Automatic Master Slave Battery Pack Identification
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Solution Overview
Problem
Existing methods for identifying master and slave battery packs in large-capacity lithium ion battery energy storage systems require manual configuration, leading to complex and time-consuming processes with low efficiency.
Innovation Solution
A method and device that allows each battery pack to automatically identify the master and slave battery packs using unique identifiers and a communication bus, sorting and designating roles based on identifier order, eliminating the need for manual configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual configuration method is used to identify master and slave battery packs, then the system can establish master-slave relationships, but the configuration process becomes complex and time-consuming with low efficiency
Solution Approach 1:
The battery packs automatically identify themselves as master or slave through self-service mechanisms. Each battery pack detects its own characteristics (such as insertion order, electrical parameters, or unique identifiers) and autonomously determines its role without requiring external manual configuration, thereby eliminating the complex and time-consuming manual setup process while maintaining clear master-slave relationship establishment
Solution Approach 2:
The system performs preliminary actions by pre-defining identification rules and criteria before the battery packs are connected. When battery packs are inserted into the cabinet, the system has already prepared the detection and sorting mechanisms to automatically assign master-slave roles based on predetermined parameters, avoiding the need for post-connection manual configuration and improving overall configuration efficiency
2Productivity
If automatic identification based on sorted identifiers is implemented, then configuration efficiency is improved, but the system must handle dynamic changes when master battery pack is removed
Solution Approach 1:
The system implements a feedback mechanism that continuously monitors the master-slave battery pack configuration status. When the master battery pack is removed, the system detects this change through communication bus signals or electrical connection status, triggers a reconfiguration process, and automatically selects a new master battery pack from the remaining slave packs based on predetermined selection criteria, ensuring system reliability during dynamic changes
Solution Approach 2:
The master-slave configuration system is designed to be dynamic rather than static. The roles of battery packs can be automatically reassigned when changes occur in the system configuration. The system adapts to dynamic changes by implementing automatic detection and reconfiguration protocols that maintain operational reliability even when battery packs are added or removed, transforming the system from a fixed configuration to a flexible, adaptive architecture
Data Source
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AI summary
Embodiments of the present application provide a method and device for identifying a master and slave battery packs. The method includes a first battery pack obtaining, after it is connected to a battery cabinet, its identifier, and receiving identifiers of other battery packs in the battery cabinet through a communication bus. The total number of the battery packs is N, where N is a positive integer. The method may sort the identifiers of the first battery pack and of the other battery pack to obtain a sorted result. The method may identify the master battery pack and slave battery packs among the first battery pack and the other battery packs according to the sorted result. Each of the battery packs connected to a battery cabinet may automatically identify the master battery pack and slave battery packs according to their identifiers, eliminating manual configuration by a user, and improving configuration efficiency.