Multi-output UPS Power Management via Segmentation
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Solution Overview
Problem
Commercial UPS systems lack the ability to individually switch between Normal Mode and Energy Saving Mode for different loads, resulting in limited functionality and inefficiency in power management, as they either prioritize energy saving or electrical safety but not both simultaneously.
Innovation Solution
A multi-output power management method utilizing a microcontroller, DC to AC inverter, and multi-output selector to automatically or manually switch between bypass and DC to AC inverter output modes based on input power source parameters, allowing for customized AC output to each load under priorities of energy saving or electrical safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the UPS system is set to Energy Saving Mode to reduce power loss, then energy saving effect is improved, but load power protection effect deteriorates
Solution Approach 1:
The patent divides the single UPS output into multiple independent output channels (first output and second output). Each output can be independently controlled to be in either Normal Mode or Energy Saving Mode, allowing different loads to receive different power supply modes based on their specific requirements, thus resolving the contradiction between energy saving and power protection.
Solution Approach 2:
The system dynamically switches between Normal Mode and Energy Saving Mode for different outputs based on real-time monitoring of load characteristics and power source conditions. The microcontroller automatically adjusts the operating mode of each output channel, enabling adaptive power management that optimizes both energy efficiency and load protection.
2Reliability
If the UPS system prioritizes electrical safety by frequently switching to inverter mode, then load power protection is improved, but power loss increases
Solution Approach 1:
By segmenting the power output into multiple independent channels, the system can apply different power supply strategies to different loads. Critical loads receive protected inverter power while non-critical loads can use energy-efficient bypass power, resolving the contradiction between protection and energy loss.
Solution Approach 2:
Different output channels are assigned different quality levels of power supply based on load requirements. The first output provides high-quality inverter power for protection-sensitive loads, while the second output provides standard bypass power for less sensitive loads, optimizing the balance between protection and energy efficiency locally for each load.
3Device complexity
If commercial UPS systems provide uniform power output to all loads, then system simplicity is maintained, but power management functionality is limited
Solution Approach 1:
The patent introduces a multi-output selector with multiple independent output channels, each capable of being independently configured and controlled. This segmentation allows the system to provide customized power management for different loads while maintaining a relatively simple overall architecture based on the existing UPS structure.
Solution Approach 2:
The multi-output selector serves multiple functions: it can distribute power from a single input to multiple outputs, independently control the operating mode of each output, and adapt to different load characteristics. This multi-functionality enhances power management versatility without requiring completely separate systems for each load.
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
Enhances power efficiency and achieves energy saving effects by allowing the UPS system to adapt power output modes to different load characteristics and conditions, improving both energy saving and electrical safety simultaneously.
Implementation Method 1
enabling the inverter to convert the DC power into stabilized AC power for the load
Implementation Method 2
a charger or the inverter can used for converting the inputted AC mains or AC power supply into DC power supply for charging the battery
Implementation Method 3
the rectifying circuit, power correction circuit or filter circuit of the normal mode main loop will conduct a rectification process to provide stable and clean power supply to the loads
Data Source
AI summary
A multi-output power management method used in a UPS system for enabling a microcontroller to determine whether to execute an automatic setting or manual setting. In automatic setting, the microcontroller conducts the parameter setting of a multi-output selector output mode, and switches a multi-output selector to a bypass or DC to AC inverter output mode after confirming that the power status parameter is in a predetermined multi-output selector parameter setting range. In manual setting, the multi-output selector can be manually switched to the bypass or DC to AC inverter output mode. Thus, multiple switching units of the multi-output selector of the UPS system can be respectively selectively switched to the bypass or DC to AC inverter output mode to provide different AC outputs to a respective load under the priority of energy saving or electrical safety, enhancing the electrical efficiency of UPS system and achieving the effect of energy saving.