Bidirectional DC Converter Power Supply for Data Center Busbars
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Solution Overview
Problem
Current power supply methods in data centers face low utilization of battery packs due to their ability to supply backup power only to one voltage level, limiting their backup time and efficiency.
Innovation Solution
The implementation of a power supply device with at least two busbars connected to batteries of different voltage levels, using bidirectional direct current converters to enable energy transmission and scheduling between battery packs, allowing power supply to loads of different voltage levels without the need for backup at the input end.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If backup is performed at the power-supply input end using a battery pack, then power supply reliability is improved, but the battery pack can only supply backup power to one voltage level, causing low utilization
Solution Approach 1:
The battery pack is designed to serve multiple voltage levels through the introduction of bidirectional DC converters. The first battery pack can provide backup power to both the first busbar (first voltage level) and the second busbar (second voltage level) via the bidirectional DC converter, making the battery pack universal across different voltage levels and eliminating the limitation of single-voltage-level backup.
Solution Approach 2:
A bidirectional DC converter is introduced as an intermediary device between the first battery pack and the second busbar. This converter enables energy transmission from the first battery pack to the second busbar, allowing the battery pack to support multiple voltage levels without direct connection to each, thus improving utilization while maintaining reliability.
2Reliability
If separate battery packs are used for different voltage levels, then each battery pack is optimized for its specific voltage level, but the overall system complexity increases and battery utilization decreases
Solution Approach 1:
The patent merges the backup function for multiple voltage levels into a single battery pack system. Instead of having separate battery packs for each voltage level, the first battery pack is combined with bidirectional DC converters to serve both the first and second busbars, reducing the number of battery packs needed and simplifying the overall system while maintaining voltage-level specific backup capability.
3Ease of manufacture
If a battery pack is dedicated to a single voltage level, then the battery pack design is simplified, but the backup time and efficiency are limited due to low utilization
Solution Approach 1:
The system introduces dynamic energy scheduling capability through bidirectional DC converters that can dynamically allocate battery power to different busbars based on real-time power supply status and load requirements. This dynamic adjustment allows the battery pack to adapt its output to different voltage levels and loads, extending effective backup time and improving efficiency without complicating the fundamental battery pack design.
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 approach optimizes backup time and improves battery pack utilization by enabling energy scheduling between different battery packs, enhancing the reliability and efficiency of power supply in data centers during faults or exceptions in power supply paths.
Implementation Method 1
the first busbar and the second busbar perform electrical energy transmission using the at least one first bidirectional direct current converter
Data Source
AI summary
A power supply device and a power supply method in a data center, and the power supply device includes at least two busbars, where a first busbar of the two busbars is connected to a first battery, a second busbar of the two busbars is connected to a second battery, and a voltage level of the first battery is different from a voltage level of the second battery, and at least one first bidirectional direct current converter configured to connect the first busbar and the second busbar such that the first busbar and the second busbar perform electrical energy transmission using the first bidirectional direct current converter.