Modular Energy Storage Node Control via Segmentation
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Solution Overview
Problem
Existing energy storage systems lack modular and scalable solutions for managing and optimizing battery performance across multiple nodes in energy storage facilities, particularly in scenarios requiring peak-shaving, emergency power, and system stability control.
Innovation Solution
A modular power storage and distribution system comprising multiple nodes, each with a storage subsystem, control subsystem, and power subsystem, connected via a unit control subsystem that monitors and manages battery health and performance, and prioritizes power distribution based on weighted parameters to form optimized power units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a modular node-based system is implemented, then adaptability and scalability are improved, but device complexity increases
Solution Approach 1:
The energy storage system is divided into multiple independent nodes, each containing a battery module, power conversion device, and control device. Each node operates autonomously while contributing to the overall system functionality, enabling flexible configuration and scaling without increasing overall system complexity
Solution Approach 2:
Each node is designed with universal interfaces and standardized communication protocols, allowing the same node design to serve multiple functions and be deployed in various configurations. The control device within each node can manage multiple battery modules, and nodes can be dynamically added or removed based on power requirements
2Measurement precision
If multiple nodes are monitored and managed individually, then measurement precision of battery state is improved, but loss of time in data processing increases
Solution Approach 1:
Multiple control devices from different nodes are logically combined into a unified control architecture where the system controller aggregates data from all nodes and coordinates their operation. This merging allows centralized processing of battery state information, maintaining high measurement precision while reducing overall processing time through parallel data collection and centralized decision-making
3Adaptability or versatility
If preference profiles with multiple parameters are used for each node, then adaptability to different applications is improved, but device complexity increases
Solution Approach 1:
The system uses preference profiles that define adjustable parameters for each node, such as charge/discharge rates, voltage thresholds, and operational priorities. These parameters can be dynamically modified based on application requirements (peak-shaving, emergency power, stability control) without changing the physical hardware, allowing the same node configuration to adapt to different scenarios through software parameter adjustment
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and scalable energy management across multiple nodes, optimizing battery performance and health, and ensuring reliable power distribution in various applications by self-assembling and prioritizing nodes based on importance and availability.
Implementation Method 1
the power subsystem includes a power converter which converts AC power to DC power when the at least one battery is being charged, and converts DC power to AC power when the at least one battery is being discharged
Data Source
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AI summary
A control subsystem configured to control transferring of power, including: an AC/DC power supply; an uninterruptable power supply; a processor; an Ethernet switch; a first communication interface configured to send and/or receive data from a battery management unit that monitors a storage subsystem including one or more batteries; a first transfer interface configured to transmit power to the storage subsystem; a second communication interface configured to send and/or receive data from a power subsystem that includes a power converter, and the power subsystem is configured to be connected to a power line; and a second transfer interface configured to transmit power to the power subsystem, wherein the processor is configured to send signals which control the charging and discharging of at least one battery of the one or more batteries in the storage subsystem.