Battery Rack Ethernet Ring Network for Stable Pack Communication
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Solution Overview
Problem
The complexity of communication networks between multiple secondary batteries increases production costs and complicates network formation, leading to potential interruptions in electrical signal transmission.
Innovation Solution
An energy storage system and battery pack with an ethernet-based network that reduces complexity by using multiple channels and connection lines to form a ring network, ensuring stable communication even if one channel is interrupted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a communication network is formed between multiple secondary batteries, then communication between battery racks is enabled, but network complexity increases and production costs increase
Solution Approach 1:
The communication network is segmented into multiple independent channels (first channel and second channel) between battery racks. Each channel can operate independently, allowing the system to maintain communication functionality even when one channel fails. This segmentation reduces the risk of complete network failure and simplifies the overall network design by dividing it into manageable, redundant pathways.
Solution Approach 2:
The system incorporates a spare communication port and backup connection lines before any failure occurs. When the first communication channel is interrupted, the system can automatically switch to the second channel through the spare port, providing beforehand cushioning against communication failures. This proactive design ensures continuous operation without requiring complex real-time decision-making.
2Reliability
If a communication network is formed between multiple secondary batteries, then communication between battery racks is enabled, but production costs increase
Solution Approach 1:
The second communication channel and spare port are designed with the same specifications and functionality as the first channel, allowing them to serve as universal backups. This multi-functionality means the same hardware components can serve both primary and backup roles, reducing the need for specialized expensive equipment and simplifying manufacturing procurement.
Solution Approach 2:
The system uses identical communication parameters and protocols for both channels, allowing for standardized manufacturing and interchangeability of components. By maintaining consistent parameters across all communication interfaces, the system reduces manufacturing complexity and cost while ensuring reliable operation.
3Reliability
If communication channels are interrupted, then network stability is compromised, but complex network formation is required to maintain stability
Solution Approach 1:
The spare communication port and second channel are pre-configured and ready for immediate use before any interruption occurs. The physical connections and communication protocols are established in advance, so when the first channel fails, the system can switch to the backup channel without requiring complex real-time network reconfiguration or decision-making algorithms.
Solution Approach 2:
The second communication channel is created as a duplicate copy of the first channel, with identical hardware specifications and communication protocols. This copying approach simplifies network formation because the backup channel can be implemented using the same standardized components and procedures as the primary channel, reducing the complexity of network design and deployment.
Data Source
AI summary
An energy storage system of disclosed technology include: a plurality of battery racks, each of the plurality of battery racks structured to support a plurality of battery cells; a management controller configured to be in communication with and to control the battery cells in the plurality of battery racks; and one or more connection lines configured to connect the management controller to the plurality of battery racks to form a network.