Wind Turbine Control System Dynamic Operating Limits
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Solution Overview
Problem
Existing wind turbines operate inefficiently due to predefined rated power limits, leading to underutilization of power generation capability, as each mechanical and electrical component has independent operating limitations, resulting in large operational margins.
Innovation Solution
A control system that includes measurement devices and controllers to calculate and adjust operating limits based on component limitations, optimizing power generation by determining the least capable electrical component and adjusting turbine power and speed limits accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If predefined rated power limits are used to ensure component safety, then reliability is improved, but productivity deteriorates due to underutilization of power generation capability
Solution Approach 1:
The patent implements dynamic operating limits that automatically adjust based on real-time component conditions rather than using fixed predefined limits. The control system continuously monitors component parameters and adapts the operating limits accordingly, allowing the wind turbine to operate closer to actual component capabilities while maintaining safety margins only when necessary.
Solution Approach 2:
The patent changes the operating parameters (power limits, speed limits) based on measured component conditions. By monitoring actual component parameters such as temperature, vibration, and load, the system adjusts the operating limits to match the current state of components, enabling higher power extraction when components are in good condition while maintaining protective margins when degradation is detected.
2Reliability
If large operational margins are maintained for each component, then reliability is improved, but productivity deteriorates due to inefficient operation
Solution Approach 1:
The system dynamically adjusts operational margins based on real-time component performance rather than maintaining fixed large margins. By continuously monitoring component health and operating conditions, the control system reduces unnecessary safety margins when components are performing well, thereby increasing operational efficiency while maintaining adequate protection when needed.
Solution Approach 2:
The control system automatically monitors component conditions and self-adjusts operating limits without external intervention. The system serves itself by detecting component status and autonomously optimizing the operational margins, eliminating the need for conservative fixed margins while ensuring component safety through continuous self-monitoring and adaptation.
Data Source
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AI summary
A control system (200) for a wind turbine is provided. The control system includes at least one measurement device (404) configured to measure at least one operating condition of the wind turbine (100). The first controller (202) is configured to calculate an operating limit of the wind turbine based on the measured operating condition, and adjust the operating limit based on a limiting condition of a component (402) of the wind turbine.