Wind Farm Output Control for Blade Contamination and Aging
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Solution Overview
Problem
Wind power generators in wind power plants experience reduced generation quantity due to contamination, weather changes, and aging, leading to inefficiencies and the need for effective control methods to maintain stable power output.
Innovation Solution
A method involving real-time monitoring of weather conditions and contaminant attachment on blades, using sensors to analyze reduction factors, and adjusting blade surface roughness, tilt angles, and rotor current to optimize performance and increase generation quantity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If wind power generators are installed in specific areas with sufficient wind resources, then power generation capability is improved, but generation quantity is reduced when dust or alien substances adhere to the generators
Solution Approach 1:
The control device performs preliminary actions by monitoring generation quantities and detecting contamination factors before significant performance degradation occurs. When dust or alien substances are detected on blades, the system proactively adjusts blade pitch angles or rotor speeds to compensate for the contamination effects, preventing further generation quantity reduction rather than reacting after performance has already declined
Solution Approach 2:
The control device changes operational parameters such as blade pitch angle and rotor speed in response to detected contamination. By adjusting these parameters, the system compensates for the increased resistance and reduced aerodynamic efficiency caused by dust or alien substances on the blades, thereby maintaining generation quantity despite the presence of contaminants
2Reliability
If multiple wind power generators are installed to maintain uniform total generation quantity, then system reliability is improved, but individual generator performance degrades due to contamination and weather changes
Solution Approach 1:
The control device implements feedback control by continuously monitoring the generation quantity of each individual wind power generator and comparing it against expected performance levels. When contamination or weather changes cause generation quantity to drop, the system receives feedback about this deviation and automatically adjusts operational parameters to restore performance, ensuring both individual generator productivity and overall system reliability are maintained
Solution Approach 2:
The system dynamically adjusts the operational parameters of each generator based on real-time conditions. Rather than using fixed settings, the control device continuously modifies blade pitch angles and rotor speeds in response to changing environmental conditions and contamination levels, allowing each generator to adapt to its specific operating conditions and maintain optimal performance
3Productivity
If generation quantity control is implemented to address contamination, then generation quantity is improved, but system complexity increases due to additional monitoring and control requirements
Solution Approach 1:
The control device performs multiple functions using a single integrated system. It simultaneously monitors generation quantity, detects contamination factors, analyzes reduction causes, and adjusts operational parameters - combining what could be separate specialized systems into one multi-functional unit. This reduces overall system complexity while achieving comprehensive generation quantity control
Solution Approach 2:
The patent combines the monitoring, detection, analysis, and control functions into an integrated system. The control device merges the roles of performance monitoring, contamination detection, and operational adjustment into a single coordinated unit, simplifying the system architecture while maintaining the ability to address generation quantity reduction from multiple causes
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for precise control of wind power generation, enhancing efficiency and maintaining stable power output by addressing contamination and aging-related reductions, thereby improving overall plant performance.
Implementation Method 1
wind power is converted into mechanical energy by rotating a rotor using the aerodynamic characteristic of kinetic energy in the flow of air
Implementation Method 2
induction electricity generated by the mechanical energy is supplied to a power system
Data Source
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AI summary
Disclosed is a method of controlling the generation quantity of a wind power plant. In accordance with an embodiment of the present invention, a method of controlling the generation quantity of a wind power plant includes monitoring the generation state of the wind power plant including a plurality of wind power generators, analyzing the generation quantity reduction factor of a wind power generator that has a reduced generation quantity and that belongs to the plurality of wind power generators if the generation quantity of the wind power generator is reduced, and individually controlling the generation quantity of the wind power generator having the reduced generation quantity based on the analyzed reduction factor so that the generation quantity is increased.