HEMS CEMS Power Allocation Fairness
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Solution Overview
Problem
Existing power management systems struggle to uniformly reduce power consumption across multiple consumers, leading to potential unfairness and inefficiency in responding to power curtailment signals, as they do not account for individual consumer capabilities and priorities.
Innovation Solution
A power management system comprising a Home Energy Management System (HEMS) and a Community Energy Management System (CEMS) that categorize loads based on priority, allowing for targeted power reduction by receiving and transmitting reducible power information, enabling the CEMS to allocate power reduction across consumers based on their capabilities and priorities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If power curtailment signals are transmitted to each power management apparatus to reduce total power consumption, then the power company's power supply stability is improved, but individual consumers may experience unfair power reduction allocation and operational disruption
Solution Approach 1:
The patent segments the power management system into two levels: individual consumer power management apparatuses that manage local loads, and a community energy management system that coordinates across multiple consumers. This segmentation allows fair distribution of power curtailment by treating each consumer as an independent decision-making unit while achieving collective power reduction goals through community-level coordination.
Solution Approach 2:
The patent implements local quality by allowing each consumer to define priority levels for different loads based on their specific needs and circumstances. This enables customized power management where essential loads maintain operation while non-essential loads are curtailed, ensuring operational fairness tailored to each consumer's local conditions rather than uniform power cuts.
2Device complexity
If uniform power reduction is applied across all consumers, then implementation simplicity is improved, but individual consumer needs and load priorities are not considered leading to inefficiency
Solution Approach 1:
The patent introduces dynamic power management where each consumer can adjust load priority settings and the community energy management system dynamically allocates power reduction targets based on real-time conditions. This dynamic approach improves power reduction efficiency by adapting to individual consumer needs while maintaining reasonable implementation complexity through automated coordination.
Solution Approach 2:
The patent enables self-service by allowing each consumer to independently define their load priorities and power management preferences. The community energy management system then automatically coordinates these individual preferences to achieve collective power reduction goals, eliminating the need for complex centralized control while improving efficiency through localized decision-making.
3Ease of operation
If detailed load priority information is collected from each consumer, then fair and efficient power allocation is improved, but system complexity and information processing requirements increase
Solution Approach 1:
The patent introduces a community energy management system as an intermediary that collects, processes, and coordinates load priority information from multiple consumers. This intermediary handles the complexity of information aggregation and allocation optimization, allowing individual consumers to provide simple priority inputs while achieving fair and efficient power allocation through the intermediary's coordination capabilities.
Data Source
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AI summary
A power management system comprises a plurality of HEMSs 10 and a CEMS 40. The CEMS 40 transmits, to each HEMS 10, a notification request for requesting a notification of an amount of power that can be reduced from power currently consumed by a load connected to each HEMS 10, in response to a power curtailment signal. Each HEMS 10 transmits, to the CEMS 40, reducible power information including the amount of power that can be reduced from the power currently consumed, in response to the notification request. The CEMS 40 transmits, to each HEMS 10, power reduction information including an amount of power that should be reduced in each consumer 70, in response to the power curtailment signal and the reducible power information.