Battery Power Management Scheduling for Energy Availability and Lifespan
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Solution Overview
Problem
Rechargeable batteries in electric power management systems are not fully charged, which limits their performance in responding to power saving demands, leading to inadequate energy supply and potential aging degradation.
Innovation Solution
An electric power management apparatus that includes an analysis unit to assess battery charge residue and generate control schedules for home appliances and rechargeable batteries, optimizing charge and discharge operations to maximize battery utilization and minimize degradation during power saving events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If rechargeable batteries are fully charged to maximize energy availability, then the battery performance in responding to power saving demand is improved, but the battery aging degradation increases
Solution Approach 1:
The system performs preliminary charging of rechargeable batteries before power saving demand occurs, and schedules discharge during the demand period. By preparing the battery charge state in advance and managing the discharge timing, the system maximizes energy availability when needed while avoiding excessive charging cycles that would accelerate aging degradation.
Solution Approach 2:
The system dynamically adjusts battery charging and discharging parameters (charge rate, discharge rate, state of charge limits) based on the specific power saving demand characteristics, battery health status, and degradation models. This optimization of operational parameters enables the system to extract maximum energy while minimizing the impact on battery lifespan.
2Reliability
If rechargeable batteries are not fully charged to prevent aging degradation, then the battery lifespan is extended, but the energy supply capability during power saving demand is insufficient
Solution Approach 1:
The system charges batteries to optimal levels before power saving demand occurs, ensuring sufficient energy supply capability is prepared in advance. By timing the charging action beforehand and managing the state of charge appropriately, the system achieves both adequate energy availability and reduced charging cycle stress on the battery.
Solution Approach 2:
The system employs partial charging strategies where batteries are charged to the precise level needed for the anticipated power saving demand, rather than always charging to full capacity. This partial charging approach reduces unnecessary charging cycles and extends battery lifespan while still providing sufficient energy supply capability for the specific demand scenario.
Data Source
AI summary
According to one embodiment, an electric power management apparatus is for controlling electric power of at least one home appliance using at least one rechargeable battery. The apparatus includes an analysis unit, a first generating unit, and a second generating unit. The analysis unit analyzes a charge residue of the rechargeable battery. The first generating unit generates a control schedule used to control the electric power of the home appliance in accordance with the charge residue. The second generating unit generates a charge/discharge schedule used to control charge and discharge of the rechargeable battery in accordance with the charge residue.