Cluster Control Server for Energy Storage Distribution
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Solution Overview
Problem
Energy storage systems (ESS) face challenges in efficiently managing energy storage and distribution due to limitations in charging capacity and the need for separate management systems, which hinder continuous operation and power consumption satisfaction without external power systems, and diminish operational efficiency.
Innovation Solution
A control system for an energy storage cluster that includes a cluster control server distributing energy between ESSs based on individual energy levels, comprising an ESS management device for charging and discharging control, a load management device for energy consumption analysis, and an energy supply management device for determining and managing energy distribution between ESSs, forming clusters by zones to optimize energy usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the charging capacity of ESS is increased, then the energy storage amount is improved, but the cost of ESS equipment increases
Solution Approach 1:
The patent divides the energy storage system into multiple ESS units organized in clusters, where each unit can be independently sized and managed. This allows the system to achieve large total storage capacity through aggregation of multiple smaller, more cost-effective units rather than relying on a single large-capacity ESS with prohibitively high costs.
2Ease of operation
If separate management systems (BMS and HEMS) are used for ESS operation and load energy management, then specialized control is achieved, but the overall operational efficiency is diminished
Solution Approach 1:
The patent integrates the BMS and HEMS into a unified energy management framework where the cluster control server coordinates both ESS operation and load management. This merged approach enables centralized optimization of energy flows, allowing the system to achieve both specialized control functions and improved overall operational efficiency through coordinated decision-making.
3Adaptability or versatility
If a single ESS is used without external power system, then system independence is improved, but the ability to satisfy continuous power consumption requirements deteriorates
Solution Approach 1:
The patent employs multiple ESS units clustered together to provide redundancy and extended operational capacity. This segmentation allows the system to maintain independence from external power systems while achieving continuous power satisfaction through the combined storage capacity and coordinated operation of multiple ESS units.
Solution Approach 2:
The system dynamically adjusts operational parameters such as charging/discharging rates and energy distribution strategies based on real-time conditions. This enables the independent ESS cluster to optimize its performance and maintain reliable continuous power supply by adapting to varying consumption requirements and state-of-charge levels.
Data Source
AI summary
Provided a cluster control system which controls energy storage systems (ESSs) within the cluster and a method for distributing energy among the ESSs in the cluster. The control system includes: ESSs which are provided in a consumption facility or a building and which supply power to respective loads in the facility or building; and a cluster control server distributing energy between the ESSs in the cluster based on an energy level with respect to stored energy amounts of the ESSs. Energy in a cluster in which a plurality of distributed ESSs are grouped is efficiently distributed to a predetermined zone partitioned by the cluster such that the cluster may mange the energy independent of supply of the energy from an external power system.