold. Instead of using fixed reference loads from preliminary examinations, the system modifies operational parameters based on actual wind conditions, enabling optimized power generation that adapts to varying environmental factors.
2Duration of action of stationary object
If sector management is implemented with fixed cutout wind speeds for each wind direction, then component life is extended, but power generation is reduced due to conservative operation limits
Solution Approach 1:
The system transforms fixed, conservative cutout wind speeds into dynamic thresholds that respond to real-time wind conditions. By continuously monitoring turbulence intensity and windshear, the control support system adjusts operational limits adaptively, allowing the wind turbine to operate at higher speeds when conditions are favorable while maintaining component protection, thus resolving the conflict between extending component life and maximizing power generation.
Solution Approach 2:
The patent implements feedback by using real-time measurements of wind conditions (turbulence intensity, windshear) to continuously adjust the wind speed threshold. The control support system receives feedback from sensors monitoring the actual wind environment and modifies operational parameters accordingly, enabling the system to extend component life through protective measures while simultaneously maximizing power generation by operating at optimal speeds based on current conditions.
Data Source
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AI summary
Provided are a control support system for a wind power generation apparatus and a control support method for a wind power generation apparatus capable of minimizing component damage and maximizing the power generation amount. A control support system 1 for a wind power generation apparatus is a control support system 1 for a wind power generation apparatus 101 including at least one wind power generation apparatus 101 and a calculation processing unit 104. The calculation processing unit 104 includes: a damage database creation unit 108 configured to create a database of a damage degree that is caused in the wind power generation apparatus 101 with respect to a wind-condition parameter; a calculation unit of damage degree per power generation amount 110 configured to calculate a damage degree per power generation amount based on wind-condition data and operation data of the wind power generation apparatus 101; an input unit 109 configured to receive input of a use period and a damage degree upper limit value of the wind power generation apparatus 101; and a calculation unit of wind speed threshold for each wind direction 112 configured to calculate a wind speed threshold for operating the wind power generation apparatus 101 for each wind direction based on the database 401 of the damage degree and the use period and the damage degree upper limit value of the wind power generation apparatus 101.