Battery DR Participation Control Using Health and Use Duration
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Solution Overview
Problem
The excessive participation of vehicle batteries in demand response (DR) programs leads to battery degradation, reducing their usability and value over time, as existing technologies lack effective criteria for managing energy supply based on battery health and usage duration.
Innovation Solution
A management apparatus that acquires battery usage duration and health indices to determine a priority for participating in DR, using allowable and guideline reference values to balance energy supply and battery preservation, thereby preventing degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the battery participates in DR programs frequently, then the energy supply to the electric power trade market is increased, but the battery degradation accelerates and usability is reduced
Solution Approach 1:
The patent changes the parameter of DR participation priority from a fixed value to a dynamic value that varies based on battery use duration and degradation state. As the battery ages or degrades, its priority for DR participation is reduced, automatically adjusting the balance between energy supply and battery preservation based on real-time battery conditions
Solution Approach 2:
The system implements feedback by continuously monitoring battery use duration and degradation state, then using this information to adjust DR participation priorities. The management apparatus receives battery information, evaluates it against predetermined criteria, and dynamically determines participation priorities, creating a closed-loop control system that prevents excessive battery stress
2Loss of energy
If the battery continues to participate in DR excessively, then the energy supply is maximized, but the battery degradation impairs actual usability and reduces used car value
Solution Approach 1:
The patent applies preliminary action by establishing predetermined reference values and evaluation criteria before battery degradation becomes severe. The management apparatus proactively evaluates battery status against these pre-set thresholds and adjusts DR participation priorities before significant degradation occurs, preventing harmful effects rather than reacting to them
Solution Approach 2:
The system transitions from a static DR participation model to a dynamic one where participation priority changes continuously based on battery condition. The priority is not fixed but adapts in real-time according to use duration and degradation state, allowing maximum energy supply when battery is healthy while automatically reducing stress as battery ages
Data Source
AI summary
A management apparatus includes: a use duration acquisition portion that acquires a use duration of a battery provided on a movable body; an index acquisition portion that acquires an index indicating a degradation state of the battery; an allowable reference value acquisition portion that acquires an allowable reference value which becomes a criterion of whether or not to allow a supply of electric power from the battery to an electric power trade market and is determined in accordance with the use duration of the battery; and a determination portion that determines a priority for determining whether or not to supply electric power to the electric power trade market in accordance with the use duration of the battery, the index, and the allowable reference value.