Power Generation Leveling via Battery Storage and Dynamic Rate Scheduling
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Solution Overview
Problem
Existing systems fail to effectively level power generation according to time periods, especially with the increasing flexibility in power rates set by electric power companies and consumers post-deregulation.
Innovation Solution
A power generation leveling system that includes a sales management device to decide the sale destination of power generated during low demand periods and a purchased power management device with a battery for storing and outputting power during high demand periods, allowing users to transmit desired power rates and schedule charging and sales.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electric power companies prepare facilities to deal with peak demand periods, then power supply reliability during peak periods is improved, but facility operation efficiency deteriorates due to idle capacity during low demand periods
Solution Approach 1:
The system performs preliminary action by charging batteries during low demand periods when facilities operate efficiently. The purchased power management device stores electricity in advance during off-peak hours, so that during peak demand periods, the stored power can be discharged to supplement supply, thereby maintaining facility efficiency while ensuring reliability.
2Productivity
If electric power companies stop facility operation during low demand periods to match demand, then facility operation efficiency is improved, but power supply reliability deteriorates during subsequent peak periods
Solution Approach 1:
The battery storage system acts as an intermediary between the power generation facilities and the grid. During low demand periods, facilities charge the batteries instead of shutting down. During peak periods, the batteries discharge to supplement grid supply, thus maintaining facility operation efficiency while ensuring continuous reliable power supply through the intermediary storage mechanism.
3Productivity
If existing systems use fixed power rates for different time periods, then power generation leveling is partially achieved, but flexibility to adapt to deregulated power rates deteriorates
Solution Approach 1:
The system introduces dynamics by allowing users to freely set purchase rates for different time periods rather than using fixed predetermined rates. The sale destination decision part dynamically determines optimal charging times based on user-defined rates and current power prices, enabling the system to adapt flexibly to deregulated power rates while achieving power generation leveling through user-customized rate structures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This system enables the utilization of power generated during low demand periods to level electric power demand and generation, improving operational efficiency by using facilities during peak demand times and reducing generation during peak hours.
Implementation Method 1
a purchased power management device with a battery for storing and outputting power during high demand periods
Data Source
AI summary
A communication part of a purchased power management device transmits, in response to an instruction from a user, rate information indicating a rate of power that the user wants to purchase to a sales management device. A charging part of the purchased power management device charges the battery at a date and time designated by the sales management device. A power output part of the purchased power management device outputs power stored in the battery during a time period of high electric power demand. A sale destination decision part of the sales management device decides a sale destination of the power generated during a time period of low electric power demand on a basis of the rate indicated by the rate information. A sales date and time information transmission part of the sales management device transmits sales date and time information designating a date and time when power is sold to the sale destination decided by the sale destination decision part.