Redundant PSU Load Spreading for Higher Power Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing redundant power supply systems in computer systems face inefficiency due to lower efficiency power supplies operating under light loads, leading to increased power consumption and waste, while deactivating these supplies for efficiency compromises system redundancy and reliability.
Innovation Solution
A method of dynamically adjusting power load distribution across multiple power supply units based on their efficiency profiles, allocating more load to higher efficiency units and less load to lower efficiency units, using a load balancing algorithm to optimize overall system efficiency and maintain redundancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If lower efficiency power supplies are deactivated to improve overall efficiency, then power efficiency is improved, but system redundancy and reliability are compromised
Solution Approach 1:
The system dynamically adjusts power load distribution across multiple power supply units based on real-time efficiency profiles and power demand. The controller continuously monitors efficiency data and redistributes loads to optimize overall system efficiency while maintaining redundancy, rather than statically deactivating specific PSUs. This dynamic load spreading allows the system to achieve high efficiency without compromising reliability.
Solution Approach 2:
The system changes the operational parameters (load distribution) of power supply units based on their efficiency profiles. By adjusting the load allocation parameter dynamically according to each PSU's efficiency characteristics and current power demand, the system optimizes overall efficiency while ensuring that redundant PSUs remain operational and ready for failure recovery.
2Reliability
If redundant power supplies operate under light loads to maintain redundancy, then system reliability is maintained, but power efficiency deteriorates
Solution Approach 1:
The system dynamically redistributes power loads among redundant supply units based on real-time efficiency profiles and power demand. Rather than statically allocating fixed redundant capacity, the system continuously optimizes load distribution to match actual demands, allowing redundant PSUs to operate at higher efficiency points while maintaining readiness for failure scenarios.
Solution Approach 2:
The system uses efficiency profile data as feedback to continuously adjust power load distribution. By monitoring actual efficiency performance and comparing it against target profiles, the controller optimizes load allocation to maximize overall system efficiency while ensuring redundancy requirements are met, creating a closed-loop optimization system.
Data Source
AI summary
Method and apparatus for system power supply. A power demand of a system having a first power supply unit (PSU) and a second power supply unit (PSU) is monitored. An efficiency profile of the first PSU is accessed. An efficiency profile of the second PSU is accessed. A load split between the first and second PSUs is generated based on the efficiency profiles of the first and second PSUs and the power demand to increase a power efficiency of the system.