Power Demand Plan Adjusting Device for Grid Load Optimization
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Solution Overview
Problem
Conventional power demand planning technologies often result in suboptimal plans for thermal and hydro power generation, as well as hot water plans, which are calculated independently, leading to inefficiencies and increased costs.
Innovation Solution
A device and method that adjusts power demand plans by communicating with supply-demand and demand planning devices to optimize power pricing, group rechargeable batteries, and recalculate demand based on statistically computed values, ensuring that power is charged during low-price periods and reduced during high-price periods, thereby optimizing overall power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power demand planning is conducted independently for thermal power generation, hydro power generation, and hot water plans, then each plan can be optimized separately, but the overall optimal plan cannot be achieved and system efficiency is reduced
Solution Approach 1:
The patent combines multiple independent planning systems (thermal power generation planning, hydro power generation planning, hot water planning) into a unified power demand planning system. The adjusting device integrates these separate plans and coordinates them together, enabling the system to achieve overall optimal planning rather than isolated sub-optimizations, thereby improving overall planning efficiency.
2Loss of energy
If rechargeable batteries charge during high-power-price periods, then power demand is met, but power costs increase and optimal pricing strategy is compromised
Solution Approach 1:
The patent implements preliminary charging action by controlling rechargeable batteries to charge during low-power-price periods before the high-demand high-price periods occur. The adjusting device predicts future power price patterns and schedules battery charging in advance during economical periods, thereby reducing overall power costs while ensuring power availability is maintained through the battery storage system.
3Productivity
If power price is raised to reduce demand during peak periods, then optimal demand is approached, but demand planning complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the adjusting device continuously monitors the difference between planned demand and optimal demand values, then adjusts power prices accordingly. When planned demand exceeds optimal demand, the device raises prices to signal consumers to reduce demand; when planned demand is below optimal demand, the device lowers prices to encourage demand. This closed-loop feedback system automates the complex price adjustment process.
4Measurement precision
If statistical computation is performed on all rechargeable batteries individually, then precise demand planning is achieved, but calculation load becomes excessive
Solution Approach 1:
The patent segments the population of rechargeable batteries into multiple groups based on their characteristics and behavior patterns. The adjusting device performs statistical computations on each group separately rather than on all batteries individually. This segmentation approach maintains sufficient planning precision while significantly reducing the overall calculation load and processing requirements.
Data Source
AI summary
The economical load distribution adjusting device 10 acquires an optimal hydroelectric output, optimal demand, and optimal power price from the supply-demand planning device 23, acquires the planned hydroelectric output planned by the water level planning devices 21, and acquires a planned demand planned by the charge control devices 22. The economical load distribution adjusting device 10 reduces the power price of the time at which the planned hydroelectric output exceeds the optimal output and makes the water level planning devices 21 replan the hydroelectric output, and raises the power price of the time at which the planned demand exceeds the optimal demand and makes the charge control devices 22 replan the amount of demand.