Micro Server Power Supply Load-Adaptive Master-Slave Control
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Solution Overview
Problem
Conventional power supply systems for micro servers operate at low efficiency due to redundant power supplies being driven at low loads, leading to significant power loss, especially in data centers where power management is critical.
Innovation Solution
A power supply device that dynamically adjusts the operation of multiple power supplies based on load conditions, designating one as a master and others as slaves, where slaves only output power when the load exceeds predetermined thresholds, ensuring efficient power distribution and reducing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant power supplies are configured to ensure reliability, then system reliability is improved, but power efficiency deteriorates when load is low
Solution Approach 1:
The power supply system dynamically adjusts the operating state of power supply units based on real-time load conditions. When load is low, slave power supplies are switched to a dozing state rather than continuing to operate at low efficiency, thereby reducing energy loss while maintaining the capability to provide full power when needed.
Solution Approach 2:
The system changes the operational parameters of power supply units by introducing a dozing state with a specific efficiency threshold (e.g., 50%). When efficiency falls below this threshold due to low load, the power supply unit transitions to the dozing state, effectively changing its operational mode to optimize energy efficiency.
2Power
If multiple power supplies operate in parallel to share load, then power distribution capacity is improved, but power efficiency deteriorates due to operation in low-load conditions
Solution Approach 1:
The system dynamically controls which power supply units are active based on load requirements. Instead of all power supplies operating continuously in parallel, the system activates only the necessary number of units based on current demand, preventing inefficient low-load operation while maintaining adequate power distribution capacity.
Solution Approach 2:
Each power supply unit monitors its own efficiency and automatically transitions to a dozing state when efficiency falls below the threshold, without requiring external control. This self-service mechanism ensures that power supplies operate efficiently independently while contributing to overall system optimization.
3Use of energy by moving object
If power supplies are designed for highest efficiency at specific load regions, then efficiency in that region is improved, but adaptability to varying load conditions deteriorates
Solution Approach 1:
The system adapts to varying load conditions by dynamically adjusting the number of active power supply units. When load decreases, some units transition to dozing state; when load increases, units can be activated from dozing state. This dynamic adjustment maintains high efficiency across different load regions while preserving adaptability.
Solution Approach 2:
The power supply system is segmented into multiple independent power supply units, each capable of operating independently or in combination with others. This segmentation allows the system to activate only the necessary number of units for current load requirements, maintaining efficiency while adapting to varying conditions.
Data Source
AI summary
A power supply device to supply power to a micro server includes a plurality of power supplies configured to be redundant and supply DC power, and an output unit to output the DC power output from the plurality of power supplies to the micro server, wherein one of the plurality of power supplies operates in a master mode and the remaining power supplies operate in a slave mode, and wherein if a load of the micro server is less than or equal to a first predetermined load, at least one of the power supplies that operate in the slave mode does not output the DC power.