Power Management Device Pattern Grouping for Grid Load Reduction
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Solution Overview
Problem
Existing power management techniques either fail to optimize energy balance for individual consumers or require expensive computers to determine charging/discharging schedules, leading to high processing loads when dealing with multiple consumers.
Innovation Solution
A power management device that classifies monitoring power patterns for each building into sets, determining control content for charging and discharging electric storage apparatuses to minimize grid power usage and carbon dioxide emissions, reducing the overall calculation and processing load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If charging/discharging schedules are determined individually for each consumer using embedded apparatuses, then energy balance optimization for individual consumers is achieved, but processing capacity becomes insufficient and expensive computers are needed
Solution Approach 1:
The patent combines multiple consumers with similar power consumption patterns into the same power pattern group. By merging these consumers and determining a single charging/discharging schedule for the group, the system achieves energy balance optimization without requiring expensive computers at each consumer location, thus resolving the contradiction between optimization precision and processing capacity requirements.
Solution Approach 2:
The patent creates universal charging/discharging schedules that can be applied to multiple consumers within the same power pattern group. This universal approach allows a single schedule to serve multiple consumers, reducing the computational burden while maintaining optimization effectiveness for each individual consumer's energy balance.
2Ease of manufacture
If a centralized computer determines charging/discharging schedules for multiple consumers, then expensive computers are not needed at individual consumer locations, but the calculation amount becomes huge and processing load increases
Solution Approach 1:
The patent segments consumers into distinct power pattern groups based on their power consumption characteristics. This segmentation divides the huge calculation problem into smaller, manageable sub-problems, where schedules are determined for each group rather than for every individual consumer. This reduces the overall calculation amount and processing load on centralized computers while maintaining optimization effectiveness.
Solution Approach 2:
The patent applies partial action by determining charging/discharging schedules for power pattern groups rather than for every individual consumer. This partial approach focuses computational resources on group-level optimization, which is sufficient to achieve energy balance improvement without requiring exhaustive individual optimization, thus reducing processing load while maintaining effectiveness.
3Productivity
If consumers are divided into multiple power pattern groups, then calculation amount is reduced, but individual consumer energy balance optimization becomes less precise
Solution Approach 1:
The patent applies local quality by creating specific charging/discharging schedules tailored to each power pattern group's characteristics. Each group receives optimization targeted to its local power consumption patterns, ensuring that individual consumer energy balance needs are met with precision appropriate to their specific pattern, rather than applying a uniform approach to all consumers.
Data Source
AI summary
Power management device includes memory, classification portion, planning portion and indication portion. Classification portion classifies a change in monitoring power during a unit period with respect to each of buildings, stored in memory, into any one of kinds of electric power patterns. Planning portion determines pattern sets based on the kinds of electric power patterns, and determines control content for charging and discharging of electric storage apparatus with respect to each pattern set under condition of minimizing any one of amount of electric power to be received from power grid, compensation of amount of electric power to be received from power grid, and amount of carbon dioxide to be exhausted. Indication portion indicates control content corresponding to each of pattern sets determined by planning portion to electric storage apparatus of a building, which each pattern set conforms with, of the buildings.