Storage-Charging System Testing via BMS-EMS Communication Validation
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Solution Overview
Problem
The challenge of fully testing integrated storage and charging systems before market deployment to ensure normal operation is unresolved.
Innovation Solution
A comprehensive testing method and system that includes testing energy storage and charging functions, communication between battery management and energy management units, and various charging modes, ensuring reliability and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If comprehensive testing of integrated storage and charging systems is performed, then reliability is improved, but device complexity increases
Solution Approach 1:
The testing system is divided into functional modules: communication function testing module, energy storage function testing module, and charging function testing module. Each module independently tests specific functions, allowing comprehensive testing while maintaining manageable complexity through modular architecture.
Solution Approach 2:
The testing system is designed to perform multiple testing functions through a unified platform that can test communication protocols, energy storage operations, and charging operations. This multi-functional approach consolidates what would otherwise require separate testing systems, improving reliability without proportionally increasing complexity.
2Adaptability or versatility
If multiple charging modes are tested, then adaptability is improved, but testing time increases
Solution Approach 1:
The communication function testing is performed first to establish baseline connectivity and data exchange between the battery management unit and energy management system. This preliminary testing enables subsequent energy storage and charging function tests to proceed more efficiently by ensuring communication pathways are already validated.
Solution Approach 2:
The system tests three distinct charging modes (AC-DC converter only, energy storage apparatus only, and combined charging) to cover all operational scenarios. By implementing comprehensive coverage of charging modes, the system ensures adaptability while the modular structure prevents excessive time consumption through efficient test execution.
Data Source
Figure 1~2
Figure 3~4
AI summary
The present disclosure discloses a testing method and a testing system for a storage and charging system, wherein a tester acquires first charging data about that an energy management system instructs an AC-DC converter to charge an energy storage apparatus in a case that the remaining power of the energy storage apparatus is less than or equal to a first threshold, and determines whether an energy storage function of the storage and charging system is normal; acquires second charging data about that the energy management system controls the AC-DC converter and/or the energy storage apparatus to charge a device to be charged in a case that the device to be charged is connected to the charging conversion apparatus, and determines whether a charging function of the storage and charging system is normal. The energy storage function and the charging function are tested in a case that a communication function between a battery management unit and the energy management system passes testing. The testing of the communication function is completed based on message data received by the energy management system and message data transmitted by the battery management unit, thus achieving the effective testing of the function of the storage and charging system and improving the use reliability of the storage and charging system.