Centralized Wind Farm Power Coordination for Grid Stabilization
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Solution Overview
Problem
Decentralized control of wind farms makes it difficult to stabilize the electrical supply network effectively, as individual wind farms may interfere with each other due to measurement inaccuracies and time offsets, leading to reduced control potential and potential counterproductive behavior.
Innovation Solution
A method where multiple wind farms are coordinated through a central control unit to feed their collective power into the electrical supply network, reducing decentralized control and ensuring coordinated support, with the central unit managing total power input and adjusting based on network conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple wind farms are operated with decentralized control, then each wind farm can independently feed power into the grid, but the control potential for stabilizing the grid is reduced and interference between wind farms occurs
Solution Approach 1:
The patent merges multiple decentralized wind farm control systems into a single centralized control system. The central control unit aggregates control signals for multiple wind farms, enabling coordinated operation that enhances grid stabilization capability while eliminating interference between individually controlled wind farms.
2Reliability
If a central control unit coordinates multiple wind farms, then control potential for grid stabilization is enhanced, but the complexity of the control system increases
Solution Approach 1:
The central control unit is designed to perform multiple functions: it controls multiple wind farms, aggregates control signals, communicates with the grid operator, and provides grid stabilization. This multi-functionality consolidates what would otherwise require multiple separate control systems, managing complexity through integration rather than proliferation of components.
3Power
If wind farms are distributed over a large area, then renewable energy generation is increased, but regulatory intervention becomes difficult to manage
Solution Approach 1:
The central control unit serves as an intermediary between geographically distributed wind farms and the grid operator. It receives regulatory signals from the grid operator and distributes coordinated control commands to multiple wind farms across a large area, making regulatory intervention manageable despite the decentralized physical distribution of generation assets.
Data Source
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AI summary
The invention relates to a method for feeding electrical power (PS) into an electric supply network (120) using at least one first and one second wind farm (112). A first electrical farm power (PP1) is provided by the first wind farm (112) for feeding into the electric supply network (120) and a second electrical farm power (PP2) is provided by the second wind farm (112) for feeding into the electric supply network (120), and a total power (PS) comprising at least the first and second farm powers (PP1,PP2) is produced and is fed into the electric supply network (120), wherein a central control unit (2) for controlling the total power which has been fed in controls the provision of the at least first and second farm powers (PP1,PP2).