Server Power Supply Architecture With High-Voltage Battery Control
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Solution Overview
Problem
Traditional data center power supply systems suffer from low power efficiency, large heat loss, and low power reliability due to multiple energy conversions and heat accumulation in UPS systems, leading to increased failure rates.
Innovation Solution
A power supply system for servers that includes a high-voltage battery power master control unit, battery string control units, and power conversion string control units, which facilitate real-time power information collection and analysis, allowing for intelligent power control and management, reducing the need for direct current to alternating current conversions and simplifying the power path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional UPS power supply system with multiple AC/DC and DC/AC conversions is used, then uninterrupted power supply is achieved, but power efficiency is low and heat loss is large
Solution Approach 1:
The patent extracts and eliminates the AC/DC conversion stage from the traditional UPS power supply path. By using a high-voltage battery power supply system that directly outputs DC power to the server, the system removes unnecessary conversion links, reducing energy loss while maintaining uninterrupted power supply capability.
Solution Approach 2:
The patent changes the operating voltage parameter by using high-voltage batteries (e.g., 48V or higher) instead of traditional low-voltage systems. This parameter change reduces current for the same power level, thereby reducing I²R losses and improving overall power efficiency while maintaining reliability.
2Reliability
If traditional UPS power supply system with multiple conversions is used, then uninterrupted power supply is achieved, but heat accumulation increases and power failure rate increases
Solution Approach 1:
The patent removes the AC/DC conversion stage that generates significant heat. By directly connecting high-voltage batteries to the server power supply through a simplified DC path, the system eliminates major heat-generating components, reducing heat accumulation and associated failure risks.
3Loss of energy
If high-voltage battery power supply system is used, then power efficiency is improved and heat loss is reduced, but system complexity increases
Solution Approach 1:
The high-voltage battery power supply unit performs multiple functions: it serves as both the power source and the uninterrupted power supply mechanism, eliminating the need for separate AC/DC converters and UPS inverter systems. This multi-functionality reduces overall system complexity despite the high-voltage architecture.
Solution Approach 2:
The high-voltage battery system inherently provides uninterrupted power supply capability without requiring complex conversion circuits. The batteries directly supply DC power to the server, making the system self-sufficient and simpler in architecture compared to traditional UPS systems.
4Reliability
If high-voltage battery power supply system is used, then power reliability is improved, but device complexity increases
Solution Approach 1:
The patent extracts the essential function of uninterrupted power supply from the complex AC/DC-DC/AC conversion chain and implements it through a simple high-voltage battery direct-connect architecture. This extraction maintains reliability while dramatically simplifying the system.
Data Source
AI summary
A power supply system and method of a server, an electronic device, and a storage medium are provided. By means of cooperative work of main circuit structures such as a high-voltage battery power master control unit, battery string management and control units, and power conversion string management and control units, power information of each subsystem in the power supply system is collected and analyzed in real time, and the high-voltage battery power master control unit can also issue a corresponding control instruction to each subsystem according to the analysis result so as to realize power control of each subsystem, thereby controlling the total output power of the server.