Parallel Backup Power Modules for Load Scaling
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Solution Overview
Problem
Existing UPS systems are limited in providing adequate power to loads that exceed the threshold power level of a single backup power module, often resulting in idle modules and inadequate power during backup operations.
Innovation Solution
A system of multiple backup power modules connected in parallel, with a controller that activates switches to combine resources and ensure adequate power delivery to loads exceeding the threshold, using a combination of hardware and programming to monitor and manage output power levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a single backup power module is used, then the device complexity is reduced, but the power delivery capability becomes insufficient when loads exceed the threshold power level
Solution Approach 1:
The backup power system is divided into multiple independent backup power modules, each capable of operating independently or in combination. This segmentation allows the system to scale power delivery capability by activating additional modules when loads exceed the threshold, while maintaining manageable complexity through modular design with standardized interfaces and control logic.
2Adaptability or versatility
If multiple backup power modules are used, then the adaptability to varying power requirements is improved, but the device complexity increases
Solution Approach 1:
The system dynamically adjusts the number of active backup power modules based on the load power requirements. The controller monitors the threshold power level and activates or deactivates modules accordingly, enabling the system to adapt to varying power demands while managing complexity through automated control rather than fixed configuration.
Solution Approach 2:
Multiple backup power modules are designed with standardized interfaces and identical functionality, allowing them to be universally interchangeable. This multi-functionality enables any module to serve any load requirement, simplifying the system architecture while providing adaptability through flexible module activation rather than requiring specialized configurations.
3Power
If backup power modules operate independently, then the device complexity is reduced, but the power delivery to loads exceeding threshold becomes inadequate
Solution Approach 1:
The system merges the output of multiple backup power modules through a common output interface controlled by switching elements. When a load exceeds the threshold power level, the controller activates multiple modules and combines their power delivery capability, achieving enhanced power output while managing complexity through centralized control logic that coordinates the merging process.
4Reliability
If a single backup power module is used, then the device complexity is reduced, but the reliability becomes insufficient when the load exceeds the module capacity
Solution Approach 1:
The backup power system is segmented into multiple independent modules, each capable of providing full backup power capability. This segmentation improves reliability by providing redundancy - if one module fails or is insufficient, other modules can be activated to meet the load requirements, while the modular design keeps system complexity manageable through standardized components.
Solution Approach 2:
The system changes the operational parameters by activating or deactivating specific backup power modules based on load conditions. When reliability requirements increase due to exceeded capacity, the controller changes the system state from single-module operation to multi-module operation, enhancing reliability while managing complexity through automated parameter adjustment.
Data Source
AI summary
In one example, a system for parallel output of backup power modules includes a first backup power module coupled to an input and a first output of an enclosure, a second backup power module coupled to the input and a second output of the enclosure, wherein the second backup power module is coupled in parallel with the first backup power module, and a switch coupling the first backup power module and the first output of the enclosure to the second output of the enclosure.