EV Charge Discharge Control via Dynamic Reward Plans
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Solution Overview
Problem
Conventional timer-controlled electric storage installations face challenges in optimizing energy consumption and environmental performance, particularly with the increasing use of electric vehicles, as they struggle to adapt to dynamic power demand and provide incentives for users to participate in charge/discharge management programs.
Innovation Solution
A charge/discharge control apparatus that periodically receives reward information based on supply-demand balance and installation capacity, creating user-friendly charge/discharge plans while monitoring and reporting actual actions, allowing for partial contributions to the environment and offering incentives to users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If timer control is used for charge/discharge operations, then operational simplicity is maintained, but adaptability to dynamic power demand and optimization of whole power system performance deteriorates
Solution Approach 1:
The patent transitions from static timer control to dynamic control by introducing a computing unit that receives real-time reward information reflecting power system supply-demand balance and installation capacity. The charge/discharge plan is dynamically adjusted based on changing system conditions, enabling adaptation to variable power demand while maintaining user-friendly operation through automated decision-making.
Solution Approach 2:
The system changes operational parameters by introducing reward information as a new control variable that reflects power system state. Instead of fixed timer schedules, the charge/discharge operations are controlled by variable parameters (reward values) that change according to system conditions, allowing optimization of both operational simplicity and adaptability.
2Loss of energy
If online-controlled optimization of the whole power system is performed, then environmental performance and energy consumption optimization are improved, but system complexity and computational requirements increase
Solution Approach 1:
The patent introduces an external facility as an intermediary that performs complex computations for determining reward information based on power system supply-demand balance. The charge/discharge control apparatus itself remains relatively simple, receiving pre-computed reward values and executing charge/discharge operations based on these values, thus distributing complexity across the system architecture.
Solution Approach 2:
The system implements feedback control by periodically receiving reward information that reflects the current state of the power system. This feedback loop enables the computing unit to adjust charge/discharge plans based on real-time system conditions, optimizing energy consumption while maintaining manageable system complexity through iterative refinement rather than complex centralized control.
3Object-generated harmful factors
If charge/discharge plans are created to maximize social benefit, then environmental performance is improved, but user convenience and participation incentive may deteriorate
Solution Approach 1:
The patent applies partial action by allowing users to contribute partially to environmental optimization through charge/discharge operations. The computing unit creates plans that reflect both system optimization needs and user constraints, accepting that complete optimization may not always be achievable. This partial contribution approach maintains user convenience while still achieving environmental benefits.
Solution Approach 2:
The system enables users to self-manage their charge/discharge operations based on reward information. Users can review proposed plans, make adjustments according to their needs, and execute operations at their convenience. This self-service approach empowers users to participate in environmental optimization without sacrificing personal convenience, as they retain control over their own charge/discharge timing and quantity.
Data Source
AI summary
A charge/discharge control apparatus includes: a charge/discharge reward information receiving unit for receiving charge/discharge reward information representing a reward given to a charge/discharge action of a customer and a restriction in conducting a charging/discharging from a charge management central server; a computing unit for creating a charge/discharge plan including a total charging quantity in a time zone and an estimated use start time of an electric vehicle such that a reward is maximized, based on the charge/discharge reward information; a charge/discharge instruction transmitting unit for instructing the electric vehicle to start or finish a charging/discharging according to the charge/discharge plan; a charge/discharge quantity monitoring unit for monitoring the charging/discharging; and a charge/discharge results transmitting unit for transmitting results of monitored charging/discharging including contents of the conducted charging/discharging and individual identification information for identifying itself, to a charge management central server.