Power Supply Management System with Dynamic Pricing for Load Leveling
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Solution Overview
Problem
Existing power supply management systems struggle to effectively level power consumption across different time slots, particularly due to the fixed usage patterns of high power consumption loads like vehicle-mounted storage batteries, which limits the ability to shift power usage from high to low demand periods.
Innovation Solution
A power supply management system that sets distinct power fee unit prices for different electrical load devices, with a lower fee for high power consumption devices like vehicle-mounted storage batteries, to encourage usage during off-peak hours, and adjusts prices based on predicted load factors and excess solar-generated power to optimize transformer capacity and reduce waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single power fee unit price is set for all electrical load devices, then the system is simple to operate, but high power consumption loads cannot be effectively shifted to off-peak hours
Solution Approach 1:
The power fee structure is segmented into different categories: a first power fee unit price for household electrical loads and a second power fee unit price for high power consumption loads. This segmentation allows differentiated pricing strategies for different types of appliances, enabling more effective load shifting for high power devices while maintaining simplicity for common household items.
Solution Approach 2:
Different power fee rates are applied to different types of electrical load devices based on their power consumption characteristics. High power consumption loads receive a second power fee unit price that is lower than the first power fee unit price applied to household electrical loads, creating localized pricing quality that matches the specific needs of each device category.
2Productivity
If the second power fee unit price is set lower than the first power fee unit price, then high power consumption loads are incentivized to run during off-peak hours, but the complexity of fee management increases
Solution Approach 1:
The fee management system is segmented into two distinct pricing categories with clear differentiation between household electrical loads and high power consumption loads. This segmentation simplifies management by creating discrete, easily identifiable fee structures rather than requiring complex continuous adjustments.
Solution Approach 2:
The system changes the power fee unit price parameter based on the type of electrical load device and time slot. By establishing predetermined parameters (first power fee for household loads, second power fee for high power loads), the system manages complexity through standardized parameter sets rather than ad-hoc pricing decisions.
3Productivity
If power fees are adjusted based on predicted load factors and solar-generated power, then the system optimizes transformer capacity utilization, but the system complexity increases
Solution Approach 1:
The system performs preliminary actions by predicting load factors and solar-generated power in advance to set appropriate power fee unit prices before peak demand periods. This advance planning allows the system to optimize transformer capacity utilization by preparing pricing strategies that encourage load shifting, rather than reacting to conditions in real-time.
Solution Approach 2:
The system incorporates feedback mechanisms where power fee unit prices are adjusted based on predicted load factors and excess solar-generated power. This feedback loop allows the system to respond to grid conditions and renewable energy availability, optimizing transformer capacity while managing complexity through rule-based adjustments rather than fully dynamic control.
Data Source
AI summary
A power supply management system according to an embodiment of the present invention includes a fee setting unit configured to set power fee unit prices (first power fee unit price and second power fee unit price) for each time slot, and a notification unit configured to notify a consumer of information on the set power fee unit prices. The first power fee unit price is a power unit price for a household electrical load, and the second power fee unit price is a power unit price in a case of using a charge/discharge device to charge a vehicle-mounted storage battery. The fee setting unit is configured to set, by predicting a load factor of a transformer, a discount rate of the second power fee unit price to become higher (second power fee unit price to become lower) as the predicted load factor becomes lower. The second power fee unit price is determined on the basis of the first power fee unit price and the discount rate.