Rack Cooling Power Control with Redundant Dual Modules
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Solution Overview
Problem
Conventional racks with heat-dissipation systems face reliability issues due to single-point failures in the power control system, leading to potential shutdowns and increased maintenance difficulties, especially with shared power consumption and lack of current sharing in the power supply units.
Innovation Solution
A redundant power control system with dual control modules and voltage converting units that can switch between multiple power sources, allowing for continued operation even if one source fails, and enabling hot-swapping for easy maintenance, thereby improving reliability and reducing downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single power control system is used in the rack, then the device complexity is reduced, but the reliability deteriorates due to single-point failures causing potential shutdowns
Solution Approach 1:
The power control system is segmented into multiple independent control modules (first control module and second control module), each capable of independently controlling the heat-dissipation system. This segmentation eliminates single-point failures and improves reliability while maintaining manageable complexity through modular design.
Solution Approach 2:
The system changes the operational parameter from single-power-source to multi-power-source configuration. The switch unit enables dynamic switching between rack power supply and module power supply, transforming the power control architecture from centralized to distributed, thereby improving reliability without significantly increasing complexity.
2Device complexity
If power sources are shared among multiple components, then the device complexity is reduced, but the ease of repair deteriorates due to inability to isolate and replace faulty components
Solution Approach 1:
The power supply system is segmented into independent module power supplies (first power supply and second power supply) that can be independently maintained. The switch unit enables isolation of faulty modules, allowing repair personnel to replace only the defective power supply module without shutting down the entire rack, thus improving ease of repair.
Solution Approach 2:
The power supply configuration becomes dynamic through the switch unit, which can reconfigure power paths in real-time. When a power supply module fails, the system dynamically switches to an alternative power source, enabling hot-swapping and continuous operation during maintenance, thereby improving ease of repair.
3Device complexity
If a single voltage converting unit is used, then the device complexity is reduced, but the reliability deteriorates due to inability to continue operation when the unit fails
Solution Approach 1:
The voltage converting unit is segmented into multiple redundant units (first voltage converting unit and second voltage converting unit). Each unit can independently perform voltage conversion for the heat-dissipation system. If one unit fails, the other continues operation, ensuring continuous heat dissipation and preventing rack shutdown, thereby improving reliability.
Solution Approach 2:
The system incorporates redundant voltage converting units as a preventive measure against future failures. This beforehand cushioning ensures that if one voltage converting unit fails, the system has already prepared an alternative unit to take over, maintaining continuous operation without interruption.
4Device complexity
If the power control system lacks current sharing capability, then the device complexity is reduced, but the productivity deteriorates due to potential shutdowns affecting business operations
Solution Approach 1:
The power control system is segmented into multiple independent control modules with individual power supply paths. This segmentation enables current sharing capability where multiple power sources can simultaneously supply power to different components. The switch unit intelligently distributes current between rack power supply and module power supply, preventing single-point failures and ensuring continuous business operations, thereby improving productivity.
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
The solution enhances the reliability of the heat-dissipation system by ensuring continuous operation even if one power source fails, reducing business losses and simplifying maintenance by allowing for easy replacement of faulty components without shutting down the entire rack.
Implementation Method 1
a water circulation system 20 installed in the rack body 1, a fan module 21 installed in the rack body 1 for performing heat exchange with the water circulation system 20
Implementation Method 2
a motor module 22 installed in the rack body 1 for driving the water circulation system 20
Data Source
AI summary
A power control system of a rack heat-dissipation system, which receives output voltages of a rack power supply and a module power supply, includes a first control module and a second control module operating in parallel. The first control module includes a first switching unit, a first voltage converting unit and a first monitoring unit. The second control module includes a second switching unit, a second voltage converting unit and a second monitoring unit. The first monitoring unit is connected to the rack power supply, the module power supply, the first switching unit and the first voltage converting unit, and the second monitoring unit is connected to the rack power supply, the module power supply, the second switching unit and the second voltage converting unit. The heat dissipation system can be kept in the normal operation even if one of the control modules is failed.