Wind Park Energy Storage Coordination for Grid and Turbine Support
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Solution Overview
Problem
Energy storage systems in wind parks are limited to specific use cases due to varying performance requirements, leading to high hardware and maintenance efforts, and require significant space, especially in offshore installations.
Innovation Solution
A method to operate a plurality of energy storage systems in a wind park as a combined system, allowing them to provide electrical energy to wind turbines and the grid, emulating higher performance specifications by optimizing storage and power distribution based on system state information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If energy storage systems are dimensioned for high power or capacity specifications to meet performance requirements, then the system can serve multiple use cases, but the hardware effort, maintenance effort, and space requirements increase significantly
Solution Approach 1:
The patent segments a single large-capacity energy storage system into multiple smaller energy storage systems distributed across different wind turbines. Each small system (e.g., 0.25 MW/0.15 MWh) is dimensioned for individual turbine support, but collectively they provide the equivalent functionality of a large centralized system. This segmentation reduces hardware complexity and maintenance burden while maintaining adaptability.
Solution Approach 2:
The patent combines multiple small energy storage systems into a coordinated network that functions as a unified resource. By merging control of distributed small systems, the wind park achieves the performance specifications of a large energy storage system without the corresponding hardware complexity. The combined system can buffer produced energy and provide grid services collectively.
2Adaptability or versatility
If energy storage systems are dimensioned for high power or capacity specifications to meet performance requirements, then the system can serve multiple use cases, but the space requirements increase significantly, especially in offshore wind parks
Solution Approach 1:
The patent distributes energy storage capacity across multiple wind turbines rather than concentrating it in a single large system. Each turbine hosts a small energy storage system (e.g., 0.25 MW/0.15 MWh), which occupies minimal space at its location. The cumulative capacity across all turbines provides the required performance specifications without requiring a large centralized space.
3Adaptability or versatility
If multiple differently dimensioned energy storage systems are deployed to meet different use cases, then specific performance requirements are met, but the control system complexity increases
Solution Approach 1:
The patent employs small energy storage systems with standardized dimensions (e.g., 0.25 MW/0.15 MWh) that can perform multiple functions depending on operational context. Each system can provide auxiliary power to its associated turbine, buffer energy, or contribute to grid services. This universal design across all small systems simplifies control compared to managing multiple differently-dimensioned systems with specialized functions.
4Adaptability or versatility
If conventional energy storage systems with high power or capacity specifications are used, then performance requirements are met, but the maintenance effort increases
Solution Approach 1:
The patent divides a large energy storage system into multiple small modular units distributed across wind turbines. Each small system (e.g., 0.25 MW/0.15 MWh) has simpler maintenance requirements compared to a large centralized system. If one small system requires maintenance, it can be serviced independently without affecting the entire energy storage capacity, thus reducing overall maintenance effort and improving ease of repair.
Data Source
AI summary
A method of controlling an operation of energy storage systems of a wind park is provided. The wind park includes a plurality of energy storage systems each of which is associated with a wind turbine comprised by the wind park. Further, each of the plural energy storage systems is configured to be operable to provide electrical energy to an auxiliary system of the associated wind turbine. The method includes obtaining for each of the energy storage systems storage system state information indicating an availability of the energy storage system to store and/or provide electrical energy and operating the plural energy storage systems as a combined energy storage system based on the obtained storage system state information. The method further includes controlling the providing of electrical energy from the combined energy storage system and/or the storing of electrical energy in the combined energy storage system.