Power Supply Activation by Cable Length
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Solution Overview
Problem
Modern datacenters face significant power consumption expenses due to high-power equipment, and existing power management solutions are inadequate in optimizing power utilization and reducing consumption effectively.
Innovation Solution
A method is introduced to identify and prioritize power supplies based on the length of their cables connected to a power distribution unit, placing those with shorter cables in active mode to efficiently supply power to the system, thereby reducing power consumption and ensuring redundancy without causing interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant power supplies are maintained in standby mode to ensure system reliability, then system uptime is improved, but power consumption increases
Solution Approach 1:
The system dynamically transitions power supplies between standby and active modes based on real-time cable length measurements. Shorter cable power supplies are automatically promoted to active mode while longer cable power supplies remain in standby, creating a dynamic power distribution strategy that adapts to physical constraints without requiring continuous monitoring of all power supply states
Solution Approach 2:
The invention changes the operational parameter of power supplies from a static standby/active configuration to a dynamic state based on cable length. By measuring cable length as a key parameter and using it to determine power supply activation, the system optimizes power consumption while maintaining reliability through physics-based constraints rather than arbitrary configuration
2Area of stationary object
If power supplies with longer cables are used to distribute power, then system coverage area is improved, but voltage drop increases
Solution Approach 1:
The system segments the power distribution network by cable length, identifying and activating only those power supplies whose cables are short enough to maintain acceptable voltage drops. This segmentation approach allows the system to cover multiple locations while avoiding the voltage drop problems of very long cable runs by selectively activating appropriate power supplies
Solution Approach 2:
Cable length measurement serves as an intermediary factor that mediates between the power supply and load. Instead of directly controlling power distribution based on arbitrary criteria, the system uses cable length as an intermediary parameter to automatically determine which power supplies can safely serve which loads, optimizing both coverage and voltage quality
Data Source
AI summary
A method includes identifying a plurality of power supplies connected for supplying power to a computer system, wherein the plurality of power supplies includes at least one redundant power supply in a standby mode. For each of the plurality of power supplies identified, the method determines a length of a power supply cable connected between the power supply and a power distribution unit for supplying power to the power supply. The method further includes placing one or more of the plurality of power supplies in an active mode in ascending order of the length of the cable connected to the power supply, and supplying power to the computer system using the one or more of the plurality of power supplies in the active mode.