Inverter Power Output Selector for Prioritized UPS Distribution
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Solution Overview
Problem
Conventional uninterruptible power supply systems fail to prioritize power distribution during power outages, leading to potential damage and casualties in emergency situations, as all connected appliances receive power simultaneously, including critical facilities like escape routes and ventilation systems that require prioritized power.
Innovation Solution
An inverter structure combining a power source and an uninterruptible power supply device with a power output selector and a constant-current controller, which includes a timer for scheduled power distribution, ensuring that critical facilities like escape routes and ventilation receive power before regular lighting, allowing for stable and prioritized power output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power is supplied to all electrical appliances simultaneously during power outages, then all appliances can operate, but critical facilities cannot receive prioritized power supply which may lead to damage and casualties
Solution Approach 1:
The power output is segmented into multiple channels, each corresponding to different electrical appliance groups. The power output selector divides the single power source into multiple independent output paths, allowing different priority levels to be assigned to different appliance groups. This segmentation enables critical facilities to receive prioritized power supply while non-critical facilities receive power subsequently.
Solution Approach 2:
The power distribution system dynamically adjusts power allocation based on preset conditions and timing. The constant-current controller and timer work together to dynamically switch between different power output configurations, transitioning from simultaneous power supply to prioritized sequential power supply according to the emergency situation and time progression.
2Ease of operation
If power is distributed without priority scheduling, then all appliances receive power at the same time, but critical facilities like escape routes and ventilation systems cannot be ensured first
Solution Approach 1:
The system performs preliminary actions by presetting power distribution priorities and timing sequences before emergencies occur. The constant-current controller is pre-programmed with timing parameters that automatically activate during power outages, ensuring critical facilities receive power first without requiring real-time manual intervention. This preliminary configuration maintains ease of operation while ensuring emergency reliability.
Solution Approach 2:
The power distribution system serves itself by automatically executing prioritized power allocation based on preset conditions. The timer and constant-current controller work autonomously to manage power distribution sequences, eliminating the need for external control during emergencies. The system self-regulates power flow to critical facilities first, then to non-critical facilities, maintaining simplicity while ensuring reliability.
3Reliability
If a timer is added for timed scheduling of power output, then power can be distributed in priority sequences, but the device complexity increases
Solution Approach 1:
The timer function is merged with the constant-current controller into a single integrated control unit. Rather than adding a separate timer device, the timing and current control functions are combined, allowing prioritized power distribution to be achieved through a unified control mechanism. This merging reduces overall system complexity while maintaining the ability to execute timed power allocation sequences.
Data Source
AI summary
An inverter structure includes a power source and an uninterruptible power supply device. The uninterruptible power supply device includes a power output selector and a constant-current controller built therein. The uninterruptible power supply device has an input terminal connected to the power source and output terminals connectable to external electrical appliance facilities via the power output selector and the constant-current controller. When power is supplied from the power source, the power output selector and the constant-current controller built in the uninterruptible power supply device function to effect distribution of power output to the electrical appliance facilities in accordance with preset condition.