Energy Storage Thermal Control Using Charge-Discharge State Feedback
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Solution Overview
Problem
The existing thermal management systems for energy storage systems primarily focus on battery and ambient temperatures, neglecting charging and discharging states, which leads to inefficient thermal management, reduced battery performance, and shortened service life.
Innovation Solution
A method for thermal management of energy storage systems that comprehensively considers temperature information of both the energy storage unit and the thermal management component, along with charging and discharging information, to determine a more reasonable thermal management strategy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thermal management strategy is determined based only on battery and ambient temperatures, then the control system is simple, but thermal management effectiveness is poor and battery performance is reduced
Solution Approach 1:
The patent implements a feedback mechanism by continuously monitoring multiple state parameters (battery temperature, thermal management component temperature, charging/discharging state) and using this feedback to dynamically adjust the thermal management strategy. The control system compares actual state information with target values and modifies control parameters accordingly, creating a closed-loop control system that improves thermal management effectiveness while maintaining reasonable complexity through systematic parameter integration.
Solution Approach 2:
The patent changes the parameters considered in thermal management control from simple temperature-only monitoring to a multi-parameter approach that includes battery temperature, thermal management component temperature, and charging/discharging state. This parameter expansion allows the system to make more informed decisions about thermal management strategies, improving effectiveness by considering the actual operational context of the battery system.
2Duration of action of stationary object
If thermal management strategy is determined based only on battery and ambient temperatures, then the control logic is simple, but battery service life is shortened
Solution Approach 1:
The patent extends the parameter set for control decisions to include not only battery temperature but also thermal management component temperature and charging/discharging state. This multi-parameter approach enables the system to identify optimal thermal management strategies that protect battery health across different operational conditions, thereby extending battery service life through more nuanced control.
Solution Approach 2:
The system performs preliminary assessment of multiple state parameters before determining thermal management actions. By evaluating battery temperature, thermal management component temperature, and charging/discharging state in advance, the system can proactively adjust control parameters to prevent conditions that would harm battery longevity, rather than reacting to problems after they occur.
3Loss of energy
If thermal management strategy is determined based only on battery and ambient temperatures, then the system operates simply, but unnecessary power consumption occurs
Solution Approach 1:
The patent introduces additional parameters (thermal management component temperature and charging/discharging state) to the control decision-making process. This enables the system to distinguish between situations where active thermal management is necessary and situations where it would be wasteful, thereby reducing unnecessary power consumption while maintaining appropriate thermal control when needed.
Solution Approach 2:
The system applies thermal management actions selectively rather than continuously. By monitoring multiple parameters, the system can determine when partial or no thermal management action is appropriate, avoiding excessive power consumption during conditions where full thermal management is not required, while still providing adequate protection when conditions demand it.
Data Source
AI summary
A method for thermal management of an energy storage system includes: acquiring state information of the energy storage system, wherein the state information includes temperature information and charging and discharging information of an energy storage unit of the energy storage system as well as temperature information of a thermal management component of the energy storage system; and determining a thermal management strategy of the energy storage system according to the state information.