UPS Switching to Sub Power for Abnormal Input Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing uninterruptible power supply systems face challenges in quickly identifying abnormal power situations, leading to increased maintenance time and costs due to the inability to effectively switch to alternative power sources when main and battery input powers become abnormal.
Innovation Solution
An uninterruptible power supply system that includes a sub power supply device, a battery, and an uninterruptible power supply device with switching units and determining units to assess and switch between main, battery, and sub input powers within predetermined ranges, ensuring stable power delivery and identifying abnormal conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system continuously monitors main input power and battery input power to detect abnormal situations, then the reliability of power supply is improved, but the device complexity increases due to additional determining units and switching mechanisms
Solution Approach 1:
The system performs preliminary monitoring and determination of power quality before switching is needed. The determining unit continuously assesses whether main input power and battery input power are within reference ranges, and the switching unit is pre-configured with multiple power sources (sub power supply device) ready to activate. This preliminary preparation ensures rapid response to abnormalities without requiring complex real-time decision algorithms during critical moments.
Solution Approach 2:
The determining unit acts as an intermediary between power sources and the load device, continuously evaluating power quality and mediating the selection of appropriate power sources. The switching unit serves as another intermediary that physically connects or disconnects power sources based on determination results. This intermediary structure simplifies the overall system by centralizing the monitoring and switching functions in dedicated components rather than distributing complexity throughout the system.
2Loss of time
If the system quickly identifies abnormal power situations through continuous monitoring, then the maintenance time decreases, but the loss of energy increases due to continuous power assessment operations
Solution Approach 1:
When an abnormal situation is detected by the determining unit, the system rushes through the switching operation to restore normal power supply. The switching unit executes rapid connection changes to alternative power sources (sub power supply device) without unnecessary delays. This rushing through the critical switching phase minimizes the time the load device operates with abnormal power, thereby reducing maintenance time and preventing extended energy loss from improper power operation.
3Adaptability or versatility
If the system includes multiple switching units and determining units for comprehensive power management, then the adaptability to different power conditions is improved, but the ease of operation deteriorates due to increased system complexity
Solution Approach 1:
The uninterruptible power supply system operates autonomously without requiring manual intervention. The determining unit continuously self-monitors power conditions and automatically activates the switching unit when abnormalities are detected. The system self-manages the complex switching operations between main input power, battery input power, and sub power supply device based on real-time determination results, eliminating the need for operators to manually control multiple switching mechanisms and making the system easy to operate despite its internal complexity.
Data Source
AI summary
Disclosed is an uninterruptible power supply system, including a sub power supply device configured to supply or cut off sub input power to a load device; a battery configured to supply or cut off battery input power to the load device; and an uninterruptible power supply device that is electrically connected to the sub power supply device and the battery, and when main input power is selectively received and supplied to the load device or the battery input power is selectively received and supplied to the load device, determines whether the main input power and the battery input power are within a predetermined reference main input power range and reference battery input power range, and when the main input power and the battery input power are outside of the reference main input power range and the reference battery input power range, receives the sub input power and supplies the power to the load device.