Wind Farm Control System Synchronizing Turbine Output with Wind Arrival
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Solution Overview
Problem
Wind farms face challenges in predicting wind conditions and optimizing power generation across multiple turbines, leading to inefficiencies in energy production and increased maintenance costs due to the unpredictability of wind strength and direction, as well as inter-turbine interference.
Innovation Solution
A method and system for controlling a wind farm by measuring wind conditions, calculating demanded generation quantities for each turbine based on real-time data, and adjusting power output to synchronize with wind arrival times, considering wake effects from other turbines to minimize mechanical loads and optimize energy production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wind turbines are controlled to maximize energy production, then power generation efficiency is improved, but mechanical load on equipment increases leading to higher maintenance costs
Solution Approach 1:
The system performs preliminary prediction of wind conditions and power generation for each turbine before actual operation. By calculating predicted wind conditions, predicted power generation, and predicted mechanical loads in advance, the control system can optimize power distribution to maximize energy production while keeping mechanical loads within acceptable ranges, thereby preventing excessive wear and maintenance needs
Solution Approach 2:
The system continuously monitors actual wind conditions, actual power generation, and actual mechanical loads, then compares these with predicted values. Based on this feedback, the control system adjusts the demanded generation quantity for each turbine in real-time, enabling dynamic optimization that balances energy production with equipment protection
2Measurement precision
If wind conditions are predicted accurately for each turbine, then power generation control is optimized, but system complexity increases
Solution Approach 1:
The system divides the wind farm into individual turbine units, each with its own predicted wind conditions, power generation, and mechanical load calculations. By segmenting the control problem into turbine-specific predictions and optimizations, the system achieves precise control for each unit while managing overall complexity through modular processing of multiple independent but interconnected elements
Solution Approach 2:
The system transforms complex wind farm control into manageable parameters by focusing on predicted wind conditions, predicted power generation, and predicted mechanical loads for each turbine. These key parameters are calculated and adjusted dynamically, simplifying the control problem while maintaining prediction accuracy through systematic parameter management
3Productivity
If real-time control is implemented for each turbine, then energy production is maximized, but response time requirements increase system demands
Solution Approach 1:
The system calculates predicted wind conditions, predicted power generation, and predicted mechanical loads in advance before real-time control is needed. This preliminary calculation creates a ready framework that enables rapid real-time adjustments without requiring complex computations at the moment of control action, thus maximizing power generation while meeting response time requirements
Data Source
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AI summary
A method for controlling a wind farm and a system applying the same are provided. The method for controlling the wind farm includes: measuring a wind condition of a wind to enter a wind farm including a plurality of wind turbines, calculating a demanded generation quantity for each of the wind turbines to satisfy a total generation quantity demanded of the wind farm based on the measured wind condition information, and controlling each of the wind turbines to generate power according to the demanded generation quantity calculated for each of the wind turbines at a time corresponding to a location of each of the wind turbines. Therefore, the wind farm control system can synchronize each of the plurality of wind turbines with an appropriate time and can allocate the demanded generation quantity to each of the wind turbines.