Power Grid Aggregator Control for Decentralized Peak Balancing
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Solution Overview
Problem
Uncoordinated operation of energy systems in electrical networks leads to power peaks, causing grid overload and necessitating restrictive measures like power feed-in limitations and consent requirements, which hinder the expansion of renewable energy sources and complicate the installation of new equipment.
Innovation Solution
A central aggregator unit collects and aggregates the intended feed-in and exit power services from various energy systems, transmitting a total power value to the network control device to manage and balance the power grid, thereby creating a virtual network connection point that allows for coordinated control and optimization of energy distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If decentralized renewable energy generation is expanded without coordination, then renewable energy capacity increases, but power peaks occur causing grid overload
Solution Approach 1:
The patent merges multiple decentralized energy systems into a single aggregate energy system through a central control unit. This aggregation allows coordinated control of feed-in and consumption across multiple sites, transforming individual uncoordinated power peaks into a balanced aggregate output that maintains grid stability while preserving renewable energy expansion.
Solution Approach 2:
The central control unit receives information about the operational state of multiple energy systems and uses this feedback to coordinate their operation. By monitoring feed-in power, consumption, and storage status across the network, the system dynamically adjusts operations to prevent power peaks while maximizing renewable energy utilization.
2Reliability
If grid control measures are implemented to prevent overload, then grid safety is maintained, but installation of new equipment becomes more difficult
Solution Approach 1:
The patent introduces a central control unit as an intermediary between individual energy systems and the grid operator. This intermediary coordinates operations across multiple sites, allowing new equipment to be installed without requiring complex individual grid approvals, as the aggregate system is managed centrally to ensure safety.
3Adaptability or versatility
If energy systems operate independently, then system autonomy is maintained, but power peaks from multiple systems synchronize causing grid strain
Solution Approach 1:
The patent combines multiple autonomous energy systems into an aggregated system managed by a central control unit. This allows each site to maintain operational flexibility while the central unit coordinates their collective output, preventing synchronized power peaks by balancing feed-in and consumption across the network.
Data Source
Figure 1~2
AI summary
A device (1) for aggregating electrical power within a power grid (2) is proposed, comprising a central aggregator unit (4) with respect to several energy systems i (3). The device (1) is characterized in that the aggregator unit (4) is configured to receive at least one feed-in power Pi;tout and/or output power Pi;tout from each of the energy systems i (3) for a defined time range T, wherein the aggregator unit (4) is further configured to aggregate the received feed-in powers Pi;tin and output powers Pi;tout into a total power Ptagg and to transmit the determined total power Ptagg to a network control device (5) of the power grid (2). The invention further relates to a method for aggregating electrical power within a power grid (2).