Power Conversion Device Output Suppression Status Communication
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Solution Overview
Problem
Current power management systems lack the ability to effectively transmit and manage output suppression messages from external servers to power conversion apparatuses without involving power management apparatuses, resulting in a lack of knowledge about the output suppression status of dispersed power sources.
Innovation Solution
A power conversion apparatus with a first communication unit to receive output suppression messages from external servers and a second communication unit to transmit predetermined messages with output suppression information to power management apparatuses, allowing the power management apparatuses to grasp the output suppression status of dispersed power sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the power conversion apparatus directly receives output suppression messages from external servers without involving power management apparatuses, then communication efficiency is improved, but the power management apparatus loses knowledge about the output suppression status
Solution Approach 1:
The power conversion apparatus periodically transmits status information including output suppression status to the power management apparatus. This feedback mechanism ensures that the power management apparatus maintains knowledge about the current operating state, grid status, and output suppression level even when direct communication with external servers is used for efficiency.
Solution Approach 2:
The power conversion apparatus acts as an intermediary that receives output suppression messages from external servers and simultaneously communicates this status information to the power management apparatus. This mediator role allows efficient direct reception while maintaining information flow to the management system through standardized message formats.
2Loss of information
If the power conversion apparatus transmits detailed output suppression information to the power management apparatus, then information completeness is improved, but communication data volume increases
Solution Approach 1:
The status information message extracts only the essential elements needed for power management - specifically the output suppression status, current output level, and grid connection state - rather than transmitting all possible operational parameters. This selective extraction maintains information completeness for management purposes while minimizing data volume.
Solution Approach 2:
The system transmits output suppression status as discrete parameter states (e.g., suppression level indicators, on/off states, threshold comparisons) rather than continuous detailed measurements. This parameterization reduces data volume while preserving the essential information needed for power management decisions.
Data Source
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AI summary
A power conversion apparatus comprises a first communication unit configured to receive, from an external server, an output suppression message instructing output suppression of a dispersed power source; and a second communication unit configured to perform communication of a predetermined message having a predetermined format with a power management apparatus that manages power information of a consumer's facility. The predetermined format includes an information element capable of storing output suppression information related to the output suppression of the dispersed power source. The second communication unit is configured to transmit the predetermined message including the output suppression information as an information element to the power management apparatus.