Storage Array Power Supply Control for Voltage Stabilization

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Solution Overview

Problem

Storage arrays face power failures due to unstable power grid conditions, leading to potential data loss as standby batteries are switched on after the array has powered down, increasing the risk of data loss and system downtime.

Innovation Solution

A method and device that acquire state data from power modules to determine power failure triggering conditions, switching to alternative power modules or standby batteries before a failure occurs, ensuring continuous power supply by controlling the power modules and using PID control to stabilize bus output voltages, and incorporating protection circuits to prevent damage from static electricity and software delays.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If standby battery is switched on after power failure occurs, then power supply is restored, but data loss risk increases and system downtime increases

Engineering Contradiction:

Improvepower supply reliabilityVSAvoidsystem downtime

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary detection of power module states and proactively switches to standby battery before actual power failure occurs. The control circuit continuously monitors power module output and preemptively activates the standby battery when anomalies are detected, preventing data loss and minimizing system downtime.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The control circuit establishes a feedback mechanism that continuously monitors power module states and automatically triggers standby battery activation when abnormal conditions are detected. This closed-loop control ensures timely response to power failures and maintains continuous data protection.

Inventive Principle:

Principle #23Feedback

2Reliability

If multiple power modules are used for redundancy, then power supply reliability improves, but device complexity increases

Engineering Contradiction:

Improvepower supply reliabilityVSAvoidpower supply system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The power supply system is segmented into multiple independent power modules, each capable of operating independently. This modular architecture provides redundancy while maintaining manageable complexity through standardized interfaces and control protocols.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system automatically discards faulty power modules and redirects load to healthy modules or standby battery. This failover mechanism simplifies system management by automatically isolating defective components without requiring manual intervention.

Inventive Principle:

Principle #34Discarding and recovering

Data Source

PatentUS20250004524A1Power supply method and device for storage array, and server

Publication Date: 2025.01.02 INSPUR SUZHOU INTELLIGENT TECH CO LTD

AI summary

Provided are a power supply method and device for a storage array, and a server. The method includes: acquiring state data for representing power supply state of power modules first; determining, according to the state data, whether the storage array reaches a power failure triggering condition; and when the storage array reaches the power failure triggering condition, controlling the current power module to be switched to other power modules or standby batteries.