Distributed Power Supply System with Dynamic Load Balancing
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Solution Overview
Problem
Conventional centralized uninterruptible power supply (UPS) systems occupy significant space and are a single point of failure, making them unsuitable for data centers and server farms, where reliable and distributed power supply is essential.
Innovation Solution
A distributed power supply system comprising multiple power storage units and DC power supply units, each connected via a DC bus, with a power supply controller that manages power distribution by determining SOC and load levels to provide supplemental power from units with sufficient charge to those with insufficient charge, optimizing power sharing across the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a centralized UPS system is used to provide sufficient power storage, then power supply reliability is improved, but the occupied physical space increases significantly
Solution Approach 1:
The patent divides the centralized power storage system into multiple distributed power storage units, each associated with individual electrical devices or groups. This segmentation allows power storage capacity to be distributed across multiple locations rather than concentrated in one large centralized unit, thereby reducing the physical space required at any single location while maintaining overall power supply reliability through redundancy and distribution.
2Reliability
If a centralized UPS system is used to provide sufficient power storage, then power supply reliability is improved, but the system becomes a single point of failure
Solution Approach 1:
By segmenting the power storage system into multiple independent distributed units, the patent eliminates the single point of failure inherent in centralized systems. Each distributed power storage unit operates independently, so if one unit fails, others continue to provide power support. This segmentation transforms the system from vulnerable centralized architecture to resilient distributed architecture with inherent redundancy.
Solution Approach 2:
The patent changes the architectural parameter from centralized to distributed configuration. This fundamental parameter change transforms the system's failure mode characteristics, distributing risk across multiple independent units rather than concentrating it in a single centralized system, thereby improving overall system reliability and adaptability.
3Area of stationary object
If power storage units are distributed across multiple locations, then space requirements are reduced and redundancy is improved, but power management complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where each distributed power storage unit monitors its own charge status (SOC) and power conditions, and communicates with a central controller. The controller receives status information from all units and dynamically adjusts power distribution and charging strategies. This feedback loop automates the management of distributed units, reducing the perceived complexity for operators while maintaining optimal system performance through real-time monitoring and control.
Solution Approach 2:
Each distributed power storage unit is equipped with autonomous capabilities to monitor its own charge status, manage its power output, and participate in system-wide power sharing decisions. The units can independently determine when to discharge, when to charge, and how much power to provide based on local conditions and system needs, reducing the management burden while maintaining coordinated operation across the distributed network.
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 solution enables efficient and reliable power distribution without a single point of failure, optimizing power usage and reducing space requirements by allowing power sharing among units, ensuring continuous operation during interruptions.
Implementation Method 1
Each power storage unit includes a battery unit
Implementation Method 2
the particular DC power supply unit converts mains power to DC power
Data Source
AI summary
A distributed power supply system and a method for managing such a distributed power supply system is disclosure. The method may include: for each power storage unit i of the plurality of power storage units, determining whether power storage unit i have sufficient status of charge (SOC) based on SOC of the power storage unit i (Ci), and load of the power storage unit i (Li); identifying a set of power storage units that have insufficient SOC; and adjusting output power of the power storage units that have sufficient SOC to provide supplemental power to the set of power storage units that have insufficient SOC.