Secondary Battery Charge Control via Threshold Segmentation
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Solution Overview
Problem
Secondary batteries in energy storage systems struggle to maintain a proper charge amount due to varying energy demand in electrical grids, leading to inefficiencies and the inability to respond effectively to peak load demands, especially with existing control methods that result in power loss and reduced capacity over time.
Innovation Solution
An apparatus and method that includes a sensing unit to measure electrical characteristics, a memory unit to store charge and discharge sections, and a control unit to adjust charging and discharging power based on these measurements, ensuring the secondary battery maintains a proper charge amount by reducing or increasing power as needed within defined sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the energy storage system operates without separate charge/discharge control under varying electrical grid conditions, then the system can respond flexibly to energy demand changes, but the secondary battery cannot maintain a proper charge amount and experiences power loss and reduced capacity over time
Solution Approach 1:
The patent segments the charge/discharge control into distinct operational modes by defining specific charge amount thresholds (first threshold and second threshold). When the charge amount exceeds the first threshold, the system enters a discharge-priority mode. When it falls below the second threshold, the system enters a charge-priority mode. This segmentation enables reliable charge amount maintenance while maintaining flexibility to respond to varying grid conditions.
Solution Approach 2:
The patent changes the control parameters dynamically based on the charge amount state. By monitoring the charge amount and comparing it against predefined thresholds, the system adjusts its operational parameters (charging power, discharging power) to maintain the charge amount within the desired range, thereby resolving the contradiction between flexibility and reliability.
2Productivity
If the secondary battery charges and discharges continuously to meet varying energy demand, then the system can provide energy storage services, but the charge amount becomes unstable and deviates from proper levels
Solution Approach 1:
The patent implements a feedback control mechanism where the system continuously monitors the charge amount and adjusts charging/discharging operations based on threshold comparisons. When the charge amount exceeds the first threshold, discharge power is increased; when it falls below the second threshold, charge power is increased. This feedback loop maintains charge amount stability while enabling continuous energy storage services.
Solution Approach 2:
The patent introduces dynamic control adjustments based on the real-time charge amount state. The system transitions between different operational modes (charge-priority, discharge-priority) dynamically, allowing the charge amount to remain stable within the bounded range while maintaining productivity through continuous energy storage and discharge operations.
3Power
If the energy storage system scales up to satisfy peak load demands, then sufficient power supply capacity is achieved, but the system becomes less adaptable to seasonal and temporal variations in peak load
Solution Approach 1:
The patent enables the energy storage system to dynamically adjust its charge/discharge operations based on real-time charge amount monitoring and threshold comparisons. This dynamic control allows the system to maintain adequate power supply capacity while adapting flexibly to varying peak load demands across different seasons and times, eliminating the need for oversized capacity that would reduce adaptability.
Data Source
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AI summary
The present disclosure discloses an apparatus and method for maintaining a charge amount of a secondary battery. The present disclosure reduces a charge amount or increases a discharge amount when a larger charge amount than a required proper charge amount is charged in the secondary battery. Also, the present disclosure reduces a discharge amount or increases a charge amount when a smaller charge amount than a required proper charge amount is charged in the secondary battery. Through this, a proper charge amount may be maintained.