Battery Pulse Discharging for Data Center Power Reliability
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Solution Overview
Problem
Conventional power supply systems for data centers face short power supply times and poor reliability due to the limited lifespan of batteries when discharging at high rates, leading to insufficient backup power during grid outages.
Innovation Solution
A power supply system that includes a control unit managing load priorities and utilizing a battery pack with a rectification module and DC/DC module for high-frequency negative pulse discharging, extending battery life and optimizing power distribution between an oil engine and battery packs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the battery discharges at high rate current for more than dozens of times, then the power supply capacity is sufficient, but the life of the battery is short and power supply time is limited
Solution Approach 1:
The patent applies periodic action by implementing high-frequency negative pulse discharging (reversal charging) at specific intervals during battery operation. The control unit monitors discharge cycles and applies reverse pulses periodically to prevent vulcanization, thereby extending battery life while maintaining power supply capacity during grid outages.
Solution Approach 2:
The patent changes the electrical parameters by applying high-frequency negative pulse current to the battery. This parameter change transforms the battery's chemical state temporarily, preventing the accumulation of sulfates that cause vulcanization, thus extending battery lifespan without compromising its power supply capability.
2Reliability
If the oil engine and battery are used to supply power to the load, then backup power is provided, but the power supply time is short due to battery limitations
Solution Approach 1:
The patent ensures continuity of useful action by maintaining the battery in a healthy state through periodic negative pulse discharging. This prevents battery failure and ensures continuous power supply capability throughout the duration of the grid outage, working in conjunction with the oil engine to extend overall power supply time.
Solution Approach 2:
The patent applies preliminary action by performing maintenance discharging (negative pulse) on the battery before it reaches a critically degraded state. The control unit monitors battery usage and applies reverse charging proactively to prevent vulcanization, ensuring the battery remains reliable for the full duration of backup power needs.
3Productivity
If high rate current discharging is used to meet power demand, then immediate power supply is sufficient, but battery vulcanization occurs and life is shortened
Solution Approach 1:
The patent converts the harmful effect of high-rate discharging (which causes vulcanization) into a beneficial process by applying controlled negative pulse discharging. This reverse current dissolves the sulfates that would otherwise accumulate and damage the battery, transforming a potentially harmful operation into a protective maintenance mechanism.
Solution Approach 2:
The control unit implements feedback by monitoring the battery's discharge history and state of charge, then automatically applying negative pulse discharging when appropriate. This closed-loop control ensures high-rate power delivery when needed while preventing cumulative damage through timely maintenance pulses.
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 system extends power supply time, improves reliability by intelligently managing load priorities and battery health, ensuring continuous power delivery during grid outages with reduced battery degradation.
Implementation Method 1
the rectification module is configured to convert the received alternating current signal into a direct current signal and output the direct current signal to the DC/DC module
Implementation Method 2
the DC/DC module is configured to perform high frequency isolation on the direct current signal inputted by the rectification module, and adjust an output voltage value so as to output to the battery pack unit and the current loads
Implementation Method 3
the battery pack unit is configured to supply power to the current loads under control of the power supply unit
Data Source
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Figure 5
AI summary
A power supply system and method. The power supply system comprises: a power grid input unit (101) and a diesel generator input unit (102), separately used for supplying an alternating current to a power supply unit (104); an automatic transfer switch unit (103), connected to the power grid input unit and the power supply unit or connected to the diesel generator input unit and the power supply unit; the power supply unit, used for converting the received alternating current into a direct current; and a control unit (105), used for monitoring a current load current and current diesel generator power, and determining to turn off a preset number of power supply loads according to a magnitude relationship between the current diesel generator power and the current load power and according to priority levels of current loads. By means of the power supply system and method, the power supply time is prolonged and the power supply reliability is improved.