Wind Turbine Controller Gain Adjustment for Flow Regulation Defects
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Solution Overview
Problem
Modern wind turbine control systems face challenges in providing effective safe modes of operation due to increasing complexity, particularly in managing adaptive flow regulating systems and pitch angle regulation efficiently, especially when these systems experience defects or inefficiencies.
Innovation Solution
A method and system that utilize multiple controllers to dynamically adjust gain values based on the operational efficiency of adaptive flow regulating and pitch regulating systems, allowing the pitch regulating system to compensate for inefficiencies in the adaptive flow regulating system, ensuring continued operation and safety of the wind turbine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple controllers are used to manage adaptive flow regulating system and pitch regulating system, then control effectiveness and safety are improved, but device complexity increases
Solution Approach 1:
The patent combines multiple controllers (first controller for adaptive flow regulating system, second controller for pitch regulating system) into a unified control architecture where both controllers operate simultaneously with coordinated gain values. This merging approach allows the system to maintain control effectiveness through redundant control paths while managing complexity through integrated design.
Solution Approach 2:
The patent implements dynamic gain value adjustment where the first gain value and second gain value are continuously modified based on operational conditions and diagnostic values. This dynamic adaptation allows the control system to optimize performance in real-time, maintaining reliability while the automated adjustment mechanism manages the complexity of multi-controller coordination.
2Adaptability or versatility
If gain values are dynamically adjusted based on operational efficiency, then system adaptability and safety are improved, but control system complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where diagnostic values from the adaptive flow regulating system are fed back to adjust gain values dynamically. The first gain value and second gain value are modified based on real-time operational efficiency assessments, enabling the system to adapt to changing conditions automatically while the structured feedback loop manages the complexity of dynamic adjustment.
Solution Approach 2:
The patent changes control parameters (gain values) dynamically based on operational conditions. The first gain value and second gain value are adjusted as parameters respond to diagnostic values and operational efficiency, allowing the system to adapt to varying performance states while the parameter adjustment mechanism itself becomes part of the controlled system rather than adding external complexity.
3Duration of action of moving object
If pitch regulating system compensates for adaptive flow regulating system inefficiencies, then operational continuity is improved, but control system complexity increases
Solution Approach 1:
The patent prepares for potential failures of the adaptive flow regulating system by having the pitch regulating system ready to compensate. The second controller is configured to adjust pitch angles as a compensatory measure when diagnostic values indicate inefficiencies in the adaptive flow regulating system, cushioning against operational interruptions while the pre-configured compensation strategy manages the added control complexity.
Solution Approach 2:
The patent introduces diagnostic values as an intermediary element that monitors the operational efficiency of the adaptive flow regulating system and triggers appropriate compensatory actions. This intermediary measurement and control mechanism enables the pitch regulating system to compensate for inefficiencies in a controlled manner, maintaining operational continuity while the diagnostic intermediary manages the complexity of coordination between systems.
Data Source
AI summary
A method of controlling a wind turbine including a plurality of rotor blades, a first controller for controlling an adaptive flow regulating system having a plurality of individually controllable adaptive flow regulating devices arranged on the rotor blades, and a second controller for controlling a pitch regulating system for regulating a pitch angle of each rotor blade. The method includes (a) determining a diagnostic value indicative of an operational efficiency of the adaptive flow regulating system, (b) determining a first gain value for the first controller and a second gain value for the second controller based on the diagnostic value, (c) applying the first gain value to control signals for the adaptive flow regulating system generated by the first controller, and (d) applying the second gain value to control signals for the pitch regulating system generated by the second controller, is provided.