Power Supply Demand Prediction System for Utility Groups

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Solution Overview

Problem

Current power supply and demand prediction systems for utility customer groups are unable to accurately forecast power supply and demand due to unpredictable battery storage capacities and power generation levels, making it difficult for power distribution providers to manage demand response effectively.

Innovation Solution

A power supply and demand prediction system that includes individual stored power acquisition, demand prediction, power generation prediction, and stored power prediction units to accurately forecast the power supply and demand of utility customer groups, allowing for targeted demand response requests based on predicted surplus or deficit power levels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If power accommodation between utility customers is frequently performed, then power utilization efficiency is improved, but prediction accuracy of supply and demand for utility customer group deteriorates

Engineering Contradiction:
Improvepower utilization efficiencyVSAvoidprediction accuracy of supply and demand
Core Design Contradiction:
Loss of energyVSMeasurement precision

Solution Approach 1:

The patent segments the utility customer group into individual customers, each with their own battery storage and power generation devices. By predicting supply and demand at the individual level and then aggregating, the system maintains prediction accuracy even as power accommodation between customers increases. This segmentation allows tracking of each customer's battery status independently, preventing the loss of predictive information.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system implements feedback by continuously monitoring actual power supply and demand data, comparing it with predictions, and using this information to improve future predictions. The prediction unit receives feedback from measurement units that track battery stored power, power generation, and power consumption, enabling the system to maintain accuracy despite frequent power accommodation events.

Inventive Principle:
Principle #23Feedback

2Measurement precision

If individual battery stored power is tracked for each utility customer, then prediction accuracy of supply and demand is improved, but system complexity increases

Engineering Contradiction:
Improveprediction accuracy of supply and demandVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The prediction unit serves multiple functions simultaneously: it predicts power supply from batteries, predicts power generation from renewable sources, predicts power consumption by customers, and aggregates these to predict overall supply and demand for the utility customer group. This multi-functionality reduces the need for separate specialized systems for each prediction task.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines individual customer predictions into a group-level prediction by aggregating the supply and demand data. This merging approach maintains the detailed information needed for accurate prediction while presenting a consolidated view that simplifies overall system management and reduces the complexity of coordinating multiple independent prediction systems.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP3422516B1Power supply and demand prediction system, power supply and demand prediction method and power supply and demand prediction program
Publication Date: 2021.02.17 OMRON CORP
  • EP3422516B1 patent drawingFigure 1
  • EP3422516B1 patent drawingFigure 2
  • EP3422516B1 patent drawingFigure 3

AI summary

The power supply and demand prediction system (10) predicts the power supply and demand of a group G that includes multiple utility customers, and is provided with a communication unit (11), a demand prediction unit (12), a power generation prediction unit (13), and a stored power prediction unit (14). The communication unit (11) acquires the amount of power stored in each of multiple power storage devices (23) belonging to the group G. The demand prediction unit (12) predicts the amount of demand for power for each utility customer. The power generation prediction unit (13) predicts the amount of power generated by each of multiple solar panels (21) belonging to the group G. The stored power prediction unit (14) predicts the amount of power stored in each battery on the basis of the amount of stored power acquired for each power storage device (23), the amount of demand predicted for each utility customer, and the amount of generated power predicted for each solar panel (21).