HVDC Power Supply Management for Data Center Reliability
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Solution Overview
Problem
Traditional AC UPS systems in data centers require two conversion processes and lack flexibility in power distribution, leading to inefficiencies and reliability issues during faults, causing potential service outages.
Innovation Solution
A Network Distributed High Voltage Direct Current (HVDC) Power Supply Management Method using multiple HVDC power supply devices with pre-set modes (A, B, C, D) and detection nodes for dynamic mode switching, enabling flexible power distribution and improved reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional AC UPS centralized power supply method is used, then power supply is provided to IT equipment, but two conversion processes (AC to DC to AC) are required causing energy waste
Solution Approach 1:
The patent segments the centralized power supply system into multiple distributed HVDC power supply devices, each capable of independent operation. This eliminates the need for double conversion in traditional AC UPS systems by directly providing DC power to equipment, thereby reducing energy loss and simplifying the conversion process.
Solution Approach 2:
The patent replaces the mechanical/electrical conversion system (AC to DC to AC) with a direct HVDC power supply system. By substituting the traditional two-stage conversion mechanism with a direct DC power delivery system, the patent eliminates redundant conversion processes and associated energy losses.
2Adaptability or versatility
If traditional UPS power management method with single measure is used, then power supply is provided, but flexible and dynamic power distribution according to different equipment electricity consumption status is not achieved
Solution Approach 1:
The patent implements dynamic power management where each distributed HVDC power supply device can independently adjust its operation based on real-time equipment electricity consumption status. The system transitions from static single-mode power management to dynamic multi-mode operation, enabling flexible power distribution that adapts to changing load conditions and minimizes energy waste.
Solution Approach 2:
The patent incorporates feedback mechanisms where detection nodes monitor the electricity consumption status of connected equipment and provide information to the power supply devices. This feedback enables the system to dynamically adjust power distribution strategies, optimizing energy utilization based on actual equipment needs.
3Reliability
If traditional UPS system is used, then power supply is provided to entire data center, but safety and reliability are poor when fault occurs causing service outage
Solution Approach 1:
The patent divides the centralized power supply system into multiple independent distributed HVDC power supply devices. Each device operates autonomously and can be isolated without affecting the entire data center. This segmentation eliminates the single point of failure problem in traditional UPS systems, significantly improving reliability while maintaining manageable system complexity through modular architecture.
Solution Approach 2:
The patent changes the fundamental operating parameters of the power supply system by transitioning from AC-based centralized UPS to DC-based distributed power supply. This parameter change enables direct DC power delivery to equipment, eliminating conversion losses and improving efficiency. The system maintains reliability through multiple operational modes (A, B, C, D) that can be dynamically selected based on system conditions.
4Adaptability or versatility
If multiple HVDC power supply devices are deployed with dynamic mode switching, then power distribution flexibility is improved, but system complexity increases
Solution Approach 1:
The patent designs each distributed HVDC power supply device with multi-functionality, capable of operating in four different modes (A, B, C, D) and performing multiple functions including rectification, battery charging, power supply, and grid interaction. This universality reduces the need for separate specialized components, managing system complexity while achieving high adaptability and flexible power distribution.
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
This method reduces power supply risks, enhances reliability, and optimizes energy utilization by allowing flexible power distribution among devices, reducing energy waste and improving system efficiency.
Implementation Method 1
mode A, the rectifier module in the High Voltage Direct Current power supply device converting AC into DC to supply power to the load connected with the High Voltage Direct Current power supply device
Data Source
Figure 1
Figure 1
AI summary
This invention provides A Network Distributed High Voltage Direct Current Power Supply Management Method, with the steps that, multiple high voltage direct current power supply devices deployed in parallel connected, and ensure that at least one high voltage direct current power supply device not needs to connect with load; there are four power supply modes pre-set in each high voltage direct current power supply device, and the first detection node and the second detection node are set in each device; detect the status of the first detection node and the second detection node, and adopt the predetermined method to change the power supply mode of the high voltage direct current power supply device as per the predetermined condition. By adopting the above-mentioned technology plan, the risk of power supply could be diversified and reduced, and the reliability of power supply could be improved, in the meantime, the power supply could be flexibly distributed among different power supply devices, to improve the efficient of the utilization of energy, and reduce the energy consumption.