UPS Battery Self-Discharge Control for Energy-Saving Replacement Timing

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Solution Overview

Problem

Long-term battery discharge in UPS systems leads to wasted power, as existing energy-saving methods do not effectively manage self-discharge conditions and timing for battery replacement.

Innovation Solution

An energy-saving operation and control method for UPS that includes detecting self-discharge conditions, determining replacement timing based on discharging amounts, and generating signals for power charging and discharging cycles to optimize battery usage and prevent power wastage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If the battery operates in un-operating state for long time, then power is wasted due to self-discharge, but frequent charging and discharging reduces battery life

Engineering Contradiction:
Improvepower wasteVSAvoidbattery life
Core Design Contradiction:
Loss of energyVSDuration of action of stationary object

Solution Approach 1:

The system performs preliminary detection of self-discharge conditions and predicts battery replacement timing before actual battery failure or excessive power waste occurs. By calculating the automatic discharging amount per unit time in advance and comparing it with threshold values, the system proactively schedules battery replacement at optimal moments, preventing both power waste from prolonged discharge and degradation from excessive cycling.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors battery parameters including self-discharge rate, temperature, and voltage. This feedback information is used to dynamically adjust the replacement timing determination. The system compares real-time detection results with preset thresholds and automatically generates replacement signals, creating a closed-loop control system that optimizes battery management based on actual operating conditions.

Inventive Principle:
Principle #23Feedback

2Loss of energy

If battery replacement timing is delayed, then power waste increases, but early replacement increases maintenance cost

Engineering Contradiction:
Improvepower wasteVSAvoidreplacement timing accuracy
Core Design Contradiction:
Loss of energyVSLoss of time

Solution Approach 1:

The system calculates the automatic discharging amount per unit time in advance and uses this preliminary data to predict when the battery will reach critical discharge levels. By performing this calculation before actual replacement is needed, the system can schedule replacement at the optimal moment, avoiding both premature replacement and delayed replacement that would cause power waste.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system replaces manual battery monitoring and replacement scheduling with an automated detection and control system. The automatic detection apparatus continuously monitors battery parameters and the control system automatically generates replacement signals, eliminating the need for manual intervention and improving both timing accuracy and response speed.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If manual battery monitoring is used, then operation simplicity is maintained, but detection precision and automation level are low

Engineering Contradiction:
Improveoperation simplicityVSAvoidautomation level
Core Design Contradiction:
Ease of operationVSExtent of automation

Solution Approach 1:

The battery management system performs self-monitoring and self-diagnosis by automatically detecting battery parameters such as voltage, temperature, and discharge rate. The system independently determines replacement timing based on preset criteria and automatically generates replacement signals without requiring manual intervention, enabling the system to serve itself in terms of battery health management.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system replaces manual battery monitoring operations with an automated detection and control system. The automatic detection apparatus continuously monitors battery parameters and the control system automatically processes this information to generate replacement signals, eliminating the need for manual checking and scheduling while improving detection precision and response accuracy.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12149117B1Energy-saving operation and control method for UPS
Publication Date: 2024.11.19 FANSHI TECHNOLOGY DEVELOPMENT CO LTD
  • US12149117B1 patent drawing

AI summary

An energy-saving operation and control method for a UPS. The method includes performing a concomitant detection on a self-discharge condition of the UPS without any further processing before the concomitant detection, to obtain an automatic discharging amount per unit of time when the battery is in an un-operating state; determining a replacement timing among three kinds according to a value of the discharging amount; and generating a replacement signal at a corresponding time point according to the replacement timing; according to the generated replacement signal, performing a process of power charging and power discharging on the battery.