UPS Inverter Command Holder for Communication Failure
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Solution Overview
Problem
Conventional uninterruptible power supply systems experience a decrease in power supply capacity when communication between the operation board and uninterruptible power supply modules is abnormal, leading to potential malfunctions and insufficient power to the load.
Innovation Solution
The system includes a holder that stores commands for the inverter, allowing the uninterruptible power supply to operate based on previous commands before communication abnormalities occur, and includes a mechanism to switch to a stopped uninterruptible power supply when communication issues arise, ensuring continuous operation and reducing power supply capacity decreases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the uninterruptible power supply operates based on real-time communication commands from the operation board, then the power supply capacity is maintained at optimal levels, but when communication abnormalities occur, the system must stop operation which causes power supply capacity to decrease
Solution Approach 1:
The holder pre-stores multiple operation commands (first operation command, second operation command, third operation command) before communication abnormalities occur. When communication fails, the system immediately switches to using these pre-stored commands without interruption, thereby maintaining power supply capacity while ensuring reliability during communication abnormalities.
2Stability of the object's composition
If the system stops operation when communication abnormalities occur, then system stability is maintained, but power supply capacity decreases significantly
Solution Approach 1:
The system dynamically switches between different operation modes based on communication status. During normal communication, it uses real-time commands from the operation board. When communication abnormalities are detected, it automatically transitions to using pre-stored commands from the holder, and can further switch to standby power supply modes, thereby maintaining both stability and continuity adaptively.
3Reliability
If multiple operation commands are pre-stored in the holder, then power supply continuity is maintained during communication abnormalities, but device complexity increases
Solution Approach 1:
The holder stores multiple operation commands in sequence (first, second, third operation commands) that can be discarded and recovered as needed. When communication is normal, earlier commands are used and subsequent commands are prepared. When communication fails, the system recovers by sequentially using the next available pre-stored command, maintaining continuity without requiring complex real-time processing during abnormalities.
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
This solution significantly reduces or prevents decreases in power supply capacity and reliability issues by enabling the uninterruptible power supply to operate stably even during communication abnormalities, ensuring consistent power delivery to the load.
Implementation Method 1
a converter that converts AC power supplied from the AC power supply into DC power
Implementation Method 2
an inverter that converts the DC power supplied from the converter or the power storage into AC power
Data Source
AI summary
In an uninterruptible power supply system, an uninterruptible power supply operates based on a command to an inverter held in a holder before an abnormality occurs in communication when the abnormality occurs in the communication between an operation board and the uninterruptible power supply.