Wind Turbine Grid Support via Distributed State Recording
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Solution Overview
Problem
Current wind turbines and wind farms lack the ability to provide proactive, coordinated support to the electrical supply grid, as they do not fully exploit their complex feedback control capabilities, leading to suboptimal management of system states such as voltage, frequency, and environmental conditions.
Innovation Solution
A method is proposed where system states of the electrical supply grid, including voltage, frequency, and environmental conditions, are recorded and transmitted to a central evaluation unit or between wind turbines, enabling coordinated control of the grid through distributed recording and transmission of fundamentally identical system states, allowing for improved control and management of the electrical supply grid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wind turbines operate independently without coordinated control, then individual turbine operation is simple, but the overall support capability for the electrical supply grid is suboptimal
Solution Approach 1:
The patent merges information from multiple distributed wind turbines into a centralized evaluation unit that creates a comprehensive picture of the electrical supply grid. By combining system states from multiple sources and coordinating control actions, the overall grid support capability is enhanced while managing complexity through modular architecture.
Solution Approach 2:
The patent implements feedback mechanisms where system states recorded by wind turbines are transmitted to evaluation units, which then provide coordinated control instructions back to the turbines. This closed-loop feedback enables proactive grid support while maintaining individual turbine simplicity through centralized intelligence.
2Loss of information
If system states are recorded and transmitted from multiple wind turbines, then the information base for grid control is broadened, but the communication and coordination overhead increases
Solution Approach 1:
The patent performs preliminary evaluation of system states at distributed points before central consolidation. Wind turbines and local evaluation units pre-process and filter information, transmitting only relevant data to the central unit. This reduces communication overhead and transmission time while maintaining comprehensive information coverage.
3Adaptability or versatility
If wind turbines use their existing sensors and control options, then no additional hardware is needed, but the potential for complex and sensitive feedback control is not fully exploited
Solution Approach 1:
The patent makes existing wind turbine sensors and control systems multi-functional by using them not only for individual turbine operation but also for recording system states that contribute to centralized grid evaluation. This universal utilization of existing components enhances adaptability without requiring additional hardware.
Solution Approach 2:
The patent implements dynamic control strategies where control instructions are continuously adjusted based on real-time system state information from multiple wind turbines. The coordinated control adapts to changing grid conditions, fully exploiting the feedback potential of existing sensors and control options through dynamic rather than static control parameters.
Data Source
AI summary
A method for assisting control of an electrical supply grid) or a portion thereof is provided. The method includes recording system states of the grid and/or influencing the grid, transmitting the states to a central evaluation and/or control unit and/or between other subscribers, including wind turbines and/or wind farms that supply the grid, for use in controlling their supply to the grid. The method includes controlling the grid on the basis of the transmitted states. Fundamentally identical states are simultaneously recorded at multiple recording locations associated with the grid and the recording of at least one of the states at a respective recording location is performed by a turbine and/or farm and the turbine or farm recording a state at one recording location and the turbine or farm recording a state at another recording location are independent at least such that they supply to the grid at different points.