Demand response system
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Solution Overview
Problem
Existing demand-response systems face challenges in accurately controlling power usage across diverse devices without developing shared commands tailored to each device's specifications, as manufacturers find it difficult to disclose and standardize control specifications, hindering participation in such systems.
Innovation Solution
A demand-response system utilizing first and second aggregator apparatuses that perform control operations using dedicated commands specific to each device group, allowing for accurate power adjustment without needing standardized control specifications or shared commands across all devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the demand-response server controls power usage of diverse devices by using commands tailored to each device's control specifications, then the accuracy of demand-response control is improved, but the complexity and cost of preparing device-specific commands increases significantly
Solution Approach 1:
The system divides the command structure into two segments: standardized common commands for upper-tier aggregators and device-specific dedicated commands for lower-tier aggregators. This segmentation allows each layer to operate with appropriate command types, reducing overall system complexity while maintaining control accuracy.
Solution Approach 2:
Lower-tier aggregators act as intermediaries between the upper-tier aggregator and diverse devices. These intermediaries translate standardized common commands into device-specific dedicated commands, eliminating the need for the upper-tier server to directly manage device-specific command complexity.
2Ease of operation
If standardized control specifications are designed for diverse devices to enable control by shared commands, then the ease of operation is improved, but the difficulty of obtaining control specifications from manufacturers increases
Solution Approach 1:
The system implements partial standardization by establishing standardized common commands for basic operations while allowing device-specific dedicated commands for manufacturer-specific functions. This partial approach reduces the burden on manufacturers to fully standardize while still achieving sufficient ease of operation for core demand-response functions.
Solution Approach 2:
The lower-tier aggregators are designed with universal functionality to support multiple device types through dedicated commands. This universality at the intermediary layer compensates for the lack of full standardization, enabling the system to operate diverse devices without requiring complete specification disclosure from all manufacturers.
3Device complexity
If the upper-tier aggregator sends common commands to all aggregators, then the simplicity of command management is improved, but the ability to achieve accurate control for specific device groups decreases
Solution Approach 1:
The system adds a hierarchical dimension to command management, with two distinct command layers operating at different levels. Common commands operate at the upper-tier aggregator level for broad power adjustment, while dedicated commands operate at the lower-tier aggregator level for precise device-group-specific control. This dimensional separation resolves the contradiction between simplicity and precision.
Data Source
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AI summary
Provided is a demand-response system for controlling the power usage of devices, wherein accurate demand-response can be achieved without developing a shared command for controlling all devices. A demand-response system (1A) is provided with first and second aggregators (10, 20) and a power aggregator (30). The first aggregator performs demand-response-related control of a first heating device group (100) including a heat pump device, and the second aggregator performs demand-response-related control of a second heating device group (200). The power aggregator sends a second power adjustment request to the first and second aggregators using a command being common to the first and second aggregators. In accordance with the second power adjustment request, the first aggregator performs demand-response-related control of the first heating device group using a first dedicated command, and the second aggregator performs demand-response-related control of the second heating device group using a second dedicated command that is different from the first dedicated command.