Upper Power Management Apparatus for Fair DR Distribution
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Solution Overview
Problem
Existing power management systems lack the ability to appropriately distribute and manage power reduction across multiple consumers, leading to potential unfairness and inefficiencies in responding to power curtailment signals from utilities.
Innovation Solution
A power management system comprising multiple lower power management apparatuses for individual consumers and an upper power management apparatus that transmits configuration information and reduction instructions, allowing for targeted power reduction based on consumer categories and available renewable energy sources, ensuring fair and efficient power curtailment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a power company transmits a power curtailment signal to reduce total power consumption, then the overall power consumption is reduced, but the distribution of power reduction across multiple consumers becomes unfair and inefficient
Solution Approach 1:
The system segments the power management function into two levels: an upper power management apparatus that manages multiple consumers and a lower power management apparatus at each consumer level. This segmentation allows the upper apparatus to distribute power curtailment signals fairly and efficiently across multiple consumers based on their individual characteristics and power source availability, while the lower apparatus executes the specific power reduction actions.
Solution Approach 2:
The upper power management apparatus acts as an intermediary between the power company and multiple lower power management apparatuses. It receives the power curtailment signal from the power company and translates it into appropriate power reduction instructions for each consumer, ensuring fair and efficient distribution of the curtailment burden based on each consumer's configuration information.
2Loss of energy
If power reduction is applied uniformly across all consumers, then total power consumption is reduced, but consumers with different configurations and renewable energy sources are treated unfairly
Solution Approach 1:
The system applies local quality by tailoring the power curtailment strategy to each consumer's local characteristics. The upper power management apparatus collects configuration information from each lower apparatus (including renewable energy source capacity and consumer type) and distributes power reduction instructions that are customized to each consumer's situation, ensuring that consumers with different configurations are treated fairly according to their specific capabilities.
3Productivity
If the system collects detailed configuration information from all consumers, then power curtailment can be optimized, but the system complexity increases
Solution Approach 1:
The system merges the data collection and distribution management functions into the upper power management apparatus. This centralization allows the upper apparatus to collect configuration information from all lower apparatuses, process this information to determine optimal power curtailment strategies, and distribute appropriate instructions, thereby achieving optimization without requiring complex distributed decision-making at each consumer level.
Data Source
AI summary
A power management system comprises a plurality of HEMSs 10 and a CEMS 40. The CEMS 40 transmits, to a power company 60, configuration information of the plurality of consumers 70 managed by the CEMS 40. The power curtailment signal (DR; Demand Response) transmitted from the power company 60 to the CEMS 40 is determined in accordance with the configuration information. The upper power management apparatus transmits, to each HEMS 10, reduction information including an amount of power that should be reduced in each consumer 70 in response to a power curtailment signal transmitted from the power company 60 after transmitting the configuration information.