Power Storage System Optimizes Capacity Learning Timing
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Solution Overview
Problem
Existing power storage battery management systems face challenges in accurately determining residual battery capacity, leading to inefficient power consumption leveling and increased carbon dioxide emissions due to wasteful full discharges and scheduling difficulties.
Innovation Solution
A power supplying system that includes a power storage portion and an amount measurement portion, which performs full charge and full discharge cycles based on facility operation schedules to optimize timing for amount learning, prioritizing non-operation times for full discharges and using load demand predictions to manage charging and discharging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If full discharge is performed immediately to quickly complete amount learning, then the speed of amount learning is improved, but power consumption becomes wasteful and carbon dioxide emission increases
Solution Approach 1:
The system performs preliminary assessment of facility operation schedules and load demand predictions before executing full discharge. By planning the amount learning timing in advance based on predicted low-demand periods, the system avoids wasteful discharges during high-demand periods, thus reducing energy loss and carbon dioxide emission while still achieving timely amount learning.
2Adaptability or versatility
If full discharge is performed at any timing to quickly complete amount learning, then the flexibility of amount learning is improved, but the reliability of power supply scheduling deteriorates
Solution Approach 1:
The system incorporates feedback mechanisms by continuously monitoring facility operation schedules and load demand predictions. This feedback loop enables the system to dynamically adjust the timing of full discharge operations, ensuring that amount learning is performed only when it will not conflict with power supply scheduling requirements, thus maintaining both flexibility and reliability.
3Measurement precision
If exact residual amount measurement is performed to achieve effective power consumption leveling, then the precision of power management is improved, but the complexity of measurement and control increases
Solution Approach 1:
The system performs self-service by conducting full charge and full discharge cycles to automatically recalibrate the residual amount measurement. This self-calibration mechanism allows the system to maintain high measurement precision without requiring complex external measurement equipment, as the power storage battery itself serves as the measurement tool through its controlled charge-discharge operations.
Data Source
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AI summary
[Objective] To provide a power supplying system wherein the timing at which a storage unit conducts capacity learning is made to be more suitable. [Solution] A power supplying system supplies power to loads provided within a facility, and is provided with: a power storage unit that stores power by being charged, and supplies power by being discharged; and a capacity measurement unit that measures the remaining capacity of the power storage unit by executing a complete charging and a complete discharging of the power storage unit, in sequence. The capacity measurement unit obtains the operation schedule of the facility, and determines the timing at which the complete charging and the complete discharging of the power storage unit are to be conducted, on the basis of the operation schedule.