UPS Battery Charging Control for Energy Savings
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Solution Overview
Problem
Uninterruptable power supply systems face challenges in energy saving and battery life due to excessive charging and power consumption, which affects the maintenance of full battery power capacity and reduces battery longevity.
Innovation Solution
An uninterruptable power supply system incorporating a battery, a converting module, a charging circuit, a power detecting circuit, and a controlling module, where the converting module includes a transformer and a full-bridge switching circuit, and the controlling module manages the charging and discharging processes based on battery power values and supply states to optimize energy usage and extend battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery is continuously charged to maintain full power capacity, then the power supply stability is improved, but the power consumption increases and battery life decreases
Solution Approach 1:
The patent implements dynamic control of the charging process by adjusting charging current based on real-time battery state monitoring. The system transitions from static continuous charging to dynamic adaptive charging, where charging parameters are continuously adjusted according to battery capacity, temperature, and charge state, thereby reducing unnecessary power consumption while maintaining power supply stability.
Solution Approach 2:
The patent employs feedback control mechanisms where the charging circuit continuously monitors battery parameters (voltage, current, temperature) and adjusts charging operations accordingly. This closed-loop feedback system prevents overcharging and unnecessary charging when battery capacity is sufficient, reducing power consumption while ensuring power supply reliability.
2Reliability
If the battery is continuously charged to maintain full power capacity, then the power supply stability is improved, but the battery life decreases
Solution Approach 1:
The patent applies partial charging strategy where the battery is charged only to the extent necessary to maintain power supply stability, rather than continuously maintaining 100% capacity. The system determines optimal charging thresholds and charges partially when needed, avoiding excessive charging that accelerates battery degradation while still ensuring sufficient power supply reliability.
Solution Approach 2:
The patent changes charging parameters (current, voltage, temperature thresholds) based on battery state and environmental conditions. By dynamically adjusting these parameters, the system optimizes the balance between maintaining power supply stability and minimizing battery stress, thereby extending battery life while preserving reliability.
3Quantity of substance
If excessive charging times are applied, then the battery power capacity is maintained, but the battery life is affected negatively
Solution Approach 1:
The patent implements preliminary monitoring and prediction of battery charge state, allowing the system to initiate charging only when necessary to maintain required capacity levels. By predicting when charging will be needed based on load patterns and battery discharge rates, the system avoids unnecessary charging cycles that would reduce battery life while ensuring capacity maintenance.
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 effectively reduces power consumption and prolongs battery life by controlling charging and discharging modes, ensuring energy savings and maintaining battery capacity while providing uninterrupted power.
Implementation Method 1
the AC power can be converted into a DC current for charging the battery... the DC power stored in the battery can be converted into an AC power
Implementation Method 2
the transformer and a full-bridge switching circuit, the transformer has at least two windings
Data Source
AI summary
An uninterruptable power supply system including a battery, a converting module, a charging circuit, a first switch, a power detecting circuit and a controlling module is provided. The converting module is coupled between a power inputting terminal and the battery, and connects to a load. The power inputting terminal is connected to a power. The battery is charged through the converting module or discharges to the load through the converting module. The charging circuit is coupled between the power inputting terminal and the battery for charging to the battery. The first switch is coupled between the charging circuit and the battery. The power detecting circuit is coupled to the battery for detecting a power value of the battery. The controlling module is coupled to the power detecting circuit, and control the ON/OFF state of the first switch for making the battery be charged or discharge according the power value or power supply state of the power.